| abstract |
The present invention relates to a mixture of (a) a zeolite compound in an amount of 10% to 60% by weight, wherein the zeolite compound comprises cations selected from fe2 +, fe3 +, cu +, cu2 + or mixtures. and (b) a ceria / zirconia / alumina compound oxide, wherein the alumina content in said compound oxide is in the range of 20 to 80% by weight, in particular from 40 to 60% by weight, a catalyst comprising such a catalyst composition and its use for diesel exhaust and lean burn exhaust aftertreatment. |