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One-Dimensional Zinc Oxide Decorated Cobalt Oxide Nanospheres for Enhanced Gas-Sensing Properties

In this study, one-dimensional (1D) zinc oxide was loaded on the surface of cobalt oxide microspheres, which were assembled by single-crystalline porous nanosheets, via a simple heteroepitaxial growth process. This elaborate structure possessed an excellent transducer function from the single-crysta...

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Autores principales: Zhou, Hang, Xu, Keng, Yang, Yong, Yu, Ting, Yuan, Cailei, Wei, Wenyan, Sun, Yue, Lu, Wenhui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6304346/
https://www.ncbi.nlm.nih.gov/pubmed/30619834
http://dx.doi.org/10.3389/fchem.2018.00628
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author Zhou, Hang
Xu, Keng
Yang, Yong
Yu, Ting
Yuan, Cailei
Wei, Wenyan
Sun, Yue
Lu, Wenhui
author_facet Zhou, Hang
Xu, Keng
Yang, Yong
Yu, Ting
Yuan, Cailei
Wei, Wenyan
Sun, Yue
Lu, Wenhui
author_sort Zhou, Hang
collection PubMed
description In this study, one-dimensional (1D) zinc oxide was loaded on the surface of cobalt oxide microspheres, which were assembled by single-crystalline porous nanosheets, via a simple heteroepitaxial growth process. This elaborate structure possessed an excellent transducer function from the single-crystalline feature of Co(3)O(4) nanosheets and the receptor function from the zinc oxide nanorods. The structure of the as-prepared hybrid was confirmed via a Scanning Electron Microscope (SEM), X-ray diffraction (XRD), and a Transmission Electron Microscope (TEM). Gas-sensing tests showed that the gas-sensing properties of the as-designed hybrid were largely improved. The response was about 161 (R(a)/R(g)) to 100 ppm ethanol, which is 110 and 10 times higher than that of Co(3)O(4) (R(g)/R(a) = 1.47) and ZnO (R(a)/R(g) = 15), respectively. And the as-designed ZnO/Co(3)O(4) hybrid also showed a high selectivity to ethanol. The superior gas-sensing properties were mainly attributed to the as-designed nanostructures that contained a super transducer function and a super receptor function. The design strategy for gas-sensing materials in this work shed a new light on the exploration of high-performance gas sensors.
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spelling pubmed-63043462019-01-07 One-Dimensional Zinc Oxide Decorated Cobalt Oxide Nanospheres for Enhanced Gas-Sensing Properties Zhou, Hang Xu, Keng Yang, Yong Yu, Ting Yuan, Cailei Wei, Wenyan Sun, Yue Lu, Wenhui Front Chem Chemistry In this study, one-dimensional (1D) zinc oxide was loaded on the surface of cobalt oxide microspheres, which were assembled by single-crystalline porous nanosheets, via a simple heteroepitaxial growth process. This elaborate structure possessed an excellent transducer function from the single-crystalline feature of Co(3)O(4) nanosheets and the receptor function from the zinc oxide nanorods. The structure of the as-prepared hybrid was confirmed via a Scanning Electron Microscope (SEM), X-ray diffraction (XRD), and a Transmission Electron Microscope (TEM). Gas-sensing tests showed that the gas-sensing properties of the as-designed hybrid were largely improved. The response was about 161 (R(a)/R(g)) to 100 ppm ethanol, which is 110 and 10 times higher than that of Co(3)O(4) (R(g)/R(a) = 1.47) and ZnO (R(a)/R(g) = 15), respectively. And the as-designed ZnO/Co(3)O(4) hybrid also showed a high selectivity to ethanol. The superior gas-sensing properties were mainly attributed to the as-designed nanostructures that contained a super transducer function and a super receptor function. The design strategy for gas-sensing materials in this work shed a new light on the exploration of high-performance gas sensors. Frontiers Media S.A. 2018-12-17 /pmc/articles/PMC6304346/ /pubmed/30619834 http://dx.doi.org/10.3389/fchem.2018.00628 Text en Copyright © 2018 Zhou, Xu, Yang, Yu, Yuan, Wei, Sun and Lu. 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
Zhou, Hang
Xu, Keng
Yang, Yong
Yu, Ting
Yuan, Cailei
Wei, Wenyan
Sun, Yue
Lu, Wenhui
One-Dimensional Zinc Oxide Decorated Cobalt Oxide Nanospheres for Enhanced Gas-Sensing Properties
title One-Dimensional Zinc Oxide Decorated Cobalt Oxide Nanospheres for Enhanced Gas-Sensing Properties
title_full One-Dimensional Zinc Oxide Decorated Cobalt Oxide Nanospheres for Enhanced Gas-Sensing Properties
title_fullStr One-Dimensional Zinc Oxide Decorated Cobalt Oxide Nanospheres for Enhanced Gas-Sensing Properties
title_full_unstemmed One-Dimensional Zinc Oxide Decorated Cobalt Oxide Nanospheres for Enhanced Gas-Sensing Properties
title_short One-Dimensional Zinc Oxide Decorated Cobalt Oxide Nanospheres for Enhanced Gas-Sensing Properties
title_sort one-dimensional zinc oxide decorated cobalt oxide nanospheres for enhanced gas-sensing properties
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6304346/
https://www.ncbi.nlm.nih.gov/pubmed/30619834
http://dx.doi.org/10.3389/fchem.2018.00628
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