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You searched for: Journal name ACS sustainable chemistry & engineering Remove constraint Journal name: ACS sustainable chemistry & engineering Subject term catalysts Remove constraint Subject term: catalysts
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1. 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

2. Activation of Cellulose with Alkaline Earth Metals

Author:
Gregory G. Facas; Vineet Maliekkal; Matthew Neurock; Paul J. Dauenhauer
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.5 pp. 1943-1950
ISSN:
2168-0485
Subject:
biofuels; calcium; catalysts; cellulose; density functional theory; green chemistry; hydrogen; lignocellulose; magnesium; pyrolysis
Abstract:
... Alkaline-earth-metal ions accelerate the breaking of cellulose bonds and control the distribution of products in the pyrolysis of lignocellulose to biofuels and chemicals. Here, the activation of cellulose via magnesium ions was measured over a range of temperatures from 370 to 430 °C for 20–2000 ms and compared with the activation of cellulose via calcium, another naturally occurring alkaline ear ...
DOI:
10.1021/acssuschemeng.1c07947

3. Ammonolytic Hydrogenation of Secondary Amides: An Efficient Method for the Recycling of Long-Chain Polyamides

Author:
Robin Coeck; Anthony De Bruyne; Thomas Borremans; Wouter Stuyck; Dirk E. De Vos
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.9 pp. 3048-3056
ISSN:
2168-0485
Subject:
amides; catalysts; depolymerization; green chemistry; hydrogenation; methyl ethers; solvents; temperature
Abstract:
... Long-chain polyamides (LCPAs) are depolymerized by ammonolysis of the secondary amide bonds into building blocks for new polymer synthesis. Research on the ammonolysis of PA is quite limited and often proposes harsh reaction conditions with homogeneous catalysts. Here, we describe a heterogeneous catalytic system based on Nb₂O₅. Reactions were performed at a relatively low temperature of 200 °C in ...
DOI:
10.1021/acssuschemeng.1c08538

4. Anion Fluorine-Doped La₀.₆Sr₀.₄Fe₀.₈Ni₀.₂O₃₋δ Perovskite Cathodes with Enhanced Electrocatalytic Activity for Solid Oxide Electrolysis Cell Direct CO₂ Electrolysis

Author:
Caichen Yang; Yunfeng Tian; Jian Pu; Bo Chi
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.2 pp. 1047-1058
ISSN:
2168-0485
Subject:
adsorption; carbon dioxide; carbonates; catalysts; cathodes; durability; electrolysis; energy conversion; fluorine; green chemistry; oxygen; renewable energy sources
Abstract:
... As a promising and profound device for energy conversion, a solid oxide electrolysis cell (SOEC) can efficiently convert CO₂ to CO, realizing chemical storage of renewable energy. However, developing active and stable cathode catalysts for the CO₂ reduction reaction (CO₂-RR) is critical for SOECs. Herein, to enhance the electrocatalytic performance of a La₀.₆Sr₀.₄Fe₀.₈Ni₀.₂O₃₋δ (LSFN) cathode cata ...
DOI:
10.1021/acssuschemeng.1c07576

5. Atom-by-Atom Synthesis of Multiatom-Supported Catalytic Clusters by Liquid-Phase Atomic Layer Deposition

Author:
Benjamin P. Le Monnier; Louisa Savereide; Murat Kılıç; Raphael Schnyder; Mounir D. Mensi; Claudia E. Avalos; Ursula Rothlisberger; Jeremy S. Luterbacher
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.11 pp. 3455-3465
ISSN:
2168-0485
Subject:
X-radiation; absorption; catalysts; dehydrogenation; elemental composition; green chemistry; propane
Abstract:
... Here, we introduce a method for the synthesis of atomically precise, supported, multiatom catalysts by liquid-phase atomic layer deposition. This technique is based on consecutive grafting reactions in mild conditions that build supported active sites atom by atom. The atomically controlled synthesis procedure led to the growth of well-defined multinuclear (Al, Mg, Si, Zn, and O) clusters. The com ...
DOI:
10.1021/acssuschemeng.1c07056

6. Auto-Tandem Catalytic Reductive Hydroformylation in a CO₂-Switchable Solvent System

Author:
Sebastian Püschel; Jan Sadowski; Thorsten Rösler; Kira Ruth Ehmann; Andreas J. Vorholt; Walter Leitner
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.11 pp. 3749-3756
ISSN:
2168-0485
Subject:
alcohols; biosynthesis; carbon; catalysts; energy; green chemistry; ligands; solvents
Abstract:
... Upgradation of olefin-enriched Fischer–Tropsch cuts by the synthesis of alcohols leads to drop-in-capable biosynthetic fuels with low carbon emissions. As an alternative to the conventional two-step production of long-chain alcohols, tandem catalytic systems improve the energy and resource efficiency. Herein, we present an auto-tandem catalytic system for the production of alcohols from olefin–par ...
DOI:
10.1021/acssuschemeng.2c00419

7. Bimetallic Layered Hydroxide Nitrate@Graphene Oxide as an Electrocatalyst for Efficient Non-Enzymatic Glucose Sensors: Tuning Sensitivity by Hydroxide-Regulated M₂(OH)₄–ₙ(Aⁿ–) Phases Derived from Solvent Engineering

Author:
Sampath Gayathri; Paulraj Arunkumar; Jaekook Kim; Jong Hun Han
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.4 pp. 1689-1701
ISSN:
2168-0485
Subject:
carbonates; catalysts; catalytic activity; detection limit; electrochemistry; ethanol; glucose; graphene oxide; green chemistry; nanosheets; nitrates; oxidation; solvents; synergism
Abstract:
... Owing to their high catalytic activity, transition metal hydroxides are promising electrocatalysts for non-enzymatic glucose sensors. The hydroxyl functionalities in Co₁–ₓNiₓ hydroxide/mixed anionic hydroxides play a vital role in their electrochemical activation via conversion to an oxyhydroxide catalyst and thus impact their sensitivity to small molecule (glucose) oxidation. Herein, we report th ...
DOI:
10.1021/acssuschemeng.1c07644

