Material having ultrafine gold particles immobilized thereon and

Details Material having ultrafine gold particles immobilized thereon and Material having ultrafine gold particles immobilized thereon and

1996-11-05

1998-08-04

Griffin, Walter D.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502325, 502330, 502416, 502216, B01J 2352, B01J 2704

Patent

active

057893373

ABSTRACT:
A material having ultrafine gold particles immobilized thereon consists essentially of at least one support selected from the group consisting of metal oxides, metal sulfides, and carbonaceous substances and ultrafine gold particles having a maximum particle diameter of 250 angstroms and deposited on the support with strong interaction. The material exhibits high activity as a catalyst for the oxidation of carbon monoxide to carbon dioxide. It is produced by causing a vaporized organic gold complex to contact at least one support selected from the group consisting of metal oxides, metal sulfides, and carbonaceous substances in an atmosphere of reduced pressure thereby inducing adsorption of the vapor of organic gold complex on the support and then heating the product of the adsorption to a temperature in the range of 100.degree.-700.degree. C.

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Chemical Abstracts (109:72971 CA) "Reaction of a supported gold catalyst for acetylene hydrochlorination". Nkosi et al., 1988 no month.

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