▎ 摘　　要

NOVELTY - Preparing electrochemically synthesized ammonia catalyst based on graphene quantum dot comprises (a) mechanically mixing the graphite powder block and molten salt catalyst, (b) pre-heating the mixture obtained in the (a) and insulating, (c) directly heating the mixture obtained in the step (b) and insulating, (d) cooling the mixture obtained in the step (c) to room temperature, and then soaking in water to obtain a suspension, and (e) carrying out centrifugal separation, where the molten salt catalyst is cesium carbonate catalyst and molten salt mixture containing iron and molybdenum. USE - The method is useful for preparing electrochemically synthesized ammonia catalyst based on graphene quantum dot. ADVANTAGE - The catalyst has low cost, high degree of graphitization, good quality, and has high catalytic efficiency for synthetic ammonia; and is suitable for large-scale production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for electrochemically synthesized ammonia catalyst based on graphene quantum dot prepared by the above method.