8. Bimetallic Oxide Catalyst for the Dehydrogenative Oxidation Reaction of Alcohols: Practical Application in the Synthesis of Value-Added Chemicals

Author:
Rupali Mittal; Satish Kumar Awasthi
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.4 pp. 1702-1713
ISSN:
2168-0485
Subject:
acetates; catalysts; catalytic activity; cobalt; cobalt oxide; dehydrogenation; green chemistry; hydrogen; niacin; oxidation; reaction kinetics; succinic acid; surface area; value added; zinc
Abstract:
... This work demonstrates the preparation of zinc cobalt oxide materials (ZCO-1, ZCO-2, and ZCO-3) via thermal annealing of novel zinc cobalt acetate hydroxide precursors prepared in three different Co/Zn molar ratios (2:1, 1:1, and 1:2). Among these, the ZCO-1 sample displayed superior catalytic activity for the dehydrogenative oxidation of alcohols to carboxylic acids, exhibiting wide substrate app ...
DOI:
10.1021/acssuschemeng.1c07799

9. Biodegradation of Lignin into Low-Molecular-Weight Oligomers by Multicopper Laccase-Mimicking Nanozymes of the Cu/GMP Complex at Room Temperature

Author:
Yingying Yang; Jingyu Xu; Yanzhu Guo; Xing Wang; Ling-Ping Xiao; Jinghui Zhou
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.17 pp. 5489-5499
ISSN:
2168-0485
Subject:
ambient temperature; atmospheric pressure; biodegradation; biodiesel; canola oil; catalysts; chemoselectivity; cleavage (chemistry); coordination polymers; depolymerization; green chemistry; guanosine; laccase; ligands; lignin; oxidative stability
Abstract:
... Laccase is a highly versatile multicopper oxidase for lignin biodegradation. Using nanomaterials to realize functional laccase simulations is attractive for applications and fundamental research. Herein, this study reports a facile strategy to fabricate a Cu metal–organic framework (MOF) by using copper as a metal center with guanosine 5′-monophosphate (GMP) as organic ligands (Cu/GMP). This obtai ...
DOI:
10.1021/acssuschemeng.1c08679

10. Biomass-Modified Zirconium-Based Catalyst for One-Pot Reductive Etherification of Bioderived Aldehydes to Furanic Diether

Author:
Weitao Wang; Huan Wang; Xulu Jiang; Zhen-Hong He; Yang Yang; Kuan Wang; Zhao-Tie Liu
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.15 pp. 4969-4979
ISSN:
2168-0485
Subject:
biomass; catalysts; green chemistry; hot water treatment; hydroxymethylfurfural; isopropyl alcohol; zirconium
Abstract:
... The furanic diether of 2,5-bis(isopropoxymethyl)furan (BPMF) derived from 5-hydroxymethylfurfural (HMF) can be used as a biobased fuel or fuel additive. It is highly desirable but challenging to develop a one-pot process for the transformation of HMF into BPMF because it is a cascade sequence reaction involving reduction and etherification reactions over multifunctional acid catalysts. In this wor ...
DOI:
10.1021/acssuschemeng.1c08351

11. Biowaste-Derived, Hyperbranched Dendritic EDTA Analogue as an Anionic Biochelator with Superior Metal Affinity

Author:
Shanyu Meng; Zhaohui Tong; Shugang Zhang; Gengnan Li; Hanxi Bao; Steven D. Bruner; Yuncong C. Li; Yongsheng Chen
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.6 pp. 2010-2021
ISSN:
2168-0485
Subject:
EDTA (chelating agent); acidification; aqueous solutions; bioeconomics; biopolymers; catalysts; cost effectiveness; crosslinking; divalent metals; epoxides; green chemistry; ligands; lignin; lignosulfonates; spectroscopy; transmission electron microscopy; wastes
Abstract:
... The dendritic biopolymer ligands with superior chelating capability have potential applications in the environmental catalyst, sensor, and medical areas. However, natural polymers usually have complex molecular structures and limited functional groups, which result in poor reactivity and grafting capability to prevent the formation of a dendritic ligand with abundant functional groups. Thus, this ...
DOI:
10.1021/acssuschemeng.1c05190

12. Boosting Electrocatalytic Hydrazine Oxidation Reaction on High-Index Faceted Au Concave Trioctahedral Nanocrystals

Author:
Feng Liu; Xin Jiang; Hong-Hui Wang; Cheng Chen; Yu-Han Yang; Tian Sheng; Yong-Sheng Wei; Xin-Sheng Zhao; Lu Wei
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.2 pp. 696-702
ISSN:
2168-0485
Subject:
catalysts; green chemistry; hydrazine; nanocrystals; oxidation
Abstract:
... High-index faceted Au nanocrystals are explored as an efficient catalyst in the electrocatalytic hydrazine oxidation reaction (HzOR). Theoretical calculations reveal that the Au(551) surface is more active than the Au(111) surface toward HzOR with lower overpotentials, and the step atoms on the Au(551) surface serve as high-active sites to enhance HzOR. Experimentally, the as-prepared concave trio ...
DOI:
10.1021/acssuschemeng.1c07700

13. Boosting Hydrogen Oxidation Performance of Phase-Engineered Ni Electrocatalyst under Alkaline Media

Author:
Yunbo Li; Zhen Li; Hengjiang Cong; Chaoyi Yang; Gongzhen Cheng; Wei Luo
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.11 pp. 3682-3689
ISSN:
2168-0485
Subject:
catalysts; density functional theory; energy; green chemistry; hydrogen; oxidation
Abstract:
... Exploring high-performance and stable Ni-based electrocatalyst toward the hydrogen oxidation reaction (HOR) under alkaline media is crucial for the development of alkaline exchange membrane fuel cells (AEMFCs). Herein, we demonstrate that a phase-engineered Ni electrocatalyst with the hexagonal-close-packed (hcp)/face-centered-cubic (fcc) interface can be adopted as a highly efficient and stable c ...
DOI:
10.1021/acssuschemeng.2c00037

