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You searched for: Journal name Journal of materials chemistry A Remove constraint Journal name: Journal of materials chemistry A Subject term butanol Remove constraint Subject term: butanol
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1. Solvent polarity tuning to enhance the crystallinity of 2D-covalent organic frameworks for visible-light-driven hydrogen generation

Author:
Ahmed M. Elewa; Ahmed F. M. EL-Mahdy; Ahmed E. Hassan; Zhenhai Wen; Jayachandran Jayakumar; Tsung-Lin Lee; Li-Yu Ting; Islam M. A. Mekhemer; Tse-Fu Huang; Mohamed Hammad Elsayed; Chih-Li Chang; Wei-Cheng Lin; Ho-Hsiu Chou
Source:
Journal of materials chemistry A 2022 v.10 no.23 pp. 12378-12390
ISSN:
2050-7496
Subject:
butanol; crystal structure; crystallization; dioxane; ethanol; hydrogen production; irradiation; light; photocatalysis; solvents; thermal stability
Abstract:
... The fabrication of crystalline COF materials with predictable structures and desirable features is one of the crystal engineering strategic goals. Many synthetic factors play an invisible role in the crystallization of COFs, and the nature of the solvent is one of the most influential. Herein, we synthesized two series of benzothiadiazole-based COFs using three pairs of solvent systems of differen ...
DOI:
10.1039/d2ta00328g

2. An advanced necklace-like metal organic framework with an ultrahighly continuous structure in the membrane for superior butanol/water separation

Author:
Li-Hao Xu; Shen-Hui Li; Heng Mao; Ao-Shuai Zhang; Wei-Wei Cai; Tao Wang; Zhi-Ping Zhao
Source:
Journal of materials chemistry A 2021 v.9 no.19 pp. 11853-11862
ISSN:
2050-7496
Subject:
butanol; coordination polymers; environmental protection; membrane permeability; nanotubes; pervaporation; petroleum; pyrroles
Abstract:
... The fabrication of mixed matrix membranes (MMMs) for pervaporation recovery of butanol from aqueous solutions is garnering significant attention. However, constructing highly continuous metal–organic frameworks (MOFs) with reasonable loading as molecular pathways in MMMs using a scalable, mature, and controlled solution casting strategy remains challenging. We developed a novel advanced pearl neck ...
DOI:
10.1039/d1ta01736e

3. A two-dimensional Ti₃C₂TX MXene@TiO₂/MoS₂ heterostructure with excellent selectivity for the room temperature detection of ammonia

Author:
Xu Tian; Lijia Yao; Xiuxiu Cui; Rongjun Zhao; Ting Chen; Xuechun Xiao; Yude Wang
Source:
Journal of materials chemistry A 2022 v.10 no.10 pp. 5505-5519
ISSN:
2050-7496
Subject:
acetone; adsorption; ambient temperature; ammonia; butanol; density functional theory; detection limit; formaldehyde; hot water treatment; nanocomposites; nanosheets; nitrogen dioxide; triethylamine; trimethylamine
Abstract:
... Two-dimensional nanomaterials have exhibited considerable potential for gas sensing applications in recent years owing to their unique physical and chemical properties such as a large surface-to-volume ratio, abundant edge sites, versatile surface chemistry, etc. Herein, we demonstrate a two-dimensional Ti₃C₂TX MXene@TiO₂/MoS₂ nanocomposite gas sensor for ammonia detection at room temperature. MoS ...
DOI:
10.1039/d1ta10773a

4. Quantum of selectivity testing: detection of isomers and close homologs using an AZO based e-nose without a prior training

Author:
Boris V. Goikhman; Fedor S. Fedorov; Nikolay P. Simonenko; Tatiana L. Simonenko; Nikita A. Fisenko; Tatiana S. Dubinina; George Ovchinnikov; Anna V. Lantsberg; Alexey Lipatov; Elizaveta P. Simonenko; Albert G. Nasibulin
Source:
Journal of materials chemistry A 2022 v.10 no.15 pp. 8413-8423
ISSN:
2050-7496
Subject:
1-propanol; air; butanol; chemical composition; chemical species; coprecipitation; detection limit; electronic nose; isopropyl alcohol; zinc oxide
Abstract:
... Tracing the chemical composition of the surrounding environment appeals to the design of highly sensitive and selective gas sensors. Primarily driven by IoT, miniaturized multisensor systems, like e-noses, are considered to address both selectivity and sensitivity issues. Although e-noses might enable discrimination between close homologs and isomers, they are required to be “trained”, i.e. to pro ...
DOI:
10.1039/d1ta10589b

