A comparative study of the gas sensing properties of hierarchical ZnO nanostructures

被引：0
作者：
Capochichi-Gnambodoe M. [1 ]
Habba Y.G. [1 ]
Leprince-Wang Y. [1 ]
机构：
[1] Université Paris-Est, ESYCOM (EA 2552), UPEM, 5 bd. Descartes, Marne-la-Vallée
来源：
Physica Status Solidi (C) Current Topics in Solid State Physics | 2016年 / 13卷 / 7-9期
关键词：
gas sensing; hierarchical nanostructure; ZnO nanowires;
D O I：
10.1002/pssc.201510301
中图分类号：
学科分类号：
摘要：
Two types of ZnO nanostructure have been fabricated to make a comparative study on their gas sensing performance: the conventional ZnO nanowire arrays were synthesized by hydrothermal method and the hierarchical ZnO nanowires/nanofibers nanostructures were prepared through a combination of the hydrothermal and electrospinning methods. Field emission scanning electron microscopy study showed a quiet homogeneous morphology both for both nanostructures. Three kinds of commonly used gases, such as ethanol, acetone and ammonia were chosen for ZnO nanostructure gas sensing property study. The UV-Visible spectroscopy measurements showed a higher detection sensitivity of ZnO NWs for ammonia compared to ethanol and acetone, and an enhanced sensing performance for the hierarchical nano- structure, which has a higher surface to volume ratio. On the other hand, the enhancement was more obviously in the case of ethanol sensing. (© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim). Copyright © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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页码：688 / 692
页数：4
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