期刊
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
卷 33, 期 7, 页码 3811-3816出版社
ELSEVIER
DOI: 10.1016/j.msec.2013.05.016
关键词
Reduced graphene oxide nanosheets; Graphene oxide; Sodium diphenylamine sulfonate; Chemical synthesis; Electrochemistry
资金
- National Natural Science Foundation of China [20671045, 20971060, 21101018]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Natural Science Foundation of State Key Laboratory of Coordination Chemistry
- International Science and Technology Cooperation Project of Changzhou City [CZ20110023]
We report a new method to convert graphene oxide (GO) to stable colloidal dispersion of reduced graphene oxide nanosheets (RGONS) using sodium diphenylamine sulfonate (SDAS) as a reductant, as well as itself and its redox product as the stabilizer. The as-prepared RGONS have been characterized by X-ray diffraction, Fourier transform infrared spectroscopy, UV-visible spectroscopy, thermo-gravimetric analysis, scanning and transmission electron microscopy, X-ray photoelectron spectroscopy, atomic force microscopy and Raman spectroscopy. The results indicate that the bulk of oxygen-containing functional groups from GO have been removed. Based on the cyclic voltammogram (CV) analyses, it is found that the RGONS-based material exhibits better electrochemical activity in sensing ascorbic acid than GO. The simple method provides a new efficient route for the synthesis of water-soluble RGONS on a large scale and novel composites. (C) 2013 Elsevier B.V. All rights reserved.
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