CATALYST CARRIER PARTICLE, EXHAUST GAS PURIFYING CATALYST, AND METHODS FOR PRODUCING THOSE

摘要

Disclosed are a catalyst support particle comprising alumina having dispersed therein ceria primary particles, wherein a prominent peak of alumina is not present in the vicinity of 2¸=67° in the X-ray diffraction analysis; an exhaust gas purifying catalyst obtained by loading a noble metal on the support particle; and production processes of the support catalyst and the exhaust gas purifying catalyst.