14. Calcium-Catalyzed Hydroboration of Alkenes

Author:
Man Luo; Jinyi Shi; Xi Chen; Zhenghan Guo; Haoqi Qu; Hui Qiu; Weiwei Yao; Jun-Ling Song; Mengtao Ma
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.15 pp. 5015-5023
ISSN:
2168-0485
Subject:
alkenes; calcium; catalysts; catalytic activity; green chemistry; magnesium; regioselectivity
Abstract:
... Earth-abundant group 2 metal complexes offer an inexpensive and sustainable alternative to precious transition metal catalysts in many synthetic scenarios. As such, calcium and magnesium catalysts have attracted ever increasing interest as viable replacements for traditional transition metal-based catalysts for alkene hydroboration. Herein, we report the alkaline-earth metal-catalyzed hydroboratio ...
DOI:
10.1021/acssuschemeng.2c00323

15. Cascade Reaction of Ethanol to Butadiene over Multifunctional Silica-Supported Ag and ZrO₂ Catalysts

Author:
Naomi Miyake; Gordon Brezicki; Robert J. Davis
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.2 pp. 1020-1035
ISSN:
2168-0485
Subject:
X-ray absorption spectroscopy; acetaldehyde; acetone; byproducts; carbon dioxide; catalysts; dehydrogenation; environmental impact; ethanol; green chemistry; hydrogenation; infrared spectroscopy; isomerization; isopropyl alcohol; pyridines; silica; ultraviolet-visible spectroscopy
Abstract:
... Although butadiene is currently a byproduct of naphtha cracking, interest in producing butadiene from biobased ethanol has increased because of the lower environmental impact of the ethanol to butadiene reaction. This work explores a multifunctional catalyst system composed of silica-supported Ag and ZrO₂ used for the cascade reaction of ethanol to butadiene at 573 K. The Ag and ZrO₂ components we ...
DOI:
10.1021/acssuschemeng.1c07459

16. Catalyst Recycling in the Reactive Distillation of Primary Alcohols to Olefins Using a Phosphoric Acid Catalyst

Author:
Jeroen T. Vossen; Andreas J. Vorholt; Walter Leitner
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.18 pp. 5922-5931
ISSN:
2168-0485
Subject:
biomass; catalysts; catalytic activity; chemical industry; distillation; green chemistry; phosphoric acid; temperature
Abstract:
... Olefins are essential basic chemicals in all areas of the chemical industry and can be produced from alcohols by dehydration. The amount of alcohols produced from biomass sources is expected to rise in the next decade. Various heterogeneously catalyzed processes have been developed in previous works operating at a high reaction temperature of 350 °C to obtain olefins from alcohols. In this work, w ...
DOI:
10.1021/acssuschemeng.2c00237

17. Catalytic Pyrolysis Using a Nickel-Functionalized Chemically Activated Biochar Catalyst: Insight into Process Kinetics, Products, and Mechanism

Author:
Shubhi Gupta; Pushpraj Patel; Prasenjit Mondal
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.18 pp. 5770-5780
ISSN:
2168-0485
Subject:
activation energy; biochar; biofuels; biomass; catalysts; conifer needles; green chemistry; pyrolysis; temperature; thermogravimetry
Abstract:
... The present study highlighted the impact of biochar (BC)-based catalysts on catalytic pyrolysis of pine needle biomass. Thermogravimetric plots showed positive influence of catalysts by indicating reduction in the temperature requirement of the process. The same had also been stated through process kinetics by demonstrating reduction in the process’s activation energy (Eₐ). Eₐ had been reduced fro ...
DOI:
10.1021/acssuschemeng.1c08193

18. Computational Mechanism of Methyl Levulinate Conversion to γ-Valerolactone on UiO-66 Metal Organic Frameworks

Author:
Manuel A. Ortuño; Marcos Rellán-Piñeiro; Rafael Luque
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.11 pp. 3567-3573
ISSN:
2168-0485
Subject:
biomass; catalysts; density functional theory; green chemistry; hydrogenation; porosity; reaction mechanisms
Abstract:
... Metal–organic frameworks (MOFs) are gaining importance in the field of biomass conversion and valorization due to their porosity, well-defined active sites, and broad tunability. But for a proper catalyst design, we first need detailed insight of the system at the atomic level. Herein, we present the reaction mechanism of methyl levulinate to γ-valerolactone on Zr-based UiO-66 by means of periodic ...
DOI:
10.1021/acssuschemeng.1c08021

19. Conversion of Biomass-Derived Methyl Levulinate to Methyl Vinyl Ketone

Author:
Fatima El Ouahabi; Wietse Smit; Carlo Angelici; Mykola Polyakov; Uwe Rodemerck; Christine Fischer; V. Narayana Kalevaru; Sebastian Wohlrab; Sergey Tin; Gerard P. M. van Klink; Jan C. van der Waal; François Orange; Johannes G. de Vries
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.2 pp. 766-775
ISSN:
2168-0485
Subject:
calcium oxide; carbon; catalysts; exercise; extrusion; green chemistry; hydrogenation; levulinic acid; methanol; reaction mechanisms; temperature
Abstract:
... A high-throughput screening exercise testing 60 different catalysts resulted in 5 wt % Pt on sulfided carbon as the best catalyst in the conversion of bio-based methyl levulinate (ML) to methyl vinyl ketone (MVK) in a gas-phase continuous process. Up to 18% yield of MVK was obtained, but fast catalyst deactivation was observed. For a better understanding of the reaction mechanism, the potential re ...
DOI:
10.1021/acssuschemeng.1c05694

20. Conversion of Waste Plastic Packings to Carbon Nanomaterials: Investigation into Catalyst Material, Waste Type, and Product Applications

Author:
Dingding Yao; He Li; Babu Cadiam Mohan; Arun Kumar Prabhakar; Yanjun Dai; Chi-Hwa Wang
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.3 pp. 1125-1136
ISSN:
2168-0485
Subject:
adsorbents; adsorption; carbon; carbon dioxide; catalysts; green chemistry; hydrogen; hydrogen production; value added; wastes; wastewater treatment
Abstract:
... Waste plastics collected from local food courts were catalytically pyrolyzed and decomposed to produce carbon nanomaterials (CNMs) as well as hydrogen-rich gases as byproducts in this work. A series of bimetallic catalysts: Co–Fe, Co–Ni, and Fe–Ni with MgO as the catalyst support were synthesized and compared for the process. Products including high value-added carbon nanomaterials and gases were ...
DOI:
10.1021/acssuschemeng.1c05945

