Patent ID: 8852519
Filing Date: 2014-10-07
Classification: B01D,B01J,Y02T

Abstract:
1. An exhaust gas purifying catalyst comprising: a crystalline metal oxide support and a noble metal particle supported on said support, wherein said noble metal particle is epitaxially grown on said support, wherein said noble metal particle is dispersed and supported on the outer and inner surfaces of said support, wherein said noble metal particle is supported in a generally hemispherical shape on said support, wherein the width (W) of the portion of contact between said support and said noble metal particle and the height (H) of said noble metal particle from the surface of said support satisfy the following formula (1): wherein the height (H) of said noble metal particle from the surface of said support is 0.5 nm or more, and wherein the particle diameter of said noble metal particle as measured by a carbon monoxide adsorption method is from 0.5 to 10 nm.