▎ 摘　　要

PdCo bimetallic nanoparticles (NPs) were decorated over three-dimensional graphene (3DG) in a facile manner by reducing palladium chloride and cobalt chloride in the presence of ethylene glycol as reducing, stabilizing and dispersing agent. The PdCo NPs-3DG nanocomposite was characterized using Raman, X-ray photoelectron and energy-dispersive X-ray spectroscopies, X-ray diffraction and transmission electron microscopy. The obtained catalyst can act as an efficient catalyst for Sonogashira cross-coupling reactions in aqueous media.