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Graphite structural transformations during intercalation by HNO3 and exfoliation |
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| Authors: | I.M. Afanasov O.N. Shornikova I.I. Vlasov J. Verbeeck G. Van Tendeloo |
| Affiliation: | a Chemistry Department, Moscow State University, 119991 Moscow, Russia b EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium c A.M. Prokhorov General Physics Institute, 119991 Moscow, Russia |
| Abstract: | Expandable graphite of two types was synthesized by (1) hydrolysis of graphite nitrate of II stage and (2) anodic polarization of graphite in 60% HNO3. Exfoliated graphite samples were produced by thermal shock of expandable graphite samples in air at 900 °C. A comparative study of microstructural distinctions of both expandable and exfoliated graphite samples was carried out using X-ray diffraction, Raman spectroscopy, electron energy loss spectroscopy and high resolution transmission electron microscopy. |
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