Zirconia-based potentiometric sensor using a pair of oxide electrodes for selective detection of carbon monoxide

Journal Article · Tue Jul 01 04:00:00 EDT 1997 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1837798· OSTI ID:533103

Miura, Norio; Raisen, Takahisa; Lu, Geyu; Yamazoe, Noboru ^[1]

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1. Kyushu Univ., Kasuga, Fukuoka (Japan). Dept. of Materials Science and Technology

A high-performance solid-state compact gas sensor to detect CO has been needed for monitoring and controlling the combustion condition of gas appliances. By using a pair of oxide electrodes, a stabilized-zirconia-based sensor was developed for selective detection of CO at high temperature. Among the oxide pair examined, the combination of CdO and SnO{sub 2} was best suited for the electrode couple, giving quick and selective response to CO in air at 600 C. The 90% response and the 90% recovery times of the sensor to 200 ppm CO was as short as ca. 8 and 10 s, respectively, at 600 C. The EMF value was linearly related with the logarithm of CO concentration in the range of 20 to 4,000 ppm. Moreover, the cross-sensitivities to other gases, such as H{sub 2}, NO, NO{sub 2}, CO{sub 2}, O{sub 2}, and H{sub 2}O, were small or insignificant.

• Sponsoring Organization: USDOE
• OSTI ID: 533103
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 7 Vol. 144; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIR POLLUTION MONITORS
CADMIUM OXIDES
CARBON MONOXIDE
GAS APPLIANCES
INDOOR AIR POLLUTION
POTENTIOMETRY
TIN OXIDES