▎ 摘　　要

NOVELTY - Ultra-thin graphene-like carbon material preparation involves adding aniline, nitrogen-containing polymer and acidic solution to deionized water in a volume ratio of 1:30-60, weighing ammonium persulfate in a molar ratio of ammonium persulfate to aniline of 1:0.5-1.5, and then adding water to prepare an ammonium sulfate solution with a concentration of 0.1-0.5 mol/L, combining the prepared ammonium persulfate solution dropwise to the mixed solution at room temperature for 6-12 hours to obtain composite of polyaniline and other nitrogen-containing polymers. The compound is transferred to a high-pressure hydrothermal kettle with hydrogen peroxide solution in an oven at 120-160 degrees C for 6-12 hours to get the product after hydrothermal. The hydrothermal product is filtered and washed with water, placed in a vacuum oven and dried at 80-120 degrees C for 8-12 hours, and then dried for 2-4 hours to obtain the powder sample. USE - Method for preparing ultra-thin graphene-like carbon material for supercapacitors (claimed). ADVANTAGE - The method prepares the ultra-thin graphene-like carbon material for supercapacitors in a simple, cost-effective and eco-friendly manner with good electrochemical performance of supercapacitors. DETAILED DESCRIPTION - Ultra-thin graphene-like carbon material preparation involves adding aniline, nitrogen-containing polymer and acidic solution to deionized water in a volume ratio of 1:30-60, weighing ammonium persulfate in a molar ratio of ammonium persulfate to aniline of 1:0.5-1.5, and then adding water to prepare an ammonium sulfate solution with a concentration of 0.1-0.5 mol/L, combining the prepared ammonium persulfate solution dropwise to the mixed solution at room temperature for 6-12 hours to obtain composite of polyaniline and other nitrogen-containing polymers. The compound is transferred to a high-pressure hydrothermal kettle with hydrogen peroxide solution in an oven at 120-160 degrees C for 6-12 hours to get the product after hydrothermal. The hydrothermal product is filtered and washed with water, placed in a vacuum oven and dried at 80-120 degrees C for 8-12 hours, and then dried for 2-4 hours to obtain the powder sample. The powder sample is calcined at 700-1000 degrees C for 2-6 hours, and then cooled at room temperature to obtain calcined carbon material. The obtained calcined carbon material is ground for 1-3 hours to obtain the product ultra-thin graphene-like carbon material.