| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas purifying catalyst capable of effectively demonstrating gas purifying performance as well as reducing usage of noble metal. <P>SOLUTION: The exhaust gas purifying catalyst 1, which includes a first purifying member 2 containing copper and not containing noble metal and a second purifying member 3 arranged adjacent to the first purifying member 2 and containing noble metal, is used for purifying exhaust gas exhausted in a stoichiometric burn area where an air-fuel ratio (A/F) crosses 14.6. As the exhaust gas purifying catalyst 1 includes the first purifying member 2 containing copper and not containing noble metal and the second purifying member 3 containing noble metal, it can efficiently purify the exhaust gas exhausted in the stoichiometric burn area where the air-fuel ratio (A/F) crosses 14.6, and also can reduce the usage of noble metal. <P>COPYRIGHT: (C)2013,JPO&INPIT |
