Subject term: catalysts - PubAg Search Results

1. Activation of sulfite by metal-organic framework-derived cobalt nanoparticles for organic pollutants removal

Author:: Xianjie Feng; Deming Wu; Xueyi Shen; Yu Guo; Yangyang Lv; Aihua Xu; Xiaoxia Li
Source:: Journal of environmental sciences (China) 2023 v.124 pp. 350-359
ISSN:: 1001-0742
Subject:: aqueous solutions; catalysts; cobalt; coordination polymers; dissolved oxygen; graphene; methyl orange; oxidation; pyrolysis; sulfites; synergism; China
Abstract:: ... Sulfite (SO₃²⁻) activation is one of the most potential sulfate-radical-based advanced oxidation processes, and the catalysts with high efficiency and low-cost are greatly desired. In this study, the cobalt nanoparticles embedded in nitrogen-doped graphite layers (Co@NC), were used to activate SO₃²⁻ for removal of Methyl Orange in aqueous solution. The Co@NC catalysts were synthesized via pyrolysi ...
DOI:: 10.1016/j.jes.2021.09.035
: https://doi.org/10.1016/j.jes.2021.09.035

2. Advanced oxidative degradation of sulfamethoxazole by using bowl-like FeCuS@Cu2S@Fe0 catalyst to efficiently activate peroxymonosulfate

Author:: Xiaobo Wang; Yu Zhou; Sylvestre Ndayiragije; Nan Wang; Heqing Tang; Lihua Zhu
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 348-364
ISSN:: 1001-0742
Subject:: X-radiation; catalysts; catalytic activity; electron paramagnetic resonance spectroscopy; liquid chromatography; mass spectrometry; nanohybrids; sulfamethoxazole; China
Abstract:: ... A novel hierarchical bowl-like FeCuS@Cu₂S@Fe⁰ nanohybrid catalyst (B-FeCuS@Cu₂S@Fe⁰) was synthesized for removing sulfamethoxazole (SMX) through catalytic activation of peroxymonosulfate (PMS). It was found that this catalyst exhibited excellently high catalytic activity. Under optimized reaction conditions, all the added SMX (12 mg/L) could be completely degraded within 5 min. The SMX degradation ...
DOI:: 10.1016/j.jes.2022.03.044
: https://doi.org/10.1016/j.jes.2022.03.044

3. Component regulation in novel La-Co-O-C composite catalyst for boosted redox reactions and enhanced thermal stability in methane combustion

Author:: Peiqi Chu; Saifei Wang; Yi Zhang; Shiguang Zhao; Yahan Wang; Jiguang Deng; Erhong Duan
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 459-469
ISSN:: 1001-0742
Subject:: X-ray photoelectron spectroscopy; acidity; activation energy; active oxygen species; adsorption; ammonia; carbon dioxide; catalysts; catalytic activity; combustion; desorption; glycerol; hydrogen; methane; models; oxygen; temperature; thermal stability; China
Abstract:: ... A novel La-Co-O-C (LC-C) composites were prepared via a facile co-hydrothermal route with oxides and glycerol and further optimized for methane catalytic activity and thermal stability via component regulation. It was demonstrated that Co₃O₄ phase was the main component in regulation. The combined results of X-ray photoelectron spectroscopy (XPS), temperature-programmed desorption of oxygen (O₂-TP ...
DOI:: 10.1016/j.jes.2022.04.002
: https://doi.org/10.1016/j.jes.2022.04.002

4. Effect of Cu loading content on the catalytic performance of Cu-USY catalysts for selective catalytic reduction of NO with NH3

Author:: Jie Wan; Haipeng Yang; Yijun Shi; Yanjun Liu; Jin Zhang; Jun Zhang; Gongde Wu; Renxian Zhou
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 445-458
ISSN:: 1001-0742
Subject:: Fourier transform infrared spectroscopy; Lewis acids; X-ray diffraction; adsorption; byproducts; catalysts; catalytic activity; desorption; oxidation; zeolites; China
Abstract:: ... Series of Cu-USY zeolite catalyst with different Cu loading content were synthesized through simple impregnation method. The obtained catalysts were subjected to selective catalytic reduction of NOₓ with NH₃ (NH₃-SCR) performance evaluation, structural/chemical characterizations such as X-ray diffraction (XRD), N₂ adsorption/desorption, H₂ temperature-programmed reduction (H₂-TPR), NH₃ temperature ...
DOI:: 10.1016/j.jes.2022.03.027
: https://doi.org/10.1016/j.jes.2022.03.027

5. Effect of catalyzed diesel particulate filter and its catalyst loading on emission characteristics of a non-road diesel engine

Author:: Yunhua Zhang; Diming Lou; Piqiang Tan; Zhiyuan Hu; Liang Fang
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 794-805
ISSN:: 1001-0742
Subject:: catalysts; catalytic activity; diesel engines; energy use and consumption; filters; oxidation; particle size distribution; China
Abstract:: ... In this study, the effects of a diesel oxidation catalyst (DOC) coupled with a catalyzed diesel particulate filter (CDPF) with different catalyst loadings on the power, fuel consumption, gaseous and particulate emissions from a non-road diesel engine were investigated. Results showed that the after-treatment had a negligible effect on the power and fuel consumption. The reduction effect of the DOC ...
DOI:: 10.1016/j.jes.2021.12.028
: https://doi.org/10.1016/j.jes.2021.12.028

6. Efficient degradation of atrazine through in-situ anchoring NiCo2O4 nanosheets on biochar to activate sulfite under neutral condition

Author:: Lizhen Feng; Yijin Yuan; Xianqin He; Mengsi Wu; Lizhi Zhang; Jingming Gong
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 81-94
ISSN:: 1001-0742
Subject:: atrazine; biochar; catalysts; catalytic activity; density functional theory; energy; nanosheets; oxidation; sulfates; sulfites; tandem mass spectrometry; wastewater; China
Abstract:: ... Sulfite (S(IV)) is a promising substitute for sulfate radical-based advanced oxidation processes. Here, a composite of in-situ anchoring NiCo₂O₄ nanosheets on biochar (BC) was firstly employed as a heterogeneous activator for sulfite (NiCo₂O₄@BC-sulfite) to degrade atrazine (ATZ) in the neutral environment. The synergistic coupling of BC and NiCo₂O₄ endows the resulting composite excellent catalyt ...
DOI:: 10.1016/j.jes.2022.04.033
: https://doi.org/10.1016/j.jes.2022.04.033

7. Electrochemical removal of ammonium nitrogen in high efficiency and N2 selectivity using non-noble single-atomic iron catalyst

Author:: Fengjiao Quan; Guangming Zhan; Bing Zhou; Cancan Ling; Xiaobing Wang; Wenjuan Shen; Jianfen Li; Falong Jia; Lizhi Zhang
Source:: Journal of environmental sciences (China) 2023 v.125 pp. 544-552
ISSN:: 1001-0742
Subject:: ammonium nitrogen; carbon; catalysts; chlorides; density functional theory; electrochemistry; iron; oxidation; pollutants; wastewater; China
Abstract:: ... Ammonia nitrogen (NH₄⁺-N) is a ubiquitous environmental pollutant, especially in offshore aquaculture systems. Electrochemical oxidation is very promising to remove NH₄⁺-N, but suffers from the use of precious metals anodes. In this work, a robust and cheap electrocatalyst, iron single-atoms distributed in nitrogen-doped carbon (Fe-SAs/N-C), was developed for electrochemical removal of NH₄⁺-N from ...
DOI:: 10.1016/j.jes.2022.03.004
: https://doi.org/10.1016/j.jes.2022.03.004

8. Graphitized Cu-β-cyclodextrin polymer driving an efficient dual-reaction-center Fenton-like process by utilizing electrons of pollutants for water purification

Author:: Weixiang Liao; Lai Lyu; Di Wang; Chun Hu; Tong Li
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 565-574
ISSN:: 1001-0742
Subject:: carbon; catalysts; catalytic activity; dissolved oxygen; energy; polymers; wastewater treatment; water purification; China
Abstract:: ... Excessive consumption of energy and resources is a major challenge in wastewater treatment. Here, a novel heterogeneous Fenton-like catalyst consisting of Cu-doped graphene-like catalysts (Cu-GCD NSs) was first synthesized by an enhanced carbothermal reduction of β-cyclodextrin (β-CD). The catalyst exhibits excellent Fenton-like catalytic activity for the degradation of various pollutants under ne ...
DOI:: 10.1016/j.jes.2022.05.022
: https://doi.org/10.1016/j.jes.2022.05.022

9. Heterojunctioned CuO/Cu2O catalyst for highly efficient ozone removal

Author:: Guojun Ma; Wenxiang Tang; Anqi Wang; Le Zhang; Jian Guan; Ning Han; Yunfa Chen
Source:: Journal of environmental sciences (China) 2023 v.125 pp. 340-348
ISSN:: 1001-0742
Subject:: air; catalysts; catalytic activity; electron paramagnetic resonance spectroscopy; electron transfer; oxygen; ozone; pollution; temperature; China
Abstract:: ... In recent years, near surface ozone pollution, has attracted more and more attention, which necessitates the development of high efficient and low cost catalysts. In this work, CuO/Cu₂O heterojunctioned catalyst is fabricated by heating Cu₂O at high temperature, and is adopted as ozone decomposition catalyst. The results show that after Cu₂O is heated at 180°C conversion of ozone increases from 75 ...
DOI:: 10.1016/j.jes.2022.01.032
: https://doi.org/10.1016/j.jes.2022.01.032

10. Insight into phase structure-dependent soot oxidation activity of K/MnO2 catalyst

Author:: Changlong Zheng; Shidong Bao; Danjun Mao; Zhaoyi Xu; Shourong Zheng
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 668-682
ISSN:: 1001-0742
Subject:: catalysts; catalytic activity; cations; desorption; oxidation; potassium; soot; surface area; temperature; China
Abstract:: ... In the present study, two nanosized MnO₂ with β and δ phase structures and potassium loaded MnO₂ catalysts with varied K loading amounts (denoted as K/MnO₂) were prepared. Temperature programmed oxidation and isothermal reactions in loose contact modes were employed to examine the soot oxidation activity of the as-prepared catalysts. Characterization results show that as compared with β-MnO₂, δ-Mn ...
DOI:: 10.1016/j.jes.2022.05.038
: https://doi.org/10.1016/j.jes.2022.05.038

11. Low-temperature VOCs oxidation performance of Pt/zeolites catalysts with hierarchical pore structure

Author:: Jialu Wang; Yijun Shi; Fanzhe Kong; Renxian Zhou
Source:: Journal of environmental sciences (China) 2023 v.124 pp. 505-512
ISSN:: 1001-0742
Subject:: acidity; aromatic compounds; catalysts; oxidation; synergism; zeolites; China
Abstract:: ... Different zeolites supported Pt catalysts with micro-mesoporous structure were prepared by organic base tetrapropylammonium hydroxide (TPAOH) treatment and their catalytic oxidation activity for various volatile organic compounds (VOCs) were evaluated. The results reveal that the synergistic effect between Pt nanoparticles and surface acid sites plays an important role in VOCs low-temperature remo ...
DOI:: 10.1016/j.jes.2021.11.016
: https://doi.org/10.1016/j.jes.2021.11.016

12. Mesoporous molecular sieve-based materials for catalytic oxidation of VOC: A review

Author:: Wei Gao; Xiaolong Tang; Honghong Yi; Shanxue Jiang; Qingjun Yu; Xizhou Xie; Ruijie Zhuang
Source:: Journal of environmental sciences (China) 2023 v.125 pp. 112-134
ISSN:: 1001-0742
Subject:: catalysts; combustion; economic feasibility; environmental quality; human health; ozone; particulates; porosity; porous media; strength (mechanics); surface area; volatile organic compounds; China
Abstract:: ... As the main contributor of the formation of particulate matter as well as ozone, volatile organic compounds (VOCs) greatly affect human health and the environmental quality. Catalytic combustion/oxidation has been viewed as an efficient, economically feasible and environmentally friendly way for the elimination of VOCs. Supported metal catalyst is the preferred type of catalysts applied for VOCs c ...
DOI:: 10.1016/j.jes.2021.11.014
: https://doi.org/10.1016/j.jes.2021.11.014

13. N/Ce doped graphene supported Pt nanoparticles for the catalytic oxidation of formaldehyde at room temperature

Author:: Yaodong Guo; Zhaoying Di; Xiaonan Guo; Ying Wei; Runduo Zhang; Jingbo Jia
Source:: Journal of environmental sciences (China) 2023 v.125 pp. 135-147
ISSN:: 1001-0742
Subject:: adsorption; ambient temperature; catalysts; catalytic activity; formaldehyde; graphene; graphene oxide; oxidation; oxygen; physicochemical properties; reaction mechanisms; surface area; synergism; China
Abstract:: ... Pt catalysts with nitrogen-doped graphene oxide (GO) as support and CeO₂ as promoter were prepared by impregnation method, and their catalytic oxidation of formaldehyde (HCHO) at room temperature was tested. The Pt-CeO₂/N-rGO (reduced GO) with a mass fraction of 0.7% Pt and 0.8% CeO₂ exhibited an excellent catalytic performance with the 100% conversion of HCHO at room temperature. Physicochemical ...
DOI:: 10.1016/j.jes.2021.12.033
: https://doi.org/10.1016/j.jes.2021.12.033

14. Nano-sized alumina supported palladium catalysts for methane combustion with excellent thermal stability

Author:: Wei Shi; Guangyan Xu; Xuewang Han; Yingjie Wang; Zhi Liu; Sen Xue; Nannan Sun; Xiaoyan Shi; Yunbo Yu; Hong He
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 333-347
ISSN:: 1001-0742
Subject:: X-ray absorption spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; aluminum oxide; catalysts; catalytic activity; combustion; methane; palladium; particle size; steam; thermal stability; transmission electron microscopy; China
Abstract:: ... Pd/Al₂O₃ catalysts supported on Al₂O₃ of different particle sizes were synthesized and applied in methane combustion. These catalysts were systematically characterized by Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), high resolution-transmission electron microscopy (HR-TEM), high-angle annular dark field-scanning transmission electron microscopy (HAADF-STEM), H₂-temperature-programmed red ...
DOI:: 10.1016/j.jes.2022.04.030
: https://doi.org/10.1016/j.jes.2022.04.030

