▎ 摘　　要

NOVELTY - Preparing highly conductive and high dispersion graphene comprises (i) adding deionized water and graphene to a round bottom flask equipped with condenser, then magnetically stirring at room temperature for certain time, adding buffer solution to adjusting the pH of the reaction solution, and adding persulfate, dissolving, replacing with ultrapure nitrogen to remove oxygen and carbon dioxide dissolved in deionized water, (ii) heating to make the reaction solution reach the reaction temperature and taking persulfate anion (S2O82-) continuously generates sulfate radicals to oxidizing the edges of the graphene, and (iii) reacting, subjecting the obtained edge graphene oxide to ultrasonic treatment and centrifugal washing in sequence to obtain stable dispersed graphene dispersion liquid. USE - The method is useful for preparing highly conductive and high dispersion graphene. ADVANTAGE - The method: does not seriously damage the graphite structure of the substrate; and is simple, environmentally friendly and suitable for industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for highly conductive and high dispersion graphene obtained by above method.