EXHAUST GAS PURIFICATION CATALYST AND PRODUCTION METHOD THEREOF

摘要

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.

主权项

1. An exhaust gas purification catalyst, comprising a catalyst support and bimetallic particles supported thereon, wherein said bimetallic particles comprise 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.