Systems and methods for using Pd1+ in a TWC
US9216410B2 · kind B2 · utility
12Cited by
13References
20Claims
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Key dates
| Filing date | Jun 6, 2013 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Jun 6, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Stabilized palladium (+1) compounds to mimic rhodium's electronic configuration and catalytic properties are disclosed. Palladium (+1) compounds may be stabilized in perovskite or delafossite structures and may be employed in Three-Way Catalysts (TWC) for at least the conversion of HC, CO and NOx, in exhaust gases. The TWC may include a substrate, a wash-coat and, a first impregnation layer, a second impregnation layer and an over-coat. The second impregnation layer and the over-coat may include palladium (+1) based compounds as catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.