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

页码：1722 / 1727

页数：6

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