| abstract |
The purpose of the present invention is to provide an oxidation catalyst for exhaust gas purification having high durability and a method for producing the catalyst. The purpose is achieved by an oxidation catalyst for exhaust gas purification containing a refractory inorganic oxide, β-zeolite, a catalyst component and a metal component, which are supported on the refractory inorganic oxide and β-zeolite, all of said components being supported on a three dimensional structure. The catalyst component is platinum, or platinum and palladium, and the metal component is calcium, in an amount of 0.001 to 0.12 mol per 1L of a catalyst in Ca conversion. |