GRAPHENE, GRAPHENE FILMS AND COATINGS PRODUCTION METHOD Russian patent published in 2018 - IPC C01B32/184 C25B1/00 B82B3/00 B82Y40/00 

FIELD: nanotechnologies.

SUBSTANCE: invention relates to the nanotechnology, and can be used in the composites, electrochemical and electrophysical devices manufacturing. Electrodes are placed into the carbon source containing electrolyte. As the anode, electrically conductive materials are used, such as iron, aluminum, titanium, molybdenum, copper, and stainless steel. Also, as the anode, non-conductive material can be used, provided with the electrically conductive material coating, such as iron, aluminum, titanium, molybdenum, copper, and stainless steel. As the electrolyte, the HCO₃, H₃C₂O₂, CO₃ anions containing salts aqueous solutions are used, either individually or as the mixture. As the HCO₃ and/or CO₃ anions containing salts, water soluble sodium and/or potassium salts or mixture thereof can be used, and as the salts, containing the H₃C₂O₂ anions are the water-soluble salts K, Na, Ba, Cu, Mg, Cr, Fe⁺⁺, Fe⁺⁺⁺, Ni, Mn, Zn, Ag, Sn, Co or mixtures thereof. Through the electrolyte a constant or pulsed electric current is passed.

EFFECT: produced graphene, graphene films and coatings on the substrate in the industrial scale without the use of high temperatures, protective atmospheres and expensive salts.

6 cl, 7 dwg