▎ 摘　　要

NOVELTY - A graphene macroscopic body is prepared by preparing 4.5-8.8 mg ml-1 neutral graphene oxide solution, adding 2 times the volume 0.01-0.45 mol L-1 sulfuric acid solution, uniformly mixing, placing mixed liquid in reaction container, reacting at 180 degrees C for 3-15 hours to obtain graphene hydrogel, and drying in oven at 30 degrees C. USE - Preparation of graphene macroscopic body for supercapacitor with adjustable pore (claimed). ADVANTAGE - Preparation method is simple and low in cost, and obtained graphene macroscopic body has capacitance value of 175-322 Fg-1 at 100 mAg-1 electric current density and exhibits porosity-dependent electrochemical properties in supercapacitor. DESCRIPTION OF DRAWING(S) - The drawing shows a process flow chart of preparing graphene macroscopic body. (Drawing includes non-English language text).