15. New microbial electrosynthesis system for methane production from carbon dioxide coupled with oxidation of sulfide to sulfate

Author:: Hiromi Kambara; Ha T.T. Dinh; Shuji Matsushita; Yoshiteru Aoi; Tomonori Kindaichi; Noriatsu Ozaki; Akiyoshi Ohashi
Source:: Journal of environmental sciences (China) 2023 v.125 pp. 786-797
ISSN:: 1001-0742
Subject:: Archaea; acetates; acetogens; bioanodes; biocathodes; biomass; carbon dioxide; catalysts; cost effectiveness; electric potential difference; electrosynthesis; greenhouse gases; methane; methane production; microbial communities; oxidation; sulfates; thermodynamics; China
Abstract:: ... Microbial electrosynthesis system (MES) is a promising method that can use carbon dioxide, which is a greenhouse gas, to produce methane which acts as an energy source, without using organic substances. However, this bioelectrical reduction reaction can proceed at a certain high applied voltage when coupled with water oxidation in the anode coated with metallic catalyst. When coupled with the oxid ...
DOI:: 10.1016/j.jes.2022.02.029
: https://doi.org/10.1016/j.jes.2022.02.029

16. One-step preparation of MoOx/ZnS/ZnO composite and its excellent performance in piezocatalytic degradation of Rhodamine B under ultrasonic vibration

Author:: Song Zheng; Xiaojing Li; Jiayu Zhang; Junfeng Wang; Chunran Zhao; Xin Hu; Ying Wu; Yiming He
Source:: Journal of environmental sciences (China) 2023 v.125 pp. 1-13
ISSN:: 1001-0742
Subject:: X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; catalysts; catalytic activity; dielectric spectroscopy; pH; rhodamines; surface area; transmission electron microscopy; ultrasonics; vibration; China
Abstract:: ... This paper synthesized a new type of ternary piezoelectric catalyst MoOₓ/ZnS/ZnO (MZZ) by a one-step method. The catalytic degradation of Rhodamine B (RhB) solution (10 μg/g, pH = 7.0) shows that the composite catalyst has excellent piezoelectric catalytic activity under ultrasonic vibration (40 kHz). The piezoelectric degradation rate of the optimal sample reached 0.054 min⁻¹, which was about 2.5 ...
DOI:: 10.1016/j.jes.2021.10.028
: https://doi.org/10.1016/j.jes.2021.10.028

17. One-step preparation of a novel graphitic biochar/Cu0/Fe3O4 composite using CO2-ambiance pyrolysis to activate peroxydisulfate for dye degradation

Author:: Yangfan Yuan; Changai Zhang; Chenhao Zhao; Bing Wang; Xiaozhi Wang; Bin Gao; Shengsen Wang; Jörg Rinklebe
Source:: Journal of environmental sciences (China) 2023 v.125 pp. 26-36
ISSN:: 1001-0742
Subject:: biochar; biomass; carbon dioxide; catalysts; catalytic activity; dyes; electric impedance; electron paramagnetic resonance spectroscopy; electron transfer; hydroxyl radicals; magnetism; pyrolysis; rhodamines; singlet oxygen; sulfates; surface area; China
Abstract:: ... Herein, a one-step co-pyrolysis protocol was adopted for the first time to prepare a novel pyrogenic carbon-Cu⁰/Fe₃O₄ heteroatoms (FCBC) in CO₂ ambiance to discern the roles of each component in PDS activation. During co-pyrolysis, CO₂ catalyzed formation of reducing gases by biomass which facilitated reductive transformation of Fe³⁺ and Cu²⁺ to Cu⁰ and Fe₃O₄, respectively. According to the analys ...
DOI:: 10.1016/j.jes.2021.10.030
: https://doi.org/10.1016/j.jes.2021.10.030

18. Orange G degradation by heterogeneous peroxymonosulfate activation based on magnetic MnFe2O4/α-MnO2 hybrid

Author:: Le Thi Thao; To Van Nguyen; Van Quy Nguyen; Ngoc Man Phan; Ki Jae Kim; Nguyen Nhat Huy; Nguyen Trung Dung
Source:: Journal of environmental sciences (China) 2023 v.124 pp. 379-396
ISSN:: 1001-0742
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; azo dyes; catalysts; electron paramagnetic resonance spectroscopy; energy-dispersive X-ray analysis; hot water treatment; hybrids; magnetism; mass spectrometry; pH; pollution; reaction mechanisms; temperature; thermogravimetry; wastewater; China
Abstract:: ... Wastewater containing an azo dye Orange G (OG) causes massive environmental pollution, thus it is critical to develop a highly effective, environmental-friendly, and reusable catalyst in peroxymonosulfate (PMS) activation for OG degradation. In this work, we successfully applied a magnetic MnFe₂O₄/α-MnO₂ hybrid fabricated by a simple hydrothermal method for OG removal in water. The characteristics ...
DOI:: 10.1016/j.jes.2021.10.008
: https://doi.org/10.1016/j.jes.2021.10.008

19. Promotional catalytic activity and reaction mechanism of Ag-modified Ce0.6Zr0.4O2 catalyst for catalytic oxidation of ammonia

Author:: Xiaolong Tang; Yuanyuan Zhang; Yaru Lei; Yuanyuan Liu; Honghong Yi; Fengyu Gao
Source:: Journal of environmental sciences (China) 2023 v.124 pp. 491-504
ISSN:: 1001-0742
Subject:: X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; ammonia; catalysts; catalytic activity; dehydrogenation; desorption; oxidation; oxygen; reaction mechanisms; reflectance; spectrometers; surface area; temperature; China
Abstract:: ... Ce₁₋ₓZrₓO₂ composite oxides (molar, x = 0-1.0, interval of 0.2) were prepared by a cetyltrimethylammonium bromide-assisted precipitation method. The enhancement of silver-species modification and catalytic mechanism of adsorption-transformation-desorption process were investigated over the Ag-impregnated catalysts for low-temperature selective catalytic oxidation of ammonia (NH₃-SCO). The optimal ...
DOI:: 10.1016/j.jes.2021.11.027
: https://doi.org/10.1016/j.jes.2021.11.027

20. δ-MnO2 decorated layered double oxides in-situ grown on nickel foam towards electrothermal catalysis of n-heptane

Author:: Chaoqi Chen; Shunzheng Zhao; Xiaolong Tang; Honghong Yi; Fengyu Gao; Qingjun Yu; Jun Liu; Weixiao Wang; Tian Tang; Xianzheng Meng
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 308-320
ISSN:: 1001-0742
Subject:: catalysts; catalytic activity; energy conservation; foams; heat; heptane; nickel; oxygen; surface area; temperature; China
Abstract:: ... Energy-saving and efficient monolithic catalysts are hotspots of catalytic purification of industrial gaseous pollutants. Here, we have developed an electrothermal catalytic mode, in which the ignition temperature required for the reaction is provided by Joule heat generated when the current flows through the catalyst. In this paper, Mn/NiAl/NF, Mn/NiFe/NF and Mn/NF metal-based monolithic catalyst ...
DOI:: 10.1016/j.jes.2022.03.017
: https://doi.org/10.1016/j.jes.2022.03.017

21. 1 T-MoSe2 monolayer supported single Pd atom as a highly-efficient bifunctional catalyst for ORR/OER

Author:: Zengming Qin; Jingxiang Zhao
Source:: Journal of colloid and interface science 2022 v.605 pp. 155-162
ISSN:: 0021-9797
Subject:: catalysts; catalytic activity; electrochemistry; nanosheets; oxygen production
Abstract:: ... The development of highly-efficient catalysts for oxygen reduction reaction (ORR) or oxygen evolution reaction (OER) is highly crucial for the commercial applications of some novel energy-related devices. Herein, using comprehensive first-principles computations, the potential of a variety of single metal-based catalysts supported by MoSe₂ nanosheet to boost the ORR or OER process was evaluated. T ...
DOI:: 10.1016/j.jcis.2021.07.087
: https://doi.org/10.1016/j.jcis.2021.07.087

22. 12-Tungstophosphoric acid anchored to MCM-22, as a novel sustainable catalyst for the synthesis of potential biodiesel blend, levulinate ester

Author:: Dhruvi Pithadia; Anjali Patel; Vijay Hatiya
Source:: Renewable energy 2022 v.187 pp. 933-943
ISSN:: 0960-1481
Subject:: biodiesel; carbon; catalysts; catalytic activity; esterification; levulinic acid
Abstract:: ... The present article demonstrates a synthesis of a green, novel and sustainable heterogeneous catalyst comprising 12-tungstophosphoric acid and zeolitic support- MCM-22. Detailed characterization of the catalyst was carried out using various physicochemical techniques and its catalytic activity was explored for the production of butyl levulinate, a potential fuel blend candidate. The comparison wit ...
DOI:: 10.1016/j.renene.2022.01.106
: https://doi.org/10.1016/j.renene.2022.01.106

23. 1D diesel engine cycle modeling integrated with MOPSO optimization for improved NOx control and pressure boost

Author:: Hadi Taghavifar; Farhad Mazari
Source:: Energy 2022 v.247 pp. 123517
ISSN:: 0360-5442
Subject:: air; air temperature; algorithms; catalysts; chemical species; diesel engines; diesel fuel; energy; heat exchangers; prediction; torque
Abstract:: ... In current investigation, one dimensional gas dynamic and chemical species prediction are simulated according to diesel engine with air cooler and catalyst. The results of engine cycle modeling are then verified with experimental data and the robust validation is obtained. The key parameters of air/fuel ratio, compression ratio, swirl number, coolant temperature, and air temperature of the heat ex ...
DOI:: 10.1016/j.energy.2022.123517
: https://doi.org/10.1016/j.energy.2022.123517

24. 2-Hydroxyethylammonium Bisulfate (2-HEAS) as a Brønsted Acidic Ionic Liquid Catalyst for Esterification

Author:: Mohammadjavad Shahbazi; Akram Tavakoli; Mehdi Hosseini; Mitra Khanian
Source:: Industrial & engineering chemistry process design and development 2022 v.61 no.23 pp. 7874-7880
ISSN:: 1520-5045
Subject:: acetic acid; butanol; catalysts; catalytic activity; esterification; ethanol; ethyl acetate; ionic liquids; methanol; process design; sulfates; temperature
Abstract:: ... Brønsted acidic ionic liquids (BAILs) with great variety as effective catalysts for the synthesis of valuable chemicals such as esters have attracted particular attention. In this work, an ionic acid 2-hydroxyethylammonium bisulfate (2-HEAS) was successfully synthesized and used to catalyze esterification reactions. The powerful FTIR and NMR techniques were used to determine the ionic liquid prope ...
DOI:: 10.1021/acs.iecr.2c01362
: https://doi.org/10.1021/acs.iecr.2c01362

25. 2D CeO₂ and a Partially Phosphated 2D Ni-Based Metal–Organic Framework Formed an S-Scheme Heterojunction for Efficient Photocatalytic Hydrogen Evolution

Author:: Haiming Gong; Youji Li; Hongying Li; Zhiliang Jin
Source:: Langmuir 2022 v.38 no.6 pp. 2117-2131
ISSN:: 1520-5827
Subject:: absorption; catalysts; coordination polymers; density functional theory; hydrogen production; nickel oxide; oxidation; photocatalysis
Abstract:: ... Here, an S-scheme heterojunction was constructed on the basis of the modification of a Ni-based metal–organic framework (Ni-MOF) by different in situ treatment strategies. First, NiS₂, NiO, and Ni₂P were derived in situ on the surface of Ni-MOF through surface sulfonation, oxidation, and phosphatizing treatments. They can efficiently accept the electrons from the conduction band of Ni-MOF as the t ...
DOI:: 10.1021/acs.langmuir.1c03198
: https://doi.org/10.1021/acs.langmuir.1c03198

26. 3-D porous cellulose nanofibril aerogels with a controllable copper nanoparticle loading as a highly efficient non-noble-metal catalyst for 4-nitrophenol reduction

Author:: Suryun Oh; Hayoung Yu; Yosep Han; Hyeon Su Jeong; Hye-Jin Hong
Source:: Chemosphere 2022 v.301 pp. 134518
ISSN:: 0045-6535
Subject:: activation energy; aerogels; aminophenols; catalysts; cellulose; copper nanoparticles; imines; nanofibers; p-nitrophenol; polyethylene; toxicity; wastewater; wastewater treatment
Abstract:: ... Nitrophenols(NPs) are highly toxic compounds that occur in various industrial effluents. Herein, we investigated Cu nanoparticle-loaded cellulose nanofibril (CNF/PEI-Cu) aerogels as a catalyst for degrading 4-nitrophenol (4NP) in the wastewater. Non-noble metal based low-cost catalyst material and easily scalable preparation method make CNF/PEI-Cu aerogel as an appropriate catalyst for practical a ...
DOI:: 10.1016/j.chemosphere.2022.134518
: https://doi.org/10.1016/j.chemosphere.2022.134518

27. 3D N-doped graphene/bismuth composite as an efficient catalyst for reduction of 4-nitrophenol

Author:: Xiaowen Liu; Yuanyuan Liu; Xin Zhang; Xiaodan Miao
Source:: Colloids and surfaces 2022 v.636 pp. 128098
ISSN:: 0927-7757
Subject:: aerogels; aminophenols; bismuth; catalysts; catalytic activity; free radicals; graphene; microstructure; p-nitrophenol; pollutants; porosity; surface area
Abstract:: ... In recent years, the development of low-cost and reusable green catalysts to reduce the organic pollutant of 4-nitrophenol (4-NP) into the utilizable intermediate of 4-aminophenol (4-AP) had attracted more and more attention. Herein, we reported a facile strategy to synthesize 3D N-doped graphene/bismuth (NGR/Bi) composites with efficient catalytic properties for 4-NP reduction. TGA exhibited NGR/ ...
DOI:: 10.1016/j.colsurfa.2021.128098
: https://doi.org/10.1016/j.colsurfa.2021.128098

28. 3D holey hierarchical nanoflowers assembled by cobalt phosphide embedded N-doped carbon nanosheets as bifunctional electrocatalyst for highly efficient overall water splitting

