Patent ID: 6602479
Filing Date: 2003-08-05
Classification: B01D,B01J,Y02T

Abstract:
An exhaust gas purifying catalyst comprising:a catalytically active component comprising at least one kind of noble metals, a refractory inorganic oxide, and a zirconium oxide containing cerium and lanthanum; and a refractory three-dimensional structure coated with the catalytically active component; wherein said zirconium oxide containing cerium and lanthanum has a tetragonal crystal structure of zirconium oxide, a weight ratio of cerium as CeO2 to zirconium as ZrO2 in the range of 1:8 to 1:1, and a weight ratio of lanthanum as La2O3 to zirconium as ZrO2 in the range of 1:1.5 to 1:60.