Possible Existence of a Higher Coverage Quasi-One-Dimensional Phase of Argon Adsorbed on Bundles of Single-Walled Carbon Nanotubes
Abstract:We present results of Ar adsorption isotherms at very low coverages in the first layer and, beyond monolayer completion, on bundles of close-ended single-walled carbon nanotubes. The low coverage results were used to determine the isosteric heat of adsorption and the binding energy of Ar in the groove sites in the first layer. The higher coverage results show evidence of the possible formation of a second-layer groove phase, beyond monolayer completion. Our results for higher coverages are compared with recent computer simulations for this system.
Document Type: Communications
Affiliations: Department of Physics, Southern Illinois University at Carbondale, Carbondale, Illinois, USA
Publication date: 2002-10-01
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