Invention Grant
- Patent Title: Exhaust gas purification catalyst
- Patent Title (中): 废气净化催化剂
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Application No.: US14003537Application Date: 2012-03-02
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Publication No.: US08796172B2Publication Date: 2014-08-05
- Inventor: Isao Chinzei
- Applicant: Isao Chinzei
- Applicant Address: JP Toyota-shi, Aichi-ken
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi, Aichi-ken
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- Priority: JP2011-053404 20110310
- International Application: PCT/IB2012/000386 WO 20120302
- International Announcement: WO2012/120349 WO 20120913
- Main IPC: B01J20/00
- IPC: B01J20/00 ; B01J21/00 ; B01J21/04 ; B01J23/00 ; B01J23/08 ; B01J23/40 ; B01J23/42 ; B01J23/44 ; B01J23/56
Abstract:
An exhaust gas purification catalyst is provided with a catalyst coating layer (40) formed on the surface of a substrate (32). This catalyst coating layer (40) is formed of an upper catalyst coating layer (36) in which Rh particles are supported on a porous support, and a lower catalyst coating layer (34) in which Pd particles are supported on a support that contains an ACZ composite oxide made of alumina (Al2O3), ceria (CeO2), and zirconia (ZrO2).
Public/Granted literature
- US20130345049A1 EXHAUST GAS PURIFICATION CATALYST Public/Granted day:2013-12-26
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