The invention discloses a preparation method of a
nitrogen-
doped graphene material containing 3, 5-diamino-1H-1, 2, 4-
triazole. The method comprises the following steps: dispersing
graphene in deionized water, adding a 3, 5-diamino-1H-1, 2, 4-
triazole ethanol solution into the
graphene solution, heating the solution at 50-100 DEG C for 30-60 minutes, cooling the solution to 0-4 DEG C,
drying the solution to obtain a
graphene-coated 3, 5-diamino-1H-1, 2, 4-
triazole eutectic material,
grinding the 3, 5-diamino-1H-1, 2, 4-triazole eutectic material into
powder, and heating the
powder at 500-800 DEG C for 3-5 hours to obtain a
nitrogen-
doped graphene material. According to the preparation method disclosed by the invention, 3, 5-diamino-1H-1, 2, 4-triazole is utilized to react with graphene, sothat the graphene material with relatively
high nitrogen doping content is obtained. According to the material, the graphene uniformly coats the surface of the 3, 5-diamino-1H-1, 2, 4-triazole
crystal, and additives such as an
adhesive and the like are not needed, so that the surface performance of the 3, 5-diamino-1H-1, 2, 4-triazole
crystal is completely maintained.