| abstract |
The present invention is a crystalline or a porous support, the oxidation applied to this cerium (ceroxide) function layer, and this oxide-cobalt is applied to the made of a glassy inorganic material-nitrogen a, N 2 O, which comprises a layer containing material in the gas phase and A catalyst for decomposition into oxygen is disclosed. The catalyst can be used, in particular, as a secondary or tertiary catalyst in a nitric acid system. |