| 摘要 |
<P>PROBLEM TO BE SOLVED: To measure the problem of the water resistance of an exhaust gas purifying catalyst using zeolite as an HC adsorbent to enhance the exhaust gas purifying capacity of the exhaust gas purifying catalyst at a low temperature. <P>SOLUTION: A catalyst layer 3, which contains noble metal supported heat-resistant powder, wherein at least one of Pt and Pd is supported on heat-resistant particles, and Rh doped CeZr type composite oxide powder, is provided on the upper side of the zeolite-containing layer 2 on a carrier 1. <P>COPYRIGHT: (C)2011,JPO&INPIT |
