CO[sub 2] Sensor Based on the Combination of Trivalent Sc[sup 3+] Ion-Conducting Sc[sub 2](WO[sub 4])[sub 3] and O[sup 2−] Ion-Conducting Stabilized Zirconia Solid Electrolytes

1 January 1999

journal article
Published by The Electrochemical Society in Electrochemical and Solid-State Letters

Vol. 2 (11) , 602-604
https://doi.org/10.1149/1.1390920

Abstract

A compact carbon dioxide gas sensor was fabricated using a trivalent ion‐conducting solid electrolyte and an oxide anion conducting stabilized zirconia. The time necessary to attain a 90% response for the detection was within . The output response was exactly equal to the Nernstian equation and the 1:1 linear relationship was obtained between the sensor output and the logarithm of the carbon dioxide gas content. A quantitative gas monitoring was successfully realized with a rapid, continuous, and reproducible response. ©1999 The Electrochemical Society

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