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CHEMISTRY AND MATERIAL SCIENCE
Supercritical fluid synthesis and possible properties of “cubic graphite”
A. V. Pokropivnyab, A. N. Enyashinc, A. S. Smolyarda, V. A. Kutse, V. G. Gurine, S. A. Antipove, P. M. Silenkoa, Yu. M. Solonina a Frantsevich Institute for Problems of Materials Science NASU, Kyiv, Ukraine
b G. V. Kurdyumov Institute for Metal Physics, NASU, Kyiv, Ukraine
c Institute of Solid State Chemistry UB RAS, Ekaterinburg, Russia
d M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation NASU, Kyiv, Ukraine
e Institute of Magnetism NASU, Kyiv, Ukraine
Аннотация:
We report on supercritical fluid synthesis of an intermediate carbon phase–austite–at a pressure of 180 MPa and temperatures 500-700$^\circ$C from soot as a precursor and supercritical carbon dioxide as a solvent. According to the results of electron and X-ray diffractions, spectral measurements and density-functional theory calculations, the observed carbon phase is proved to be cubic with a lattice parameter value of 8.96 $\pm$ 0.05 Å and a possible structural type as for KFI zeolite.
Ключевые слова:
crystal growth, carbon allotropes, electron microscopy, X-ray diffraction, DFT calculations.
Поступила в редакцию: 15.06.2020 Исправленный вариант: 10.07.2020
Образец цитирования:
A. V. Pokropivny, A. N. Enyashin, A. S. Smolyar, V. A. Kuts, V. G. Gurin, S. A. Antipov, P. M. Silenko, Yu. M. Solonin, “Supercritical fluid synthesis and possible properties of “cubic graphite””, Наносистемы: физика, химия, математика, 11:4 (2020), 408–416
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/nano540 https://www.mathnet.ru/rus/nano/v11/i4/p408
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