Metal Oxide Gas Sensors: Sensitivity and Influencing Factors

Clicks: 252
ID: 113577
2010
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Abstract
Conductometric semiconducting metal oxide gas sensors have been widely used and investigated in the detection of gases. Investigations have indicated that the gas sensing process is strongly related to surface reactions, so one of the important parameters of gas sensors, the sensitivity of the metal oxide based materials, will change with the factors influencing the surface reactions, such as chemical components, surface-modification and microstructures of sensing layers, temperature and humidity. In this brief review, attention will be focused on changes of sensitivity of conductometric semiconducting metal oxide gas sensors due to the five factors mentioned above.
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Authors Chengxiang Wang;Longwei Yin;Luyuan Zhang;Dong Xiang;Rui Gao;Wang, Chengxiang;Yin, Longwei;Zhang, Luyuan;Xiang, Dong;Gao, Rui;
Journal sensors
Year 2010
DOI
10.3390/s100302088
URL
https://www.mdpi.com/1424-8220/10/3/2088
Keywords
gas sensors sensitivity metal oxide surface reaction National Center for Biotechnology Information NCBI NLM MEDLINE review pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't particle size Temperature oxides / chemistry* pmid:22294916 pmc3264469 doi:10.3390/s100302088 chengxiang wang longwei yin rui gao gases / analysis* metals / chemistry*

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