The effect of sorbed hydrogen on low temperature radial thermal expansion of single walled carbon nanotube bundles

Autor:	Dolbin, A. V., Esel'son, V. B., Gavrilko, V. G., Manzhelii, V. G., Popov, S. N., Vinnikov, N. A., Sundqvist, B.
Rok vydání:	2009
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science
Zdroj:	Fizika Nizkikh Temperatur, 2009, v. 35, No. 12, p. 1209--1214
Druh dokumentu:	Working Paper
DOI:	10.1063/1.3274811
Popis:	The effect of a normal H2 impurity upon the radial thermal expansion (Ar) of SWNT bundles has been investigated in the interval T = 2.2-27 K using the dilatometric method. It is found that H2 saturation of SWNT bundles causes a shift of the temperature interval of the negative thermal expansion towards lower (as compared to pure CNTs) temperatures and a sharp increase in the magnitude of (Ar) in the whole range of temperatures investigated. The low temperature desorption of H2 from a powder consisting of bundles of SWNTs, open and closed at the ends, has been investigated. Comment: 10 pages, 2 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0907.2325 Zobrazit plný text záznamu View this record from Arxiv