FIELD: technological processes.
SUBSTANCE: invention relates to a composition for systems for post-processing exhaust gases of diesel engines, gasoline combustion engines, engines on lean mixture and power plants, having the formula Ce1-a-b-cNaMbDcOx (I), in which M denotes potassium, N denotes Bi and / or Sb, D is present or absent, and if present, then selected from one or more elements of Mg, Ca, Sr, Ba; Y, La, Pr, Nd, Sm, Gd, Er; Fe, Zr, Nb, Al; a is a number in range 0<a≤0.9, b is a number in range 0<b≤0.3, c is a number in range 0≤c≤0.2; a plus b plus c equals <1, and x is a number in range 1.2≤x≤2. Invention also relates to use of disclosed composition for post-processing exhaust gas systems of diesel engines, gasoline combustion engines, engines on lean mixture and power plants.
EFFECT: technical result consists in obtaining a novel composition having higher catalytic activity.
13 cl, 2 dwg, 4 tbl, 18 ex
