▎ 摘　　要

NOVELTY - Manufacture of sheet layered copper-based nitrogen-doped graphene catalyst involves (i) taking graphene oxide slurry as a raw material and urea as a nitrogen source, adding graphene oxide slurry into a high-pressure reaction kettle, adding deionized water and urea, mixing, and ultrasonically dispersing, transferring the high-pressure reaction kettle into an oven for heating at 120-180℃ for 6-12 hours, naturally cooling, washing the obtained product to be neutral using deionized water, filtering, drying, and grinding to obtain sheet shaped nitrogen-doped graphene carrier powder, and (ii) dispersing the obtained powder into deionized water to form a suspension, ultrasonically dispersing, adding copper nitrate and sodium carbonate aqueous solution, stirring and reacting for 3-6 hours at room temperature, filtering, washing and drying the obtained product, roasting in an argon atmosphere at 180-240℃ for 2-4 hours, and cooling to room temperature. USE - Manufacture of sheet layered copper-based nitrogen-doped graphene catalyst used in electrocatalytic reduction of carbon dioxide to prepare ethanol (all claimed) used as energy source material for medical treatment and chemical applications. ADVANTAGE - The method provides sheet-layered copper-based nitrogen-doped graphene catalyst having excellent stability, activity, and applicability. The catalyst in the electro-catalytic reduction of carbon dioxide provides ethanol, at -0.8V electrolytic voltage, liquid product total Faraday efficiency of 59.1%, the ethanol Faraday efficiency reaches 34.1%, and ethanol selectivity is more than 55%, after 24 hours of electrolysis. The total Faraday efficiency of the liquid product reaches more than 50%, and the current density is constant. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for application of lamellar copper-based nitrogen-doped graphene catalyst.