▎ 摘　　要

A simple and convenient procedure has been reported for the preparation of high dispersion Pd nanoparticles on a graphene-like carbon (GLC) surface functionalized by 9-amino-1-azabenzanthrone (AABZ). Catalyst activity for methanol electro-oxidation in fuel cells was investigated by cyclic voltammetry in alkaline medium. It was observed that the forward peak current density of Pd-AABZ/GLC catalyst is 770 A g(-1) Pd, which is 1.9 and 1.2 times higher than that of the Pd on commercial carbon black and reduced graphene oxide. The current at 3600 s of the chronoamperometric experiments for the Pd-AABZ/GLC catalysts is 230 A g(-1) Pd, which is 2.54 times higher than that of Pd/XC-72 (Pd/commercial Vulcan XC-72 carbon black). Pd-AABZ/GLC composite exhibits superior electro-catalytic activity toward methanol oxidation and is a promising candidate for application in direct methanol fuel cells. Besides, these findings will be propitious to the use of GLC as catalyst carrier for direct methanol fuel cells. (C) 2013 Elsevier B.V. All rights reserved.