Exhaust gas-purifying catalyst
US8580706B2 · kind B2 · utility
7Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2011 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Nov 22, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas-purifying catalyst according to the present invention includes a substrate, a first catalytic layer facing the substrate and includes at least one precious metal selected from the group consisting of palladium and platinum, and alumina doped with an alkaline-earth metal element, and a second catalytic layer facing the substrate with the first catalytic layer interposed therebetween or intervening between the substrate and the first catalytic layer, the second catalytic layer includes rhodium and alumina doped with the alkaline-earth metal element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.