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)

Abstract: Using graphite derivatives as additives, the graphene was prepared by ball-peel stripping combined with high-temperature 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 μm. The conductivity of the prepared graphene was tested at 3 600 S/m.

Keywords: wet ball milling; graphene; planetary ball mill

文章编号:1008-5548(2020)02-0048-07

DOI:10.13732/jissn.1008-554-82020.02.008

中图分类号：TB34                                文献标志码：A

收稿日期： 2019-10-22，修回日期：2019-11-01，在线出版时间：2019-12-30 15:18。

基金项目：国家自然科学基金项目，编号：21676023。

第一作者简介：王武(1994—)，男，硕士研究生，研究方向为规模化石墨烯制备技术。E-mail：18811761914@163.com。

通信作者简介：毋伟(1966—)，男，博士，教授，博士生导师，研究方向为微纳米粉体制备及应用。E-mail：wuwei@mail.buct.edu.cn。