发明名称 |
EXHAUST GAS PURIFYING CATALYST |
摘要 |
A high exhaust gas-purifying efficiency is achieved. An exhaust gas-purifying catalyst (1) includes a substrate (2), an oxygen storage layer (3) covering the substrate (2) and including an oxygen storage material, and a catalytic layer (4) covering the oxygen storage layer (3) and including palladium, rhodium and a carrier supporting them, the catalytic layer (4) having a precious metal concentration higher than that of the oxygen storage layer (3).
|
申请公布号 |
EP2075063(A1) |
申请公布日期 |
2009.07.01 |
申请号 |
EP20070829917 |
申请日期 |
2007.10.16 |
申请人 |
CATALER CORPORATION |
发明人 |
KITAMURA, ICHIRO;HIRAI, AKIMASA;TAKI, KENICHI |
分类号 |
B01J23/63;B01D53/94;B01J27/053;B01J29/068 |
主分类号 |
B01J23/63 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|