EXHAUST GAS CLEANING CATALYST, ITS PRODUCTION METHOD, AND EXHAUST GAS CLEANING CATALYST APPARATUS FOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas cleaning catalyst exhibiting sufficient performance even during low temperature (400°C or lower) operation at starting of an automobile or idling by enhancing activity of noble metal itself and preventing reduction of the activity at high temperature.

SOLUTION: Al oxide is carried with Pd oxide and the Pd oxide is A2PdO3(A: alkaline earth element).

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