21. Development of Co–Nb–CeO₂ Catalyst for Hydrogen Production from Waste-Derived Synthesis Gas Using Techno-Economic and Environmental Assessment

Author:
Kyung-Won Jeon; Hui-Ju Byeon; Hak-Min Kim; Bomin Choe; Chang-Hoon Jeong; Tae-Yeol Choi; Wangyun Won; Dae-Woon Jeong
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.19 pp. 6289-6303
ISSN:
2168-0485
Subject:
catalysts; catalytic activity; comparative study; coprecipitation; cost effectiveness; environmental assessment; green chemistry; hydrogen; hydrogen production; oxygen; surface area; synthesis gas; temperature; wastes
Abstract:
... A comparative study to obtain a cost-competitive catalyst was performed to produce hydrogen via the high temperature water gas shift (WGS) reaction using synthesis gas (syngas) derived from waste. First, several selected active metals on Nb–CeO₂ support and preparation methods were applied to prepare highly active and stable catalysts under severe reaction conditions. Various characterization meth ...
DOI:
10.1021/acssuschemeng.2c00614

22. Development of Nitrogen Doped Carbon Supported PtNi Alloy with a Pt Shell for the Production of Impurity-Free V³.⁵⁺ Electrolyte for Vanadium Redox Flow Batteries

Author:
Hojin Lee; Hansol Choi; Junwon Hwang; Hansung Kim
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.19 pp. 6181-6189
ISSN:
2168-0485
Subject:
alloys; carbon; catalysts; catalytic activity; cost effectiveness; formic acid; green chemistry; hydrogen production; nitrogen; oxidation; vanadium
Abstract:
... The catalytic reduction method using formic acid as a reducing agent is simple and cost-effective for the preparation of impurity-free V³.⁵⁺ electrolyte for vanadium redox flow batteries (VRFBs). However, it requires a highly active and stable catalyst to improve the conversion rate of vanadium ion in a strong acid environment. In this study, the PtNi alloy catalyst supported on N-doped carbon (Pt ...
DOI:
10.1021/acssuschemeng.1c07773

23. Direct 2,3-Butanediol Conversion to Butene-Rich C₃₊ Olefins over Copper-Modified 2D Pillared MFI: Consequence of Reduced Diffusion Length

Author:
Shiba Adhikari; Junyan Zhang; Kinga Unocic; Evan C. Wegener; Pranaw Kunal; Dhruba J. Deka; Todd Toops; Sreshtha Sinha Majumdar; Theodore R. Krause; Dongxia Liu; Zhenglong Li
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.4 pp. 1664-1674
ISSN:
2168-0485
Subject:
air transportation; aviation; biomass; carbon dioxide; catalysts; feedstocks; green chemistry; olefin; oligomerization; porous media; synthesis gas; transportation industry
Abstract:
... 2,3-Butanediol (2,3-BDO), a critical C₄ platform chemical derived from biomass, syngas, or CO₂, can be converted to C₃₊ olefins, serving as important renewable feedstocks for producing sustainable aviation fuels to decarbonize the hard-to-electrify air transportation sector. Herein, we report a bifunctional Cu-modified diffusion-free 2D pillared MFI catalyst (Cu/PMFI) which can selectively catalyz ...
DOI:
10.1021/acssuschemeng.1c07670

24. Direct Reuse of Spent Lithium-Ion Batteries as an Efficient Heterogeneous Catalyst for the Reductive Upgrading of Biomass-Derived Furfural

Author:
Emilia Paone; Mariachiara Miceli; Angela Malara; Guozhu Ye; Elsayed Mousa; Elza Bontempi; Patrizia Frontera; Francesco Mauriello
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.7 pp. 2275-2281
ISSN:
2168-0485
Subject:
catalysts; electronic wastes; furfural; furfuryl alcohol; green chemistry; hydrogenation; isopropyl alcohol
Abstract:
... “Black mass”, namely, the mixture of anodic and cathodic materials arising from mechanical shredding of spent Li-ion batteries (LIBs), can be easily converted into an efficient heterogeneous catalyst for selective reductions. Here, we demonstrate a concept showing how LIBs, after appropriate thermal treatments, can be directly used as catalysts for the selective hydrogenation of biobased furfural ...
DOI:
10.1021/acssuschemeng.1c08008

25. Effect of Ball-Milling Pretreatment of Cellulose on Its Photoreforming for H₂ Production

Author:
Lan Lan; Huanhao Chen; Daniel Lee; Shaojun Xu; Nathan Skillen; Aleksander Tedstone; Peter Robertson; Arthur Garforth; Helen Daly; Christopher Hardacre; Xiaolei Fan
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.15 pp. 4862-4871
ISSN:
2168-0485
Subject:
X-ray diffraction; catalysts; cellulose; crystal structure; crystallization; green chemistry; particle size; polymerization
Abstract:
... Photoreforming of cellulose is a promising route for sustainable H₂ production. Herein, ball-milling (BM, with varied treatment times of 0.5–24 h) was employed to pretreat microcrystalline cellulose (MCC) to improve its activity in photoreforming over a Pt/TiO₂ catalyst. It was found that BM treatment reduced the particle size, crystallinity index (CrI), and degree of polymerization (DP) of MCC si ...
DOI:
10.1021/acssuschemeng.1c07301

26. Effect of Crystalline Structure on the Catalytic Hydrolysis of Cellulose in Subcritical Water

Author:
Yue Liu; Hongqiao Fu; Wei Zhang; Haichao Liu
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.18 pp. 5859-5866
ISSN:
2168-0485
Subject:
acid hydrolysis; activation energy; biomass; catalysts; cellulose; crystal structure; depolymerization; glycosidic linkages; green chemistry; polymerization; probability; reaction kinetics
Abstract:
... Depolymerization of cellulose, the most abundant biomass in nature, is a critical step for its catalytic conversion to fuels and chemicals. While cleavage of its glycosidic bond by acid hydrolysis is the rate-determining step to depolymerize cellulose, disrupting its robust crystalline structure is equally important. In this work, we examined the hydrolysis of cellulose of four different crystalli ...
DOI:
10.1021/acssuschemeng.1c08703

