FIELD: chemistry.
SUBSTANCE: disclosed is device (1) for expansion of graphite (2) to graphene (7) with at least one container (10) provided for receiving electrolyte, at least one anode (4) and at least one cathode (3), where cathode (3) contains a diamond or consists of it. Also disclosed is a method of expanding graphite (2) to graphene (7), in which particles of graphite (2) and at least one electrolyte are introduced into at least one container (10) and expanding graphite (2) by applying electric voltage (6) to at least one anode (4) and at least one cathode (3), where cathode (3) contains or consists of diamond, and hydrogen is obtained at the cathode.
EFFECT: technical result is obtaining particles of average thickness of 10 air strata or less.
17 cl, 16 dwg, 2 tbl
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