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Gas sensitive materials for gas detection and method of making

United States Patent

December 25, 2012
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A gas sensitive material comprising SnO2 nanocrystals doped with In2O3 and an oxide of a platinum group metal, and a method of making the same. The platinum group metal is preferably Pd, but also may include Pt, Ru, Ir, and combinations thereof. The SnO2 nanocrystals have a specific surface of 7 or greater, preferably about 20 m2/g, and a mean particle size of between about 10 nm and about 100 nm, preferably about 40 nm. A gas detection device made from the gas sensitive material deposited on a substrate, the gas sensitive material configured as a part of a current measuring circuit in communication with a heat source.
Trakhtenberg; Leonid Israilevich (Moscow, RU), Gerasimov; Genrikh Nikolaevich (Moscow, RU), Gromov; Vladimir Fedorovich (Moscow, RU), Rozenberg; Valeriya Isaakovna (Moscow, RU)
12/ 440,272
September 7, 2006
The invention was made with Government support under Contract DE-AC0676RLO 1830, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.