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

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

Dolbin, A.V. ; Esel'son, V.B. ; Gavrilko, V.G. ; Manzhelii, V.G. ; Popov, S.N. ; Vinnikov, N.A. ; Sundqvist, B.

Тема: Наноструктуры при низких температурах

Інший ID: PACS: 74.70.Wz

URI: http://dspace.nbuv.gov.ua/handle/123456789/117830

Посилання: The effect of sorbed hydrogen on low temperature radial thermal expansion of single-walled carbon nanotube bundles / A.V. Dolbin, V.B. Esel'son, V.G. Gavrilko, V.G. Manzhelii, S.N. Popov, N.A. Vinnikov, B. Sundqvist // Физика низких температур. — 2009. — Т. 35, № 12. — С. 1209-1214. — Бібліогр.: 31 назв. — англ.

Підтримка: The authors are indebted to the Science and Technology Center of Ukraine (STCU) for the financial support of this study (project No 4359).

Дата: 2009

Завантажень: 453

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

Анотація:

The effect of a normal H₂ impurity upon the radial thermal expansion ar of single-walled carbon nanotube (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 carbon nanotubes) 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.

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