Exhaust gas purifying catalyst and production method thereof
US9073044B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 19, 2013 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Jan 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An object is to maintain an effect of enhancing activity of noble metal particles by transition metal without increasing production cost and an environmental load.An exhaust gas purifying catalyst 1 is composed of: noble metal particles 2; first compounds 3 which contact the noble metal particles 2 and suppress movement of the noble metal particles 2; and second compounds 4 which contain the noble metal particles 2 and the first compounds 3, suppress the movement of the noble metal particles 2, and suppress coagulation of the first compounds 3 following mutual contact of the first compounds 3, wherein the first compounds 3 support the noble metal particles 2, and simplexes or aggregates of the first compounds 3 supporting the noble metal particles 2 are included in section partitioned by the second compounds 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.