Journal
CARBON
Volume 49, Issue 5, Pages 1653-1662Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2010.12.049
Keywords
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Funding
- Spanish MICINN [MAT2008-05700]
- PCTI del Principado de Asturias [IB09-151]
- MICINN
- CSIC
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The preparation of aqueous graphene dispersions by exfoliation of pristine graphite in the presence of a wide range of surfactants is reported. High graphene concentrations, up to about 1 mg mL(-1), were obtained with the use of some non-ionic surfactants. The dispersions consisted of single- and few-layer graphene platelets with their basal planes virtually free of even atomic-sized (point) defects. The potential utility of such highly concentrated dispersions toward the low-cost, large-scale manipulation and processing of graphene was demonstrated by processing them into electrically conductive, freestanding paper-like films. (C) 2010 Elsevier Ltd. All rights reserved.
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