Exhaust gas purification device
US11759769B2 · kind B2 · utility
1Cited by
2References
1Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 7, 2021 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Oct 7, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2370/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided is an exhaust gas purification device that allows improving an exhaust gas purification performance. An exhaust gas purification device of the present disclosure includes a substrate and a catalyst layer disposed on the substrate. The catalyst layer contains a porous carrier, a catalytic metal that is supported by the porous carrier and belongs to platinum group, an alkaline earth metal supported by the porous carrier, and an alkaline earth metal not supported by the porous carrier. At least a part of the alkaline earth metal supported by the porous carrier is supported inside the porous carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.