The effect of O2 impurities on the low temperature radial thermal expansion of bundles of closed single-walled carbon nanotubes

Details The effect of O2 impurities on the low temperature radial thermal expansion of bundles of closed single-walled carbon nanotubes The effect of O2 impurities on the low temperature radial thermal expansion of bundles of closed single-walled carbon nanotubes

2011-07-19

arxiv.org/abs/1107.3644v1

Low Temp. Phys. 37, 343 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 3 figures

Scientific paper

The effect of oxygen impurities upon the radial thermal expansion (ar) of bundles of closed single-walled carbon nanotubes has been investigated in the temperature interval 2.2-48 K by the dilatometric method. Saturation of bundles of nanotubes with oxygen caused an increase in the positive ar-values in the whole interval of temperatures used. Also, several peaks appeared in the temperature dependence ar(T) above 20 K. The low temperature desorption of oxygen from powders consisting of bundles of single-walled nanotubes with open and closed ends has been investigated

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