Highly dispersible disk-like graphene nanoflakes
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Synthesis of Graphene Nanofluids with Controllable Flake Size Distributions
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Vasilios Georgakilas1, Katerina Vrettos, Katerina Katomeri
1Department of Materials Science, University of Patras, 26504 Rio, Greece. viegeorgaki@upatras.gr.
Nanoscale
|September 2, 2015
Abstract:
We present the preparation of disk-like graphene nanoflakes, highly dispersible in dimethylformamide (DMF), with uniform size and thickness. The preparation procedure includes an overnight mild sonication of natural graphite in DMF, followed by a purification step using ultra-centrifugation. The mean diameter of the as produced well defined round shaped graphene nanoflakes is about 100 nm and they consisted of less than twenty graphenic layers.
