Studies towards synthesis, evolution and alignment characteristics of dense, millimeter long multiwalled carbon nanotube arrays

Mahanandia, Pitamber and Schneider, Joerg J and Engel, Martin and Stuehn, Bernd and Subramanyam, Somanahalli V and Nanda, Karuna Kar (2011) Studies towards synthesis, evolution and alignment characteristics of dense, millimeter long multiwalled carbon nanotube arrays. In: Beilstein Journal of Nanotechnology, 2 . pp. 293-301.

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Abstract

We report the synthesis of aligned arrays of millimeter long carbon nanotubes (CNTs), from benzene and ferrocene as the molecular precursor and catalyst respectively, by a one-step chemical vapor deposition technique. The length of the grown CNTs depends on the reaction temperature and increases from similar to 85 mu m to similar to 1.4 mm when the synthesis temperature is raised from 650 to 1100 degrees C, while the tube diameter is almost independent of the preparation temperature and is similar to 80 nm. The parallel arrangement of the CNTs, as well as their tube diameter can be verified spectroscopically by small angle X-ray scattering (SAXS) studies. Based on electron diffraction scattering (EDS) studies of the top and the base of the CNT films, a root growth process can be deduced.

Item Type:	Journal Article
Publication:	Beilstein Journal of Nanotechnology
Publisher:	Beilstein-Intitute
Additional Information:	Copyright of this article belongs to Beilstein-Intitute.
Keywords:	carbon nanotubes;characterization;synthesis
Department/Centre:	Division of Chemical Sciences > Materials Research Centre Division of Physical & Mathematical Sciences > Physics
Date Deposited:	09 Mar 2012 11:03
Last Modified:	09 Mar 2012 11:03
URI:	http://eprints.iisc.ac.in/id/eprint/43877

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