- 专利标题: Catalyst featuring silicone dioxide based support material for the purification of exhaust gases
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申请号: US10486148申请日: 2002-08-08
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公开(公告)号: US20060183636A1公开(公告)日: 2006-08-17
- 发明人: Harald Klein , Ulrich Neuhausen , Egbert Lox , Jurgen Gieshoff , Thomas Kreuzer
- 申请人: Harald Klein , Ulrich Neuhausen , Egbert Lox , Jurgen Gieshoff , Thomas Kreuzer
- 申请人地址: DE HANAU-WOLFGANG D-63403
- 专利权人: UMICORE AG & Co. KG
- 当前专利权人: UMICORE AG & Co. KG
- 当前专利权人地址: DE HANAU-WOLFGANG D-63403
- 优先权: EP01119213.5 20010809
- 国际申请: PCT/EP02/08890 WO 20020808
- 主分类号: B01J23/56
- IPC分类号: B01J23/56
摘要:
The present invention relates to a catalyst for the purification of exhaust gases from an internal combustion engine, which comprises a catalytically active coating on an inert ceramic or metal honeycomb body, said coating comprising at least one platinum group metal selected from the group consisting of platinum, palladium, rhodium and iridium on a fine, oxidic support material. As an oxidic support material, the catalyst comprises a low-porosity material on the basis of silicon dioxide that comprises aggregates of essentially spherical primary particles having an average particle diameter of between 7 and 60 nm.