发明名称 |
EXHAUST GAS PURIFYING CATALYST |
摘要 |
The exhaust gas purifying catalyst presented here includes a substrate and a catalyst coat layer formed on the surface of the substrate. The catalyst coat layer is formed in a laminate structure having two layers, with a first layer being nearer to the surface of the substrate and a second layer being relatively further from this surface. The second layer includes a carrier and a noble metal supported on the carrier. The first layer is a noble metal-free layer that does not contain a noble metal but does contain an OSC material having oxygen storage capacity. |
申请公布号 |
US2016288099(A1) |
申请公布日期 |
2016.10.06 |
申请号 |
US201415037078 |
申请日期 |
2014.11.11 |
申请人 |
CATALER CORPORATION |
发明人 |
GOTO Takashi;TAKI Kenichi;MATSUEDA Satoshi |
分类号 |
B01J23/63;B01D53/94;B01J23/10;B01J35/04;B01J35/00 |
主分类号 |
B01J23/63 |
代理机构 |
|
代理人 |
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主权项 |
1. An exhaust gas purifying catalyst which is disposed in an exhaust passage of an internal combustion engine and eliminates NOx contained in exhaust gas, the exhaust gas purifying catalyst comprising: a substrate; and a catalyst coat layer formed on a surface of the substrate, wherein the catalyst coat layer is formed in a laminate structure having two layers, with a first layer being nearer to the surface of the substrate and a second layer being relatively further from this surface, the second layer includes a carrier and a noble metal supported on the carrier, and the first layer is a noble metal-free layer that does not contain a noble metal but does contain an OSC material having oxygen storage capacity. |
地址 |
Kakegawa-shi, Shizuoka JP |