▎ 摘　　要

The electrochemically deposited palladium nanoparticles on nafion-graphene support showed an excellent catalytic activity for Suzuki coupling reactions. The as obtained catalyst was characterized by SEM, TEM, EDAX, XRD, and TGA. The particle size of palladium nanoparticles (Pd NPs) determined from TEM was in the range of 4-12 nm. The mean diameter of Pd NPs was found to be 8.1 +/- 1.9 nm. The recyclability of the catalyst was examined and it did not show any significant loss of catalytic activity for five consecutive cycles. (C) 2013 Elsevier Ltd. All rights reserved.