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Electrocatalytic cermet sensor

United States Patent

5,772,863
June 30, 1998
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A sensor for O.sub.2 and CO.sub.2 gases. The gas sensor includes a plurality of layers driven by a cyclic voltage to generate a unique plot characteristic of the gas in contact with the sensor. The plurality of layers includes an alumina substrate, a reference electrode source of anions, a lower electrical reference electrode of Pt coupled to the reference source of anions, a solid electrolyte containing tungsten and coupled to the lower reference electrode, a buffer layer for preventing flow of Pt ions into the solid electrolyte and an upper catalytically active Pt electrode coupled to the buffer layer.
Shoemaker; Erika L. (Westmont, IL), Vogt; Michael C. (Westmont, IL)
University of Chicago (Chicago, IL)
08/ 641,979
May 1, 1996
This invention was made with U.S. Government support under Contract No. W-31-109-ENG38 between the U.S. Department of Energy and the University of Chicago, and the U.S. Government has certain rights in this invention.