DC electrical-biased, all-oxide NOx sensing elements for use at 873 K

David West, Frederick Montgomery, Timothy Armstrong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

All-oxide NOx sensing elements based on a solid electrolyte are reported. During operation, a DC current or voltage is applied to the element, and the resultant voltage or current is used as a sensing signal. The elements are nearly "total NOx", with responses to NO and NÜ2 of the same algebraic sign and similar magnitude. For example, 77 ppm NO produces a voltage change of-37% and 77 pprny NO2 a change of-40% for a current-biased element at 873 K and 7 vol% O2- The elements display an [O2] sensitivity that is a decreasing function of [NO x and their DC electrical resistance varies exponentially with temperature. These sensing elements could find application in sensors for measuring [NOx at temperatures near 900 K.

Original languageEnglish
Title of host publicationAdvances in Electronic Ceramic Materials. A Collection of papers Presented at the 29th International Conference on Advanced Ceramics and Composites
PublisherAmerican Ceramic Society
Pages49-56
Number of pages8
Edition5
ISBN (Print)9781119040439
DOIs
StatePublished - 2005
Event29th International Conference on Advanced Ceramics and Composites - Cocoa Beach, FL, United States
Duration: Jan 23 2005Jan 28 2005

Publication series

NameCeramic Engineering and Science Proceedings
Number5
Volume26
ISSN (Print)0196-6219

Conference

Conference29th International Conference on Advanced Ceramics and Composites
Country/TerritoryUnited States
CityCocoa Beach, FL
Period01/23/0501/28/05

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