5. Heterostructured graphene oxide membranes with tunable water-capture coatings for highly selective water permeation

Author:
Zhiming Zhang; Hong Wu; Ying Li; Yue Liu; Chenliang Cao; Hongjian Wang; Meidi Wang; Fusheng Pan; Zhongyi Jiang
Source:
Journal of materials chemistry A 2021 v.9 no.12 pp. 7903-7912
ISSN:
2050-7496
Subject:
butanol; graphene oxide; permeability; synergism; tannins
Abstract:
... Graphene oxide (GO) laminar membranes with fast water-transport nanochannels hold great promise for water-selective molecular separations, but the water-capture ability of membrane surfaces limits the separation performance. Herein, we engineered water-capture coatings on GO laminar membranes using structurally tunable tannic acid (TA) nanoaggregates as building blocks via a bottom-up method, acqu ...
DOI:
10.1039/d1ta00090j

6. Surface functionalization of ZnO:Ag columnar thin films with AgAu and AgPt bimetallic alloy nanoparticles as an efficient pathway for highly sensitive gas discrimination and early hazard detection in batteries

Author:
Alexander Vahl; Oleg Lupan; David Santos-Carballal; Vasile Postica; Sandra Hansen; Heather Cavers; Niklas Wolff; Maik-Ivo Terasa; Mathias Hoppe; Abdelaziz Cadi-Essadek; Torben Dankwort; Lorenz Kienle; Nora H. de Leeuw; Rainer Adelung; Franz Faupel
Source:
Journal of materials chemistry A 2020 v.8 no.32 pp. 16246-16264
ISSN:
2050-7496
Subject:
acetone; adsorption; alloy nanoparticles; butanol; density functional theory; ethanol; films (materials); hydrogen; isopropyl alcohol; lithium; lithium batteries; methanol; monitoring; nanocomposites; platinum; silver; vapors; volatile organic compounds; zinc oxide
Abstract:
... For a fast and reliable monitoring of hazardous environments, the discrimination and detection of volatile organic compounds (VOCs) in the low ppm range is critically important, which requires the development of new chemical sensors. We report herein, a novel approach to tailor the selectivity of nanocomposite thin film sensors by investigating systematically the effect of surface decoration of Ag ...
DOI:
10.1039/d0ta03224g

7. Ultrapermeable graphene oxide membranes with tunable interlayer distances via vein-like supramolecular dendrimers

Author:
Yimeng Song; Run Li; Fusheng Pan; Ze He; Hao Yang; Ying Li; Leixin Yang; Meidi Wang; Hongjian Wang; Zhongyi Jiang
Source:
Journal of materials chemistry A 2019 v.7 no.31 pp. 18642-18652
ISSN:
2050-7496
Subject:
butanol; dendrimers; desalination; graphene oxide; molecular weight; nanosheets; permeability; seawater; sodium chloride
Abstract:
... Graphene oxide (GO) membranes display fascinating properties in molecular and ionic separation. The interlayer distance between adjacent GO nanosheets determines the separation efficiency. Currently, the interlayer distance is mostly tuned using small molecule or polymer crosslinkers, which often lead to a relatively low permeation flux due to the considerable channel occupancy. Inspired by the ve ...
DOI:
10.1039/c9ta05909a

8. “Induced-Fit Suction” effect: a booster for biofuel storage and separation

Author:
He Li; Fangyuan Guo; Jun Hu; Changjun Peng; Hualin Wang; Honglai Liu; Jing Li
Source:
Journal of materials chemistry A 2019 v.7 no.39 pp. 22353-22358
ISSN:
2050-7496
Subject:
adsorption; aqueous solutions; aromatic compounds; biofuels; butanol; chemical structure; deformation
Abstract:
... Target-response deformation has provided a wide variety of possibilities for selective molecular separation. In this report, both experimental and theoretical methods were used to demonstrate how fine-tuning the amphiphilicity of ZIF-7 can induce an alcohol-based target-response deformation. A step-by-step simulation of dynamic adsorption revealed that ZIF-7-NH₂ can successfully align alcohol mole ...
DOI:
10.1039/c9ta06723j

9. Highly catalytically active micro/meso-porous Ti-MCM-36 prepared by a grafting method

Author:
Chih-Cheng Chang; Jyh-Fu Lee; Soofin Cheng
Source:
Journal of materials chemistry A 2017 v.5 no.30 pp. 15676-15687
ISSN:
2050-7496
Subject:
X-ray absorption spectroscopy; X-ray diffraction; butanol; catalytic activity; crystallites; epoxidation reactions; ethanol; hydrogen peroxide; nitrogen; oxidants; oxidation; silicon; solvents; sorption isotherms; titanium; titanium dioxide; toluene; ultraviolet-visible spectroscopy
Abstract:
... The effect of titanium alkoxides and solvents in the preparation of Ti(iv)-incorporated micro/meso-porous MCM-36 (Ti-MCM-36) by a simple grafting method using different titanium alkoxides, including Ti(OEt)₄, Ti(OiPr)₄ and Ti(OBu)₄ in various solvents, including ethanol, 1-butanol, and toluene, was examined. The X-ray diffraction patterns and N₂ sorption isotherms confirmed the retention of the ba ...
DOI:
10.1039/c7ta01792h

