BASE METAL-BASED EXHAUST GAS CLEANING CATALYST

摘要

PROBLEM TO BE SOLVED: To provide a base metal-based exhaust gas cleaning catalyst which has high NO reduction activity in an initial period and after endurance at a low temperature (about 200°C) and a high temperature (about 500°C) and in which Cu is catalyst metal.

SOLUTION: The exhaust gas cleaning catalyst is characterized in that the catalyst metal is Cu and a catalyst carrier comprises 40 to 60 wt.% of Al2O3, 10 to 25 wt.% of CeO2, and the balance of CeO2-ZrO2.

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