CATALYTIC CARRIER FOR CLEANING EXHAUST GAS, CATALYST FOR CLEANING EXHAUST GAS USING THE SAME, AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a catalytic carrier for cleaning exhaust gas capable of obtaining a catalyst for cleaning exhaust gas having sufficient catalytic activity even in an excess oxygen atmosphere.

SOLUTION: The catalytic carrier for cleaning exhaust gas includes: a porous body (A) made of an oxide containing at least one element selected from the group consisting of Al, Ti, Zr and Ce; and Si-based composite oxide particles (B) carried by the porous body (A) and including at least one additional element selected from the group consisting of Ti, Fe and Al. A specific surface after firing at 800°C for 5 hr in the air is 100 m2/g or more, and the ratio of the pore volume of pores having 1-5 nm of a pore radius after the firing is 8-50% to the pore volume of pores having 1-100 nm of a pore radius.

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