CATALYTIC MEMBER FOR PURIFYING EXHAUST GASES, AND WASHCOAT

摘要

Disclosed are a washcoat and a catalyst member coated with the washcoat, wherein the washcoat, which is applied on a substrate as a catalyst member for purifying exhaust gas, includes a catalytically inactive refractory oxide not impregnated with catalytic components, and thus, even when the support structure physically collapses due to the sintering of the support, the diffusion rate of exhaust gas can be maintained, and the exposed portion of catalytically active components can be maintained, thus increasing the service life of the catalyst.