Author:: Lihua Zhi; Jibing Tu; Jiaxuan Li; Min Li; Jiacheng Liu
Source:: Journal of colloid and interface science 2022 v.616 pp. 379-388
ISSN:: 0021-9797
Subject:: anodes; carbon; catalysts; cathodes; cobalt; coordination polymers; cost effectiveness; durability; electric potential difference; electrolytes; nanoflowers; nanosheets; phosphides; porous media; synergism
Abstract:: ... With the increasing energy and environmental crisis, exploring convenient and general strategies for constructing of highly active, stable, and cost-effective bifunctional electrocatalysts for overall water splitting are exceedingly desirable yet still challenging. Herein, 3D hierarchical mesoporous cobalt phosphide embedded N-doped carbon nanoflowers (CoP@NCNFs) are successfully constructed with ...
DOI:: 10.1016/j.jcis.2022.02.066
: https://doi.org/10.1016/j.jcis.2022.02.066

29. 3D printing of recombinant Escherichia coli/Au nanocomposites as agitating paddles towards robust catalytic reduction of 4-nitrophenol

Author:: Lu Long; Rui Pei; Ya Liu; Xiaoping Rao; Yuanpeng Wang; Shu-feng Zhou; Guowu Zhan
Source:: Journal of hazardous materials 2022 v.423 pp. 126983
ISSN:: 0304-3894
Subject:: Escherichia coli; catalysts; catalytic activity; crosslinking; gelatin; heat; mass transfer; metallothionein; nanocomposites; nanogold; p-nitrophenol; sodium alginate; strength (mechanics)
Abstract:: ... Three-dimensional (3D) printing technology has received remarkable attention in manufacturing catalysts with tailored shapes and high precision, particularly facilitating catalyst recovery, maximizing heat/mass transfer, as well as enhancing catalytic performance. Herein, an engineered recombinant Escherichia coli strain (denoted as e-E. coli) with overexpressing metallothionein (a metal-binding p ...
DOI:: 10.1016/j.jhazmat.2021.126983
: https://doi.org/10.1016/j.jhazmat.2021.126983

30. 3D-Printed Regular-Porous Structure with Trapezoidal Multiple Microchannels as Combustion Reaction Support for the Autothermal Methanol Steam Reforming Microreactor for Hydrogen Production

Author:: Tianqing Zheng; Wei Zhou; Yuchen Zhong; Yifan Yang; Minghui Hong; Zheng Shen
Source:: Industrial & engineering chemistry process design and development 2022 v.61 no.6 pp. 2443-2454
ISSN:: 1520-5045
Subject:: carbon; catalysts; combustion; foams; fuel cells; hydrogen; hydrogen production; mathematical models; methanol; nickel; process design; reaction mechanisms; steam; temperature
Abstract:: ... To decrease the temperature difference per unit temperature (ΔTA) of an autothermal methanol steam reforming (ATMSR) microreactor for hydrogen production (HP) and enhance its long-term HP performance for supplying long-term stable hydrogen source for fuel cell vehicles, a three-dimensional (3D)-printed regular-porous structure with multiple microchannels is developed as combustion reaction support ...
DOI:: 10.1021/acs.iecr.1c04448
: https://doi.org/10.1021/acs.iecr.1c04448

31. 3D-printed structured catalysts for CO2 methanation reaction: Advancing of gyroid-based geometries

Author:: Miriam González-Castaño; Francisco Baena-Moreno; Juan Carlos Navarro de Miguel; Kamal U.M. Miah; Fátima Arroyo-Torralvo; Ralf Ossenbrink; Jose Antonio Odriozola; Walther Benzinger; Andreas Hensel; Achim Wenka; Harvey Arellano-García
Source:: Energy conversion and management 2022 v.258 pp. 115464
ISSN:: 0196-8904
Subject:: administrative management; carbon dioxide; catalysts; catalytic activity; energy conversion; experimental design; geometry; heat transfer; hydrogen; mathematical models; methane production; temperature
Abstract:: ... This work investigates the CO₂ methanation rate of structured catalysts by tuning the geometry of 3D-printed metal Fluid Guiding Elements (FGEs) structures based on periodically variable pseudo-gyroid geometries. The enhanced performance showed by the structured catalytic systems is mostly associated with the capability of the FGEs substrate geometries for efficient heat usages. Thus, variations o ...
DOI:: 10.1016/j.enconman.2022.115464
: https://doi.org/10.1016/j.enconman.2022.115464

32. 4,4′-Dimethoxybenzhydryl substituent augments performance of bis(imino)pyridine cobalt-based catalysts in ethylene polymerization

Author:: Shi-Fang Yuan; Luyao Wang; Yi Yan; Tian Liu; Zygmunt Flisak; Yanping Ma; Wen-Hua Sun
Source:: RSC advances 2022 v.12 no.25 pp. 15741-15750
ISSN:: 2046-2069
Subject:: X-ray diffraction; catalysts; cobalt; ethylene; geometry; imines; molecular weight; nitrogen; polyethylene; polymerization; pyridines
Abstract:: ... A series of cobalt complexes with bis(imino)pyridine derivatives featuring unsymmetrical substitution with bulky groups has been synthesized and characterized. The molecular structures of two representatives have been determined by the single-crystal X-ray diffraction study, revealing distorted tetrahedral geometry with different degrees of steric hindrance imparted by the two inequivalent aryl gr ...
DOI:: 10.1039/d2ra01547a
: https://doi.org/10.1039/d2ra01547a

33. 5-Sulfosalicylic acid as an acid hydrotrope for the rapid and green fractionation of woody biomass

Author:: Qiaolong Zhai; Shuangmei Han; Chung-Yun Hse; Jianchun Jiang; Junming Xu
Source:: Industrial crops and products 2022 v.177 pp. 114435
ISSN:: 0926-6690
Subject:: Populus; aqueous solutions; catalysts; cellulose; density functional theory; enzymatic hydrolysis; fractionation; glucose; hemicellulose; hydrogen bonding; lignin; saccharification; solvents; woody biomass
Abstract:: ... This study reported that 5-sulfosalicylic acid (5-SSA), a solid acid with hydrotropic properties, could efficiently and rapidly fractionate poplar biomass in an aqueous solution at mild conditions. The experimental results showed that 5-SSA-treatment could deconstruct the biomass recalcitrant intercellular structure and has excellent potential in lignin and hemicellulose dissolution and glucose re ...
DOI:: 10.1016/j.indcrop.2021.114435
: https://doi.org/10.1016/j.indcrop.2021.114435

34. 9-Cyano-10-methoxycarbonylanthracene as a Visible Organic Photoredox Catalyst in the Two-Molecule Photoredox System

Author:: Yuka Tajimi; Yasuhiro Nachi; Ryoko Inada; Ryoga Hashimoto; Mugen Yamawaki; Kei Ohkubo; Toshio Morita; Yasuharu Yoshimi
Source:: Journal of organic chemistry 2022 v.87 no.11 pp. 7405-7413
ISSN:: 1520-6904
Subject:: biphenyl; catalysts; organic chemistry; oxidation; phenanthrenes; solubility
Abstract:: ... Visible-light-induced decarboxylative and deboronative reactions using two-molecule organic photoredox catalysts, namely, phenanthrene (Phen) and biphenyl (BP), as electron donors and 9-cyano-10-methoxycarbonylanthracene 1a as an electron acceptor were achieved. The high solubility of 1a significantly improved the reaction efficiency and product yield. In addition, the facile tuning of the oxidati ...
DOI:: 10.1021/acs.joc.2c00643
: https://doi.org/10.1021/acs.joc.2c00643

35. A 3D FeOOH nanotube array: an efficient catalyst for ammonia electrosynthesis by nitrite reduction

Author:: Qin Liu; Qian Liu; Lisi Xie; Luchao Yue; Tingshuai Li; Yongsong Luo; Na Li; Bo Tang; Lingmin Yu; Xuping Sun
Source:: Chemical communications 2022 v.58 no.33 pp. 5160-5163
ISSN:: 1364-548X
Subject:: ambient temperature; ammonia; carbon; catalysts; durability; electrolysis; electron transfer; electrosynthesis; groundwater; nanotubes; nitrites; pH; pollutants; public health; surface area
Abstract:: ... Nitrite (NO₂⁻) is a detrimental pollutant widely existing in groundwater sources, threatening public health. Electrocatalytic NO₂⁻ reduction settles the demand for removal of NO₂⁻ and is also promising for generating ammonia (NH₃) at room temperature. A nanotube array directly grown on a current collector not only has a large surface area, but also exhibits improved structural stability and accele ...
DOI:: 10.1039/d2cc00611a
: https://doi.org/10.1039/d2cc00611a

36. A 3D hierarchical network derived from 2D Fe-doped NiSe nanosheets/carbon nanotubes with enhanced OER performance for overall water splitting

Author:: Kai Chang; Duy Thanh Tran; Jingqiang Wang; Nam Hoon Kim; Joong Hee Lee
Source:: Journal of materials chemistry A 2022 v.10 no.6 pp. 3102-3111
ISSN:: 2050-7496
Subject:: carbon; carbon nanotubes; catalysts; durability; electric potential difference; electrical conductivity; electrodes; electrolytes; hydrogen; nanosheets; nickel; oxygen production; selenides
Abstract:: ... Designing an earth-abundant electrode material with high activity and durability is a major challenge for water splitting to produce clean and green hydrogen energy. In this study, we report a novel high-performance electrocatalyst derived from a unique three-dimensional hierarchical network of two-dimensional iron-doped nickel selenide nanosheets (2D Fe-doped NiSe NSs) and high-quality carbon nan ...
DOI:: 10.1039/d1ta07393a
: https://doi.org/10.1039/d1ta07393a

37. A Bifunctional Multishell Catalyst with a Wide Operating Temperature Window for NOₓ Abatement by Ammonia-Selective Catalytic Reduction

Author:: Lei Song; Guoqiang Shu; Kui Ma; Changjun Liu; Siyang Tang; Shan Zhong; Hairong Yue; Bin Liang
Source:: Industrial & engineering chemistry process design and development 2022 v.61 no.16 pp. 5410-5418
ISSN:: 1520-5045
Subject:: X-ray diffraction; X-ray photoelectron spectroscopy; catalysts; flue gas; oxidation; process design; temperature; transmission electron microscopy
Abstract:: ... The narrow operating temperature range of an ammonia-selective catalytic reduction (NH₃–SCR) catalyst due to the side reaction of NH₃ oxidation is a big challenge for these catalysts to adapt to the fluctuation of flue gas temperature. In this work, a multishell bifunctional V₂O₅/MnCo₂O₄ catalyst for NOₓ abatement by an NH₃–SCR reaction was designed by the self-assembly solvothermal and impregnati ...
DOI:: 10.1021/acs.iecr.1c04544
: https://doi.org/10.1021/acs.iecr.1c04544

38. A Biodegradable High-Efficiency Magnetic Nanoliposome Promotes Tumor Microenvironment-Responsive Multimodal Tumor Therapy Along with Switchable T₂ Magnetic Resonance Imaging

Author:: Qingdong Li; Wenjuan Gao; Caiyun Zhang; Peng Wang; Xin Wang; Miao Yan; Wenguo Jiang; Zhengyan Wu; Pengfei Wei; Geng Tian; Guilong Zhang
Source:: ACS applied materials & interfaces 2022 v.14 no.21 pp. 24160-24173
ISSN:: 1944-8252
Subject:: biodegradability; catalysts; catalytic activity; cysteine; drug therapy; drugs; ferroptosis; ligases; magnetism; neoplasms; precision medicine; reactive oxygen species
Abstract:: ... We explored the catalytic activity and magnetic resonance imaging (MRI) capacity of Cu-doped ultrasmall iron oxides with different doping ratios. Then, we screened a highly efficient ultrasmall active catalyst (UAC). Subsequently, a biodegradable magnetic nanoliposome was developed for multimodal cancer theranostics through pH-sensitive liposome coating of these UACs. Upon entering the body, the m ...
DOI:: 10.1021/acsami.2c04158
: https://doi.org/10.1021/acsami.2c04158

39. A Bioinspired Iron-Centered Electrocatalyst for Selective Catalytic Reduction of Nitrate to Ammonia

Author:: Wu-Ji Sun; Lan-Xin Li; Hao-Yu Zhang; Jing-Hui He; Jian-Mei Lu
Source:: ACS sustainable chemistry & engineering 2022 v.10 no.18 pp. 5958-5965
ISSN:: 2168-0485
Subject:: adsorption; ammonia; atomic force microscopy; catalysts; density functional theory; electric field; electrochemistry; explosives; green chemistry; mass spectrometry; nitrate reductase; nitrates; solubility
Abstract:: ... Nitrate has been commonly used in fertilizers, synthetic materials, and explosives; however, its irregular release leads to extensive contaminants in many sources of drinking water because of its high solubility and mobility. Unfortunately, efficient nitrate removal at low concentrations has been challenging for a long time. Inspired by nitrate reductase with iron as the active center in plants, w ...
DOI:: 10.1021/acssuschemeng.2c00389
: https://doi.org/10.1021/acssuschemeng.2c00389

40. A Chiral Iron Disulfonate Catalyst for the Enantioselective Synthesis of 2-Amino-2′-hydroxy-1,1′-binaphthyls (NOBINs)

Author:: Alina Dyadyuk; Vlada Vershinin; Hadas Shalit; Hen Shalev; Nagnath Yadav More; Doron Pappo
Source:: Journal of the American Chemical Society 2022 v.144 no.8 pp. 3676-3684
ISSN:: 1520-5126
Subject:: catalysts; catalytic activity; cross-coupling reactions; enantioselective synthesis; enantioselectivity; oxidants
Abstract:: ... A novel type of chiral redox disulfonate iron complex for asymmetric catalysis is reported. The [Fe((Rₐ)-BINSate)]⁺ (BINSate = 1,1′-binaphthalene-2,2′-disulfonate) complex effectively promotes the enantioselective oxidative cross-coupling between 2-naphthols (1) and 2-aminonaphthalene derivatives (2), affording optically enriched (Rₐ)-2-amino-2′-hydroxy-1,1′-binaphthyls (NOBINs) with exceptional y ...
DOI:: 10.1021/jacs.1c13020
: https://doi.org/10.1021/jacs.1c13020

41. A Combined Spectroscopic and Computational Study on the Mechanism of Iron-Catalyzed Aminofunctionalization of Olefins Using Hydroxylamine Derived N–O Reagent as the “Amino” Source and “Oxidant”

