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The peculiarity of intercalation of carbon nanomaterials containing nanotubes
Author(s) -
O. A. Syvolozhskyi,
I. V. Ovsiienko,
L. Yu. Matzui,
T. A. Len
Publication year - 2018
Publication title -
vìsnik. serìâ fìziko-matematičnì nauki/vìsnik kiì̈vsʹkogo nacìonalʹnogo unìversitetu ìmenì tarasa ševčenka. serìâ fìziko-matematičnì nauki
Language(s) - English
Resource type - Journals
eISSN - 2218-2055
pISSN - 1812-5409
DOI - 10.17721/1812-5409.2018/3.17
Subject(s) - carbon nanotube , intercalation (chemistry) , materials science , nanomaterials , graphite , selective chemistry of single walled nanotubes , mechanical properties of carbon nanotubes , carbon fibers , optical properties of carbon nanotubes , nanotechnology , chemical engineering , composite material , inorganic chemistry , nanotube , chemistry , composite number , engineering
The possibility of intercalation of carbon nanomaterials containing carbon nanotubes is considered. Carbon nanomaterials containing multiwall carbon nanotubes of different structure and size were intercalated by iodine chloride with use standard one-temperature method. As it is shown by electron microscopic studies, after intercalation the size and morphology of carbon nanotubes are essentially changed. The diameter of carbon nanotubes increases two times more. This increase in diameter is due to the penetration of iodine chloride molecules between layers of a multiwall carbon nanotubes or into the inner cavity of nanotubes. According to X-ray diffraction, the position of the most intense band in the 00ldiffractogram of carbon nanomaterial moves to the region of smaller angles after intercalation. The exact angular position of the 00l-band corresponds to reflection from the intercalate layers for the third stage compound. The hysteresis in the temperature dependence of resistivity for compacted intercalated carbon nanomaterial is observed. This hysteresis is explained by the change of the charge carriers effective relaxation time at the scattering on the phonons of the graphite layer and the intercalate layer. Such change occurs at the phase transitions in the intercalate layers from an ordered "quasicrystalline state" to an unordered "quasiliquid" state.

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