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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
Abstract: 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.
Keywords: 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.
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(9):366-373.
Jiao, Zheng; Chen, Feng; Su, Run; Huang, Xingjiu; Liu, Wei; Liu, Jinhuai. 2002. "Study on the Characteristics of Ag Doped CuO-BaTiO3 CO2 Sensors." Sensors 2, no. 9: 366-373.