▎ 摘　　要

NOVELTY - Producing graphene-palladium nanocomposite, comprises (a) preparing graphene oxide, (b) reducing graphene oxide, (c) adding reduced graphene oxide and palladium precursor into a reactor, and producing mixture under supercritical carbon dioxide, (d) reducing pressure of the reactor, and obtaining graphene oxide by reducing the mixture into with palladium through introducing hydrogen. USE - The method is useful for producing graphene-palladium nanocomposite (claimed). ADVANTAGE - The method avoids generation of unwanted by-products, reduces production cost of catalyst, is environmentally friendly, does not require separate processes for processing organic solvent, and uses Suzuki cross-coupling reaction.