▎ 摘　　要

NOVELTY - Graphene, is claimed. The graphene edges have active groups comprising amino group. USE - The graphene is useful in graphene hydrosol and graphene powder (all claimed). ADVANTAGE - The graphene utilized in graphene hydrosol prevents the hydrosolution capsule formation of graphene in organic solvent, has good stability. The method has simple, and easy operation procedure, and low requirement of device material; and is environmental friendly. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) graphene hydrosol, prepared by dissolving graphene in water, to obtain graphene hydrosol-containing 0.001-100 mg/ml graphene; (2) graphene powder comprising graphene and graphene hydrosol, which are dried to obtain graphene powder, where graphene powder is re-dispersed in water, to form graphene hydrosol; (3) preparing graphene comprising subjecting graphite to electrochemical plugging layer peeling off, to obtain electrolyte and dispersing graphene in electrolyte electrochemical plugging layer peeling off, to obtain the final product-containing amino acid and inorganic salt; and (4) an electrochemical intercalation peeling device utilized in the above mentioned method, comprising power supply, an electrolyte cell disposed with at least one electrode, where at least one pair of electrodes are placed in electrolyte cell, and a first lead for connecting cathode electrode to the power source, and a second wire used for connecting anode electrode to power source, where first lead and/or a second lead are set with at least two pin-outs, whose ends are connected to electrode, and a reaction electrode and a counter electrode in electrolytic cell are arrangement arranged and linearly spaced, circumferentially spaced arrangement, or circularly set on the electrode uniformly distributed on the same circumference, and fixed calipers are set on the electrolyte, and has marked distance scale, and a clamp is fixed to the electrode, and a bath which is set on outer side of the electrolyte cell, used for controlling the temperature of electrolyte cell, and a water level sensor for controlling the water level in the electrolyte cell. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the electrochemical intercalation peeling device utilized in the above mentioned method.