▎ 摘　　要

NOVELTY - The nitrogen-doped graphene has graphene and nitrogen-containing substance, where the nitrogen containing substance comprises an amino nitrogen, and has an infrared characteristic peak of R-C = N-R, C-N, N-H, and nitrogen is selected from triethylamine, aniline, urea, melamine, amino acid and biuret. The nitrogen-doped graphene is a disordered solid structure formed by a combination of a layer of graphene and a pleated sheet layer. USE - Nitrogen-doped graphene. ADVANTAGE - The nitrogen-doped graphene has good solubility in the polar solvent, and has good wetting property and sensitive chemical reaction activity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a preparation method of nitrogen-doped graphene; (2) a modified glassy carbon electrode. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the nitrogen-doped graphene. (Drawing includes non-English language text)