▎ 摘　　要

NOVELTY - Manufacture of membrane-electrode-gas diffusion layer (MEA-GDL) assembly based on plasma-deposited graphene nanowalls involves preparing two stable microporous superhydrophobic electroconductive layers by depositing vertical graphene films on two sacrificial substrate layers by radiofrequency plasma-assisted chemical deposition in vapor phase, evenly spraying catalyst ink directly on the surface of two previously made vertical graphene wall films, drying the ink to obtain a catalyst layer, thermally transferring the microporous layers of vertical graphene coated with platinum-based catalysts on either side of a Nafion (RTM: persulfonate/polytetrafluoroethylene) membrane (A) in the form of hydron to a low temperature of 90-125 degrees C, and detaching the sacrificial substrate layers such that the integral graphene films coated with the catalyst layers remain attached on either side of the membrane (A). USE - Manufacture of membrane-electrode-gas diffusion layer (MEA-GDL) assembly used for fuel cell. DETAILED DESCRIPTION - Manufacture of membrane-electrode-gas diffusion layer (MEA-GDL) assembly based on plasma-deposited graphene nanowalls involves preparing two stable microporous superhydrophobic electroconductive layers by depositing vertical graphene films on two sacrificial substrate layers by radiofrequency plasma-assisted chemical deposition in vapor phase, evenly spraying catalyst ink directly on the surface of two previously made vertical graphene wall films, drying the ink to obtain a catalyst layer, thermally transferring the microporous layers of vertical graphene coated with platinum-based catalysts on either side of the Nafion (RTM: persulfonate/polytetrafluoroethylene) membrane (A) in the form of hydron (H+) to a low temperature of 90-125 degrees C, and detaching the sacrificial substrate layers such that the integral graphene films coated with the catalyst layers remain attached on either side of the membrane (A) to obtain a MEA-GDL assembly. The catalyst layer contains 0.05-0.5 mg catalyst cm-2 on the anode, 0.1-1 mg catalyst cm-2 on the cathode, and contains pure platinum as nanometric powder, 20-80% platinum on carbon support, or platinum alloy such as 60-70% platinum and 30-40% copper, 50-60% platinum and 40-50% ruthenium, 70-80% platinum and 20-30% cobalt, 60-80% platinum and 20-40% nickel, 90-95% platinum and 5-10% chromium.