▎ 摘　　要

The co-immobilization of palladium and ruthenium complexes with pyrene-tagged N-heterocyclic carbene ligands onto reduced graphene oxide allows the formation of a highly efficient catalyst for the hydrodefluorination of a series of fluoroarenes. This procedure constitutes an easy one-pot preparation of materials with homogeneously distributed polymetallic catalysts. The catalytic system can be recycled up to 12 times without measurable loss of activity. The activity of the catalyst is attributed to the synergistic action of the two metals.