Fabrication and modification of graphene Supports for Platinum Electro catalyst using in Proton Exchange Membrane Fuel Cells

Proton exchange membrane fuel cells (PEMFCs) are one of the most promising clean energy conversion devices due to their high conversion efficiency, low/zero emission, and high power/energy densities. Nitrogen doping has been an effective way to tailor the properties of graphene and render its potential use for various applications. We developed a simple chemical method to obtain bulk quantities of N-doped, reduced grapheme oxide (GO) powder through thermal annealing of GO in ammonia and hydrazine. Oxygen reduction and nitrogen doping were achieved simultaneously under the hydrothermal reaction. Electrochemical measurements show that the graphene support and especially nitrogen doped graphene support has the better activity than Vulcan