| abstract |
The invention relates to a catalyst comprising a carrier body having a length L, which extends between a first end face "a" and a second end face "B", and catalytically active material zones A, B and C of different compositions arranged on the carrier body, wherein-the material zone A contains platinum or platinum and palladium in a weight ratio Pt: Pd ≧ 1 and extends along 70% to 100% of the length L starting from the end face "a" or from the end face "B", and-the material zone B contains palladium or platinum and palladium and extends along a part of the length L starting from the end face "B", and-the material zone C contains an SCR active material and extends along a part of the length L starting from the end face "a", wherein the material zone C is arranged above the material zone A. |