| abstract |
The silicon carbide catalyst body of the present invention is a porous body having a predetermined shape formed by bonding a plurality of silicon carbide particles as aggregates to each other in a state where a plurality of pores exist, a porous body having a predetermined shape formed on the porous body, and supported by an alkali metal and And / or a catalyst containing an alkaline earth metal, the catalyst being supported through a crystalline coating made of an oxide coated on at least a portion of the surface of the silicon carbide particles forming the first connective tissue. In the catalyst body, a catalyst such as a NO x storage catalyst can maintain its activity for a long time. |