Electrode materials for mixed-potential NO x sensors

D. L. West, F. C. Montgomery, T. R. Armstrong

Research output: Contribution to journalConference articlepeer-review

8 Scopus citations

Abstract

The focus of this work is electrode materials for "mixed- potential" NO x sensing elements operating at temperatures near 650°C. Several different metal oxides, including Cr-containing spinels and La-containing perovskites, were evaluated as sensing electrode materials and La-containing perovskites were used as conducting materials in the place of Pt. Evaluations included sensing response as a function of temperature, the differing response to NO and NO 2, and the effect of varying O 2 concentration. Strong responses to NO 2 were observed in several instances, and the NO responses were typically weaker and opposite in sign.

Original languageEnglish
Pages (from-to)493-498
Number of pages6
JournalCeramic Engineering and Science Proceedings
Volume25
Issue number3
StatePublished - 2004
Event28th International Conference on Advanced Ceramics and Composites - Cocoa Beach, FL, United States
Duration: Jan 25 2004Jan 30 2004

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