▎ 摘　　要

NOVELTY - Preparation of graphene-supported palladium-nickel nano-alloy catalyst, involves preparing graphene ethylene glycol slurry and aqueous solution of palladium chloride by Hummers method, stirring and mixing at 25 degrees C for 60 minutes, adding nickel nitrate solid, dissolving sodium glutamate solid, dripping potassium hydroxide in ethylene glycol solution, adjusting pH to 11-13, stirring at 20-25 degrees C, transferring into a water heat kettle, performing hydrothermal reaction at 160 degrees C for 6 hours, washing with water and ethanol, and drying. USE - Preparation of graphene-supported palladium-nickel nano-alloy catalyst used for catalytic reduction of nitroaromatics used for preparing aryl amines (claimed). ADVANTAGE - The graphene-supported palladium-nickel nano-alloy catalyst has excellent catalytic effect, achieves efficient catalysis while reducing the use of palladium and reducing palladium poisoning, and achieves nitroaromatic compounds conversion rate of more than 95%, arylamine selectivity of 98%, and achieves applicability of variety of nitroaromatic compounds. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for preparing aryl amines by catalytic reduction of nitroaromatics using graphene-supported palladium-nickel nano-alloy catalyst, which involves adding nitroaromatic compounds and graphene-supported palladium-nickel nano-alloy catalyst in a reaction apparatus in a mass ratio of 20-100:1, adding solvent N,N-dimethylformamide, introducing hydrogen under vacuum conditions at a pressure of 0.3 MPa and heating at 60-100 degrees C for 4-12 hours.