Patent ID: 9533290
Date: 2017-01-03
CPC Classifications: B01D,B01J,F01N

Claim:
1. An exhaust gas purifying catalyst composition comprising ceria-zirconia particles with a feature in that a peak arising from (111) plane is divided into two peak tops in an XRD pattern, wherein the ceria-zirconia particles have a mass ratio of CeO 2 to ZrO 2 of 5:95 to 50:50, wherein a transition metal including at least one of Cu, Cr, Fe, Mn, Co, Ni, and Ag is supported on the ceria-zirconia particles wherein Cu and a transition metal A including Mn, Cu, and a transition metal including at least one of Cr, Fe, Co, Ni, and Ag are supported on the ceria-zirconia particles.