Electrochemical preparation of few layer-graphene nanosheets via reduction of oriented exfoliated graphene oxide thin films in acetamide-urea-ammonium nitrate melt under ambient conditions

被引:26
作者
Dilimon, V. S. [1 ]
Sampath, S. [1 ]
机构
[1] Indian Inst Sci, Dept Inorgan & Phys Chem, Bangalore 560012, Karnataka, India
关键词
Molten electrolyte; Acetamide; Urea; Ammonium nitrate melt; Graphene oxide; Electrochemical reduction; Atomic force microscopy; GRAPHITE OXIDE; RAMAN-SPECTROSCOPY; MONOLAYERS; SHEETS; ELECTRONICS; SPECTRA; CARBON;
D O I
10.1016/j.tsf.2010.11.019
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electrochemical reduction of exfoliated graphene oxide, prepared from pre-exfoliated graphite, in acetamide-urea-ammonium nitrate ternary eutectic melt results in few layer-graphene thin films. Negatively charged exfoliated graphene oxide is attached to positively charged cystamine monolyer self-assembled on a gold surface. Electrochemical reduction of the oriented graphene oxide film is carried out in a room temperature, ternary molten electrolyte. The reduced film is characterized by atomic force microscopy (AFM), conductive AFM, Fourier-transform infrared spectroscopy and Raman spectroscopy. Ternary eutectic melt is found to be a suitable medium for the regulated reduction of graphene oxide to reduced graphene oxide-based sheets on conducting surfaces. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:2323 / 2327
页数:5
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