Synthesis of vertically-aligned CNT arrays from diameter-controlled Fe3O4 nanoparticles

Title
Synthesis of vertically-aligned CNT arrays from diameter-controlled Fe3O4 nanoparticles
Author(s)
김석영조위공지앙홍[공지앙홍]김익진[김익진]Dong Nam SEO[Dong Nam SEO]
Keywords
WALLED CARBON NANOTUBES; CHEMICAL-VAPOR-DEPOSITION; GROWTH; PARTICLES; CATALYSTS; WATER
Issue Date
201403
Publisher
CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI
Citation
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, v.122, no.1423, pp.187 - 191
Abstract
Almost monodisperse Fe3O4 nanoparticles (NPs) with four distinct mean sizes prepared by thermal decomposition were self-assembled onto a silicon substrate in the form of multi-layers using a simple drop-drying method. These multilayered Fe3O4 NPs were used as the catalysts to grow vertically-aligned carbon nanotube arrays (VACNTAs) by chemical vapor deposition (CVD). The correlation between the CNT diameter and the NP size was determined. Catalysts with different sizes play a vital role in influencing the diameters and structures of CVD-grown CNTs. In addition, the size of the catalyst NPs is a critical factor for obtaining dense arrays of VACNTs. This method is a relatively simple and environmental friendly process compared to previous methods, and has the potential for the mass production of VACNTAs. (C)2014 The Ceramic Society of Japan. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/32977http://dx.doi.org/10.2109/jcersj2.122.187
ISSN
1882-0743
Appears in Collections:
공과대학 > 신소재공학부 > Articles
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