Exhaust gas control catalyst
US9937487B2 · kind B2 · utility
6Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2014 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Nov 6, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided is an exhaust gas control catalyst including: a substrate (21); and a catalyst layer (22) that is arranged on the substrate, in which the catalyst layer (22) includes a palladium region (23) that contains palladium, aluminum oxide, ceria-zirconia solid solution, and a composite oxide of lanthanum, iron, and zirconium, and a rhodium region (24) that is arranged adjacent to the palladium region along a plane direction of the catalyst layer and contains rhodium, aluminum oxide, and ceria-zirconia solid solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.