Purification catalyst for exhaust gas, production method therefor, and purification catalyst device for exhaust gas

Conventional composite oxide of the same amount of noble metal at a low temperature exhaust gas purifying catalyst of the present invention provides a method of manufacturing, by using a composite oxide containing Pd-based rare earth metal selected from at least one rare earth metal, containing baked, thereby preventing the crystallization process caused by the Pd dispersion decreased to exert its excellent purification properties.