Exhaust gas purification catalyst and production method thereof
US9233356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2015 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Feb 19, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas purification catalyst including a catalyst support and bimetallic particles supported thereon, wherein said bimetallic particles include an at least partial solid solution of rhodium and iridium and have a diffraction peak at 40.66°<2θ<41.07° in X-ray diffraction with a CuKα ray. A method for producing an exhaust gas purification catalyst, includes heating a mixed solution containing a rhodium salt, an iridium salt and a reducing agent at a temperature sufficient to reduce rhodium and iridium, thereby producing bimetallic particles including an at least partial solid solution of rhodium and iridium; and supporting the produced bimetallic particles on a catalyst support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.