CATALYST-SUPPORTED PARTICULATE FILTER

摘要

PROBLEM TO BE SOLVED: To provide a catalyst-supported particulate filter with less performance deterioration caused by sulfur poisoning, even though using a catalyst material comprising a complex oxide capable of releasing oxide and Ag supported thereon.SOLUTION: A Zr-based complex oxide 21 having a function to cause an oxygen exchange reaction supports Ag 24 in coexistence with an inhibitor 26 for the S poisoning of the Ag 24.SELECTED DRAWING: Figure 5