PURIFICATION CATALYST FOR EXHAUST GAS, PRODUCTION METHOD THEREFOR, AND PURIFICATION CATALYST EQUIPMENT FOR EXHAUST GAS

摘要

A purification catalyst for exhaust gas which exhibits satisfactory performance even at a low temperature operation of starting or idling of engine (not more than 400° C.), and a production method therefor are provided. The catalyst comprises an aluminum oxide supporting Pd, and the aluminum oxide is LnAlO3 (Ln: rare-earth metal).