abstract |
A catalyst consisting of a spinel having formula CuaZncAldO4 where a + c + d = 3, a>0, c>0 and d>0 is used for the catalytic reduction of NOx and/or the oxidation of hydrocarbons present in waste gases. Also claimed is a method for mfg. such a catalyst from copper oxide, cobalt oxide, zinc oxide and aluminium oxide. |