27. Efficient Base Nickel-Catalyzed Hydrogenolysis of Furfural-Derived Tetrahydrofurfuryl Alcohol to 1,5-Pentanediol

Author:
Mohammed Al-Yusufi; Norbert Steinfeldt; Reinhard Eckelt; Hanan Atia; Henrik Lund; Stephan Bartling; Nils Rockstroh; Angela Köckritz
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.15 pp. 4954-4968
ISSN:
2168-0485
Subject:
batch systems; catalysts; catalytic activity; deprotonation; green chemistry; hydrogen; isopropyl alcohol; lanthanides; nickel
Abstract:
... Nickel(0) supported by strongly basic lanthanide hydroxides/oxyhydroxides (Ni-Ln, Ln = La, Pr, and Sm) is an efficient alternative noble metal-free catalyst for hydrogenolysis of tetrahydrofurfuryl alcohol (THFA) to 1,5-pentanediol (1,5-PeD) in organic solvents (e.g., isopropanol). The catalytic performance of Ni-Ln was studied both in batch and continuous modes. The highest yield of 1,5-PeD was 8 ...
DOI:
10.1021/acssuschemeng.1c08340

28. Efficient Bifunctional Catalysts for Enhanced Carbon Conversions and Alky-Aromatics Production in Crude Bio-glycerol Methanol Processes

Author:
Vijendra Singh; Selvamani Arumugam; Anup Prakash Tathod; Nagabhatla Viswanadham
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.16 pp. 5323-5332
ISSN:
2168-0485
Subject:
Bronsted acids; Lewis acids; acidity; alkaline earth metals; aromatic compounds; byproducts; carbon; catalysts; dehydrogenation; gasoline; glycerol; green chemistry; liquids; methanol
Abstract:
... The present study reports the development of an alkali earth metal (Ba)-modified Zn/ZSM-5 catalyst for efficient carbon conversion of bio-derived crude glycerol toward aromatics production in a methanol (GMTA) co-process. The metal functionality caused considerable alteration in acidity to improve the dehydrogenation properties of the catalyst to produce more aromatics and to simultaneously contro ...
DOI:
10.1021/acssuschemeng.2c00660

29. Electroplating Sludge-Derived Multiple-Metal-Doped Spinel with Superior CO Selectivity in Reverse Water–Gas-Shift Reaction

Author:
Hao Hou; Luman Hou; Qiang Yu; Jia Zhang; Guangren Qian
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.6 pp. 2214-2223
ISSN:
2168-0485
Subject:
adsorption; carbon; carbon dioxide; catalysts; dissociation; green chemistry; hydrogenation; sludge
Abstract:
... At present, carbon reduction is one of the hottest topics and CO is the raw source of many industrial products. For the first time, this work reported CO₂ conversion to CO with superior selectivity via hydrogenation using an electroplating sludge-derived catalyst. As a result, the optimized catalyst attained a best CO₂ conversion of 45.88% and CO selectivity of 99.97% at 600 °C. What is more, the ...
DOI:
10.1021/acssuschemeng.1c08087

30. Encapsulation of Ru Complexes into Poly(ionic liquid) Enables the Methanation of CO₂ under Mild Conditions

Author:
Rui Wang; Yi-Ran Du; Guang-Rong Ding; Rui Zhang; Peng-Xin Guan; Bao-Hua Xu
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.16 pp. 5363-5373
ISSN:
2168-0485
Subject:
adsorption; carbon dioxide; catalysts; catalytic activity; chlorides; durability; encapsulation; green chemistry; hydrogenation; imidazoles; ionic liquids; ligands; methane production; surface area; temperature
Abstract:
... In this work, the vapor-phase methanation of CO₂ at a low temperature was achieved under the catalysis of [Ru]@P(ILⁿ-POSS)-Cl-A (n = 2, 3, 4) hybrids, wherein the molecular low-valent Ru complexes were encapsulated into the imidazolium chloride-decorated porous poly(ionic liquid) skeleton. Mechanistic studies suggest that it follows the cascade hydrogenation of CO₂ without the formation of CO inte ...
DOI:
10.1021/acssuschemeng.2c00891

31. Energetics of Reaction Pathways Enabled by N and H Radicals during Catalytic, Plasma-Assisted NH₃ Synthesis

Author:
Tsung-Wei Liu; Fnu Gorky; Maria L. Carreon; Diego A. Gómez-Gualdrón
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.6 pp. 2034-2051
ISSN:
2168-0485
Subject:
adsorption; ammonia; catalysts; catalytic activity; decentralization; density functional theory; dissociation; green chemistry; hydrogenation; radio waves; renewable energy sources; spectroscopy
Abstract:
... Plasma-assisted catalysis is emerging as an alternative to several thermocatalytic processes. For ammonia synthesis, it could make the process milder, which would help production, decentralization, and compatibility with renewable energy. However, one major obstacle preventing optimization of the plasma-assisted process is the incipient mechanistic understanding of ammonia formation on plasma-expo ...
DOI:
10.1021/acssuschemeng.1c05660

32. Ethanol Conversion to C₄₊ Olefins over Bimetallic Copper- And Lanthanum-Containing Beta Zeolite Catalysts

Author:
Michael J. Cordon; Junyan Zhang; Nohor “River” Samad; James W. Harris; Kinga A. Unocic; Meijun Li; Dongxia Liu; Zhenglong Li
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.18 pp. 5702-5707
ISSN:
2168-0485
Subject:
catalysts; copper; ethanol; ethyl ether; ethylene; green chemistry; lanthanum; olefin; zeolites
Abstract:
... Ethanol conversion to C₄₊ olefins remains a critical yet nonselective process for producing renewable middle distillates. Here, Cu–La/Beta catalysts composed of copper and lanthanum incorporated onto a dealuminated Beta support are reported for ethanol conversion to C₄₊ olefins (73% selectivity, ∼98% ethanol conversion, 623 K,<4% C₁–C₃ hydrocarbons) which particularly favors C₅₊ olefin formation ( ...
DOI:
10.1021/acssuschemeng.1c07442

