NOx purification catalyst and method of producing the same
US9132419B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 7, 2011 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Jul 7, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2258/012
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
[Problem] The present invention provides a NOx purification catalyst which utilizes Ag as one of the catalyst components and exhibits NOx purification performance without adjustment to a special exhaust gas composition, as well as a method of producing the same.[Means for Solution] The present invention provides a nitrogen oxide purification catalyst in which particulates are supported on a metal oxide carrier, wherein the aforementioned particulates consist of Ag and Ni and the aforementioned Ag and Ni are at least partially alloyed. Also provided is a method of producing the aforementioned catalyst, comprising the step of preparing a colloidal suspension in which the ratio of Ag is 10 to 90 at % with respect to the total amount of Ag and Ni.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.