Catalyst Powder, Exhaust Gas Purifying Catalyst, And Method Of Producing The Catalyst Powder

摘要

A method of producing catalyst powder of the present invention has a step of precipitating a noble metal particle ( 2 ) and a porous carrier ( 1 ) in a reversed micelle substantially simultaneously; and a step of precipitating a transition metal particle ( 3 ) in the reversed micelle. By this method, it is possible to obtain catalyst powder which restricts an aggregation of the noble metal particles even at a high temperature and is excellent in a catalytic activity.