Exhaust gas purifying catalyst
US9080491B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Nov 14, 2007 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Nov 14, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2510/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides an exhaust gas purifying catalyst that can keep high catalytic performance even being subjected to exhaust gas. The exhaust gas purifying catalyst includes: noble metal particles (7); and supports (3), each support supporting the noble metal particles (7), wherein at least a certain amount of the noble metal particles (7) is provided on an outermost surface of the support (3), or provided within a range of 10% inside of a diameter of the support (3) from the outermost surface in a direction toward a center of the support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.