In situ sulfur-doped mesoporous tungsten oxides for gas sensing toward benzene series

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外文摘要：Benzene series as highly toxic gases have inevitably entered human life and produce great threat to hu-man health and ecological environment,and thus it is distinctly meaningful to monitor benzene series with quickly,real-time and efficient technique.Herein,novel sulfur-doped mesoporous WO3 materials were synthesized via classical in-situ solvent evaporation induced co-assembly strategy combined with doping engineering,which possessed highly crystallized frameworks,high specific surface area(40.9-63.8 m2/g)and uniform pore size(∼18nm).Benefitting from abundant oxygen vacancy and defects via S-doping,the tailored mesoporous S/mWO3 exhibited excellent benzene sensing performance,including high sensitivity(50 ppm vs.48),low detection limit(ca.500 ppb),outstanding selectivity and favorable stability.In addition,the reduction of band gap resulted from S-doping promotes the carrier migration in the sensing materials and the reaction at the gas-solid sensing interfaces.It provides brand-new ap-proach to design sensitive materials with multiple reaction sites.

外文关键词：

Mesoporous materialsBenzene seriesTungsten oxidesSulfur dopingGas sensor

作者：

Yu Deng、Yan Liu、Yonghui Deng、Jinsheng Cheng、Yidong Zou、Wei Luo

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作者单位：

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China

Department of Chemistry,State Key Laboratory of Molecular Engineering of Polymers,Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,iChEM,Fudan University,Shanghai 200433,China

State Key Lab of Transducer Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,Chin

Henry-Fork School of Food Sciences,Shaoguan University,Shaoguan 512005,China

Department of Polymeric Materials,School of Materials Science and Engineering,Tongji University,Shanghai 201804,China

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基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaKey Basic Research Program of Science and Technology Commission of Shanghai Municipalitystate key laboratory of Transducer Technology of ChinaFundamental Research Funds for the Central Universities

项目编号：

22125501U22A2015222105043522252045217323320JC1415300SKT220720720220010

出版年：

2024

DOI：

10.1016/j.cclet.2023.108898

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCD

影响因子：0.771

ISSN：1001-8417

年,卷(期)：2024.35(7)