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.
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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.