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Mesoporous WO(3) Nanofibers With Crystalline Framework for High-Performance Acetone Sensing
Semiconducting metal oxides with abundant active sites are regarded as promising candidates for environmental monitoring and breath analysis because of their excellent gas sensing performance and stability. Herein, mesoporous WO(3) nanofibers with a crystalline framework and uniform pore size is suc...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6482242/ https://www.ncbi.nlm.nih.gov/pubmed/31058141 http://dx.doi.org/10.3389/fchem.2019.00266 |
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author | Xu, Haiyun Gao, Jie Li, Minhan Zhao, Yuye Zhang, Ming Zhao, Tao Wang, Lianjun Jiang, Wan Zhu, Guanjia Qian, Xiaoyong Fan, Yuchi Yang, Jianping Luo, Wei |
author_facet | Xu, Haiyun Gao, Jie Li, Minhan Zhao, Yuye Zhang, Ming Zhao, Tao Wang, Lianjun Jiang, Wan Zhu, Guanjia Qian, Xiaoyong Fan, Yuchi Yang, Jianping Luo, Wei |
author_sort | Xu, Haiyun |
collection | PubMed |
description | Semiconducting metal oxides with abundant active sites are regarded as promising candidates for environmental monitoring and breath analysis because of their excellent gas sensing performance and stability. Herein, mesoporous WO(3) nanofibers with a crystalline framework and uniform pore size is successfully synthesized in an aqueous phase using an electrospinning method, with ammonium metatungstate as the tungsten sources, and SiO(2) nanoparticles and polyvinylpyrrolidone as the sacrificial templates. The obtained mesoporous WO(3) nanofibers exhibit a controllable pore size of 26.3–42.2 nm, specific surface area of 24.1–34.4 m(2)g(−1), and a pore volume of 0.15–0.24 cm(3)g(−1). This unique hierarchical structure, with uniform mesopores and interconnected channels, could facilitate the diffusion and transportation of gas molecules in the framework. Gas sensors, based on mesoporous WO(3) nanofibers, exhibit an excellent performance in acetone sensing with a low limit of detection (<1 ppm), short response-recovery time (24 s/27 s), a linear relationship in a broad range, and good selectivity. |
format | Online Article Text |
id | pubmed-6482242 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-64822422019-05-03 Mesoporous WO(3) Nanofibers With Crystalline Framework for High-Performance Acetone Sensing Xu, Haiyun Gao, Jie Li, Minhan Zhao, Yuye Zhang, Ming Zhao, Tao Wang, Lianjun Jiang, Wan Zhu, Guanjia Qian, Xiaoyong Fan, Yuchi Yang, Jianping Luo, Wei Front Chem Chemistry Semiconducting metal oxides with abundant active sites are regarded as promising candidates for environmental monitoring and breath analysis because of their excellent gas sensing performance and stability. Herein, mesoporous WO(3) nanofibers with a crystalline framework and uniform pore size is successfully synthesized in an aqueous phase using an electrospinning method, with ammonium metatungstate as the tungsten sources, and SiO(2) nanoparticles and polyvinylpyrrolidone as the sacrificial templates. The obtained mesoporous WO(3) nanofibers exhibit a controllable pore size of 26.3–42.2 nm, specific surface area of 24.1–34.4 m(2)g(−1), and a pore volume of 0.15–0.24 cm(3)g(−1). This unique hierarchical structure, with uniform mesopores and interconnected channels, could facilitate the diffusion and transportation of gas molecules in the framework. Gas sensors, based on mesoporous WO(3) nanofibers, exhibit an excellent performance in acetone sensing with a low limit of detection (<1 ppm), short response-recovery time (24 s/27 s), a linear relationship in a broad range, and good selectivity. Frontiers Media S.A. 2019-04-18 /pmc/articles/PMC6482242/ /pubmed/31058141 http://dx.doi.org/10.3389/fchem.2019.00266 Text en Copyright © 2019 Xu, Gao, Li, Zhao, Zhang, Zhao, Wang, Jiang, Zhu, Qian, Fan, Yang and Luo. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Xu, Haiyun Gao, Jie Li, Minhan Zhao, Yuye Zhang, Ming Zhao, Tao Wang, Lianjun Jiang, Wan Zhu, Guanjia Qian, Xiaoyong Fan, Yuchi Yang, Jianping Luo, Wei Mesoporous WO(3) Nanofibers With Crystalline Framework for High-Performance Acetone Sensing |
title | Mesoporous WO(3) Nanofibers With Crystalline Framework for High-Performance Acetone Sensing |
title_full | Mesoporous WO(3) Nanofibers With Crystalline Framework for High-Performance Acetone Sensing |
title_fullStr | Mesoporous WO(3) Nanofibers With Crystalline Framework for High-Performance Acetone Sensing |
title_full_unstemmed | Mesoporous WO(3) Nanofibers With Crystalline Framework for High-Performance Acetone Sensing |
title_short | Mesoporous WO(3) Nanofibers With Crystalline Framework for High-Performance Acetone Sensing |
title_sort | mesoporous wo(3) nanofibers with crystalline framework for high-performance acetone sensing |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6482242/ https://www.ncbi.nlm.nih.gov/pubmed/31058141 http://dx.doi.org/10.3389/fchem.2019.00266 |
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