One-step solid state preparation of reduced graphene oxide

被引:170
作者
Shen, Jianfeng [1 ]
Li, Tie [1 ]
Long, Yu [1 ]
Shi, Min [1 ]
Li, Na [1 ]
Ye, Mingxin [1 ]
机构
[1] Fudan Univ, Ctr Special Mat & Technol, Shanghai 200433, Peoples R China
关键词
EXFOLIATED GRAPHITE OXIDE; PHOTOCATALYTIC REDUCTION; ELECTRONIC-STRUCTURE; AQUEOUS DISPERSIONS; SHEETS; NANOPARTICLES; NANOSHEETS; COMPOSITE; NANOPLATELETS; ROUTE;
D O I
10.1016/j.carbon.2012.01.019
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
We have developed an easy and scalable chemical reduction method assisted by microwave irradiation for the synthesis of reduced graphene oxide (RGO) nanosheets in solid state. The as-synthesized RGO is characterized by Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetry, X-ray diffraction, X-ray photoelectron spectroscopy and atomic force microscopy. It is revealed that the bulk of the oxygen-containing functional groups are removed from graphene oxide with this one-step reduction method and monolayer RGO sheets are got from its N,N-dimethyl formamide solution. It is found that the ammonium bicarbonate plays a key role in the preparation of RGO. Considering the analysis results, a mechanism for the formation of RGO is proposed. Besides being eco-friendly, when compared to previous chemical techniques, this process has several advantages like low cost, simplicity and short processing times, which may find practical applications in the preparation of graphene-based composites. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2134 / 2140
页数:7
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