发明名称 |
CATALYST FOR CLEANING EXHAUST GAS |
摘要 |
<P>PROBLEM TO BE SOLVED: To improve light-off performance of a catalyst for cleaning an exhaust gas. <P>SOLUTION: The catalyst for cleaning the exhaust gas includes at a catalyst layer first composite oxide particle components 4 containing Ce and Rh 8 and allowing a part of the Rh to be exposed on a particle surface and second composite oxide particle components 5 containing rare earth metals except Ce, Zr and Ce. The first composite oxide particle component 4 has a particle size distribution having a peak in a ≥100 nm and ≤300 nm of a particle diameter range. The second composite oxide particle component 5 has a particle size distribution having a peak in a particle diameter range larger than that of the first composite oxide particle component 4. At least a part of the particles of the first composite oxide particle components 4 are attached to at least a part of the particles of the second composite oxide particle components 5. <P>COPYRIGHT: (C)2011,JPO&INPIT |
申请公布号 |
JP2011062683(A) |
申请公布日期 |
2011.03.31 |
申请号 |
JP20100070930 |
申请日期 |
2010.03.25 |
申请人 |
MAZDA MOTOR CORP |
发明人 |
AKAMINE MASAAKI;IWAKUNI HIDEJI;KAWABATA HISAYA;OCHI YASUHIRO;MURAKAMI YUKI;MINEO SUSUMU;TAKAMI AKIHIDE;SHIGETSU MASAHIKO |
分类号 |
B01J23/63;B01D53/94;B01J27/25;F01N3/10 |
主分类号 |
B01J23/63 |
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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