Author:: Sayanti Chatterjee; Ingolf Harden; Giovanni Bistoni; Rebeca G. Castillo; Sonia Chabbra; Maurice van Gastel; Alexander Schnegg; Eckhard Bill; James A. Birrell; Bill Morandi; Frank Neese; Serena DeBeer
Source:: Journal of the American Chemical Society 2022 v.144 no.6 pp. 2637-2656
ISSN:: 1520-5126
Subject:: X-radiation; absorption; catalysts; catalytic activity; electron paramagnetic resonance spectroscopy; homolytic cleavage; hydroxylamine; quantum mechanics; ultraviolet-visible spectroscopy
Abstract:: ... Herein, we study the mechanism of iron-catalyzed direct synthesis of unprotected aminoethers from olefins by a hydroxyl amine derived reagent using a wide range of analytical and spectroscopic techniques (Mössbauer, Electron Paramagnetic Resonance, Ultra-Violet Visible Spectroscopy, X-ray Absorption, Nuclear Resonance Vibrational Spectroscopy, and resonance Raman) along with high-level quantum ch ...
DOI:: 10.1021/jacs.1c11083
: https://doi.org/10.1021/jacs.1c11083

42. A Comprehensive Discovery Platform for Organophosphorus Ligands for Catalysis

Author:: Tobias Gensch; Gabriel dos Passos Gomes; Pascal Friederich; Ellyn Peters; Théophile Gaudin; Robert Pollice; Kjell Jorner; AkshatKumar Nigam; Michael Lindner-D’Addario; Matthew S. Sigman; Alán Aspuru-Guzik
Source:: Journal of the American Chemical Society 2022 v.144 no.3 pp. 1205-1217
ISSN:: 1520-5126
Subject:: catalysts; catalytic activity; humans; ligands; prediction
Abstract:: ... The design of molecular catalysts typically involves reconciling multiple conflicting property requirements, largely relying on human intuition and local structural searches. However, the vast number of potential catalysts requires pruning of the candidate space by efficient property prediction with quantitative structure–property relationships. Data-driven workflows embedded in a library of poten ...
DOI:: 10.1021/jacs.1c09718
: https://doi.org/10.1021/jacs.1c09718

43. A Degenerate Metal-Templated Catalytic System with Redundant Functional Groups for the Asymmetric Aldol Reaction

Author:: Alba Sors-Vendrell; Albert Ortiz; Diego Meneses; Ignacio Alfonso; Jordi Solà; Ciril Jimeno
Source:: Journal of organic chemistry 2022 v.87 no.11 pp. 7509-7513
ISSN:: 1520-6904
Subject:: catalysts; enamines; hydrogen bonding; ligands; organic chemistry; probability
Abstract:: ... A degenerate zinc-templated catalytic system containing two bipyridine ligands with redundant functional groups for either enamine or hydrogen bond formation was applied to the asymmetric aldol reaction. This concept led to both a higher probability of reaction and rate acceleration. Thus, the catalyst loading could be decreased to a remarkable 2 mol % in what we think is a general approach. ...
DOI:: 10.1021/acs.joc.2c00414
: https://doi.org/10.1021/acs.joc.2c00414

44. A FEN 1-assisted swing arm DNA walker for electrochemical detection of ctDNA by target recycling cascade amplification

Author:: Dongmei Wang; Huan Zhou; Yundong Shi; Wanjun Sun
Source:: Analytical methods 2022 v.14 no.19 pp. 1922-1927
ISSN:: 1759-9679
Subject:: DNA; biopsy; biosensors; blood serum; catalysts; catalytic activity; detection limit; electrochemistry; temperature
Abstract:: ... A flap endonuclease 1 (FEN 1)-assisted swing arm DNA walker was constructed to achieve the signal amplification detection of ctDNA. The MB-labeled hairpin DNA was designed as the track and a long swing-arm DNA strand as the capture probe. The introduction of ctDNA unlocked a helper hairpin DNA, which could be captured to form the DNA duplex walker with the capture probe, and also activated the cat ...
DOI:: 10.1039/d2ay00364c
: https://doi.org/10.1039/d2ay00364c

45. A Facile Synthesis of a Fusiform-Shaped Three-Dimensional Co/Mn@CNDs-MOF Nanocomposite as an Efficient Electrocatalyst for Oxygen Evolution Reaction in Alkaline Medium

Author:: Suresh Pavithra; Vinoth Kumar Jothi; Arulmozhi Rajaram; Sagar Ingavale; Abirami Natarajan
Source:: Energy & fuels 2022 v.36 no.12 pp. 6409-6419
ISSN:: 1520-5029
Subject:: carbon; catalysts; coordination polymers; electrochemistry; electrodes; electrolytes; energy; nanocomposites; oxygen production; particle size; ruthenium; surface area; transmission electron microscopy
Abstract:: ... A facile synthesis of a bimetallic metal–organic framework (MOF) codoped with carbon nanodots (CNDs) (Co/Mn@CNDs-MOF) via solvothermal treatment is reported. In this study, we prepared a composite material with nanofusiform-like structures as an efficient earth-abundant oxygen evolution reaction (OER) electrocatalyst, its morphology was confirmed by high-resolution transmission electron microscopy ...
DOI:: 10.1021/acs.energyfuels.2c00780
: https://doi.org/10.1021/acs.energyfuels.2c00780

46. A Germanium Catalyst Accelerates the Photoredox α-C(sp³)–H Alkylation of Primary Amines

Author:: Kentaro Sakai; Kounosuke Oisaki; Motomu Kanai
Source:: Organic letters 2022 v.24 no.18 pp. 3325-3330
ISSN:: 1523-7052
Subject:: alkylation; catalysts; catalytic activity; germanium; hydrogen; redox reactions
Abstract:: ... Site-selective C(sp³)–H functionalizations using photoredox catalysis (PC) and hydrogen atom transfer (HAT) catalysis have received increasing attention. Here, we report a Ph₂GeCl₂ cocatalyst that greatly improves the yield of α-C(sp³)–H alkylation of primary amines catalyzed by a PC-HAT hybrid system. The α-position of the amino group selectively reacted even when weaker C–H bonds existed in the ...
DOI:: 10.1021/acs.orglett.2c00871
: https://doi.org/10.1021/acs.orglett.2c00871

47. A Heterogeneous Iridium Catalyst for the Hydroboration of Pyridines

Author:: Jessica Rodriguez; Matthew P. Conley
Source:: Organic letters 2022 v.24 no.25 pp. 4680-4683
ISSN:: 1523-7052
Subject:: Lewis acids; catalysts; iridium; nuclear magnetic resonance spectroscopy; pyrazines; pyridines; zirconium oxide
Abstract:: ... Sulfated zirconium oxide (SZO) capped with silylium-like ions reacts with (cod)Ir(py)Cl (cod = 1,5-cyclooctadiene; py = pyridine) to form [Ir(cod)py][SZO] (1) and Me₃SiCl. 1 can also be formed in reactions of phosphonium functionalized SZO and [Ir(cod)(OSi(OᵗBu)₃]₂, which forms [Ir(cod)P(ᵗBu)₂Ph][SZO] (2), followed by reaction with pyridine to form 1. FTIR and ¹⁵N{¹H} MAS NMR spectroscopy are cons ...
DOI:: 10.1021/acs.orglett.2c01859
: https://doi.org/10.1021/acs.orglett.2c01859

48. A Heteroleptic Gold Hydride Nanocluster for Efficient and Selective Electrocatalytic Reduction of CO₂ to CO

Author:: Ze-Hua Gao; Kecheng Wei; Tao Wu; Jia Dong; De-en Jiang; Shouheng Sun; Lai-Sheng Wang
Source:: Journal of the American Chemical Society 2022 v.144 no.12 pp. 5258-5262
ISSN:: 1520-5126
Subject:: carbon dioxide; catalysts; catalytic activity; density functional theory; electrochemistry; ethane; gold; hydrides
Abstract:: ... It has been a long-standing challenge to create and identify the active sites of heterogeneous catalysts, because it is difficult to precisely control the interfacial chemistry at the molecular level. Here we report the synthesis and catalysis of a heteroleptic gold trihydride nanocluster, [Au₂₂H₃(dppe)₃(PPh₃)₈]³⁺ [dppe = 1,2-bis(diphenylphosphino)ethane, PPh₃ = triphenylphosphine]. The Au₂₂H₃ cor ...
DOI:: 10.1021/jacs.2c00725
: https://doi.org/10.1021/jacs.2c00725

49. A Highly Active In Situ Zn(CH₃COO)₂-NC Catalyst for the Acetoxylation of Acetylene

Author:: Zhuang Xu; Xunchao Zhang; Mengli Li; Xugen Wang; Mingyuan Zhu; Bin Dai
Source:: Industrial & engineering chemistry process design and development 2022 v.61 no.3 pp. 1313-1321
ISSN:: 1520-5045
Subject:: X-ray diffraction; X-ray photoelectron spectroscopy; acetic acid; acetylene; catalysts; computer software; process design; reaction mechanisms; thermogravimetry; transmission electron microscopy; zinc
Abstract:: ... A new catalyst, in situ Zn(CH₃COO)₂-NC, is prepared by a facile in situ generation method. With impregnation, drying, and high-temperature treatment, the precursor was obtained and then activated by acetic acid, generating Zn(OAc)₂-iNC catalyst in situ. According to X-ray diffraction, high-resolution transmission electron microscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy, an ...
DOI:: 10.1021/acs.iecr.1c04182
: https://doi.org/10.1021/acs.iecr.1c04182

50. A Mn single atom catalyst with Mn–N₂O₂ sites integrated into carbon nanosheets for efficient electrocatalytic CO₂ reduction

Author:: Wenfei Dong; Nan Zhang; Sanxiu Li; Shixiong Min; Juan Peng; Wanyi Liu; Dongping Zhan; Hongcun Bai
Source:: Journal of materials chemistry A 2022 v.10 no.20 pp. 10892-10901
ISSN:: 2050-7496
Subject:: Gibbs free energy; X-radiation; absorption; adsorption; carbon; carbon dioxide; catalysts; catalytic activity; chemical bonding; durability; electricity; electrolytes; nanosheets; synthesis
Abstract:: ... The electrocatalytic reduction of CO₂ using electricity produced from renewable resources is a strategy for achieving CO₂ emission reduction and sustainable energy development. Further, the reaction has a large number of industrial practical applications, since CO₂ can be converted to fuels via downstream chemical processing of the CO product. Herein, we successfully synthesized a low Mn-content s ...
DOI:: 10.1039/d2ta01285e
: https://doi.org/10.1039/d2ta01285e

51. A MnOₓ enhanced atomically dispersed iron–nitrogen–carbon catalyst for the oxygen reduction reaction

Author:: Shichao Ding; Zhaoyuan Lyu; Erik Sarnello; Mingjie Xu; Lingzhe Fang; Hangyu Tian; Sam Ellery Karcher; Tao Li; Xiaoqing Pan; John McCloy; Guodong Ding; Qiang Zhang; Qiurong Shi; Dan Du; Jin-Cheng Li; Xiao Zhang; Yuehe Lin
Source:: Journal of materials chemistry A 2022 v.10 no.11 pp. 5981-5989
ISSN:: 2050-7496
Subject:: byproducts; catalysts; catalytic activity; corrosion; cost effectiveness; durability; electrochemistry
Abstract:: ... Cost-effective and highly efficient Fe–N–C single-atom catalysts (SACs) have been considered to be one of the most promising potential Pt substitutes for the cathodic oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs). Nevertheless, they are subject to severe oxidative corrosion originating from the Fenton reaction, leading to poor long-time durability of PEMFCs. Herei ...
DOI:: 10.1039/d1ta07219f
: https://doi.org/10.1039/d1ta07219f

52. A New Organocatalytic Desymmetrization Reaction Enables the Enantioselective Total Synthesis of Madangamine E

Author:: Shinya Shiomi; Benjamin D. A. Shennan; Ken Yamazaki; Ángel L. Fuentes de Arriba; Dhananjayan Vasu; Trevor A. Hamlin; Darren J. Dixon
Source:: Journal of the American Chemical Society 2022 v.144 no.3 pp. 1407-1415
ISSN:: 1520-5126
Subject:: amino alcohols; carbon; catalysts; catalytic activity; chemical bonding; chemical reactions; density functional theory; enantioselectivity
Abstract:: ... The enantioselective total synthesis of madangamine E has been completed in 30 steps, enabled by a new catalytic and highly enantioselective desymmetrizing intramolecular Michael addition reaction of a prochiral ketone to a tethered β,β′-disubstituted nitroolefin. This key carbon–carbon bond forming reaction efficiently constructed a chiral bicyclic core in near-perfect enantio- and diastereo-sele ...
DOI:: 10.1021/jacs.1c12040
: https://doi.org/10.1021/jacs.1c12040

53. A NiFe/NiSe₂ heterojunction bifunctional catalyst rich in oxygen vacancies introduced using dielectric barrier discharge plasma for liquid and flexible all-solid-state rechargeable Zn–air batteries

Author:: Tingting Hu; Zhongqing Jiang; Zhuai Fu; Zhong-Jie Jiang
Source:: Journal of materials chemistry A 2022 v.10 no.16 pp. 8739-8750
ISSN:: 2050-7496
Subject:: atmospheric pressure; carbon nanotubes; catalysts; catalytic activity; electrochemistry; electrolytes; energy; liquids; nitrogen; oxygen
Abstract:: ... Herein, a nitrogen doped carbon nanotube supported NiFe/NiSe₂ heterostructure rich in oxygen vacancies (DBD-NiFe/NiSe₂@NCNT) is successfully synthesized using atmospheric pressure dielectric barrier discharge plasma. It exhibits superior bifunctional catalytic activity towards the OER (η = 292 mV@10 mA cm⁻²) and ORR (E₁/₂ = 0.811 V), with a ΔE as low as 0.711 V in 0.1 M KOH electrolyte, outperform ...
DOI:: 10.1039/d2ta00949h
: https://doi.org/10.1039/d2ta00949h

54. A Novel Bioremediation Technique for Petroleum Hydrocarbons by Bacterial Consortium Immobilized on Goethite-chitosan Nanocomposite

