| abstract |
In an exhaust gas purifying catalyst, a means capable of maintaining catalyst performance even after long-term use is provided. An upper layer has a carrier containing an alumina-added ceria-zirconia composite oxide, rhodium supported on the carrier, and lanthanum-added alumina, and a lower layer has a carrier containing lanthanum-added alumina and It has palladium supported on the carrier, ceria-zirconia composite oxide containing at least one kind of rare earth element, further ceria-zirconia composite oxide, and barium sulfate. The ceria-zirconia composite oxide containing a rare earth element contains at least one selected from the group consisting of lanthanum, yttrium, and praseodymium, and is X-ray diffraction pattern (CuKα) after heating at 1100 ° C. for 5 hours in the atmosphere. 2θ = 14.5 ° and 29 ° intensity ratio {I (14/29) value} is 0.02 or more, and 2θ = 28.5 ° and 29 ° intensity ratio {I (28/29) value} is 0.08 or less. [Selection] Figure 1 |