33. Fabrication of P-Doped Porous Carbon Catalysts, with Inherent N Functionality, from Waste Peanut Shells and Their Application in the Metal-Free Aerobic Oxidation of Alcohols

Author:
Zhu Yin; Xing Liu; Fengzhen Wu; Beili Lu; Biao Huang; Yandan Chen; Guanfeng Lin
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.2 pp. 911-922
ISSN:
2168-0485
Subject:
benzyl alcohol; biomass; carbon; catalysts; catalytic activity; extrusion; green chemistry; heat treatment; oxidation; peanuts; phosphoric acid; synergism; wastes
Abstract:
... Based on low-cost, N-containing biomass waste peanut shells and phosphoric acid, the P element was successfully introduced into the carbon skeleton to obtain P-doped porous carbon materials, with inherent N functionality. In comparison to carbon catalysts functionalized with just N or P (NC-800 or PC), the as-prepared P-doped, N-containing porous carbon materials (NPC-T) possessed superior catalyt ...
DOI:
10.1021/acssuschemeng.1c06692

34. Family 1 Glycosyltransferase UGT706F8 from Zea mays Selectively Catalyzes the Synthesis of Silibinin 7-O-β-d-Glucoside

Author:
Gonzalo N. Bidart; Natalia Putkaradze; Folmer Fredslund; Christian Kjeldsen; Ander Garralda Ruiz; Jens Ø. Duus; David Teze; Ditte H. Welner
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.16 pp. 5078-5083
ISSN:
2168-0485
Subject:
Zea mays; catalysts; crystal structure; glucosylation; glycosyltransferases; green chemistry; pH; regioselectivity; solubility; temperature
Abstract:
... Regioselective glycosylation is a chemical challenge, leading to multistep syntheses with protecting group manipulations, ultimately resulting in poor atom economy and compromised sustainability. Enzymes allow eco-friendly and regioselective bond formation with fully deprotected substrates in a single reaction. For the selective glucosylation of silibinin, a pharmaceutical challenged with low solu ...
DOI:
10.1021/acssuschemeng.1c07593

35. Guaiacol Hydrodeoxygenation and Hydrogenation over Bimetallic Pt-M (Nb, W, Zr)/KIT-6 Catalysts with Tunable Acidity

Author:
Yang Xiao; Anand Ramanathan; Bala Subramaniam; Arvind Varma
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.15 pp. 4831-4838
ISSN:
2168-0485
Subject:
acidity; biofuels; biomass; carbon; catalysts; green chemistry; guaiacol; hydrogen; hydrogenation; oxygen; partial pressure; porous media; pyrolysis; reaction mechanisms
Abstract:
... Owing to a high oxygen content, bio-oils from the fast pyrolysis of biomass require upgrading to meet fuel specification standards. Catalytic hydrodeoxygenation (HDO) of bio-oils faces several challenges such as low hydrocarbon yields, the requirement of high H₂ partial pressure for complete deoxygenation, and catalyst deactivation caused by coking/carbon deposition. In the present work, Pt suppor ...
DOI:
10.1021/acssuschemeng.1c07071

36. High-Productivity Continuous Conversion of Glucose to α-Hydroxy Esters over Postsynthetic and Hydrothermal Sn-Beta Catalysts

Author:
Luca Botti; Ricardo Navar; Søren Tolborg; Juan S. Martínez-Espín; Ceri Hammond
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.14 pp. 4391-4403
ISSN:
2168-0485
Subject:
catalysts; glucose; green chemistry; industry; lactic acid; methanol; polymers; spectroscopy; streams; zeolites
Abstract:
... The retro-aldol fragmentation of glucose is a complex reaction of industrial relevance, which provides a potentially sustainable route for the production of α-hydroxyester compounds of relevance to the green polymer industry, such as methyl lactate and methyl vinyl glycolate. Although the zeolite catalyst, Sn-Beta, has shown itself to be a promising catalyst for this process, important information ...
DOI:
10.1021/acssuschemeng.1c06989

37. Highly Selective Adsorption and Recovery of Palladium from Spent Catalyst Wastewater by 1,4,7,10-Tetraazacyclododecane-Modified Mesoporous Silica

Author:
Chao Zeng; Pei Liu; Zhongliang Xiao; Yan Li; Liubin Song; Zhong Cao; Daoxin Wu; Yue-Fei Zhang
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.3 pp. 1103-1114
ISSN:
2168-0485
Subject:
adsorbents; adsorption; catalysts; density functional theory; desorption; green chemistry; ligands; pH; palladium; porous media; silica; temperature; thermodynamics; wastewater
Abstract:
... A new silicon-based adsorbent with good adsorption performance on Pd(II) was synthesized from mesoporous silica as a carrier and 1,4,7,10-tetraazacyclododecane as a functional ligand. The batch method was used to investigate and evaluate the adsorption performance of the adsorbent on Pd(II) in HCl-HNO₃ solution. Influencing factors such as the contact time, pH, temperature, initial Pd(II) concentr ...
DOI:
10.1021/acssuschemeng.1c05915

38. Improved Catalytic Transfer Hydrogenation of Biomass-Derived Aldehydes with Metal-Loaded Aluminum Phosphate

Author:
Wenting Fang; Anders Riisager
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.4 pp. 1536-1543
ISSN:
2168-0485
Subject:
acidity; aluminum phosphate; biomass; catalysts; catalytic activity; furfural; furfuryl alcohol; green chemistry; hydrogenation
Abstract:
... Catalytic transfer hydrogenation (CTH) is a benign and effective process for the conversion of biomass-derived platforms into fuels and chemicals. Here, aluminum phosphate (Al/P ratio = 1.5) (APO1.5) and alkali earth metal (AEM)-loaded APO1.5s were synthesized by impregnation and applied in the CTH of furfural (FF) into furfuryl alcohol (FA). The introduction of AEM created weak and medium basic s ...
DOI:
10.1021/acssuschemeng.1c06956

