Exhaust treatment device, and methods of making the same
US7875250B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2003 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Sep 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49345
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust treatment device, comprises a substrate; a catalyst layer deposited on the substrate, the catalyst layer comprising a first catalyst metal and a second catalyst metal, wherein greater than or equal to about 70 wt % of the first catalyst metal and the second catalyst metal is non-alloyed under alloying conditions, wherein the weight percent is based on a combined weight of the first catalyst metal and the second catalyst metal. The first catalyst metal and the second catalyst metal are different and may be individually selected from the group consisting of platinum, palladium, rhodium, rhenium, iridium, ruthenium, and osmium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.