Possible Existence of a Higher Coverage Quasi-One-Dimensional Phase of Argon Adsorbed on Bundles of Single-Walled Carbon Nanotubes

Authors: Talapatra, S.; Rawat, D.S.; Migone, A.D.

Source: Journal of Nanoscience and Nanotechnology, Volume 2, Number 5, October 2002 , pp. 467-470(4)

Publisher: American Scientific Publishers

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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.

Keywords: Adsorption; Carbon Nanotubes; Quasi-One-Dimensional Phase; Isosteric Heat.

Document Type: Communications

DOI: http://dx.doi.org/10.1166/jnn.2002.134

Affiliations: 1: Department of Physics, Southern Illinois University at Carbondale, Carbondale, Illinois, USA

Publication date: 2002-10-01

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