▎ 摘　　要

NOVELTY - Preparation of graphene-based vanadium pentoxide nanowire super capacitor electrode material involves mixing 2500-3500 pts. wt. deionized water and 1-10 pts. wt. graphene oxide, ultrasonically dispersing, adding 20-35 pts. wt. metavanadate, 35-60 pts. wt. polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer and 120-180 pts. wt. inorganic acid, stirring, hydrothermally reacting, washing with water 3-5 times to obtain nanowire composite, dispersing composite in water, adding reducing agent, heating, and washing with water 3-5 times. USE - Preparation of graphene-based vanadium pentoxide nanowire super capacitor electrode material. ADVANTAGE - The graphene-based vanadium pentoxide nanowire super capacitor electrode material having high electroconductivity and large specific surface area is prepared economically by simple method, and provides capacitor having high power characteristics and high energy density. DETAILED DESCRIPTION - Preparation of graphene-based vanadium pentoxide nanowire super capacitor electrode material involves mixing 2500-3500 pts. wt. deionized water and 1-10 pts. wt. graphene oxide, ultrasonically dispersing for 10-30 minutes to obtain a stable dispersion of graphite oxide, adding 20-35 pts. wt. metavanadate, 35-60 pts. wt. polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer (PEO20-PPO70-PEO20) and 120-180 pts. wt. 2 mol/L inorganic acid, stirring at room temperature for 0.2-5 hours, placing mixture in autoclave, hydrothermally reacting at constant temperature, washing with deionized water 3-5 times to obtain graphene oxide group vanadium pentoxide nanowire composite, dispersing composite in 100-1000 pts. wt. deionized water, adding 1-20 pts. wt. reducing agent, stirring uniformly, heating, and washing with deionized water 3-5 times.