▎ 摘　　要

Highly dispersed Pd nanoparticles (NPs) supported on graphene were successfully prepared by a one-step electrochemical codeposition approach. The as-obtained nanocomposite was very "clean" as a result of the reductant-free and surfactant-free synthesis process. The catalyst remarkably improved the electrocatalytic performance for formic acid oxidation (FAO). This facile and controllable method is of significance for the preparation of graphene-metal NPs with desirable catalytic performance. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.