Author:: H.S. El-Sheshtawy; D. Aman; H. N. Nassar
Source:: Soil & sediment contamination 2022 v.31 no.2 pp. 176-199
ISSN:: 1549-7887
Subject:: Flavobacterium johnsoniae; Shewanella baltica; antibacterial properties; biodegradation; bioremediation; catalysts; gene banks; hot water treatment; nanocomposites; nucleotide sequences; oils; petroleum; polluted soils; sediment contamination; sequence analysis; toxicity; Egypt
Abstract:: ... Environmental pollution by petroleum hydrocarbon is one of the significant concerns of the contemporary world. This paper deals with the relevant environmental issues concerning the oil pollution of the petroleum industry. There is a need for further development of sustainable remediation technologies. Nineteen petroleum-degrading bacteria were isolated from an oil-polluted soil in the Suez oil pr ...
DOI:: 10.1080/15320383.2021.1916737
: https://doi.org/10.1080/15320383.2021.1916737

55. A Novel Electrochemical Immunosensor Based on COF-LZU1 as Precursor to Form Heteroatom-Doped Carbon Nanosphere for CA19-9 Detection

Author:: Ren Qiu; Jianmin Dai; Lingqiang Meng; Hongmin Gao; Mengdie Wu; Feifan Qi; Jing Feng; Hongzhi Pan
Source:: Applied biochemistry and biotechnology 2022 v.194 no.7 pp. 3044-3065
ISSN:: 0273-2289
Subject:: antigen detection; antigens; biochemistry; biotechnology; blood serum; carbon; catalysts; detection limit; electrochemistry; humans; immunosensors; nanospheres; porosity; pyrolysis; surface area
Abstract:: ... Porous carbon sphere materials have a large variety of applications in several fields due to the large surface area, adaptable porosity, and good conductivity they possess. Obtaining a steady carbon sphere using the green synthesis method remains a significant challenge. In this experiment, covalent organic frameworks (COFs) were used as a precursor and Fe₃O₄NPs were integrated into the precursor ...
DOI:: 10.1007/s12010-022-03861-4
: https://doi.org/10.1007/s12010-022-03861-4

56. A Novel Green Process for Synthesis of 3-Hydroxyalkanoate Methyl Ester Using Lipase and Novel mcl-co-lcl PHA as Catalyst and Substrate

Author:: Aophat Choonut; Poonsuk Prasertsan; Sappasith Klomklao; Kanokphorn Sangkharak
Source:: Journal of polymers and the environment 2022 v.30 no.4 pp. 1423-1434
ISSN:: 1566-2543
Subject:: Bacillus thermoamylovorans; biodiesel; carboxylic ester hydrolases; catalysts; catalytic activity; environment; methanol; polyhydroxyalkanoates; temperature; transesterification
Abstract:: ... A new type of medium-chain-length-co-long-chain-length polyhydroxyalkanoate (mcl-co-lcl PHA) containing 39.25 mol% 3-hydroxyhexadecanoic (3HHD) was isolated from Bacillus thermoamylovorans strain PHA005 and utilized as biofuel substrate. A novel process to produce 3-hydroxyalkanoate methyl ester (3HAME) using mcl-co-lcl PHA was transesterification via an enzyme-catalysis was used. The optimal cond ...
DOI:: 10.1007/s10924-021-02288-y
: https://doi.org/10.1007/s10924-021-02288-y

57. A Removable Acyl Group Promoted the Intramolecular Dehydro-Diels–Alder Reaction of Styrene-Ynes: Highly Chemoselective Synthesis of Aryldihydronaphthalene Derivatives

Author:: Xia Chen; Cheng Zhong; Xianxian Duan; Zhenhua Guan; Lianghu Gu; Zengwei Luo; Yong Chen; Yonghui Zhang
Source:: Journal of organic chemistry 2022 v.87 no.10 pp. 6601-6611
ISSN:: 1520-6904
Subject:: catalysts; chemoselectivity; journals; metals; organic chemistry
Abstract:: ... A removable acyl group promoted the intramolecular didehydro-Diels–Alder reaction of styrene-ynes under mild reaction conditions is proposed. The reaction is free of metals and catalysts, is easy to perform, and exhibits good functional group tolerance, providing a highly chemoselective approach for obtaining the valuable aryldihydronaphthalene derivatives. ...
DOI:: 10.1021/acs.joc.2c00180
: https://doi.org/10.1021/acs.joc.2c00180

58. A Simple Process for the Dimerization and Cross-Coupling of Isoprene and Myrcene to High-Performance Jet and Diesel Blendstocks

Author:: Josanne-Dee Woodroffe; Benjamin G. Harvey
Source:: Energy & fuels 2022 v.36 no.5 pp. 2630-2638
ISSN:: 1520-5029
Subject:: carbon footprint; catalysts; catalytic activity; combustion; cross-coupling reactions; dimerization; energy; feedstocks; heat; hydrogenation; isoprene; myrcene; transportation industry; viscosity
Abstract:: ... Three high-energy density fuels were generated in a one-pot reaction from the [4+4]-cyclodimerization and cross-coupling of isoprene and myrcene using a homogeneous iron pyridineimine (PDI) catalyst. The resulting mixture of C10, C15, and C20 regio- and chemoselectively synthesized cyclooctadienes was fractionally distilled to yield three fractions. The isolated cyclic hydrocarbons were then hydro ...
DOI:: 10.1021/acs.energyfuels.1c04271
: https://doi.org/10.1021/acs.energyfuels.1c04271

59. A Simplified Kinetic Model for the Enantioselective Hydrogenation of 1-Phenyl-1,2-Propanedione over Ir/TiO₂ in the Presence of a Chiral Additive

Author:: Ignacio Melián-Cabrera; Teresita Marzialetti; M. Fernanda Neira D’Angelo; Cristian H. Campos; Patricio Reyes
Source:: Industrial & engineering chemistry process design and development 2022 v.61 no.17 pp. 6052-6056
ISSN:: 1520-5045
Subject:: active sites; adsorption; ambient temperature; catalysts; catalytic activity; enantioselectivity; hydrogen; hydrogenation; kinetics; models; partial pressure; process design; regioselectivity; solvents
Abstract:: ... This communication proposes a preliminary simplified kinetic model for the hydrogenation of 1-phenyl-1,2-propanedione that can render up to eight compounds, involving regioselectivity and enantioselectivity. The catalytic system comprises two functionalities; the heterogeneous catalyst (Ir/TiO₂) plays the role for the hydrogenation, whereas the adsorption/binding to the active site is played by a ...
DOI:: 10.1021/acs.iecr.1c04375
: https://doi.org/10.1021/acs.iecr.1c04375

60. A Theoretical Study on the Borane-Catalyzed Reductive Amination of Aniline and Benzaldehyde with Dihydrogen: The Origins of Chemoselectivity

Author:: Jiyang Zhao; Shaoxian Liu; Shanshan Liu; Wenwen Ding; Sijia Liu; Yao Chen; Pan Du
Source:: Journal of organic chemistry 2022 v.87 no.2 pp. 1194-1207
ISSN:: 1520-6904
Subject:: Lewis acids; amination; aniline; benzaldehyde; boranes; boron; catalysts; chemoselectivity; density functional theory; hydrogenation; imines; organic chemistry
Abstract:: ... Density functional theory calculations are used in this study to investigate the product selectivity and mechanism of borane-catalyzed reductive aldehyde amination by a H₂ reducing agent. Knowing that different boranes yield different products, two typical boranes, (B(2,6-Cl₂C₆H₃)(p-HC₆F₄)₂ and B(C₆F₅)₃), are studied. Of the seven possible pathways of B(2,6-Cl₂C₆H₃)(p-HC₆F₄)₂-catalyzed aldehyde am ...
DOI:: 10.1021/acs.joc.1c02491
: https://doi.org/10.1021/acs.joc.1c02491

61. A TiO₂₋ₓ nanobelt array with oxygen vacancies: an efficient electrocatalyst toward nitrite conversion to ammonia

Author:: Donglin Zhao; Jie Liang; Jun Li; Longcheng Zhang; Kai Dong; Luchao Yue; Yongsong Luo; Yuchun Ren; Qian Liu; Mohamed S. Hamdy; Quan Li; Qingquan Kong; Xuping Sun
Source:: Chemical communications 2022 v.58 no.22 pp. 3669-3672
ISSN:: 1364-548X
Subject:: ammonia; catalysts; catalytic activity; durability; nitrites; oxygen; titanium
Abstract:: ... Electrocatalytic nitrite reduction not only holds significant potential in the control of nitrite contamination in the natural environment, but also is an attractive approach for sustainable ammonia synthesis. In this communication, we report that a TiO₂₋ₓ nanobelt array with oxygen vacancies on a titanium plate is able to convert nitrite into ammonia with a high faradaic efficiency of 92.7% and a ...
DOI:: 10.1039/d2cc00856d
: https://doi.org/10.1039/d2cc00856d

62. A [(M₂)₆L₈] metal–organic polyhedron with high CO₂ uptake and efficient chemical conversion of CO₂ under ambient conditions

Author:: Li-Hua Liu; Lin Liu; Hao-Ran Chi; Chen-Ning Li; Zheng-Bo Han
Source:: Chemical communications 2022 v.58 no.44 pp. 6417-6420
ISSN:: 1364-548X
Subject:: carbon dioxide; catalysts; surface area
Abstract:: ... A new metal–organic polyhedron with a high surface area of 407 m² g⁻¹, possessing high CO₂ uptake, is reported, which is synthesized using 4-connected Cu₂(CO₂)₄ paddle-wheel moieties and 3-connected semi-rigid tripodal carboxylates. This material possesses a high density of Cu(ii) Lewis acidic sites and demonstrates excellent performance as a heterogeneous catalyst for the chemical fixation of CO₂ ...
DOI:: 10.1039/d2cc01734b
: https://doi.org/10.1039/d2cc01734b

63. A base-free copper-assisted synthesis of C₂-symmetric spirotelluranes and biaryls based on divergent stoichiometry of Na₂Te

Author:: Monojit Batabyal; Saket Jain; Aditya Upadhyay; Saravanan Raju; Sangit Kumar
Source:: Chemical communications 2022 v.58 no.50 pp. 7050-7053
ISSN:: 1364-548X
Subject:: benzamides; catalysts; stoichiometry; tellurium
Abstract:: ... A one pot Cu(i)-assisted synthetic methodology has been developed for the preparation of biologically important C₂-symmetric spirodiaza, benzyloxy and benzoxytelluranes from 2-bromo-N-aryl benzamides, benzyl alcohols, and benzoic acids by using the tellurium dianion (Te²⁻) under base-free conditions. Furthermore, C–C coupled biaryl 1,1′-diamides have been prepared by using an excess of Na₂Te under ...
DOI:: 10.1039/d2cc02181a
: https://doi.org/10.1039/d2cc02181a

64. A bifunctional catalyst based on a carbon quantum dots/mesoporous SrTiO₃ heterostructure for cascade photoelectrochemical nitrogen reduction

Author:: Yongming Hu; Zhi Liang Zhao; Rafia Ahmad; Moussab Harb; Luigi Cavallo; Luis Miguel Azofra; San Ping Jiang; Xinyi Zhang
Source:: Journal of materials chemistry A 2022 v.10 no.23 pp. 12713-12721
ISSN:: 2050-7496
Subject:: ammonia; catalysts; nitrogen; nitrogen fixation; photocatalysis; porous media
Abstract:: ... Despite considerable progress in the field of sustainable ammonia technology, the low efficiency and yield have remained the main bottleneck in artificial nitrogen fixation under ambient conditions. In this work, an ultrathin carbon quantum dot modified hydrogenated mesoporous SrTiO₃ heterostructure (CQDs/STO) has been developed as a bifunctional catalyst for enhanced nitrogen reduction. CQDs/STO ...
DOI:: 10.1039/d2ta02187k
: https://doi.org/10.1039/d2ta02187k

65. A boronization-induced amorphous–crystalline interface on a Prussian blue analogue for efficient and stable seawater splitting

Author:: Yikang Wang; Dongmei Jia; Wenyao Zhang; Gan Jia; Haijiao Xie; Wei Ye; Genping Zhu; Peng Gao
Source:: Chemical communications 2022 v.58 no.41 pp. 6132-6135
ISSN:: 1364-548X
Subject:: catalysts; chemical communication; design; seawater
Abstract:: ... A promising electrocatalyst with an amorphous–crystalline structure was designed through a NaBH₄ reduction strategy. Such a surface-defective heterophase structure remarkably prevents the catalyst from corroding by hindering the transport of Cl⁻, resulting in efficient and stable overall seawater splitting. ...
DOI:: 10.1039/d2cc00696k
: https://doi.org/10.1039/d2cc00696k

66. A catalyzed method to remove polychlorinated biphenyls from contaminated transformer oil

Author:: Arash Maghami; Nooshin Gholipour-Zanjani; Farhad Khorasheh; Mehdi Arjmand
Source:: Environmental science and pollution research 2022 v.29 no.9 pp. 13253-13267
ISSN:: 0944-1344
Subject:: activation energy; ambient pressure; carbon nanotubes; catalysts; catalytic activity; dechlorination; experimental design; half life; hydrogen; kinetics; oils; palladium; pollution; polychlorinated biphenyls; research; soil; temperature; toxicity
Abstract:: ... The disposal of polychlorinated biphenyls (PCBs) as persistent organic pollutants from the environment has been normally performed by isolation from soil or water because of their biological activity and toxic potential. In the present investigation, catalytic hydrodehalogenation was used to detoxify PCBs-contaminated transformer oil. All reactions were directed on an oil containing 11.09 wt% of P ...
DOI:: 10.1007/s11356-021-16613-4
: https://doi.org/10.1007/s11356-021-16613-4

67. A cobalt covalent organic framework: a dual-functional atomic-level catalyst for visible-light-driven C–H annulation of amides with alkynes

Author:: Jingwen Jia; Xiubin Bu; Xiaobo Yang
Source:: Journal of materials chemistry A 2022 v.10 no.21 pp. 11514-11523
ISSN:: 2050-7496
Subject:: alkynes; amides; carbon-hydrogen bond activation; catalysts; catalytic activity; chelation; cobalt; energy; light; redox reactions; regioselectivity
Abstract:: ... The merger of transition-metal catalysis and photoredox catalysis enables a balance between elegant chemical transformation and the rational use of light energy. Previously, it was always accomplished with the two types of homogeneous catalysts: transition-metal catalysts and photoredox catalysts. Herein, we report a synthesis of a dual-functional cobalt covalent organic framework (CoCOF-SYNU-1) f ...
DOI:: 10.1039/d2ta01325h
: https://doi.org/10.1039/d2ta01325h

