▎ 摘　　要

NOVELTY - Preparation of alkynylated graphene-loaded nano-palladium catalyst composite hydrogen absorbing material, comprises preparing alkynylated graphene by chemical reaction of carboxyl group, hydroxyl group and epoxy functional group on surface of graphene with alkynyl modifier; dispersing alkynylated graphene in solvent, adding divalent palladium salt and reducing agent into solvent, and reacting at 30-150 degrees C for 10-30 minutes; and centrifuging. USE - Method for preparing alkynylated graphene-loaded nano-palladium catalyst composite hydrogen absorbing material. ADVANTAGE - The material improves mechanical properties, thermal properties and barrier properties of polymer, and reduces hydrogen content in closed environment at room temperature and atmospheric pressure to low level.