▎ 摘　　要

NOVELTY - Graphene strip preparation involves using Hummers method to obtain oxidized graphite. A selective modified line detect is used on surface containing oxygen function group during the graphite oxidization to prepare graphene with surface line defect by high-temperature quick expansion striping, heat reduction, solvent dispersion and centrifugal separation. Graphene strip is cut by ultrasonic wave cutting and chemical reduction process. A high-speed centrifugal method is used to remove uncut big graphene to obtain graphene strip with controllable layer number and width. USE - Method for preparing graphene strip (claimed). ADVANTAGE - The method provides graphene strip in a simple and cost-effective.