68. A comparison of Structure–Activity of Cu-Modified Over Different Mesoporous Silica Supports for Catalytic Conversion of Levulinic Acid

Author:: Balla Putrakumar; Prem Kumar Seelam; Ginjupalli Srinivasarao; Karthikeyan Rajan; Mitta Harishekar; Keiski Riitta; Tong Xiang Liang
Source:: Waste and biomass valorization 2022 v.13 no.1 pp. 67-79
ISSN:: 1877-2641
Subject:: acidity; biomass; catalysts; copper; durability; hydrogenation; levulinic acid; porous media; silica; streams; wastes
Abstract:: ... Catalytic hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) was investigated over four different types of mesoporous silica (SBA-15, MCM-48, MCM-41, and KIT-6) supported copper (5 wt.%) catalysts. The Cu was incorporated into mesoporous silica supports by a sequential impregnation method. A detailed investigation of the support structure–activity correlation and the performance of the ...
DOI:: 10.1007/s12649-021-01485-z
: https://doi.org/10.1007/s12649-021-01485-z

69. A component-level model of polymer electrolyte membrane electrolysis cells for hydrogen production

Author:: Daniela Fernanda Ruiz Diaz; Edgar Valenzuela; Yun Wang
Source:: Applied energy 2022 v.321 pp. 119398
ISSN:: 0306-2619
Subject:: anodes; catalysts; cathodes; electric potential difference; electrochemistry; electrolysis; electrolytes; environmental impact; flow resistance; hydrogen production; liquids; mass transfer; models; oxygen; polymers; reaction kinetics; water supply; wind power
Abstract:: ... Proton Exchange Membrane Electrolysis Cells (PEMEC) are a promising technology for high-purity hydrogen production with a low impact on the environment. This paper developed a component-level PEMEC model, which considers the water exchange between the anode and cathode, two-phase transport in the porous transport layer (PTL), flow resistance at the PTL/Channel interface, gas coverage at the cataly ...
DOI:: 10.1016/j.apenergy.2022.119398
: https://doi.org/10.1016/j.apenergy.2022.119398

70. A comprehensive review on persulfate activation treatment of wastewater

Author:: Baowei Wang; Yu Wang
Source:: Science of the total environment 2022 v.831 pp. 154906
ISSN:: 0048-9697
Subject:: catalysts; electrochemistry; electromagnetic radiation; environment; environmental protection; human health; hydrodynamics; oxidation; pollution; sulfates; ultrasonics; wastewater; wastewater treatment
Abstract:: ... With increasingly serious environmental pollution and the production of various wastewater, water pollutants have posed a serious threat to human health and the ecological environment. The advanced oxidation process (AOP), represented by the persulfate (PS) oxidation process, has attracted increasing attention because of its economic, practical, safety and stability characteristics, opening up new ...
DOI:: 10.1016/j.scitotenv.2022.154906
: https://doi.org/10.1016/j.scitotenv.2022.154906

71. A comprehensive review on sustainability-motivated applications of SAPO-34 molecular sieve

Author:: Sajjad Rimaz; Mohammadreza Kosari; Mehrdad Zarinejad; Seeram Ramakrishna
Source:: Journal of materials science 2022 v.57 no.2 pp. 848-886
ISSN:: 0022-2461
Subject:: adsorbents; carbon dioxide; catalysts; catalytic activity; hydrogen; methane; methanol; particle size; polymers; temperature
Abstract:: ... Silicoaluminophosphate-34 (SAPO-34) is a molecular sieve with a unique shape structure and pore framework, favorable acidic properties, and excellent stability under different operating conditions. These unique properties have made SAPO-34 an important material with widespread applications as a catalyst, membrane, and adsorbent in different processes. As a catalyst, SAPO-34 is utilized in converti ...
DOI:: 10.1007/s10853-021-06643-1
: https://doi.org/10.1007/s10853-021-06643-1

72. A critical review on plasma-catalytic removal of VOCs: Catalyst development, process parameters and synergetic reaction mechanism

Author:: Tian Chang; Yu Wang; Yaqi Wang; Zuotong Zhao; Zhenxing Shen; Yu Huang; Savita K.P. Veerapandian; Nathalie De Geyter; Chuanyi Wang; Qingcai Chen; Rino Morent
Source:: Science of the total environment 2022 v.828 pp. 154290
ISSN:: 0048-9697
Subject:: catalysts; catalytic activity; energy efficiency; environment; human health; reaction mechanisms; volatile organic compounds
Abstract:: ... It is urgent to control the emission of volatile organic compounds (VOCs) due to their harmful effects on the environment and human health. A hybrid system integrating non-thermal-plasma and catalysis is regarded as one of the most promising technologies for VOCs removal due to their high VOCs removal efficiency, product selectivity and energy efficiency. This review systematically documents the m ...
DOI:: 10.1016/j.scitotenv.2022.154290
: https://doi.org/10.1016/j.scitotenv.2022.154290

73. A facile one-pot room-temperature growth of self-supported ultrathin rhodium-iridium nanosheets as high-efficiency electrocatalysts for hydrogen evolution reaction

Author:: Meng-Ting Chen; Ru-Lan Zhang; Jiu-Ju Feng; Li-Ping Mei; Yang Jiao; Lu Zhang; Ai-Jun Wang
Source:: Journal of colloid and interface science 2022 v.606 pp. 1707-1714
ISSN:: 0021-9797
Subject:: ambient temperature; catalysts; energy conversion; foams; hydrogen production; nanosheets; nickel; transmission electron microscopy
Abstract:: ... The development of low-cost and high-efficiency electrocatalysts is very important for electrocatalytic hydrogen evolution reaction (HER) in water splitting system. Herein, ultrathin rhodium-iridium nanosheets were facilely in-situ grown on nickel foam (RhIr NSs/NF) by a one-pot aqueous strategy at room temperature. The sheet-like structures with the film thickness of 78 nm were identified by scan ...
DOI:: 10.1016/j.jcis.2021.08.144
: https://doi.org/10.1016/j.jcis.2021.08.144

74. A facile synthesis of amphiphilic N-glycosyl naphthalimides and fabrication of flexible semiconductors using molecular self-assembly

Author:: Arun Kumar Rachamalla; Vara Prasad Rebaka; Tohira Banoo; Ravinder Pawar; Mohmmad Faizan; Krishnamoorthy Lalitha; Subbiah Nagarajan
Source:: Green chemistry 2022 v.24 no.6 pp. 2451-2463
ISSN:: 1463-9270
Subject:: ammonium sulfate; catalysts; chemical structure; cotton fabric; electronics; films (materials); fluorescence; green chemistry; hydrogels; hydrogen; light microscopy; oleogels; semiconductors
Abstract:: ... Using natural processes as a guiding tool, the scientific community is actively involved in achieving substantial advances at the interface of supramolecular chemistry and materials design. In this paper, we have synthesized a series of amphiphilic N-glycosyl naphthalimides using environmentally benign protocols in good yields. For the first time, an exclusive formation of β-anomeric product using ...
DOI:: 10.1039/d1gc04509a
: https://doi.org/10.1039/d1gc04509a

75. A fast and efficient method for the efficient recovery of crude oil from spent hydrodesulphurization catalyst

Author:: Jing Gao; Meng Hao; Tao Wu; Yujiang Li
Source:: Colloids and surfaces 2022 v.642 pp. 128650
ISSN:: 0927-7757
Subject:: acetone; carbon; catalysts; chemical structure; combustion; contact angle; energy; gas chromatography-mass spectrometry; heat; hexane; methylene chloride; oils; particle size; petroleum; rheometers; solvents; temperature; viscosity; xylene
Abstract:: ... The deoiling process is a critical issue in catalyst regeneration and recovery of precious metals from spent catalysts. This study developed a fast and efficient method to recover crude oil from spent hydrodesulphurization (HDS) catalysts. We employed four solvents (p-xylene, acetone, dichloromethane, and n-hexane) with different polar and aromatic properties to remove crude oil from the spent cat ...
DOI:: 10.1016/j.colsurfa.2022.128650
: https://doi.org/10.1016/j.colsurfa.2022.128650

76. A first-principles investigation of nitrogen reduction to ammonia on zirconium nitride and oxynitride surfaces

Author:: Amitava Banerjee; Bianca M. Ceballos; Cortney Kreller; Rangachary Mukundan; Ghanshyam Pilania
Source:: Journal of materials science 2022 v.57 no.22 pp. 10213-10224
ISSN:: 0022-2461
Subject:: ambient pressure; ammonia; catalysts; catalytic activity; decentralization; density functional theory; desorption; electrochemistry; energy efficiency; feedstocks; nitrides; nitrogen; oxygen; zirconium
Abstract:: ... Sustainable and energy-efficient ammonia production is of direct interest for a range of applications including production of inorganic fertilizers, energy storage and chemical feedstock. Going beyond the Haber Bosch process, a decentralization of catalytic ammonia production requires new and improved electrocatalysts that can produce ammonia at relatively low temperatures and ambient pressure. In ...
DOI:: 10.1007/s10853-022-07311-8
: https://doi.org/10.1007/s10853-022-07311-8

77. A functionalized porous carbon from super absorbent polymer serving as the support of NiMo hydrodesulfurization catalyst

Author:: Xiaohang Yu; Yanzeng Dong; Haining Jia; Xin Li; Zhiheng Wang; Yanyan Liu; Ruiyao Gao; Songdong Yao
Source:: Journal of materials science 2022 v.57 no.6 pp. 4180-4196
ISSN:: 0022-2461
Subject:: acidification; carbon; catalysts; liquids; nitric acid; permeability; super absorbent polymers; temperature; vapors
Abstract:: ... Multilayered, spatially ordered and highly permeable three-dimensional cross-network porous carbons were prepared from waste superabsorbent polymer (SAP) and were used as supports for NiMo hydrodesulfurization (HDS) catalysts. The acidified SAP-based carbon support and the corresponding catalyst were characterized by FT-IR, XRD, N₂ adsorption–desorption, NH₃-TPD, TG, SEM, TEM, XPS and H₂-TPR. The ...
DOI:: 10.1007/s10853-022-06866-w
: https://doi.org/10.1007/s10853-022-06866-w

78. A green approach for template free synthesis of Beta zeolite incorporated in ZSM-5 zeolite to enhance catalytic activity in MTG reaction: Effect of seed nature and temperature

Author:: Faezeh Mirshafiee; Reza Khoshbin; Ramin Karimzadeh
Source:: Journal of cleaner production 2022 v.361 pp. 132159
ISSN:: 0959-6526
Subject:: X-ray diffraction; acidity; adsorption; ammonia; aromatic compounds; atmospheric pressure; catalysts; catalytic activity; crystal structure; desorption; gasoline; gels; hot water treatment; husk ash; porous media; temperature; zeolites
Abstract:: ... A new composite zeolite, ZSM-5/Beta, was developed by incorporating Beta zeolite into the synthesis gel of ZSM-5 zeolite. Beta and ZSM-5 zeolite have been prepared from rice husk ash without using an organic template. First, the effect of synthesis temperature and seeding agent on structural properties of Beta zeolite was investigated. Then, prepared Beta zeolite was added to the ZSM-5 structure w ...
DOI:: 10.1016/j.jclepro.2022.132159
: https://doi.org/10.1016/j.jclepro.2022.132159

79. A guide to direct mechanocatalysis

Author:: Suhmi Hwang; Sven Grätz; Lars Borchardt
Source:: Chemical communications 2022 v.58 no.11 pp. 1661-1671
ISSN:: 1364-548X
Subject:: additives; catalysts; catalytic activity; chemical communication; forces; mechanochemistry; methodology; milling
Abstract:: ... Direct mechanocatalysis (DM) describes solvent-free catalytic reactions that are initiated by mechanical forces in mechanochemical reactors such as ball mills. The distinctive feature of DM is that the milling materials, e.g. the milling balls themselves are the catalyst of the reaction. In this article we follow the historical evolution of this novel concept and give a guide to this emerging, pow ...
DOI:: 10.1039/d1cc05697b
: https://doi.org/10.1039/d1cc05697b

80. A heterogeneous peroxymonosulfate catalyst built by Fe-based metal-organic framework for the dye degradation

Author:: Malihe Moazeni; Seyed Mehran Hashemian; Mika Sillanpää; Afshin Ebrahimi; Ki-Hyun Kim
Source:: Journal of environmental management 2022 v.303 pp. 113897
ISSN:: 0301-4797
Subject:: Fourier transform infrared spectroscopy; catalysts; coordination polymers; dyes; ethanol; fuzzy logic; human health; nanocrystals; oxidation; remediation; response surface methodology; sulfates
Abstract:: ... The regulatory control on dyes is an important issue, as their discharge into the environment can pose significant risks to human health. MIL-101(Fe) prepared by a solvothermal method was used as a catalyst to generate sulfate (SO₄•⁻) and hydroxyl (HO•) radicals from peroxymonosulfate (PMS) for the treatment of orange G (OG). The structural properties of MIL-101(Fe) were assessed by a number of ch ...
DOI:: 10.1016/j.jenvman.2021.113897
: https://doi.org/10.1016/j.jenvman.2021.113897

81. A hierarchically ordered porous Fe, N, S tri-doped carbon electrocatalyst with densely accessible Fe-Nx active sites and uniform sulfur-doping for efficient oxygen reduction reaction

Author:: Hao Han; Xiaomei Wang; Xu Zhang
Source:: Journal of colloid and interface science 2022 v.615 pp. 617-626
ISSN:: 0021-9797
Subject:: batteries; carbon; catalysts; cathodes; electrochemistry; methanol; porous media; pyrolysis; vapors
Abstract:: ... Doping FeNC catalysts with heteroatoms has been widely recognized as a most promising way to improve the electrocatalytic activity to achieve the replacement of Pt-based electrocatalysts for efficient oxygen reduction reaction (ORR). However, it is still a challenge to combine delicate control of the catalyst structure with heteroatom-doping to achieve optimal electrocatalytic efficiency. Herein, ...
DOI:: 10.1016/j.jcis.2022.02.030
: https://doi.org/10.1016/j.jcis.2022.02.030

