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	Preparation and carbon monoxide sensing properties of tungsten trioxide nanowires
	Xu Yuxing ; Tang Zilong ; Zhang Zhongtai
	2010-10-12 ; 2010-10-12
关键词	Practical Experimental/ carbon compounds gas sensors nanofabrication nanosensors nanowires scanning electron microscopy transmission electron microscopy tungsten compounds X-ray diffraction X-ray photoelectron spectra/ carbon monoxide gas sensing properties hexagonal tungsten trioxide nanowires simple hydrothermal method X-ray diffraction scanning electron microscopy transmission electron microscopy X-ray photoelectron spectroscopy Brunauer-Emmett-Teller methods temperature 200 C to 350 C WO/sub 3/ CO/ A8280T Chemical sensors A8116 Methods of nanofabrication and processing A6865 Low-dimensional structures: growth, structure and nonelectronic properties A6146 Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials A7960E Photoelectron spectra of semiconductors and insulators A0710C Micromechanical and nanomechanical devices and systems B7230L Chemical sensors B7320T Chemical variables measurement B7230M Microsensors and nanosensors/ temperature 4.7315E+02 to 6.2315E+02 K/ WO3/bin O3/bin O/bin W/bin CO/bin C/bin O/bin
中文摘要	Hexagonal tungsten trioxide nanowires were prepared successfully by a simple hydrothermal method, and the properties of the products were characterized by the X-ray diffraction, scanning electron microscope, transmission electron microscope, X-ray photoelectron spectroscopy, and Brunauer-Emmett-Teller (BET) methods. The effects of reaction time on structures, morphologies and BET surface areas of the products were investigated in detail. A new application of their CO gas sensing properties at low concentrations ((1-100) x 10/sup -6/) was investigated. The obtained hexagonal tungsten trioxide nanowires exhibited the maximum CO gas response at 350 degrees C, and the sensitivity (R/sub air//R/sub gas/) was 4.8 for 5 x 10/sup -6/ CO (R/sub air/, resistance in air; R/sub gas/, resistance in a sample gas). The magnitude of the sensitivities increased almost linearly with increasing the operating temperature from 200 degrees C to 350 degrees C.
语种	中文
出版者	Chinese Ceramic Society ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78439]
专题	清华大学
推荐引用方式 GB/T 7714	Xu Yuxing,Tang Zilong,Zhang Zhongtai. Preparation and carbon monoxide sensing properties of tungsten trioxide nanowires[J],2010, 2010.
APA	Xu Yuxing,Tang Zilong,&Zhang Zhongtai.(2010).Preparation and carbon monoxide sensing properties of tungsten trioxide nanowires..
MLA	Xu Yuxing,et al."Preparation and carbon monoxide sensing properties of tungsten trioxide nanowires".(2010).

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