▎ 摘　　要

NOVELTY - Preparation of non-noble metal ion complexation Schiff base graphene catalyst involves ultrasonically dispersing aminated graphene in dimethylformamide, forming 0.63-2.3 mg/ml suspension of aminated graphene, adding salicylaldehyde to dimethylformamide, forming salicylaldehyde dimethylformamide solution, adding suspension of aminated graphene and melamine powder, stirring, heating, filtering reaction mixture, washing, drying, dispersing obtained Schiff base graphene in dimethylformamide, adding non-noble metal ion precursor powder, stirring, heating, filtering, washing, and drying. USE - Preparation of non-noble metal ion complexation Schiff base graphene catalyst used in fuel battery with proton exchange film as electrolyte. ADVANTAGE - The method enables preparation of non-noble metal ion complexation Schiff base graphene catalyst with high catalytic activity, by simple process. DETAILED DESCRIPTION - Preparation of non-noble metal ion complexation Schiff base graphene catalyst involves dispersing graphene oxide in deionized water, forming 0.4-1.2 mg/ml suspension of graphene oxide, adding organic amine to graphene oxide dispersion, stirring at room temperature for 10-20 minutes, heating obtained organic amine-graphene oxide suspension at 80-100 degrees C for 4-6 hours, filtering reaction mixture, washing filtrate with ethanol for 4-6 times, drying aminated graphene, ultrasonically dispersing aminated graphene in dimethylformamide or dimethyl sulfoxide for 30-60 minutes, forming 0.63-2.3 mg/ml suspension of aminated graphene, adding salicylaldehyde to 10-20 ml dimethylformamide or dimethyl sulfoxide, forming salicylaldehyde dimethylformamide or dimethyl sulfoxide solution, adding suspension of aminated graphene and melamine powder, stirring, heating to 135-180 degrees C for 8-10 hours, filtering reaction mixture, washing filtrate with ethanol for 4-6 times, drying, dispersing obtained Schiff base graphene in dimethylformamide, forming 0.36-1.08 mg/ml Schiff base graphene dispersion, adding non-noble metal ion precursor powder, ultrasonically stirring for 30-60 minutes, heating at 135-150 degrees C for 4-6 hours, filtering reaction mixture, washing filtrate with ethanol for 4-6 times, and drying. The mass ratio of graphene oxide and organic amine is 1:89-186. The mass ratio of aminated graphene, melamine and salicylaldehyde is 1:3.2-10:12.5-39. The mass ratio of Schiff base graphene and non-noble metal ion precursor powder is 1:2-4.8. The graphene oxide is prepared by adding 3 g graphite powder to 600 ml solution of concentrated phosphoric acid and concentrated sulfuric acid in volume ratio of 1:9, mixing, placing obtained graphite mixture on an ice-water bath, slowly adding 18 g potassium permanganate powder, uniformly mixing, heating obtained mixture at 50 degrees C for 12 hours, slowly pouring reaction mixture into an excess of ice water, adding 30% hydrogen peroxide solution, terminating addition of hydrogen peroxide when the mixture turned to gold, filtering, alternately washing filtrate with dilute hydrochloric acid and ultrapure water and freeze-drying.