Diesel oxidation catalysts
US8080495B2 · kind B2 · utility
6Cited by
33References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2010 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Aug 6, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/81
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst composition comprises a particulate support and catalyst nanoparticles on the particulate support. The catalyst nanoparticles comprise an alloy of platinum and palladium in an atomic ratio of from about 25:75 to about 75:25 and are present in a concentration of between about 3 and about 10 wt % weight percent of the catalyst composition. The catalyst composition has an X-ray diffraction pattern that is substantially free of the (311) diffraction peak assignable to PtxPd1-x, where 0.25≦x≦0.75.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.