Synthesis and characterization of platinum nanoparticles on carbon nanosheets with enhanced electrocatalytic activity toward methanol oxidation

► The CNS-supported Pt NPs have been firstly synthesized by one-step electrodeposition. ► The as-synthesized Pt NPs included mainly the metallic Pt of 68.9%, which plays a main role in methanol oxidation. ► The Pt/CNSs exhibited better electrocatalytic performance than the Pt/SWNTs fabricated under same conditions. ► The CNSs are promising catalyst support for fuel cells.