METHOD FOR PRODUCING CATALYTICALLY ACTIVE COMPOSITE MATERIAL Russian patent published in 2018 - IPC C25D11/10 B01J37/34 B01J37/08 B01J37/02 B01J23/32 B01J32/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the methods for producing oxide catalysts on a metal support substrate that can be used in oxidation reactions of CO to CO₂, which take place in the high-temperature processes for cleaning process and exhaust gases, in particular in the energy and automotive industries. The proposed method includes anodizing an aluminium substrate in a galvanostatic mode at the current density of 10-15 mA/cm² for 20-60 min in 3% aqueous solution of oxalic acid C₂H₂O₄, washing and drying, after which the intermediate porous alumina layer formed on the aluminium substrate is treated with a 1% solution of phosphoric acid heated up to 35°C, washed, dried, and applied to the treated aluminium substrate, ultrafine manganese dioxide, which is formed by impregnation with a 5% solution of potassium permanganate KMnO₄ followed by annealing in air at 220-230°C for 10 minutes, while the operation of applying manganese dioxide can be carried out three times.

EFFECT: simplification and cheaper technology while expanding the range of composite catalytic materials containing a metal substrate with supported transition metal oxides.

2 cl, 4 dwg, 2 ex