39. Improving Yields and Catalyst Reuse for Palmitic Acid Aromatization in the Presence of Pressurized Water

Author:
Jeffrey R. Page; Heather O. LeClerc; Philip Smolitsky; Joseph P. Esposito; Douglas P. Theberge; Azadeh Zaker; Alex R. Maag; Sanket Sabnis; Edward B. Ledford; John Coleman; Wei Fan; Siwen Wang; Jesse Q. Bond; Bernardo Castro-Dominguez; Michael T. Timko
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.17 pp. 5659-5673
ISSN:
2168-0485
Subject:
aromatization; catalysts; comprehensive two-dimensional gas chromatography; green chemistry; mass spectrometry; palmitic acid; particle size; toluene; water content
Abstract:
... ZSM-5 was evaluated for chemical production in a reaction mixture consisting of palmitic acid and water at conditions near the critical point of water (400 °C, 23 ± 2 MPa). Two types of ZSM-5, a microscale variety with particle diameters determined by scanning electron microscopy in the range from 1.66 to 2.56 μm (micro-ZSM-5) and a nanoscale variety with 350–730 nm diameters (nano-ZSM-5), and thr ...
DOI:
10.1021/acssuschemeng.2c00665

40. Interface-Engineered Porous Pt–PdO Nanostructures for Highly Efficient Hydrogen Evolution and Oxidation Reactions in Base and Acid

Author:
Rajib Samanta; Ranjit Mishra; Sudip Barman
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.11 pp. 3704-3715
ISSN:
2168-0485
Subject:
carbon; catalysts; catalytic activity; durability; electrochemistry; energy; green chemistry; hydrogen; hydrogen production; oxidation; reaction kinetics; surface area; synergism
Abstract:
... The enhancement of reaction kinetics and durability of the hydrogen evolution/oxidation reaction (HER/HOR) in basic media are necessary for the design of alkaline electrolyzers and fuel cells. In this work, an interface-engineered porous Pt–PdO–N-doped carbon (Pt–PdO/C) composite was synthesized for HER/HOR application in both the acidic and alkaline media. The Pt–PdO/C catalyst delivered an outst ...
DOI:
10.1021/acssuschemeng.2c00218

41. Iron Disilyl Complex as an Effective Catalyst for Hydrogenation of Unfunctionalized Multisubstituted Alkenes

Author:
Yoshinao Kobayashi; Yusuke Sunada
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.3 pp. 1078-1082
ISSN:
2168-0485
Subject:
alkenes; catalysts; green chemistry; hydrogenation
Abstract:
... The catalytic hydrogenation of various unfunctionalized alkenes by the iron disilyl complex Fe[Si(SiMe₃)₃]₂(THF)₂ was investigated. The catalytically active species can be generated in situ by simply mixing the commercially available precursors FeBr₂, Si(SiMe₃)₄, and KOᵗBu to prepare a practical iron catalyst system in the absence of any pyrophoric reactive reagents. ...
DOI:
10.1021/acssuschemeng.1c07822

42. Kinetics and Reaction Mechanisms of Acetic Acid Hydrodeoxygenation over Pt and Pt–Mo Catalysts

Author:
Yiteng Zheng; Yue Qi; Ziyu Tang; Felix Hanke; Simon G. Podkolzin
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.16 pp. 5212-5224
ISSN:
2168-0485
Subject:
X-radiation; acetic acid; activation energy; active sites; catalysts; density functional theory; desorption; feed composition; green chemistry; hydrogen; oxidation; oxygen; partial pressure; reaction kinetics; reaction mechanisms; spectroscopy; temperature; transmission electron microscopy
Abstract:
... Kinetic measurements for silica-supported Pt and Pt–Mo catalysts were collected in vapor-phase acetic acid hydrodeoxygenation by varying the hydrogen partial pressure between 18 and 72 kPa and the acetic acid partial pressure between 7 and 18 kPa at 423–473 K. Under all testing conditions, the Pt–Mo catalyst was more active and selective. In addition, the apparent activation energy for Pt–Mo of 76 ...
DOI:
10.1021/acssuschemeng.2c00179

43. Laser-Induced N- and B-Codoped Graphene Nanozymes with Intrinsic Peroxidase-Like Activities for Bactericidal Application

Author:
Liuying Chen; Ting Hou; Yulong Tan; Chengxiang Guo; Baokun Wang; Lei Ge; Feng Li
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.8 pp. 2750-2760
ISSN:
2168-0485
Subject:
Escherichia coli; Staphylococcus aureus; air; boron; carbon dioxide; catalysts; catalytic activity; graphene; graphene oxide; green chemistry; hydrophilicity; hydroxyl radicals; plastic film
Abstract:
... Conventional heteroatom-doped graphene oxide (GO) nanozymes usually suffer from complicated manufacturing processes and difficult recovery of nanozymes. Herein, a facile and ecofriendly approach is developed to write nitrogen- and boron-codoped GO nanozyme patterns on a flexible plastic film by CO₂ laser scanning in ambient air without any catalyst, mask, or template. The resulting N-doped laser-i ...
DOI:
10.1021/acssuschemeng.1c07907

44. Lignin-Glyoxal: A Fully Biobased Formaldehyde-Free Wood Adhesive for Interior Engineered Wood Products

Author:
Mohsen Siahkamari; Sasha Emmanuel; David B. Hodge; Mojgan Nejad
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.11 pp. 3430-3441
ISSN:
2168-0485
Subject:
adhesion; ambient temperature; biorefining; catalysts; corn stover; formaldehyde; gel chromatography; green chemistry; lignin; molecular weight; petroleum; phenol; plywood; wood
Abstract:
... In this study, a biobased phenolic adhesive was successfully developed by entirely substituting both petroleum-based phenol and formaldehyde with an unmodified corn stover biorefinery lignin and glyoxal (a biobased dialdehyde), respectively. Lignin-glyoxal resins were synthesized using an alkaline catalyst with a molar ratio of lignin to glyoxal of 1:2. Chemical, thermal, and mechanical properties ...
DOI:
10.1021/acssuschemeng.1c06843

