▎ 摘　　要

NOVELTY - Preparing platinum cobalt(Pt/Co)-nitrogen-graphene nanosheet (GNS) catalyst, involves synthesizing zeolite imidazole ester framework material ZIF-8, dispersing the cobalt salt, platinum salt solution and ZIF-8 in the solution, stir, centrifuging, and vacuum dry to obtain platinum cobalt(Pt/Co)-zeolitic imidazolate frameworks (ZIF)-8. The PtCo-ZIF-8 is put into a tube furnace and calcinate to obtain PtCo-N-GNS supported by nitrogen-doped carbon nanomaterials. The obtained material is soaked in an acid solution to obtain a high-performance catalyst PtCo-N-GNS. The catalyst comprises a two-dimensional porous nitrogen-doped carbon and a platinum cobalt(Pt/Co) alloy and metal cobalt coated in the porous nitrogen-doped carbon. USE - Method for preparing platinum cobalt(Pt/Co)-nitrogen-graphene nanosheet (GNS) catalyst used in catalytic reaction of an ethanol fuel cell, where ethanol oxidation reaction occurs at anode and oxygen reduction reaction occurs at cathode (claimed). ADVANTAGE - The method enables to prepare platinum cobalt(Pt/Co)-nitrogen-graphene nanosheet (GNS) catalyst which is modified on a glassy carbon electrode and tested by cyclic voltammetry and linear scanning voltammetry. The quality activity of the optimal material for oxygen reduction and ethanol oxidation is simpler than the process, cost-effective, and shows much higher catalytic activity and durability than commercial platinum/carbon catalysts, and has good application prospects.