Bimetallic catalyst
AssigneeJohnson Matthey Public Limited Company
InventorsJanet Mary FISHER, David THOMPSETT
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Abstract
An emission control catalyst composition comprising a supported bimetallic catalyst consisting of gold and a metal selected from the group consisting of platinum, rhodium, ruthenium, copper and nickel is disclosed. Also disclosed is a catalytic convertor comprising a substrate monolith coated with the emission control catalyst composition and a lean burn internal combustion engine exhaust gas emission treatment system comprising the catalytic convertor. A variety of processes for preparing the catalyst composition are claimed.
Claims20
An oxidation catalyst composition for controlling emissions, which composition comprises a support and a bimetallic catalyst consisting of gold and a second metal selected from the group consisting of platinum, rhodium, ruthenium, copper and nickel, and wherein the bimetallic catalyst is supported on the support.
Dependencies are inferred from the claim text.