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Sensors (Basel)


Title:Selective Detection of Formaldehyde Gas Using a Cd-Doped TiO(2)-SnO(2) Sensor
Author(s):Zeng W; Liu T; Wang Z; Tsukimoto S; Saito M; Ikuhara Y;
Address:"College of Materials Science and Engineering, Chongqing University, Chongqing 400044, P. R. China; E-Mail: zeng_wen1982@yahoo.com.cn"
Journal Title:Sensors (Basel)
Year:2009
Volume:20091113
Issue:11
Page Number:9029 - 9038
DOI: 10.3390/s91109029
ISSN/ISBN:1424-8220 (Print) 1424-8220 (Electronic) 1424-8220 (Linking)
Abstract:"We report the microstructure and gas-sensing properties of a nonequilibrium TiO(2)-SnO(2) solid solution prepared by the sol-gel method. In particular, we focus on the effect of Cd doping on the sensing behavior of the TiO(2)-SnO(2) sensor. Of all volatile organic compound gases examined, the sensor with Cd doping exhibits exclusive selectivity as well as high sensitivity to formaldehyde, a main harmful indoor gas. The key gas-sensing quantities, maximum sensitivity, optimal working temperature, and response and recovery time, are found to meet the basic industrial needs. This makes the Cd-doped TiO(2)-SnO(2) composite a promising sensor material for detecting the formaldehyde gas"
Keywords:Cd doping TiO2-SnO2 formaldehyde gas sensor volatile organic compound;
Notes:"PubMed-not-MEDLINEZeng, Wen Liu, Tianmo Wang, Zhongchang Tsukimoto, Susumu Saito, Mitsuhiro Ikuhara, Yuichi eng Switzerland 2009/01/01 Sensors (Basel). 2009; 9(11):9029-38. doi: 10.3390/s91109029. Epub 2009 Nov 13"

 
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