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Electron diffraction on graphite nanocrystals in the walls of carbon nanotubes |
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| Authors: | M. Kadle?í ková ,Z. Kri?anová ,K. Jesená k,M. Kolma?ka |
| Affiliation: | a Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkovi?ova 3, 812 19 Bratislava, Slovakia b Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia c Faculty of Natural Sciences, Comenius University, Mlynská dolina, 842 15 Bratislava, Slovakia d Faculty of Education, University of Trnava, Priemyselná 4, 917 01 Trnava, Slovakia |
| Abstract: | The structure and defects in the walls and cavities of carbon nanotubes were examined by electron diffraction, transmission electron microscopy, energy dispersive X-ray analysis and Raman spectroscopy. The predominating defects in the walls of the nanotubes are graphite nanocrystals having a preferential orientation in the direction of the nanotube axis, and another significant type of defects are particles of the catalyst in the nanotube cavities. In the cavities, also the presence of molybdenum was proved having its origin in the catalyst. |
| Keywords: | Carbon nanotubes Chemical vapour deposition Electron diffraction |
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