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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

1
Shanghai Applied Radiation Institute, Shanghai University, Shanghai 201800, P.R. China
2
Department of Automation, University of Science and Technology of China, Hefei 230026, P.R. China
3
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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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. View Full-Text
Keywords: Gas sensor; CO2 sensor; Solid ion electrolyte; Sensitivity; Doping Gas sensor; CO2 sensor; Solid ion electrolyte; Sensitivity; Doping
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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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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