In the present study a simple one stage strategy was used for preparing of N-doped graphene which decorated with Pt-nanoparticles using electrochemical procedure with graphite rod and Pt wires as electrodes and acetonitrile as solvent and nitrogen source reagent. In compared to commercial Pt-carbon ( 10% Pt), the prepared Pt/N-Gr nanocomposite not only shows excellent electrocatalytic activity and long durability toward oxygen reduction reaction (ORR) but also its electrocatalytic activity and stability toward oxidation of usual anodic fuels such as methanol, ethanol, hydrazine and formic acid is remarkably improved. In addition the poisoning and deactivation effects of fuels and their intermediate and oxidation products toward electrocatalytic activity of proposed electrocatalyst during long using time are negligible. The developed method in this study can be applied for preparation of Pt/N-Gr or other novel metal decorated N-Gr in large scale which used in different applications.