10. Brookite TiO₂ decorated α-Fe₂O₃ nanoheterostructures with rod morphologies for gas sensor application

Author:
Yanshuang Wang; Shurong Wang; Hongxin Zhang; Xueling Gao; Jiedi Yang; Liwei Wang
Source:
Journal of materials chemistry A 2014 v.2 no.21 pp. 7935-7943
ISSN:
2050-7496
Subject:
acetone; ambient temperature; benzene; butanol; catalytic activity; ethanol; ferric oxide; lithium batteries; methanol; nanoparticles; nanorods; pollutants; surfactants; titanium dioxide; toluene; volatile organic compounds; wastewater treatment; xylene
Abstract:
... In this paper, brookite-TiO₂/α-Fe₂O₃ heterostructured nanorods were synthesized by a facile two-step solution approach without using any templates or surfactants. α-Fe₂O₃ nanorods were first successfully obtained via a simple solution method at room temperature. The α-Fe₂O₃ nanorods were further employed as supports to construct nanoheterostructures for gas sensor application. The gas sensor based ...
DOI:
10.1039/c4ta00163j

11. Metal–organic frameworks with a large breathing effect to host hydroxyl compounds for high anhydrous proton conductivity over a wide temperature range from subzero to 125 °C

Author:
Yingxiang Ye; Xiuzhen Wu; Zizhu Yao; Ling Wu; Zetao Cai; Lihua Wang; Xiuling Ma; Qian-Huo Chen; Zhangjing Zhang; Shengchang Xiang
Source:
Journal of materials chemistry A 2016 v.4 no.11 pp. 4062-4070
ISSN:
2050-7496
Subject:
activation energy; breathing; butanol; coordination polymers; fuel cells; hydroquinone; melting point; porous media; temperature; thermal stability; triazoles
Abstract:
... It is important but still challenging to develop high-performance proton conducting materials for proton exchange membrane fuel cells (PEMFCs), as such materials should meet the following requirements: stable proton-transport pathway over a wide temperature range, high conductivity at work temperature, and small activation energy Eₐ to maintain high conductivity at start temperature. Here, we firs ...
DOI:
10.1039/c5ta10765b

12. Solvothermal synthesis of ZnO-decorated α-Fe₂O₃ nanorods with highly enhanced gas-sensing performance toward n-butanol

Author:
Yusuf V. Kaneti; Quadir M. D. Zakaria; Zhengjie Zhang; Chuyang Chen; Jeffrey Yue; Minsu Liu; Xuchuan Jiang; Aibing Yu
Source:
Journal of materials chemistry A 2014 v.2 no.33 pp. 13283-13292
ISSN:
2050-7496
Subject:
autoclaves; butanol; chemistry; ferric oxide; iron; nanocomposites; nanoparticles; nanorods; temperature; urea; zinc oxide; zinc sulfate
Abstract:
... This paper reports a newly developed solvothermal strategy for the synthesis of ZnO-decorated α-Fe₂O₃ nanorods based on the reaction of α-Fe₂O₃ nanorods with zinc sulfate and urea in autoclaves at 180 °C. The resulting nanocomposites consist of porous α-Fe₂O₃ nanorods with diameters of 100–200 nm and a surface decorated with small ZnO nanoparticles (10–20 nm). The ZnO NPs are found to grow epitaxi ...
DOI:
10.1039/c4ta01837k

13. Tailoring hierarchically structured SiO₂ spheres for high pressure CO₂ adsorption

Author:
Maximilian W. Hahn; Matthias Steib; Andreas Jentys; Johannes A. Lercher
Source:
Journal of materials chemistry A 2014 v.2 no.33 pp. 13624-13634
ISSN:
2050-7496
Subject:
abrasion resistance; adsorption; aniline; benzyl alcohol; butanol; carbon dioxide; cations; coagulation; desorption; heat; hydrolysis; porous media; silica; solvents; sorbents; sorption isotherms; temperature; zeolites
Abstract:
... The synthesis, characterization, and experimental validation of hierarchically structured, millimeter-sized SiO₂ spheres with high CO₂ uptake capacities have been systematically explored. The solvents employed during synthesis (aniline, benzyl alcohol and butanol) of the silica structures from alkoxisilanes strongly influence the physicochemical properties by controlling hydrolysis and condensatio ...
DOI:
10.1039/c4ta02145b

