Herein, we developed a facile one-pot aqueous method to fabricate well-distributed bimetallic AuPd nanoclusters supported on graphitic carbon nitride (AuPd NCs/g-C3N4). The method is simple, rapid, without using any specific additives. The nanocomposites displayed enlarged electrochemically active surface area. The obtained nanocatalyst exhibited the more positive onset and half-wave potentials at 1.09 and 0.98 V (vs. NHE) for oxygen reduction reaction, respectively, along with the enhanced kinetic current density of 1.86 mA cm(-2). Meanwhile, the catalyst showed the improved catalytic activity for hydrogen evolution reaction with the onset potential of -29 mV (vs. NHE) and small Tafel slope of 47 mV dec(-1). These results demonstrated the improved electrocatalytic performance of the catalyst in contrast with commercial Pt/C (50%) and Pd/C (20%) catalysts. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.