Journal
CARBON
Volume 68, Issue -, Pages 80-86Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2013.10.038
Keywords
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Funding
- MEXT of Japan [19084008, 22225001]
- Grants-in-Aid for Scientific Research [25107002, 22225001] Funding Source: KAKEN
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Metal catalyst-free mist flow chemical vapor deposition (CVD) growth of single-walled carbon nanotubes (SWCNTs) with C-60 fullerenes has been investigated by using an aqueous colloidal C-60 solution. Under the optimum reaction condition, relatively uniform SWCNTs with a mean diameter of 1.28 nm can be synthesized without any treatments of C-60 prior to CVD. Cap opening, nucleation and the growth of SWCNTs have been occurring almost simultaneously during the present CVD. C-60 can be used as the seeds (i.e., end-caps) of SWCNTs, in which oxygen atoms from water molecules provide etching of C-60 into caps. Furthermore, the coalescence of C-60 caps into a larger one leads to the growth of SWCNTs with larger diameters. (C) 2013 Elsevier Ltd. All rights reserved.
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