| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a catalyst for purifying exhaust gas that can achieve improved activation, enhanced low temperature purification performance and a reduced amount of use in a stoichiometric atmosphere utilized in a three-dimensional catalyst for a gasoline engine, and to provide a method for producing the same. <P>SOLUTION: The catalyst for purifying exhaust gas includes a carrier made of metal oxide, and a plurality of composite particles including Au and Rh carried on the carrier. The center of the composite particles has a composition containing Au as the maximum component, and the outer periphery thereof has a composition containing Rh as the main component. <P>COPYRIGHT: (C)2012,JPO&INPIT |
