Graphite structural transformations during intercalation by HNO 3 and exfoliation

Expandable graphite of two types was synthesized by (1) hydrolysis of graphite nitrate of II stage and (2) anodic polarization of graphite in 60% HNO 3. Exfoliated graphite samples were produced by thermal shock of expandable graphite samples in air at 900 °C. A comparative study of microstructural...

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Published inCarbon (New York) Vol. 48; no. 6; pp. 1862 - 1865
Main Authors Afanasov, I.M., Shornikova, O.N., Kirilenko, D.А., Vlasov, I.I., Zhang, L., Verbeeck, J., Avdeev, V.V., Van Tendeloo, G.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2010
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Summary:Expandable graphite of two types was synthesized by (1) hydrolysis of graphite nitrate of II stage and (2) anodic polarization of graphite in 60% HNO 3. 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.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2010.01.055