METHOD FOR OBTAINING A COLLOIDAL SOLUTION OF COMPOSITE NANOPARTICLES Russian patent published in 2023 - IPC B01J13/00 B82B3/00 

FIELD: composite nanoparticles.

SUBSTANCE: invention relates to a method for obtaining colloidal solutions of composite nanoparticles by chemical vapour deposition, in particular, obtaining a colloidal solution of copper nanoparticles coated with molybdenum disulphide in dimethylformamide. A method is presented for obtaining a colloidal solution of composite nanoparticles consisting of copper cores coated with molybdenum disulphide, for which copper cores are obtained by reducing copper from copper chloride CuCl₂, adding an aqueous solution of copper chloride CuCl₂ to a solvent and processing the resulting solution, characterized in that dimethylformamide is used as a reagent solvent, the solution is thermally treated to reduce copper, a shell of molybdenum disulphide is obtained by introducing ammonium thiomolybdate into the solution with ready-made copper cores after thermal treatment, followed by transportation of the resulting solution in the form of an aerosol by an inert gas flow into a heated reaction zone, by pyrolysis of the mentioned aerosol solution, after which copper nanoparticles coated with molybdenum disulphide are deposited in a container with a solvent - dimethylformamide.

EFFECT: invention provides a reduction in labour costs, a reduction in the number of stages of the synthesis process, the possibility of controlling the concentration of particles in the resulting solution in the process of obtaining.

1 cl, 5 dwg, 3 tbl