CATALYST FOR OXIDISING CARBON MONOXIDE AND PREPARATION METHOD THEREOF Russian patent published in 2011 - IPC B01J21/00 B01J23/56 B01J37/02 B01J21/04 B01J21/18 B01J37/34 B01J21/08 B82B1/00 B01D53/62 

FIELD: chemistry.

SUBSTANCE: invention relates to chemistry, particularly to catalysts and their preparation. Described is a catalyst for oxidising carbon monoxide, having a porous oxide support, on or more catalytically active platinum group metals and nanodiamonds, on which clusters of the platinum group metals are attached, with the following ratio of components (wt %): catalytically active metal 0.05-1.0; nanodiamond 0.5-5.0; porous oxide support - the rest. Described also is a method of preparing said catalyst, involving saturation of the porous oxide support with an aqueous suspension of nanodiamonds on which clusters of the catalytically active platinum group metal are attached and ultrasonic treatment at temperature 50-80°C for 30-60 minutes and then drying at temperature 100-150°C.

EFFECT: obtained catalyst has high efficiency of converting carbon monoxide to carbon dioxide in air at temperature ranging from 0 to 50°C and CO concentration between 1 and 1000 ppm.

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