发明名称 |
Three-way catalysts for purification of exhaust gas and method for the preparation of the catalysts |
摘要 |
This invention relates to a three-way catalyst for use in the purification of exhaust gas from an internal combustion engine, a method of making the same and an exhaust system including a three-way catalyst for an internal combustion engine. Specifically, the three-way catalyst comprises a substrate suitable for the purification of exhaust gas from an internal combustion engine wherein the catalyst comprises a substrate, a refractory oxide layer, tungsten and/or one or more tungsten containing compounds and one or more platinum group metals.
|
申请公布号 |
US4500650(A) |
申请公布日期 |
1985.02.19 |
申请号 |
US19820340046 |
申请日期 |
1982.01.18 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
WYATT, MICHAEL;LEACH, GARY M.;GOULD, ASHLEY M. |
分类号 |
B01D53/94;B01J23/64;B01J23/652;B01J23/89;B01J37/02;(IPC1-7):B01J23/64 |
主分类号 |
B01D53/94 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|