发明名称 |
Catalyst for purifying exhaust gas |
摘要 |
A catalyst (3) for purifying an automotive exhaust gas, in which inner and outer catalytic layers (5,6), each of which has a base material and a catalytic material held by the base material, are stratified on a honeycomb-type carrier (4). In the catalyst (3), the inner catalytic layer (5) contains a palladium component as the catalytic component. Further the inner catalytic layer (5) contains a nickel oxide component for preventing poisoning of the palladium component. On the other hand, though the outer catalytic layer (6) contains a rhodium component as the catalytic component, it does not contain a palladium component nor a nickel oxide component.
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申请公布号 |
US5849660(A) |
申请公布日期 |
1998.12.15 |
申请号 |
US19960605499 |
申请日期 |
1996.02.26 |
申请人 |
MAZDA MOTOR CORPORATION |
发明人 |
TAKEMOTO, TAKASHI;KOMATSU, KAZUNARI;SHIMIZU, TAEKO;YAMADA, HIROSHI;MURAKAMI, HIROSHI;KOISHI, MASAYUKI;KODA, YUKI;MATSUI, KEIKO |
分类号 |
B01D53/94;B01J23/89;B01J37/02;(IPC1-7):B01J23/44;B01J23/46;B01J23/75 |
主分类号 |
B01D53/94 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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