▎ 摘　　要

NOVELTY - Preparation of modified graphene oxide supported nickel-cobalt bimetallic nanocatalyst comprises dropping ethylenediamine solution to graphene oxide solution, stirring at room temperature for 30 minutes, heating to 30-40 degrees C, stirring for 1 hour, filtering, washing and drying to obtain ethylenediamine-modified graphene oxide as catalyst carrier; and dispersing in distilled water, ultrasonically oscillating for 30 minutes, separately adding cobalt ion (Co2+) and nickel ion (Ni2+), magnetically stirring for 20 minutes, adding sodium borohydride, stirring until no more gas generated. The nanocatalyst has structure of Nix-Co1-x/ethylenediamine-modified graphene oxide, where x is 0.1-0.9. The nickel-cobalt catalyst is uniformly distributed on ethylenediamine-modified graphene oxide. USE - The method is for preparation of modified graphene oxide supported nickel-cobalt bimetallic nanocatalyst. ADVANTAGE - The method avoids agglomeration of catalyst particles during reduction process, binds the ethylenediamine to catalyst particles through cage effect of ethylenediamine which makes the catalyst particles difficult to fall off, and improves the catalytic activity and cycle catalytic performance of the catalyst.