| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust emission control filter whose PM (Particulate Matter) removal performance can be improved while whose cost is suppressed.SOLUTION: There is provided the exhaust emission control filter provided in an exhaust passage of an internal combustion engine and collecting and removing particular materials in an exhaust of the internal combustion engine. The exhaust emission control filter includes a porous filter base material and a catalyst carried on the filter base material and oxidizing and reducing the particular materials, the catalyst has Ce-containing oxide containing Ce and Ag carried on the Ce-containing oxide, the content of Ag in the catalyst is 50 mass% or less, a specific surface area of the Ce-containing oxide is 0.5 m/g to 105.6 m/g and a surface concentration of Ag on the Ce-containing oxide is 25.1% to 67.7% in terms of elements. |
