In the temperature range of 2−75 K, the analysis and comparison were performed: (i) experimental and theoretical heat capacity of 1D chains of xenon atoms adsorbed in grooves on the outer surface of bundles of single-walled carbon nanotubes with closed ends (c-SWCNTs); (ii) the experimental heat capacity and the experimental contribution to the radial thermal expansion of the c-SWNTs-Xe sample of Xe that adsorbed the grooves of c-SWCNTs [ ]. There is an anomaly near 60 K on the and curves due to the contribution of the spatial redistribution of Xe atoms between the chains and the outer surface of c-SWNTs. It was found that the dependencies of and are qualitatively similar below 60 K. The anomaly near 60 K in the curve indicates the complete of fragmentation of 1D Xe atomic chains. The obtained result is important for understanding the kinetics of gas impurity sorption/desorption processes in c-SWNTs.
Experimental heat capacity of 1D chains of Xe atoms adsorbed in the grooves of c-SWCNTs bundles: Contributions of vibrations and spatial redistribution of atoms
Fiz. Nizk. Temp. 49, 1074–1079 (August 2023)
M. S. Barabashko, M. I. Bagatskii, A. V. Dolbin, V. V. Sumarokov; Experimental heat capacity of 1D chains of Xe atoms adsorbed in the grooves of c-SWCNTs bundles: Contributions of vibrations and spatial redistribution of atoms. Low Temp. Phys. 1 August 2023; 49 (8): 979–983. https://doi.org/10.1063/10.0020166
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