ZnO-Pd composite catalyst and production method thereof

Details ZnO-Pd composite catalyst and production method thereof ZnO-Pd composite catalyst and production method thereof

1997-08-13

2000-08-08

Langel, Wayne

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

423230, 42324401, 42324402, 423247, 4234372, 502329, C01B 3120

Patent

active

060996951

ABSTRACT:
A ZnO--Pd composite catalyst wherein Pd is dispersed and fixed on the surface of ZnO is produced by ion adsorption process having the steps of soaking ZnO in an acid solution of Pd to adsorb Pd ions (Pd.sup.2+) onto the surface of ZnO; and reducing the adsorbed Pd ions to metallic Pd particles so that the metallic Pd particles are substantially evenly deposited on the surface of ZnO. The ZnO--Pd composite catalyst provides a stable and continuing CO oxidizing capability, without light irradiation, even when the air to be treated contains sulfur compounds such as H.sub.2 S and SOx.

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patent: 5665223 (1997-09-01), Bogdan

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