Exhaust gas purification catalyst and method for purifying exhaust gas by using same
US8465711B2 · kind B2 · utility
7Cited by
3References
22Claims
0Family size
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Key dates
| Filing date | Aug 27, 2009 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Dec 22, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas purification catalyst of the present invention contains at least a precious metal coated with lanthanum-containing alumina. In at least one embodiment, it is possible to provide: an exhaust gas purification catalyst which can (i) have an increase in heat resistance, and (ii) inhibit the precious metal from being mixed in alumina and therefore inhibit the precious metal from forming a solid solution in combination with alumina; and a method for efficiently purifying, by use of the catalyst, an exhaust gas emitted from an internal-combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.