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	Fabrication of a Highly Sensitive and Selective Ag-doped WO3 Formaldehyde Gas Sensor
	Wang X. M. ; Yu C. Q. ; Wu J. X. ; Zhang Y. D.
	2012
关键词	films
英文摘要	Ag-doped WO3 nanowhiskers have been successfully synthesized by a simple sol-gel treatment from the precursors W, H2O2, and AgNO3 at room temperature, followed by heat treatment at 400 degrees C for 1 h. The samples were characterized by X-ray diffraction (XRD), energy-dispersive spectrum (EDS), and scanning electron microscopy (SEM). Obtained results show that the obtained nanowhiskers width is ca. 200 nm with orthorhombic phase under different Ag-doped concentrations. Compared with the pure WO3-based sensor, all of the Ag-doped sensors showed better sensing performance in respect of sensitivity and selectivity. The sensor containing 3.0 mol % Ag exhibited the maximum sensitivity to formaldehyde vapor at 150 degrees C. A possible mechanism for the influence of Ag on the formaldehyde-sensing properties of Ag-doped WO3 sensors is proposed.
出处	Chemistry Letters
卷	41
期	6
页	595-596
收录类别	SCI
语种	英语
ISSN号	0366-7022
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/26763]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Wang X. M.,Yu C. Q.,Wu J. X.,et al. Fabrication of a Highly Sensitive and Selective Ag-doped WO3 Formaldehyde Gas Sensor. 2012.

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