Base metal automotive exhaust catalysts with improved activity and stability and method of making the catalysts
US5063193A · kind A · utility
38Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1990 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Jun 6, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved particulate washcoat for use on a ceramic or metallic support is disclosed for the treatment of automotive exhaust gases. The mixture consists essentially of high surface area ceria particles and alumina particles wherein the ceria particles bear copper oxide. Preferably, one of chromium oxide, manganese oxide and tin oxide are dispersed over both the ceria and alumina particles of the washcoat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.