Oxidizing catalysts, carbon monoxide sensor, and hydrogen...

Details Oxidizing catalysts, carbon monoxide sensor, and hydrogen... Oxidizing catalysts, carbon monoxide sensor, and hydrogen...

B - Operations, Transporting

01

J

B01J 23/656 (2006.01) B01J 23/89 (2006.01) B01J 37/02 (2006.01) C01B 3/58 (2006.01) G01N 27/16 (2006.01) H01M 8/06 (2006.01) B01J 37/34 (2006.01) G01N 31/10 (2006.01)

Patent

CA 2353759

The present invention provides a catalyst selectively oxidizing carbon monoxide in a mixed gas comprising carbon monoxide and hydrogen as well as a catalyst selectively oxi- dizing hydrogen. A catalyst selectively oxidizing carbon monoxide is obtained by dispersing platinum black on a surface of a base metal compound oxide including Co2o3, MnO2, CuO, and Cr2O3, and forming an Ag2O layer on the platinum black layer. The catalyst selectively oxidizing hydrogen in a mixed gas comprising carbon monoxide and hydrogen is obtained by dispersing Ag2O on a surface of said base metal compound oxide and further forming a platinum black layer on the Ag2O layer. In addition the present invention provides a contact combustion carbon monoxide sensor not having the sensitivity to hydrogen as well as that not having the sensitivity to carbon monoxide.

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