▎ 摘　　要

NOVELTY - Formation of electroconductive composite involves applying graphene oxide to a non-conductive porous substrate(s), and reducing the graphene oxide to graphene via an electrochemical reaction. USE - Formation of electroconductive composite by performing electrochemical reaction in electrochemical cell (claimed). ADVANTAGE - The method efficiently forms the electroconductive composite by reducing graphene oxide to graphene. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for electrochemical cell (10), which comprises an electrode (13) comprising a layered electrocatalyst(s) comprising the non-conductive porous substrate coated with graphene oxide, an active metal layers (L1) and (L2) comprising a conductive metal which is in contact with the non-conductive porous substrate(s), an electrode (15) comprising a conductor, an ion-conductive medium (17), an electrical current in communication with the electrode (13), and optionally a electrode (c) having a predetermined electrode potential. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the simplified electrochemical cell. Electrochemical cell (10) Electrodes (13,15) Ion-conductive medium (17) Separator (18) Voltage source (19)