▎ 摘 要
NOVELTY - Preparing graphene-based transition metal-nitrogen-carbon composite material involves adding formamide in graphene oxide. Metal salt is added and mixed uniformly. The reflux reaction is carried out at 100-130 degrees C and the reaction is completed. The solution is washed, dried and the solvent is removed to obtain the graphene-based transition metal-nitrogen-carbon composite material. USE - Method used for preparing a graphene-based transition metal-nitrogen-carbon composite material (claimed). ADVANTAGE - The method enables to prepare graphene-based transition metal-nitrogen-carbon composite material that is directly applied to the electrochemical reaction as excellent electrocatalyst materials, without being subjected to high temperature calcination, and amplification of the product is high, and has direct production feasibility.