Catalyst for purifying exhaust gas
US6911414B2 · kind B2 · utility
38Cited by
11References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2001 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Apr 20, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for purifying an exhaust gas includes zirconia particles, and a transition metal layer, covering at least a part of a surface of the zirconia particles in a lamellar manner. It can reduce the emission of particulate materials (i.e., P.M.), such as SOF and sulfates, because the contacting area enlarges between the transition metal layer and materials to be purified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.