CATALYST AND METHOD FOR PREPARING A CATALYST

A catalyst (2) with a porous, ceramic support body (4) having a porosity which is formed by pores in at least a part of the ceramic support body (4), and which furthermore has a catalytically active washcoat coating (10) applied to the ceramic support body (4), which catalytically active washcoat coating having a layer thickness (d1),comprises a permanent catalytically inactive impregnation (12) comprising at least one catalytically inactive inorganic component, and wherein the permanent inactive impregnation (12):a) has a layer thickness (d2) and is present at least partially between a surface of the porous ceramic support body (4) and the catalytically active washcoat coating (10); and/or b) is present in the pores of the ceramic support body (10) in a region with reduced porosity underneath the surface of the ceramic support body (10). 具有多孔陶瓷载体(4)的催化剂(2)，所述多孔陶瓷载体(4)具有孔隙度，所述孔隙度是由所述陶瓷载体(4)的至少部分中的孔隙形成，和所述催化剂(2)还具有施加至所述陶瓷载体(4)的催化活性载体涂层(10)，所述催化活性载体涂层具有层厚度(d1)，所述载体包含持久的催化非活性浸渍(12)，所述持久的催化非活性浸渍(12)包含至少种催化非活性无机组分