reviewSensorsMar 15, 2010GOLD OA

Metal Oxide Gas Sensors: Sensitivity and Influencing Factors

CWCheng‐Xiang WangLYLongwei YinLZLuyuan ZhangDXDong XiangRGRui Gao

Shandong University

PubMed
Indexed incrossrefdoajpubmed

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.

Citation impact

2,814
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FWCI
46.48
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100%
References
82
Citations per year

Authors

5

Topics & keywords

Topics
Keywords
  • Oxide
  • Materials science
  • Metal
  • Sensitivity (control systems)
  • Humidity
  • Nanotechnology
  • Inorganic chemistry
  • Chemical engineering
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