METHOD FOR SYNTHESIS OF POLYACRYLONITRILE-BASED CoNi/C NANOCOMPOSITE Russian patent published in 2015 - IPC B82B3/00 C01B31/02 C01G51/00 C01G53/00 B82Y30/00 

FIELD: chemistry.

SUBSTANCE: method includes first preparing, at 25-50°C, a solution containing, wt %: polyacrylonitrile - 4.58; CoCl₂·6H₂O - 1.86; NiCl₂·6H₂O - 1,86; dimethyl formamide - 91.7, and holding until complete dissolution of all components. Dimethyl formamide is then removed by evaporation at 25-70°C. The obtained solid residue is heated with infrared radiation in two steps at pressure of 10^-2-10^-3 mmHg, wherein the first step is carried out for 5-15 minutes at 100-200°C while heating at a rate of not more than 20°C/min, and the second step is carried out for 5-15 minutes at 270-800°C while heating at a rate of not more than 50°C/min. The obtained polyacrylonitrile-based CoNi/C nanocomposites contain CoNi nanoparticles with size of 10-80 nm.

EFFECT: method is simplified by avoiding additional external reducing agents.

1 tbl, 5 dwg, 3 ex