发明名称 |
Exhaust gas cleaning catalyst |
摘要 |
An exhaust gas cleaning catalyst comprising: a carrier substrate; a catalyst carrying layer formed on the carrier substrate; and a noble metal catalyst carried by the catalyst carrying layer; wherein said catalyst carrying layer comprises at least two layers, and of the at least two layers, lower layer on the side of the carrier substrate is a metal oxide layer with porosity of 40~75% and upper layer on the side of the top surface is a metal oxide layer having thermal conductivity of 5 W/mK or less.
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申请公布号 |
US7547656(B2) |
申请公布日期 |
2009.06.16 |
申请号 |
US20040889042 |
申请日期 |
2004.07.13 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
MIURA MASAHIDE |
分类号 |
B01J23/00;F01N3/10;B01D53/94;B01J20/00;B01J21/00;B01J23/40;B01J23/63;B01J29/00;B01J35/10;B01J37/02;B01J37/025;F01N3/20;F01N3/28 |
主分类号 |
B01J23/00 |
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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