▎ 摘　　要

NOVELTY - Preparing metal-loaded nitrogen-doped pleated graphene comprises (i) ultrasonically dispersing graphene oxide in solvent and stirring to obtain uniform suspension A, (ii) dissolving ethylenediamine-terminated polyvinylamine in solvent, adding metal salt and stirring to obtain solution B, (iii) mixing the suspension A and solution B and stirring for 5-30 minutes, (iv) transferring the resulting mixed liquid into hydrothermal reaction kettle of polytetrafluoroethylene liner for hydrothermal reaction and post-treating to obtain solid powder, (v) adding the above solids to quartz boat and introducing it into tube furnace to calcining under set conditions to improve the loading strength of certain metals, and cooling the product to room temperature to obtain load metal wrinkle-nitrogen-doped graphene. USE - The metal-loaded nitrogen-doped pleated graphene is useful in energy storage and catalysis including lithium-sulfur battery preparation, catalytic hydrogenation reduction, and catalysis of carboxylation reactions based on carbon dioxide and terminal alkyne (claimed). ADVANTAGE - The method is simple, operable and suitable for industrial production; produces metal-loaded nitrogen-doped pleated graphene which has large specific surface area, large number of folds, rich pores, and excellent structure retention.