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 language | English |
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Pages (from-to) | 493-498 |
Number of pages | 6 |
Journal | Ceramic Engineering and Science Proceedings |
Volume | 25 |
Issue number | 3 |
State | Published - 2004 |
Event | 28th International Conference on Advanced Ceramics and Composites - Cocoa Beach, FL, United States Duration: Jan 25 2004 → Jan 30 2004 |