摘要
采用石墨衍生物作为添加剂,在水相介质中采用球磨剥离并结合高温燉烧制备石墨烯,系统研究制备石墨烯的工艺条件。结果表明:较佳工艺条件为球磨时间为16 h,初始石墨浓度为50 g/L,研磨介质与石墨的质量比为60:1,石墨衍生物与石墨的质量比为20:lo一系列的结果表明将石墨衍生物作为添加剂利用湿法球磨可以成功制备出石墨烯,制备出的石墨烯纳米片缺陷程度低,层数大多数在5层以下,横向尺寸在1 pun左右,且制备的石墨烯的电导率为3600 S/m.
Using graphite derivatives as additives,the graphene was prepared by ball-peel stripping combined with hightemperature calcination in aqueous medium,and the process conditions for preparing graphene were systematically studied.The results show that the optimum process conditions are:ball milling time is 16 h,initial graphite concentration is 50 g/L,mass ratio of grinding media to graphite is 60-1,and mass ratio of graphite derivative to graphite is 20-1.A series of results show that graphene can be successfully prepared by wet ball milling using graphite derivatives as additives.The prepared graphene nanosheets have low defect degree,most of the layers are below 5,and the lateral dimension is about 1 jxm.The conductivity of the prepared graphene was tested at 3600 S/m.
作者
王武
席国强
郭丙炎
史晓飞
毋伟
WANG Wu;XI Guoqiang;GUO Bingyan;SHI Xiaofei;WU Wei(State Key Laboratory of Organic-Inorganic Composites and College of Chemical Engineering Beijing University of Chemical Technology,Beijing 100029,China)
出处
《中国粉体技术》
CAS
CSCD
2020年第2期48-54,共7页
China Powder Science and Technology
基金
国家自然科学基金项目，编号:21676023
关键词
水相球磨
石墨烯
行星式球磨机
wet ball milling
graphene
planetary ball mill
