Exhaust gas purification catalyst
US8796172B2 · kind B2 · utility
13Cited by
31References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2012 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Mar 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.