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Fullerene-to-MWCNT Structural Evolution Synthesized by Arc Discharge Plasma

Center for Diploma Studies (CeDS), Universiti Tun Hussein Onn Malaysia (UTHM), Muar 84600, Malaysia
Laser Center, Ibnu Sina Institute of Scientific and Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
Author to whom correspondence should be addressed.
Received: 7 September 2018 / Revised: 11 October 2018 / Accepted: 16 October 2018 / Published: 25 October 2018
(This article belongs to the Special Issue Transmission Electron Microscopy and Carbon Materials)
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The growth of multi-walled carbon nanotubes (MWCNTs) has been extensively studied using electron microscopy. The ex situ structural behavior was examined to investigate the growth of the MWCNTs under different environments and pressures using electron microscopy. The arc discharge plasma technique was applied to synthesize the MWCNTs by evaporating carbon through the arc plasma between two cylindrical graphite rods, with a background pressure of 10−2 to 102 mbar, inside a vacuum chamber under different ambient environments. The results showed that long MWCNT structures were successfully grown. We suggest that the mechanism involves: (i) fullerene formation; (ii) the elongation of fullerenes; and (iii) the growth of MWCNTs. Agglomeration with other structures then forms MWCNT bundles. We note that the pressure and environment in the vacuum chamber can affect the structure of the MWCNTs. View Full-Text
Keywords: carbon nanotube; nanostructured; arc discharge; electron microscopy carbon nanotube; nanostructured; arc discharge; electron microscopy

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Roslan, M.S.; Abd Rahman, M.M.; Jofri, M.H.; Chaudary, K.T.; Mohamad, A.; Ali, J. Fullerene-to-MWCNT Structural Evolution Synthesized by Arc Discharge Plasma. C 2018, 4, 58.

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