Ceria-electrolyte-based mixed potential sensors for the detection of hydrocarbons and carbon monoxide

Authors
Mukundan, R Brosha, EL Brown, DR Garzon, FH
Citation
R. Mukundan et al., Ceria-electrolyte-based mixed potential sensors for the detection of hydrocarbons and carbon monoxide, EL SOLID ST, 2(8), 1999, pp. 412-414
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ELECTROCHEMICAL AND SOLID STATE LETTERS
ISSN journal
10990062 → ACNP
Volume
2
Issue
8
Year of publication
1999
Pages
412 - 414
Database
ISI
SICI code
1099-0062(199908)2:8<412:CMPSFT>2.0.ZU;2-M
Abstract
Mixed potential sensors based on zirconia electrolytes have been extensivel y investigated for the detection of CO and hydrocarbons in oxygen-containin g streams. In this paper, the response of a Pt/Ce0.8Gd0.2O1.9/Au sensor ope rating at 600 degrees C is reported for the first time and is compared to t hat of a Pt/stabilized zirconia (yttria-stabilized, YSZ)/Au sensor. The res ponse of the ceria-electrolyte sensor was more stable and reproducible than that of the zirconia-electrolyte sensor. This difference in response has b een attributed to an improvement in the oxygen reduction kinetics of the go ld electrode on the ceria electrolyte. (C) 1999 The Electrochemical Society . S1099-0062(99)02-069-6. All rights reserved.