Coal-Tar Pitch Asphaltene Powders as a Precursor for the Production of Carbon Graphite Nanostructured Materials
S. A. SOZINOV, L. V. SOTNIKOVA, A. N. POPOVA, Z. R. ISMAGILOV
Federal Research Center of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, Russia
Keywords: асфальтены, каменноугольный пек, структура, пленки, coal-tar pitch, asphaltene, structure, films
Pages: 651-655
Abstract
Asphaltenes as self-organizing supramolecular structures are of great scientific and practical interest. An urgent problem is to reveal the regularities of the directed formation of planar associates of asphaltenes and condensed graphite-like structures. For the purpose of investigating the self-organization of the molecular aggregates of coal-tar pitch asphaltenes, the morphology and structure of the particles of asphaltene powder obtained from coal-tar pitch asphaltenes by method of selectively soluble groups was studied by complex of physicochemical methods. It was shown that the crystal structure of asphaltene powder particles is represented mainly by turbostratic carbon structures. According to XRD data, the coke residue after the thermolysis of asphaltenes is characterized by the presence of crystallites consisting of naphthenoaromatic layers.
DOI: 10.15372/CSD2019186
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