82. A highly dispersed Ni3P/HZSM-5 catalyst for hydrodeoxygenation of phenolic compounds to cycloalkanes

Author:: Zhiquan Yu; Yao Wang; Guoqiang Zhang; Zhichao Sun; Ying-Ya Liu; Chuan Shi; Wei Wang; Anjie Wang
Source:: Journal of catalysis 2022 v.410 pp. 294-306
ISSN:: 0021-9517
Subject:: adsorption; aqueous solutions; catalysts; catalytic activity; guaiacol; heat treatment; hydrogenation; nickel; particle size; phenol
Abstract:: ... A highly dispersed Ni₃P/HZSM-5 catalyst was prepared by deposition-precipitation of Ni species followed by electroless plating and thermal treatment, and characterized by means of XRD, ICP, N₂ physical adsorption, TEM, XPS, NH₃-TPD, and CO chemisorption. Electroless plating reaction takes place in an aqueous solution under mild conditions, facilitating the high dispersion of the formed Ni₃P partic ...
DOI:: 10.1016/j.jcat.2022.04.024
: https://doi.org/10.1016/j.jcat.2022.04.024

83. A highly effective approach to enhance the performance of biomass-derived acid for fructose conversion to 5-hydroxymethylfurfural

Author:: Xiangbo Song; Yuhe Liao; Tingsen Liu; Dedu Yin; Haiyong Wang; Lungang Chen; Longlong Ma; Hongwei Yang; Leonid G. Voskressensky; Chenguang Wang
Source:: Fuel processing technology 2022 v.234 pp. 107318
ISSN:: 0378-3820
Subject:: acidity; biorefining; butanol; catalysts; dissociation; fructose; hydrogen; hydrogen bonding; oxalic acid; oxygen
Abstract:: ... Synthesis of 5-hydroxymethylfurfural (HMF) from carbohydrate is one of vital step for bio-refinery development. In this work, a novel strategy was developed for catalytic conversion of fructose to HMF in 2-butanol. The inexpensive ionic liquids were used to adjust the acidity of biobased acid catalyst for enhancing the dehydration of fructose to HMF. The combination of 1-butyl-3-methylimidazolium ...
DOI:: 10.1016/j.fuproc.2022.107318
: https://doi.org/10.1016/j.fuproc.2022.107318

84. A highly enantioselective approach towards optically active γ-amino alcohols by tin-catalyzed kinetic resolution of 1,3-amino alcohols

Author:: Jian Song; Wen-Hua Zheng
Source:: Chemical communications 2022 v.58 no.53 pp. 7392-7395
ISSN:: 1364-548X
Subject:: acylation; catalysts; enantioselectivity
Abstract:: ... A highly enantioselective kinetic resolution of racemic 1,3-amino alcohols via O-Acylation was achieved using a chiral organotin as the catalyst. Alkyl- and aryl-substituted 1,3-amino alcohols were resolved with excellent efficiencies to afford the recovered 1,3-amino alcohols and acylative products with high enantioselectivities, with s factors up to >600. Notably, the chiral organotin catalyst w ...
DOI:: 10.1039/d2cc01963a
: https://doi.org/10.1039/d2cc01963a

85. A jackpot C–H activation protocol using simple ruthenium catalyst in deep eutectic solvents

Author:: Nerea González-Gallardo; Beatriz Saavedra; Gabriela Guillena; Diego J. Ramón
Source:: Green chemistry 2022 v.24 no.12 pp. 4941-4951
ISSN:: 1463-9270
Subject:: air; alkynes; carbon-hydrogen bond activation; catalysts; green chemistry; heterocyclic compounds; oxidants; oxygen; ruthenium
Abstract:: ... Deep eutectic solvents (DESs) have been used for the first time as a sustainable medium in a ruthenium-catalyzed C–H activation reaction. This study describes an efficient, simple and straightfoward protocol for the direct C–H activation of a broad range of aromatic substrates and reaction with several olefins and alkynes, affording interesting heterocyclic systems as products. A simple, robust an ...
DOI:: 10.1039/d2gc01177h
: https://doi.org/10.1039/d2gc01177h

86. A low-cost and eco-friendly powder catalyst: Iron and copper nanoparticles supported on biochar/geopolymer for activating potassium peroxymonosulfate to degrade naphthalene in water and soil

Author:: Yifan Zhu; Shanguo Ji; Wenxu Liang; Changyu Li; Yongxin Nie; Jing Dong; Weijie Shi; Shiyun Ai
Source:: Chemosphere 2022 v.303 pp. 135185
ISSN:: 0045-6535
Subject:: bioassays; biochar; catalysts; catalytic activity; copper nanoparticles; cost effectiveness; crystal structure; kaolin; lignin; mung beans; naphthalene; potassium; seed germination; soil remediation; toxicity; wastewater
Abstract:: ... A low-cost and environment-friendly biochar/geopolymer composite loaded with Fe and Cu nanoparticles (Fe–Cu@BC-GM) was prepared by impregnation-calcination using lignin and kaolin as precursors. SEM, FTIR and XRD analysis suggested that the Fe–Cu@BC-GM had a certain pore structure, rich functional groups and stable crystal structure. The obtained Fe–Cu@BC-GM was used as the catalyst of potassium p ...
DOI:: 10.1016/j.chemosphere.2022.135185
: https://doi.org/10.1016/j.chemosphere.2022.135185

87. A machine-learning-based investigation on the mechanical/failure response and thermal conductivity of semiconducting BC2N monolayers

Author:: Bohayra Mortazavi; Ivan S. Novikov; Alexander V. Shapeev
Source:: Carbon 2022 v.188 pp. 431-441
ISSN:: 0008-6223
Subject:: artificial intelligence; boron; carbon; catalysts; density functional theory; heat transfer; nanosheets; nickel; nitrogen; semiconductors; stoichiometry; thermal conductivity; vision
Abstract:: ... Graphene-like lattices consisting of neighboring elements of boron, carbon and nitrogen are currently among the most attractive two-dimensional (2D) nanomaterials. Most recently, a novel graphene-like lattice with a BC₂N stoichiometry has been grown over nickel catalyst via molecular precursor. Inspired by this experimental advance and exciting physics of h-BₓCyNz lattices, herein extensive theore ...
DOI:: 10.1016/j.carbon.2021.12.039
: https://doi.org/10.1016/j.carbon.2021.12.039

88. A metallic Cu₂N monolayer with planar tetracoordinated nitrogen as a promising catalyst for CO₂ electroreduction

Author:: Jingjing Jia; Zhongxu Wang; Yu Liu; Fengyu Li; Yongchen Shang; Yuejie Liu; Qinghai Cai; Jingxiang Zhao
Source:: Journal of materials chemistry A 2022 v.10 no.3 pp. 1560-1568
ISSN:: 2050-7496
Subject:: algorithms; carbon dioxide; catalysts; catalytic activity; cost effectiveness; density functional theory; electrochemistry; energy; nitrogen
Abstract:: ... The electrochemical carbon dioxide reduction reaction (CO₂RR) holds great promise for mitigating CO₂ emission and simultaneously generating high energy fuel. However, it remains a great challenge to reduce CO₂ to C₂ products due to the lack of highly efficient catalysts. Herein, by means of a particle swarm optimization search and comprehensive density functional theory (DFT) computations, we pred ...
DOI:: 10.1039/d1ta09209j
: https://doi.org/10.1039/d1ta09209j

89. A minireview on catalysts for photocatalytic N₂ fixation to synthesize ammonia

Author:: Ping Qi; Xiaoxu Gao; Jian Wang; Huimin Liu; Dehua He; Qijian Zhang
Source:: RSC advances 2022 v.12 no.3 pp. 1244-1257
ISSN:: 2046-2069
Subject:: ammonia; catalysts; chemical industry; energy; energy conservation; feedstocks; industrialization; photocatalysis; solar energy; sustainable development
Abstract:: ... Ammonia (NH₃) is an important feedstock in chemical industry. Nowadays NH₃ is mainly produced via the industrialized Haber–Bosch process, which requires substantial energy input, since it operates at high temperatures (400–650 °C) and high pressures (20–40 Mpa). From the energy conservation point of view, it is of great significance to explore an alternative avenue to synthesize NH₃, which is in l ...
DOI:: 10.1039/d1ra08002d
: https://doi.org/10.1039/d1ra08002d

90. A minireview on the synthesis of single atom catalysts

Author:: Jiawen Guo; Huimin Liu; Dezheng Li; Jian Wang; Xavier Djitcheu; Dehua He; Qijian Zhang
Source:: RSC advances 2022 v.12 no.15 pp. 9373-9394
ISSN:: 2046-2069
Subject:: catalysts; catalytic activity; research
Abstract:: ... Single atom catalysis is a prosperous and rapidly growing research field, owing to the remarkable advantages of single atom catalysts (SACs), such as maximized atom utilization efficiency, tailorable catalytic activities as well as supremely high catalytic selectivity. Synthesis approaches play crucial roles in determining the properties and performance of SACs. Over the past few years, versatile ...
DOI:: 10.1039/d2ra00657j
: https://doi.org/10.1039/d2ra00657j

91. A modeling study of PEM fuel cells with novel catalyst monolayers under low platinum loading

Author:: Jingtian Wu; Huiyuan Liu; Yujiang Song; Yun Wang
Source:: Journal of materials chemistry A 2022 v.10 no.8 pp. 4076-4086
ISSN:: 2050-7496
Subject:: air; catalysts; cathodes; commercialization; diffusivity; electrochemistry; electrolytes; fuel cells; liquids; oxygen; photocatalysis; platinum; polymers; surface area; water distribution
Abstract:: ... Cost is a major barrier for commercialization of polymer electrolyte membrane (PEM) fuel cells. Catalyst layers (CLs) contribute to a major portion of the PEM fuel cell cost due to the use of platinum (Pt) group metal catalysts. To reduce Pt loading, a novel photo-driven method was recently proposed to fabricate CLs with low Pt loading through the photocatalytic nucleation and growth of dendritic ...
DOI:: 10.1039/d1ta10346f
: https://doi.org/10.1039/d1ta10346f

92. A modified flower pollen-based photothermocatalytic process for enhanced solar water disinfection: Photoelectric effect and bactericidal mechanisms

Author:: Dehua Xia; Qi Chen; Yimu Jiao; Qiyu Lian; Mingzhe Sun; Chun He; Jin Shang; Tianqi Wang
Source:: Water research 2022 v.217 pp. 118423
ISSN:: 0043-1354
Subject:: Escherichia coli K12; bacteria; catalysts; cell membranes; disinfection; enzyme activity; flowers; membrane permeability; photocatalysis; prototypes; remediation; synergism; water; water treatment
Abstract:: ... Solar disinfection (SODIS) is regarded as an affordable and effective point-of-use (POU) water disinfection treatment urgently needed in rural developing world. This work developed an enhanced SODIS scheme that utilized a novel flower pollen-based catalyst (Te-TRP). The bench-scale experiments demonstrated 100% photothermocatalytic inactivation of approximately 7-log E. coli K-12, Spingopyxis sp. ...
DOI:: 10.1016/j.watres.2022.118423
: https://doi.org/10.1016/j.watres.2022.118423

93. A molybdenum sulfo-oxide/cobalt oxysulfide Z-scheme heterojunction catalyst for efficient photocatalytic hydrogen production and pollutant reduction

Author:: Qinhan Wu; Adugna Boke Abdeta; Dong-Hau Kuo; Hanya Zhang; Qingxin Lu; Jubin Zhang; Osman Ahmed Zelekew; Mengistu Tadesse Mosisa; Jinguo Lin; Xiaoyun Chen
Source:: Journal of materials chemistry A 2022 v.10 no.10 pp. 5328-5349
ISSN:: 2050-7496
Subject:: catalysts; electrochemistry; energy; hydrogen production; molybdenum; oxygen; photocatalysis; sulfur
Abstract:: ... The existence of a heterojunction in the catalyst structure improves the efficiency of photocatalytic hydrogen production. The two phases of the heterojunction can be adjusted simultaneously by doping sulfur and oxygen to achieve a suitable energy band structure. Herein, we demonstrated a Mo(S,O)/Co(O,S) Z-scheme heterojunction catalyst system (abbreviated as MoCoOS) with different Co(O,S) doping ...
DOI:: 10.1039/d1ta09053d
: https://doi.org/10.1039/d1ta09053d

94. A multi-dimensional hierarchical strategy building melamine sponge-derived tetrapod carbon supported cobalt–nickel tellurides 0D/3D nanohybrids for boosting hydrogen evolution and triiodide reduction reaction

Author:: Yingying Deng; Sining Yun; Jiaoe Dang; Yongwei Zhang; Changwei Dang; Yinhao Wang; Zhuolei Liu; Zan Gao
Source:: Journal of colloid and interface science 2022 v.624 pp. 650-669
ISSN:: 0021-9797
Subject:: carbon; catalysts; electrochemistry; electrodes; energy conversion; hydrogen production; melamine; nanohybrids; nitrogen; solar energy; sulfur
Abstract:: ... Designing efficient nanohybrid electrocatalysts with advanced structure is of great essential for energy conversion devices. Herein, a multi-dimensional hierarchical strategy is proposed to design melamine sponge-derived sulfur and nitrogen co-doped tetrapod carbon (SNTC) supported cobalt–nickel telluride (CoTe₂/SNTC, NiTe₂/SNTC, and CoNiTe₂/SNTC) 1D/3D and 0D/3D nanohybrids for boosting hydrogen ...
DOI:: 10.1016/j.jcis.2022.05.147
: https://doi.org/10.1016/j.jcis.2022.05.147

95. A multi-tasking polypeptide from bloodworm jaws: Catalyst, template, and copolymer in film formation

Author:: William R. Wonderly; Tuan T.D. Nguyen; Katerina G. Malollari; Daniel DeMartini; Peyman Delparastan; Eric Valois; Phillip B. Messersmith; Matthew E. Helgeson; J. Herbert Waite
Source:: Matter 2022 v.5 no.6 pp. 1890-1908
ISSN:: 2590-2385
Subject:: catalysts; cohesion; composite polymers; copper; dihydroxyphenylalanine; melanin; oxidation; polymerization; polypeptides; recombinant proteins; separation
Abstract:: ... Bloodworm jaws are composites of protein, melanin, and both mineral and ionic copper. To date, nanomechanical tests have correlated the ionic copper and melanin with hardness and wear resistance, but the function of protein is uncertain. Here, we characterize a Gly- and His-rich protein called multi-tasking protein (MTP) and, using recombinant protein, show that it performs six distinct functions ...
DOI:: 10.1016/j.matt.2022.04.001
: https://doi.org/10.1016/j.matt.2022.04.001

