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O. I. Khovavko, A. A. Nebesnyi, D. S. Filonenko, M. Yu. Barabash, D. S. Leonov, and O. M. Svyatenko
Peculiarities of the Formation of Carbon Nanotubes from the Products of the Air Conversion of Methane by the Method of Chemical Deposition
0715–0724 (2022)

PACS numbers: 61.48. De, 68.37.Hk, 78.30.Na, 81.05.U-, 81.07.De, 81.15.Gh, 81.16.Hc

The goal of the work is to elucidate some regularities of carbon nanotube (CNT) formation from methane air-conversion products. Carbon nanomaterials of different morphology are synthesized by the method of chemical vapour deposition on metal catalysts of the iron group. Thermodynamic calculations and empirical studies allow choosing the optimal process temperature, at which the mould product contains almost no harmful impurities, namely, soot. The idea of sequential treatment of a metal catalyst in oxidizing and reducing atmospheres is practiced. Raman spectra show the defective nature of the obtained materials, i.e., CNT.

Key words: carbon nanotubes, optics spectroscopy, electron microscopy, chemical vapour deposition, catalyst.

https://doi.org/10.15407/nnn.20.03.715

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