发明名称 |
Exhaust gas purification catalytic material and method for fabricating the same |
摘要 |
The present invention relates to an exhaust gas purification catalytic material containing: (a) a mixed oxide containing Ce and Zr for storing and releasing oxygen; and (b) a precious metal catalyst made of one or more kinds of precious metals. The precious metal catalyst comprises a first precious metal catalyst component placed between atoms, at crystal lattice points and/or at oxygen defect sites of the mixed oxide and a second precious metal catalyst component loaded on the surface of the mixed oxide, thereby improving the thermal resistance, oxygen storage capacity and exhaust gas conversion performance of the catalytic material.
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申请公布号 |
US7341975(B2) |
申请公布日期 |
2008.03.11 |
申请号 |
US20040985773 |
申请日期 |
2004.11.10 |
申请人 |
MAZDA MOTOR CORPORATION |
发明人 |
IWAKUNI HIDEHARU;AKAMINE MASAAKI;MIYOSHI SEIJI;YAMADA HIROSHI;TAKAMI AKIHIDE;MURAKAMI YUKI |
分类号 |
B01J23/40;F01N3/10;B01D53/94;B01J21/06;B01J23/00;B01J23/42;B01J23/44;B01J23/63;B01J37/02;B01J37/03;C01G25/00 |
主分类号 |
B01J23/40 |
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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