High-pressure behavior of Ni-filled and Fe-filled multiwalled carbon nanotubes

Poswal, HK and Karmakar, S and Tyagi, Pawan K and Misra, DS and Busetto, E and Sharma, Surinder M and Sood, AK (2007) High-pressure behavior of Ni-filled and Fe-filled multiwalled carbon nanotubes. In: Physica status solidi, 244 (10). 3612 -3619.

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Abstract

The high-pressure behavior of Ni-filled and Fe-filled multiwalled carbon nanotubes has been investigated up to 27 GPa and 19 GPa, respectively, with the help of synchrotron-based angle-dispersive X-ray diffraction. These nanotubes do not show any structural transformation up to the highest pressures studied. These results are similar to that of Co-filled nanotubes [1], but are in sharp contrast to the earlier results on Fefilled tubes [2], where the tubes were found to undergo a sudden collapse of intertube separation. Our present observations suggest that the occurrence of an isostructural phase transition in $Fe_3C$, observed in our earlier study, may be responsible for the structural transition in nanotubes in that case.

Item Type:	Journal Article
Publication:	Physica status solidi
Publisher:	John Wiley & Sons, Inc.
Additional Information:	Copyright of this article belongs to John Wiley & Sons, Inc.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	28 Jul 2008
Last Modified:	19 Sep 2010 04:48
URI:	http://eprints.iisc.ac.in/id/eprint/15272

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