14. Nanodisperse ZIF-8/PDMS hybrid membranes for biobutanol permselective pervaporation

Author:
Hongwei Fan; Naixin Wang; Shulan Ji; Hao Yan; Guojun Zhang
Source:
Journal of materials chemistry A 2014 v.2 no.48 pp. 20947-20957
ISSN:
2050-7496
Subject:
biobutanol; butanol; drying; nanoparticles; pervaporation; polymers
Abstract:
... Alcohol-permselective membranes may play an increasingly important role in bioalcohol production. Developments for this membrane mostly involve hybrid membranes. Obtaining high compatibility and nanodispersion of inorganic nanoparticles in the polymer matrix is the key to fabricating hybrid membranes with high pervaporation performance. In this study, a homogeneous, nanodisperse ZIF-8/PDMS membran ...
DOI:
10.1039/c4ta04114c

15. Synthesis of hierarchically porous silicas with mesophase transformations in a four-component microemulsion-type system and the catalytic performance for dibenzothiophene hydrodesulfurization

Author:
Xiaofeng Zhou; Aijun Duan; Zhen Zhao; Yanjun Gong; Huadong Wu; Jianmei Li; Yuechang Wei; Guiyuan Jiang; Jian Liu; Ying Zhang
Source:
Journal of materials chemistry A 2014 v.2 no.19 pp. 6823-6833
ISSN:
2050-7496
Subject:
adsorption; butanol; catalysts; catalytic activity; colloids; emulsions; foams; micelles; oils; phase transition; porous media; silica; surfactants
Abstract:
... Hierarchical porous materials especially the silica-based ones are undergoing rapid development due to potential applications in the fields of catalysis, adsorption, separation, and biomedical processes. Although various synthesis methods involving emulsions, colloids, and surfactants have been reported, synthesis of hierarchical porous silicas (HPS) with complex mesophase transformations by using ...
DOI:
10.1039/c3ta14859a

16. The templating effect of an easily available cationic polymer with widely separated charge centers on the synthesis of a hierarchical ZSM-5 zeolite

Author:
Yicheng Zhang; Kake Zhu; Xuezhi Duan; Xinggui Zhou; Weikang Yuan
Source:
Journal of materials chemistry A 2014 v.2 no.43 pp. 18666-18676
ISSN:
2050-7496
Subject:
benzaldehyde; butanol; catalytic activity; composite polymers; condensation reactions; cyclohexanones; methanol; nanocrystallites; polyamines; quaternary ammonium compounds; zeolites
Abstract:
... The epichlorohydrin-N,N-dimethyl-1,3-diaminopropane copolymer (PCA) has been introduced for the first time as a meso-template to successfully synthesize a hierarchical ZSM-5 zeolite (PCA-ZSM-5) with mesopores of 7–50 nm in diameter by using small-sized nanoblocks. However, when its structural analogue epichlorohydrin–dimethylamine polyamine (PCS) is used, the obtained ZSM-5 zeolite (PCS-ZSM-5) has ...
DOI:
10.1039/c4ta02325k

17. An impedimetric ammonia sensor based on nanostructured α-Fe₂O₃

Author:
Padmanathan Karthick Kannan; Ramiah Saraswathi
Source:
Journal of materials chemistry A 2013 v.2 no.2 pp. 394-401
ISSN:
2050-7496
Subject:
1-propanol; Fourier transform infrared spectroscopy; X-ray diffraction; acetone; ammonia; annealing; atomic force microscopy; butanol; capacitance; combustion; crystal structure; ethanol; ferric oxide; methanol; vapors
Abstract:
... An impedimetric sensor has been developed for the detection of ammonia vapour using a highly crystalline α-Fe₂O₃ synthesized by a solution combustion method. The as-prepared α-Fe₂O₃ requires annealing at 600 °C for 2 h to obtain high crystallinity and good purity. The material is characterized by XRD, FT-IR, SEM and AFM. AC impedance data reveal a systematic variation in charge transfer resistance ...
DOI:
10.1039/c3ta13553e

18. Cosurfactant-mediated microemulsion to free-standing hierarchical CuO arrays on copper substrates as anodes for lithium-ion batteries

Author:
Yingmeng Zhang; Weixin Zhang; Mei Li; Zeheng Yang; Gongde Chen; Qiang Wang
Source:
Journal of materials chemistry A 2013 v.1 no.45 pp. 14368-14374
ISSN:
2050-7496
Subject:
anodes; butanol; copper; copper hydroxide; cupric oxide; electrochemistry; emulsions; lithium batteries; micelles
Abstract:
... A cosurfactant-mediated microemulsion synthesis of free-standing CuO arrays with hierarchical micro-cog architectures on copper substrates has been successfully established. The CuO cog-array films directly employed as anode electrodes derive from thermal dehydration of Cu(OH)₂ arrays grown from copper substrates in the presence of AOT–n-butanol–isooctane–water microemulsions. Introducing n-butano ...
DOI:
10.1039/c3ta13018e