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US 7,081,430 B2Granted
Exhaust gas purifying catalyst
AssigneeDaihatsu Motor Co., Ltd.
InventorsMari Uenishi, Isao Tan, Hirohisa Tanaka
Life of this patent
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Abstract
An exhaust gas purifying catalyst that provides the excellent low-temperature activity and also develops the good catalytic activity of rhodium to produce a good purifying performance economically. The exhaust gas purifying catalyst comprises an alumina on which rhodium and platinum are previously supported; a zirconium complex oxide on which rhodium and platinum are previously supported; and a cerium complex oxide on which platinum is previously supported.
Claims6
An exhaust gas purifying catalyst comprising:
- an alumina on which rhodium and platinum are previously supported;
- a zirconium complex oxide on which rhodium and platinum are previously supported, and a cerium complex oxide on which platinum is previously supported.
Dependencies are inferred from the claim text.