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	Preparation of tungsten oxide nanoplate thin film and its gas sensing properties
	Chen, Qiulan; Lai, Xi; Yan, Menglong; Tang, Guanrong; Luo, Jianyi; Chen, Jian; Xie, Weiguang
	2013
会议名称	2013 International Forum on Mechanical and Material Engineering, IFMME 2013
会议地点	Guangzhou, PEOPLES R CHINA
英文摘要	Tungsten oxide is a kind of multifunctional materials with excellent properties for gas sensing, electrochromic and photocatalytic applications. In this study,Tungsten oxide nanoplate thin film was prepared by hydrothermal methods. The as-prepared thin film is composed of tungsten trioxide hydrate nanoplates, which are randomly orientate on the surface. The as-grown nanoplate thin film shows good sensitivity to H-2 gas. Dehydration and phase transition to gamma-phase tungsten trioxide were found after annealing, and the sensitivity as well as the response time to H-2 were improved. We found that the nanoplate in the annealing sample bursts, which raises the surface -to-volume ratio for better hydrogen diffusion and reaction. The sensing mechanism was discussed. The findings provide a way to control the structure and surface morphology for improving the H-2 sensing properties of tungsten oxide.
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/5318]
专题	深圳先进技术研究院_南沙所
作者单位	2013
推荐引用方式 GB/T 7714	Chen, Qiulan,Lai, Xi,Yan, Menglong,et al. Preparation of tungsten oxide nanoplate thin film and its gas sensing properties[C]. 见:2013 International Forum on Mechanical and Material Engineering, IFMME 2013. Guangzhou, PEOPLES R CHINA.

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