发明名称 CATALYST FOR PURIFYING EXHAUST GAS
摘要 <p>In the present invention, it is an assignment to optimize a loading density of noble metal on catalyst. Pt is loaded in such an amount that a loading amount per 1 liter of a support substrate exceeds 0. 75 g on an exhaust-gas upstream side of a coating layer, and a loading density of Rh in the coating layer is made so that it becomes higher on an exhaust-gas downstream side than on the exhaust-gas upstream side. The purifying performance after warming up improves by loading Rh with high density on the exhaust-gas downstream side that is likely to become rich atmosphere.</p>
申请公布号 EP2047903(B1) 申请公布日期 2015.10.28
申请号 EP20070791095 申请日期 2007.07.20
申请人 TOYOTA JIDOSHA KABUSHIKI KAISHA 发明人 YAMATO, MASANORI;KUNO, OJI
分类号 B01J23/63;B01D53/94;B01J23/42;B01J23/46;B01J35/00;B01J37/02 主分类号 B01J23/63
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