▎ 摘　　要

NOVELTY - Nano copper alloy/nitrogen doped graphene composite catalyst comprises a composite of a nano copper alloy particle and a nitrogen doped graphene material, where the nano copper alloy particles are uniformly supported on the surface of the nitrogen-doped graphene of the sheet. The nano copper alloy is an alloy of copper (Cu) and one or two of nickel (Ni), iron (Fe), cobalt (Co), magnesium (Mg), and zinc (Zn) metals. The nano copper alloy/nitrogen doped graphene composite catalyst has 9-26 wt.% alloy. USE - Nano copper alloy/nitrogen doped graphene composite catalyst. ADVANTAGE - Nano copper alloy/nitrogen doped graphene composite catalyst enables to provide excellent electrochemical properties as a carrier, exert synergistic catalytic performance between the carrier and the nano-copper alloy catalyst effectively. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing a nano-copper alloy/nitrogen-doped graphene composite catalyst involves mixing vegetable oil and nitrogen-containing compound by grinding and stirring for more than 30 minutes to obtain mixture A, placing mixture A under an inert atmosphere at a heating rate of 1-8 degrees C/minute, heating to 800-1200 degrees C for pyrolysis for 2-8 hourrs, obtaining a nitrogen-doped graphene material, preparing an impregnation liquid containing metal ions of nano-copper alloy, impregnating nitrogen-doped graphene into an immersion liquid, dispersing ultrasonically after 2-10 hours, transferring to a vacuum of 50-80 degrees C for 5-10 hours to obtain a powder, heating the powder to 300-500 degrees C at a heating rate of 1-5 degrees C/minute in a reducing atmosphere for pyrolysis for 2-5 hours, cooling, obtaining a nano-copper alloy / nitrogen-doped graphene composite catalyst.