Hydrogen sorption by the bundles of single-wall carbon nanotubes, irradiated in various gas media

作者：Dolbin A V^*; Esel'son V B; Gavrilko V G; Manzhelii V G; Vinnikov N A; Yaskovets I I; Uvarova I Yu; Tripachko N A; Danilchenko B A

来源：Low Temperature Physics, 2013, 39(7): 610-617.

DOI：10.1063/1.4816119

The effect of radioactive irradiation on H-2 sorption by bundles of single-wall carbon nanotubes (SWNTs) has been investigated in various gas media. The samples were irradiated with gamma-quanta (1.2 MeV) of Co-60 ((1.5-1.7) x 10(7) rad) radiation at room temperature in deuterium, nitrogen, and oxygen atmosphere (P = 1 atm), and in a vacuum. The processes of H-2 sorption and desorption in the SWNT bundles were investigated before and after irradiation in the temperature interval 12-1270 K. It is found that irradiation in a gas environment has a significant effect both on the low-temperature H-2 sorption induced by the weak physical interaction, and the chemical H-2 sorption by the SWNT bundles. A phenomenological model has been proposed to explain the defect generation in carbon nanotubes irradiated in gas media.

• 出版日期2013-7