96. A multifunctional cobalt iron sulfide electrocatalyst for high performance Zn–air batteries and overall water splitting

Author:: Mukesh Kumar; Tharamani C. Nagaiah
Source:: Journal of materials chemistry A 2022 v.10 no.9 pp. 4720-4730
ISSN:: 2050-7496
Subject:: air; anodes; carbon; catalysts; cathodes; cobalt; energy conversion; energy density; hydrogen production; nanorods; oxygen; sulfides
Abstract:: ... Developing a highly efficient, inexpensive, and robust catalyst with multifunctional activity is pivotal and central to regenerative greener metal–air batteries and fuel cells. However, it is still a big challenge to achieve the integration of three functions in a single catalyst. Herein, we report a facile, template-free and scalable strategy to synthesize nanorod embedded wheat-grain CoFe(3:1)S₂ ...
DOI:: 10.1039/d1ta10018a
: https://doi.org/10.1039/d1ta10018a

97. A new catalyst mixture for synthesis of 1,3,5‐trioxane

Author:: Chunxiao Ren; Jisheng Li; Jingjing Wang; Siqi Jiang; Xin Guo; Jianguang Qi; Congzhe Jiao; Yichuan Wang; Yufeng Hu; Zhichang Liu
Source:: Journal of chemical technology and biotechnology 2022 v.97 no.5 pp. 1275-1279
ISSN:: 0268-2575
Subject:: biotechnology; byproducts; catalysts; catalytic activity; corrosion; distillation; liquids; separation; volatilization
Abstract:: ... BACKGROUND: A new catalyst mixture, namely trifluoromethanesulfonic acid + N‐methylimidazolium trifluoromethanesulfonate (CF₃SO₃H + [mim][CF₃SO₃]), is developed to overcome long‐standing problems of commercial catalysts and catalytic distillation for 1,3,5‐trioxane synthesis. CF₃SO₃H serves as a catalyst to accelerate the main reaction and [mim][CF₃SO₃] serves as an extractive distillation agent t ...
DOI:: 10.1002/jctb.7022
: https://doi.org/10.1002/jctb.7022

98. A new cycloaddition profile for ortho-quinone methides: photoredox-catalyzed [6+4] cycloadditions for synthesis of benzo[b]cyclopenta[e]oxepines

Author:: Kenta Tanaka; Yosuke Asada; Yujiro Hoshino
Source:: Chemical communications 2022 v.58 no.15 pp. 2476-2479
ISSN:: 1364-548X
Subject:: catalysts; cycloaddition reactions; redox reactions
Abstract:: ... Visible-light-induced [6+4] cycloaddition reactions of ortho-quinone methides have been developed. The reaction of ortho-quinone methides with pentafulvenes in the presence of a thioxanthylium photoredox catalyst afforded benzo[b]cyclopenta[e]oxepines. The present reaction represents a promising tool for the synthesis of natural products and bioactive compounds that contain a benzoxepine structure ...
DOI:: 10.1039/d1cc06332d
: https://doi.org/10.1039/d1cc06332d

99. A new insight into the effects of agglomerate parameters on internal dynamics of proton exchange membrane fuel cell by an advanced impedance dimension model

Author:: Hao Yuan; Haifeng Dai; Pingwen Ming; Sida Li; Xuezhe Wei
Source:: Energy 2022 v.253 pp. 124202
ISSN:: 0360-5442
Subject:: carbon; catalysts; cathodes; dielectric spectroscopy; electrochemistry; energy; fuel cells; humidity; models; oxygen; quantitative analysis
Abstract:: ... The oxygen reduction reaction with a relatively slow reaction rate is critical for proton exchange membrane (PEM) fuel cell performance. At present, a substantial part of the previous numerical study respecting the optimization design of the cathode catalyst layer (CCL) mainly focuses on the polarization curve output and oxygen local transport. In this paper, for the first time, a two-dimensional ...
DOI:: 10.1016/j.energy.2022.124202
: https://doi.org/10.1016/j.energy.2022.124202

100. A new preparation method of graphite cones from polycyclic aromatic hydrocarbons/polyimide composite carbon fibers

Author:: Yuhong Liu; Xueping Liu; Zhaokun Ma; Yan He; Xingwei Zhang
Source:: Carbon 2022 v.196 pp. 128-135
ISSN:: 0008-6223
Subject:: catalysts; graphene; temperature
Abstract:: ... Graphite cone and whisker are a kind of non-planar graphite crystal material with a large length-diameter ratio, exhibiting extremely high mechanical and conductive properties. Although they have been discovered and studied for many years, their formation mechanism is still unclear. They have not been prepared and applied on a large scale because the preparation methods involve some extremely hars ...
DOI:: 10.1016/j.carbon.2022.04.069
: https://doi.org/10.1016/j.carbon.2022.04.069

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1. Activation of sulfite by metal-organic framework-derived cobalt nanoparticles for organic pollutants removal

2. Advanced oxidative degradation of sulfamethoxazole by using bowl-like FeCuS@Cu2S@Fe0 catalyst to efficiently activate peroxymonosulfate

3. Component regulation in novel La-Co-O-C composite catalyst for boosted redox reactions and enhanced thermal stability in methane combustion

4. Effect of Cu loading content on the catalytic performance of Cu-USY catalysts for selective catalytic reduction of NO with NH3

5. Effect of catalyzed diesel particulate filter and its catalyst loading on emission characteristics of a non-road diesel engine

6. Efficient degradation of atrazine through in-situ anchoring NiCo2O4 nanosheets on biochar to activate sulfite under neutral condition

7. Electrochemical removal of ammonium nitrogen in high efficiency and N2 selectivity using non-noble single-atomic iron catalyst

8. Graphitized Cu-β-cyclodextrin polymer driving an efficient dual-reaction-center Fenton-like process by utilizing electrons of pollutants for water purification

9. Heterojunctioned CuO/Cu2O catalyst for highly efficient ozone removal

10. Insight into phase structure-dependent soot oxidation activity of K/MnO2 catalyst

11. Low-temperature VOCs oxidation performance of Pt/zeolites catalysts with hierarchical pore structure

12. Mesoporous molecular sieve-based materials for catalytic oxidation of VOC: A review

13. N/Ce doped graphene supported Pt nanoparticles for the catalytic oxidation of formaldehyde at room temperature

14. Nano-sized alumina supported palladium catalysts for methane combustion with excellent thermal stability

15. New microbial electrosynthesis system for methane production from carbon dioxide coupled with oxidation of sulfide to sulfate

16. One-step preparation of MoOx/ZnS/ZnO composite and its excellent performance in piezocatalytic degradation of Rhodamine B under ultrasonic vibration

17. One-step preparation of a novel graphitic biochar/Cu0/Fe3O4 composite using CO2-ambiance pyrolysis to activate peroxydisulfate for dye degradation

18. Orange G degradation by heterogeneous peroxymonosulfate activation based on magnetic MnFe2O4/α-MnO2 hybrid

19. Promotional catalytic activity and reaction mechanism of Ag-modified Ce0.6Zr0.4O2 catalyst for catalytic oxidation of ammonia

20. δ-MnO2 decorated layered double oxides in-situ grown on nickel foam towards electrothermal catalysis of n-heptane

21. 1 T-MoSe2 monolayer supported single Pd atom as a highly-efficient bifunctional catalyst for ORR/OER

22. 12-Tungstophosphoric acid anchored to MCM-22, as a novel sustainable catalyst for the synthesis of potential biodiesel blend, levulinate ester

23. 1D diesel engine cycle modeling integrated with MOPSO optimization for improved NOx control and pressure boost

24. 2-Hydroxyethylammonium Bisulfate (2-HEAS) as a Brønsted Acidic Ionic Liquid Catalyst for Esterification

25. 2D CeO₂ and a Partially Phosphated 2D Ni-Based Metal–Organic Framework Formed an S-Scheme Heterojunction for Efficient Photocatalytic Hydrogen Evolution

26. 3-D porous cellulose nanofibril aerogels with a controllable copper nanoparticle loading as a highly efficient non-noble-metal catalyst for 4-nitrophenol reduction

27. 3D N-doped graphene/bismuth composite as an efficient catalyst for reduction of 4-nitrophenol

28. 3D holey hierarchical nanoflowers assembled by cobalt phosphide embedded N-doped carbon nanosheets as bifunctional electrocatalyst for highly efficient overall water splitting

29. 3D printing of recombinant Escherichia coli/Au nanocomposites as agitating paddles towards robust catalytic reduction of 4-nitrophenol

30. 3D-Printed Regular-Porous Structure with Trapezoidal Multiple Microchannels as Combustion Reaction Support for the Autothermal Methanol Steam Reforming Microreactor for Hydrogen Production

31. 3D-printed structured catalysts for CO2 methanation reaction: Advancing of gyroid-based geometries

32. 4,4′-Dimethoxybenzhydryl substituent augments performance of bis(imino)pyridine cobalt-based catalysts in ethylene polymerization

33. 5-Sulfosalicylic acid as an acid hydrotrope for the rapid and green fractionation of woody biomass

34. 9-Cyano-10-methoxycarbonylanthracene as a Visible Organic Photoredox Catalyst in the Two-Molecule Photoredox System

35. A 3D FeOOH nanotube array: an efficient catalyst for ammonia electrosynthesis by nitrite reduction

36. A 3D hierarchical network derived from 2D Fe-doped NiSe nanosheets/carbon nanotubes with enhanced OER performance for overall water splitting

37. A Bifunctional Multishell Catalyst with a Wide Operating Temperature Window for NOₓ Abatement by Ammonia-Selective Catalytic Reduction

38. A Biodegradable High-Efficiency Magnetic Nanoliposome Promotes Tumor Microenvironment-Responsive Multimodal Tumor Therapy Along with Switchable T₂ Magnetic Resonance Imaging

39. A Bioinspired Iron-Centered Electrocatalyst for Selective Catalytic Reduction of Nitrate to Ammonia

40. A Chiral Iron Disulfonate Catalyst for the Enantioselective Synthesis of 2-Amino-2′-hydroxy-1,1′-binaphthyls (NOBINs)

41. A Combined Spectroscopic and Computational Study on the Mechanism of Iron-Catalyzed Aminofunctionalization of Olefins Using Hydroxylamine Derived N–O Reagent as the “Amino” Source and “Oxidant”

42. A Comprehensive Discovery Platform for Organophosphorus Ligands for Catalysis

43. A Degenerate Metal-Templated Catalytic System with Redundant Functional Groups for the Asymmetric Aldol Reaction

44. A FEN 1-assisted swing arm DNA walker for electrochemical detection of ctDNA by target recycling cascade amplification

45. A Facile Synthesis of a Fusiform-Shaped Three-Dimensional Co/Mn@CNDs-MOF Nanocomposite as an Efficient Electrocatalyst for Oxygen Evolution Reaction in Alkaline Medium

46. A Germanium Catalyst Accelerates the Photoredox α-C(sp³)–H Alkylation of Primary Amines

47. A Heterogeneous Iridium Catalyst for the Hydroboration of Pyridines

48. A Heteroleptic Gold Hydride Nanocluster for Efficient and Selective Electrocatalytic Reduction of CO₂ to CO

49. A Highly Active In Situ Zn(CH₃COO)₂-NC Catalyst for the Acetoxylation of Acetylene

50. A Mn single atom catalyst with Mn–N₂O₂ sites integrated into carbon nanosheets for efficient electrocatalytic CO₂ reduction

51. A MnOₓ enhanced atomically dispersed iron–nitrogen–carbon catalyst for the oxygen reduction reaction

52. A New Organocatalytic Desymmetrization Reaction Enables the Enantioselective Total Synthesis of Madangamine E

53. A NiFe/NiSe₂ heterojunction bifunctional catalyst rich in oxygen vacancies introduced using dielectric barrier discharge plasma for liquid and flexible all-solid-state rechargeable Zn–air batteries

54. A Novel Bioremediation Technique for Petroleum Hydrocarbons by Bacterial Consortium Immobilized on Goethite-chitosan Nanocomposite

55. A Novel Electrochemical Immunosensor Based on COF-LZU1 as Precursor to Form Heteroatom-Doped Carbon Nanosphere for CA19-9 Detection

56. A Novel Green Process for Synthesis of 3-Hydroxyalkanoate Methyl Ester Using Lipase and Novel mcl-co-lcl PHA as Catalyst and Substrate

57. A Removable Acyl Group Promoted the Intramolecular Dehydro-Diels–Alder Reaction of Styrene-Ynes: Highly Chemoselective Synthesis of Aryldihydronaphthalene Derivatives

58. A Simple Process for the Dimerization and Cross-Coupling of Isoprene and Myrcene to High-Performance Jet and Diesel Blendstocks

59. A Simplified Kinetic Model for the Enantioselective Hydrogenation of 1-Phenyl-1,2-Propanedione over Ir/TiO₂ in the Presence of a Chiral Additive

60. A Theoretical Study on the Borane-Catalyzed Reductive Amination of Aniline and Benzaldehyde with Dihydrogen: The Origins of Chemoselectivity

61. A TiO₂₋ₓ nanobelt array with oxygen vacancies: an efficient electrocatalyst toward nitrite conversion to ammonia

62. A [(M₂)₆L₈] metal–organic polyhedron with high CO₂ uptake and efficient chemical conversion of CO₂ under ambient conditions

63. A base-free copper-assisted synthesis of C₂-symmetric spirotelluranes and biaryls based on divergent stoichiometry of Na₂Te

64. A bifunctional catalyst based on a carbon quantum dots/mesoporous SrTiO₃ heterostructure for cascade photoelectrochemical nitrogen reduction

65. A boronization-induced amorphous–crystalline interface on a Prussian blue analogue for efficient and stable seawater splitting

66. A catalyzed method to remove polychlorinated biphenyls from contaminated transformer oil

67. A cobalt covalent organic framework: a dual-functional atomic-level catalyst for visible-light-driven C–H annulation of amides with alkynes

68. A comparison of Structure–Activity of Cu-Modified Over Different Mesoporous Silica Supports for Catalytic Conversion of Levulinic Acid

69. A component-level model of polymer electrolyte membrane electrolysis cells for hydrogen production

70. A comprehensive review on persulfate activation treatment of wastewater