▎ 摘　　要

NOVELTY - Electrochemical process (p1) comprises: immersing in electrolyte-free electrochemical bath, comprising water and organic liquid, anode electrode comprising graphite and a cathode electrode comprising an electrically conductive material; and applying an electrical potential between the anode and the cathode to cause Joule heating and oxidation of the water and cleavage of graphene by embrittlement from the graphite of the anode forming graphene/graphene oxide and at least one of convective migration and electrical migration of the cleaved graphene in the bath. USE - The process is useful for producing graphene/graphene oxide, graphene/graphene oxide metal composites, metal/graphene composite (all claimed) and graphene quantum dots, that are used for coating substrates, such as metals, semiconductors and electronic devices. ADVANTAGE - The process: produces graphene/graphene oxide metal composite coated substrates in a single step process involving no secondary purifications; does not require external heating of the bath solution; and allows concurrent deposition of graphene/graphene oxide on the substrate electrode for technological applications. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) electrochemical process (p2) for producing graphene/graphene oxide metal composites comprising immersing in an electrolyte-free electrochemical bath, comprising water and an organic liquid, an anode electrode comprising graphite and a metal component and a cathode electrode comprising an electrically conductive material and applying an electrical potential between the anode and the cathode sufficient to cause Joule heating and oxidation of the water and the metal component, formation of ions of the metal, and cleavage of graphene by embrittlement from the graphite anode forming a graphene/graphene oxide metal composite and at least one of convective migration and electrical migration of the cleaved graphene and formed metal ions in the bath; and (2) an electrochemical process for producing a metal/graphene composite comprising immersing in an electrolytic bath, comprising a graphene/graphene oxide solution and an electrolyte, an anode electrode and a cathode electrode comprising an electrically conductive material and applying an electrical potential between the anode and the cathode to cause deposition of a metal/graphene composite.