▎ 摘　　要

Pulse electrodeposition of Pt nanocluster catalysts on graphene oxide (GO)-carbon paper composite electrode for proton exchange membrane fuel cells has been investigated. The primary particle size was found to be 100-300 nm for the urchin-like cluster that was composed of a number of secondary grains. Experimental results show that the GO sheets decorated with the Pt clusters displays low-equivalent series resistance (-2.60 Omega) and high-power density (-1.3 kW g(-1) at 60 degrees C). Hence, such a catalyst electrode, consisting of the GO sheets and the metallic Pt clusters, is proved to have several advantages such as good dispersion of catalysts and high catalytic activity. (C) 2011 Elsevier B.V. All rights reserved.