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Sensors 2002, 2(9), 366-373; doi:10.3390/s20900366

Study on the Characteristics of Ag Doped CuO-BaTiO3 CO2 Sensors

Shanghai Applied Radiation Institute, Shanghai University, Shanghai 201800, P.R. China
Department of Automation, University of Science and Technology of China, Hefei 230026, P.R. China
Hefei Institute of Intelligent Machines, Chinese Academy of Science, Hefei 230031, P.R. China
Author to whom correspondence should be addressed.
Received: 29 July 2002 / Accepted: 1 September 2002 / Published: 17 September 2002
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In this paper the characteristics of a CuO-BaTiO3 based CO2 gas sensor was investigated. The sensitivity of the CuO-BaTiO3 based CO2 sensor was influenced by doping various metal elements such as Au, Ag, Pt, Pd, Ce, Mg, Sr, La, Zn, Fe and Bi, which were added as a pure metal or in the form of metal oxides. It was found that Ag is the most suitable additive among all substances tested. The Ag-doped CO2 gas sensor has better sensitivity and lower operating temperature, with a detection concentration range of from 100 ppm to 10%. The sensor also shows good stability. View Full-Text
Keywords: Gas sensor; CO2 sensor; Solid ion electrolyte; Sensitivity; Doping Gas sensor; CO2 sensor; Solid ion electrolyte; Sensitivity; Doping

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MDPI and ACS Style

Jiao, Z.; Chen, F.; Su, R.; Huang, X.; Liu, W.; Liu, J. Study on the Characteristics of Ag Doped CuO-BaTiO3 CO2 Sensors. Sensors 2002, 2, 366-373.

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