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Synthesis of multiwall carbon nanotubes by chemical vapor deposition of ferrocene alone

Bhatia, Ravi and Prasad, V (2010) Synthesis of multiwall carbon nanotubes by chemical vapor deposition of ferrocene alone. In: Solid State Communications, 150 (7-8). pp. 311-315.

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Official URL: http://dx.doi.org/10.1016/j.ssc.2009.11.023

Abstract

Multiwall carbon nanotubes (MWNTs) filled with Fe nanoparticles (NPs) have been synthesized by thermal chemical vapor deposition of ferrocene alone as the precursor. The MWNTs were grown at different temperatures: 980 and 800 degrees C. Characterization of as-prepared MWNTs was done by scanning and transmission electron microscopy, and X-ray diffraction. The transmission electron microscopy study revealed that Fe NPs encapsulated in MWNTs grown at 980 and 800 degrees C are spherical and rod shaped, respectively. Room-temperature vibrating sample magnetometer studies were done on the two samples up to a field of 1T. The magnetization versus magnetic field loop reveals that the saturation magnetization for the two samples varies considerably, almost by a factor of 4.6. This indicates that Fe is present in different amounts in the MWNTs grown at the two different temperatures. (C) 2009 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Carbon nanotube;Chemical vapor deposition;Electron microscopy;Magnetic property
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 11 Jun 2010 08:12
Last Modified: 11 Jun 2010 08:12
URI: http://eprints.iisc.ernet.in/id/eprint/26631

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