45. Mechanism of the Significant Acceleration of Polyethylene Terephthalate Glycolysis by Defective Ultrathin ZnO Nanosheets with Heteroatom Doping

Author:
Jingjing Cao; Yuheng Lin; Wei Jiang; Wei Wang; Xiaodong Li; Tianpeng Zhou; Ping Sun; Bingcai Pan; Aimin Li; Quanxing Zhang
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.17 pp. 5476-5488
ISSN:
2168-0485
Subject:
catalysts; glycolysis; green chemistry; ligands; nanosheets; oxygen; polyethylene terephthalates; wastes
Abstract:
... The current scale of polyethylene terephthalate (PET) production and unreasonable handling have caused widespread environmental, economic, and health-related consequences. The catalytic glycolysis of PET waste is one effective method to solve this issue. Recently, improving yield and selectivity has become a major focus in the glycolysis of PET. Herein, we report a study on the synthesis of Co/ZnO ...
DOI:
10.1021/acssuschemeng.1c08656

46. Mechanistic Study of 1,2-Dichloroethane Hydrodechlorination on Cu-Rich Pt–Cu Alloys: Combining Reaction Kinetics Experiments with DFT Calculations and Microkinetic Modeling

Author:
Lang Xu; Eric Stangland; James A. Dumesic; Manos Mavrikakis
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.4 pp. 1509-1523
ISSN:
2168-0485
Subject:
adsorption; alloys; catalysts; chlorine; dechlorination; density functional theory; ethylene; ethylene dichloride; ethylene production; green chemistry; models; reaction kinetics; reaction mechanisms
Abstract:
... Cu-rich Pt–Cu bimetallic catalysts are among the most promising candidates for actively catalyzing the hydrodechlorination of 1,2-dichloroethane (1,2-DCA) toward ethylene production. Combining reaction kinetics experiments with density functional theory (DFT) calculations and mean-field microkinetic modeling, we present a systematic mechanistic study for 1,2-DCA hydrodechlorination on Cu-rich Pt–C ...
DOI:
10.1021/acssuschemeng.1c06899

47. Mesoporous Sn-In-MCM-41 Catalysts for the Selective Sugar Conversion to Methyl Lactate and Comparative Life Cycle Assessment with the Biochemical Process

Author:
Óscar de la Iglesia; Miryan Sarango; Mikel Munárriz; Magdalena Malankowska; Alberto Navajas; Luis M. Gandía; Joaquín Coronas; Carlos Téllez
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.9 pp. 2868-2880
ISSN:
2168-0485
Subject:
biochemical pathways; biomass; catalysts; catalytic activity; circular economy; energy; glucose; green chemistry; lactic acid; life cycle assessment; porous media; reaction mechanisms; sucrose
Abstract:
... The use of biomass for the production of energy and higher added value products is a topic of increasing interest in line with growing environmental concerns and circular economy. Mesoporous material Sn-In-MCM-41 was synthesized for the first time and used as a catalyst for the transformation of sugars to methyl lactate (ML). This catalyst was characterized in depth by various techniques and compa ...
DOI:
10.1021/acssuschemeng.1c04655

48. Metal-Free Sulfonate/Sulfate-Functionalized Carbon Nitride for Direct Conversion of Glucose to Levulinic Acid

Author:
Pawan Kumar; Ali Shayesteh Zeraati; Soumyabrata Roy; Kristen A. Miller; Aiguo Wang; Lawrence B. Alemany; Tareq A. Al-Attas; Dhwanil Trivedi; Pulickel M. Ajayan; Jinguang Hu; Md Golam Kibria
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.19 pp. 6230-6243
ISSN:
2168-0485
Subject:
carbon nitride; catalysts; dispersibility; energy efficiency; glucose; green chemistry; levulinic acid; porosity; sulfates; sulfonates; sulfur
Abstract:
... Metal-free heteroatom-doped carbonaceous materials such as carbon nitride (CN) with secondary/tertiary nitrogen-rich catalytic centers as well as chemical and thermal resilience can potentially serve as catalysts for many organic reactions. However, because of the stable alternate Csp²–Nsp² configuration of N-linked heptazine units (C₆N₇), the chemical modification of CN via doping and functionali ...
DOI:
10.1021/acssuschemeng.2c00309

49. Multiphase Hydrogenation of d-Glucosamine Hydrochloride, N-Acetyl-d-Glucosamine, d-Glucose, and d-Maltose over Ru/C with Integrated Catalyst Recovery

Author:
Daniele Polidoro; Alvise Perosa; Elena Barbaro; Matteo Feltracco; Elena Argiriadis; Maurizio Selva
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.8 pp. 2844-2858
ISSN:
2168-0485
Subject:
catalysts; chemoselectivity; glucosamine; glucose; green chemistry; hydrogenation; iso-octanes; liquids; maltitol; maltose; methyl ethers; sorbitol; tetrahydrofuran
Abstract:
... A multiphase (MP) system composed of two immiscible liquids, water and isooctane, and commercial 5% Ru/C as a catalyst, both with and without an additional organic liquid (OL: tetrahydrofuran (THF), 2-methyl-THF, methyl isobutyl carbinol, and cyclopentyl methyl ether) was designed and investigated for the chemoselective catalytic hydrogenation of four model examples of biobased sugars and amino/am ...
DOI:
10.1021/acssuschemeng.1c08540

50. N, P Dual-Doped Porous Carbon Nanosheets for High-Efficiency CO₂ Electroreduction

Author:
Xiaodu Liang; Na Tian; Zhiyou Zhou; Shigang Sun
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.5 pp. 1880-1887
ISSN:
2168-0485
Subject:
carbon; carbon dioxide; catalysts; green chemistry; nanosheets; surface area
Abstract:
... Electroreduction of CO₂ to CO with metal-free nitrogen-doped carbon (N–C) catalysts offers an eco-friendly approach for CO₂ reuse. Nevertheless, it is challenging to achieve high selectivity and activity when biased at low overpotentials. Here, we report a porous N, P dual-doped carbon nanosheet catalyst (NPC) synthesized through a novel sacrificial templating approach for efficient CO₂ reduction. ...
DOI:
10.1021/acssuschemeng.1c07601