Journal
CARBON
Volume 47, Issue 14, Pages 3365-3368Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2009.07.045
Keywords
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Funding
- NSFC [20774047]
- MOST [2006CB932702]
- MOE [708020]
- China and NSF of Tianjin City [07JCYBJC03000, 08JCZDJC25300]
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The synthesis of graphene oxide (GO) sheets with controlled size on a large scale was developed using chemical exfoliation by simply controlling the oxidation and exfoliation procedure. The GO samples prepared under different conditions, which all have excellent water dispersion, are characterized by thermal gravimetric analysis, Ultraviolet-visible spectroscopy, X-ray diffraction and atomic force microscopy. it is found that as longer oxidation times and more oxidants are used, the mean size of the GO sheets, which has a Gaussian distribution, decreases from similar to 59,000 to similar to 550 nm(2). (C) 2009 Elsevier Ltd. All rights reserved.
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