发明名称 |
Catalyst for exhaust gas purification |
摘要 |
To provide an exhaust gas purifying catalyst which can maintain the catalytic activity of Rh at a high level over a long time and can achieve satisfactory emission control performance, an exhaust gas purifying catalyst is prepared so as to contain a composite oxide having a perovskite structure represented by the general formula (1): <?in-line-formulae description="In-line Formulae" end="lead"?>ABRhO<SUB>3</SUB> (1) <?in-line-formulae description="In-line Formulae" end="tail"?> wherein A represents at least one element selected from rare-earth elements essentially including one or more rare-earth elements each having a valence of 3 as the only valence and arbitrarily including Ce and/or Pr; and B represents at least one element selected from transition elements excluding Co, Rh and the rare-earth elements, and Al.
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申请公布号 |
US2005233897(A1) |
申请公布日期 |
2005.10.20 |
申请号 |
US20050519980 |
申请日期 |
2005.01.04 |
申请人 |
TANAKA HIROHISA;TAN ISAO;UENISHI MARI;KAJITA NOBUHIKO;TANIGUCHI MASASHI |
发明人 |
TANAKA HIROHISA;TAN ISAO;UENISHI MARI;KAJITA NOBUHIKO;TANIGUCHI MASASHI |
分类号 |
B01D53/86;B01D53/94;B01J21/04;B01J21/06;B01J23/00;B01J23/63;B01J23/656;B01J23/68;B01J23/89;B01J35/00;B01J37/02;B01J37/03;B01J37/08;C01G55/00;(IPC1-7):B01J23/10 |
主分类号 |
B01D53/86 |
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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