FIELD: gas treatment catalysts.
SUBSTANCE: catalyst preparation method comprises depositing initially liquid soda glass onto metallic or glass-cloth surface, after which transition metal oxide mixture is sputtered onto wet surface, said transition metal oxide mixture containing, wt %: chromium (III) oxide 18-35, manganese (IV) oxide 18-35, alumina - the rest; or cupric oxide 5-15, chromium (III) oxide 10-15, alumina - the rest; or cupric oxide 12-35 and alumina - the rest. Resulting coating is dried in air during 1 day and then molded through stepwise heat treatment to temperature 400°C, which temperature is maintained for 2-2.5 h.
EFFECT: prolonged lifetime at the same catalytic efficiency.
3 tbl
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