▎ 摘　　要

Craphene-supported PdPt nanocomposite films can be deposited on the glassy carbon electrodes through two-step electrochemical method. The as-prepared catalyst, which exhibits high electrocatalytic ability in methanol oxidation and good tolerance to the intermediates generated during methanol oxidation, is very pure as a result of the surfactant-, reductant- and fixative-free formation process. This simple, straightforward, and effective method is of significance for the facile preparation of Pd-based catalysts on underlying electrodes directly. (c) 2012 Elsevier B.V. All rights reserved.