A new approach to fabricate graphene nanosheets in organic medium: combination of reduction and dispersion

被引：226
作者：
Che, Jianfei [1 ]
Shen, Liying [1 ]
Xiao, Yinghong [1 ,2 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210014, Peoples R China
[2] Nanjing Normal Univ, Jiangsu Key Lab Biofunct Mat, Nanjing 210097, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 09期
关键词：
EXFOLIATED GRAPHITE OXIDE; TRANSPARENT CONDUCTORS; AQUEOUS DISPERSIONS; SUSPENDED GRAPHENE; CHEMICAL-REDUCTION; SHEETS; FILMS; NANOPLATELETS; SOLVENTS; CARBON;
D O I：
10.1039/b922667b
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The direct dispersion of graphene nanosheets (GNS) in an organic medium, without assistance of dispersing agents, has been considered to be an insurmountable challenge. Herein we report a new approach to the fabrication of GNS by ethylenediamine (EDA) reduction in N, N-dimethylformamide (DMF). By this method, chemical reduction as well as dispersion of GNS can be carried out in one step. Characterization indicated that the bulk of oxygen-containing functional groups were removed from graphene oxide, and stable DMF colloidal suspensions containing homogeneously dispersed GNS were successfully obtained. Our findings make it possible to prepare graphene-based nanocomposites using a quick and low-cost solution processing technique.
引用
收藏
页码：1722 / 1727
页数：6
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