Catalyst for purifiying exhaust gas comprising a complex oxide of platinum and alkaline earth metal

摘要

A catalyst for purifying an exhaust gas, comprising: a carrier of inorganic oxide, platinum complex oxide, wherein the platinum complex oxide comprises platinum and at least one alkaline earth metal, and metal oxide, wherein the metal oxide is disposed between the carrier and the platinum complex oxide, and the metal of the metal oxide is selected from the group consisting of Mg, Ca, Sr, Ba, La, Ce and mixtures thereof.