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.
Claims14
An oxidation catalyst composition for controlling emissions, which composition comprises a support and a bimetallic catalyst consisting of gold and platinum, wherein the bimetallic catalyst is supported on the support, and wherein the support comprises a reducible metal oxide, which is an oxide of cerium.
Dependencies are inferred from the claim text.