Patent ID: 8753596

Claim:
A catalyst for removal of nitrogen oxides from an exhaust gas of a diesel engine, comprising a support body of length L, and a catalytically active coating having one or more material zones, the catalytically active coating comprising: a zeolite or a zeolite-structured compound containing 1-10% by weight of copper, based on the total weight of the zeolite or of the zeolite like zeolite-structured compound, the zeolite or the zeolite-structured compound having an average mean pore size of less than 4 Angstrom and being selected from the group consisting of chabazite, SAPO-34,and ALPO-34 ;and at least one compound selected from the group consisting of barium oxide, barium hydroxide, barium carbonate, strontium oxide, strontium hydroxide, strontium carbonate, praseodymium oxide, lanthanum oxide, magnesium oxide, magnesium/aluminum mixed oxide, alkali metal oxide, alkali metal hydroxide, alkali metal carbonate,. and mixtures thereof.