| Institution: | 1.Federal Research Center for Coal and Coal Chemistry,Siberian Branch of the Russian Academy of Sciences,Kemerovo,Russian Federation;2.Kemerovo State University,Kemerovo,Russian Federation;3.Department of Chemistry,M. V. Lomonosov Moscow State University,Moscow,Russian Federation |
| Abstract: | Graphene oxide was obtained from expanded graphite according to the modified Hummers method. The reaction time was significantly reduced (from 24 to 8 h) by applying the expanded graphite in the oxidation process. The interlayer distance in obtained samples was equal to 0.70–0.74 nm. Structural features of the material were studied by the powder X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, transmission electron microscopy, XPS spectroscopy, and NMR spectroscopy. |
