发明名称 |
EXHAUST GAS PURIFICATION CATALYST, METHOD OF PRODUCING THE SAME, AND EXHAUST GAS PURIFICATION METHOD USING THE SAME |
摘要 |
An exhaust gas purification catalyst includes an alumina support, a silica layer, and active metal particles. The silica layer is formed on a surface of the alumina support. The active metal particles are formed of platinum and palladium, the platinum and the palladium being supported on the silica layer. A ratio of fine particles having a particle size of 2.0 nm or less to all the active metal particles is 50% or higher in terms of the number of particles, the fine particles being included in the active metal particles. A ratio of fine alloy particles having a palladium content ratio of 10 at% to 90 at% to all the fine particles is 50% or higher in terms of the number of particles, the fine alloy particles being included in the fine particles. |
申请公布号 |
EP2952246(A8) |
申请公布日期 |
2016.02.17 |
申请号 |
EP20150170097 |
申请日期 |
2015.06.01 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
HIROSE, TAKUTO;YAMAZAKI, KIYOSHI;SOBUE, YUICHI;SHINMYO, YUSUKE |
分类号 |
B01D53/94;B01J21/12;B01J23/42;B01J23/44;B01J35/02;B01J37/02;B01J37/08;F01N3/10 |
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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