METHOD OF PRODUCING HETEROGENEOUS CATALYSTS FOR LOW-TEMPERATURE OXIDATION OF CARBON MONOXIDE Russian patent published in 2020 - IPC B01J37/25 B82B1/00 B01J37/03 B01J37/14 B01J23/52 B01J21/04 B01J23/28 B01D53/62 

FIELD: technological processes.

SUBSTANCE: invention relates to a method of producing catalysts with nanoparticles of metals and can be used in forming carbon dioxide to obtain a range of products in the chemical and food industries. Essence of the invention is that nano-sized gold particles are deposited on the surface of a thin tunnel-transparent aluminum oxide film formed on metallic molybdenum while maintaining temperature at level of 300 °C, where aluminum metal is deposited on molybdenum surface by thermal evaporation at flow density within 2×10¹⁴ atoms per minute per cm² in oxygen atmosphere for 7 minutes and after termination of metal sputtering, obtained system is held in oxygen atmosphere for 4 minutes with subsequent removal of oxygen gas medium from vacuum chamber, on surface of obtained aluminum oxide film, maintained at temperature of 100 °C, metal gold is deposited with thermal evaporation at atom flow rate of 5×10¹³ min^-1 cm^-2 for 5 minutes.

EFFECT: due to the method elements, the technical solution enables to increase catalyst activity while maintaining high stability.

1 cl, 3 ex