Catalyst powder, exhaust gas purifying catalyst, and method of producing the catalyst powder
US7585811B2 · kind B2 · utility
16Cited by
103References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 10, 2005 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Sep 3, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of producing catalyst powder of the present invention has a step of precipitating a noble metal particle (2) and a porous carrier (1) in a reversed micelle substantially simultaneously; and a step of precipitating a transition metal particle (3) in the reversed micelle. By this method, it is possible to obtain catalyst powder which restricts an aggregation of the noble metal particles even at a high temperature and is excellent in a catalytic activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.