▎ 摘　　要

NOVELTY - A noble metal nanoparticle-loaded black phosphorus graphene composite material preparing method involves ball milling black phosphorus nanosheet material with graphene nanosheet material to obtain precursor. The precursor is centrifuged with ethanol and deionized water and vacuum-dried to obtain black phosphorus graphene composite material. The composite material is dispersed in ethanol, added with stabilizing agent and metal precursor, stirred, subjected to adjust the pH to 9-11, added with reducing agent, stirred for 1-5 hours and vacuum-dried to obtain the finished product. USE - Method for preparing noble metal nanoparticle-loaded black phosphorus graphene composite material for use in fuel cell. ADVANTAGE - The method enables preparing noble metal-loaded black phosphorus graphene composite material with better effect of improving electrochemical activity and stability of catalyst of the fuel cell, in easy manner. DETAILED DESCRIPTION - A noble metal nanoparticle-loaded black phosphorus graphene composite material preparing method involves mechanically ball milling black phosphorus nanosheet material with graphene nanosheet material at a mass ratio of 1:1.5-2.5 under argon for 24-48 hours to obtain precursor. The precursor is centrifuged twice with ethanol and deionized water for 2-6 times and vacuum-dried to obtain black phosphorus graphene composite material. The black phosphorus graphene composite material is dispersed in ethanol, added with stabilizing agent and metal precursor after ultrasonic treatment, continuously stirred for 8-12 hours, subjected to adjust the pH to 9-11, added with reducing agent, stirred for 1-5 hours and vacuum-dried to obtain the finished product, where the mass ratio of the black phosphorus graphene composite material and stabilizing agent is 1:1-10, the metal in the metal precursor is platinum, palladium, gold or silver, the quality of metal in the metal precursor is 10-30 mass%, the reducing agent is potassium borohydride, sodium borohydride or hydrazine hydrate, and the mass ratio of the metal precursor and the reducing agent is 1:1-100.