Structure and heat capacity of Ne and Xe adsorbed on a bundle of carbon nanotubes

TL;DR

This study uses computer simulations to analyze the structural and heat capacity properties of neon and xenon gases adsorbed on carbon nanotube bundles, revealing phase transition-related peaks.

Contribution

It extends previous work on argon to neon and xenon, providing new insights into their thermal behavior on nanotube surfaces.

Findings

Heat capacity peaks indicate reordering transitions.

Identification of stripe melting transitions.

Comparison with previous argon studies.

Abstract

The structural and thermal properties of Ne and Xe gases adsorbed on the outer surface of a large nanotube bundle have been evaluated with computer simulation. The potential energy model and numerical techniques were used previously to study Ar [N. M. Urban, S. M. Gatica, M. W. Cole, and J. L. Riccardo, ``Correlation functions and thermal properties of Ar adsorbed on the external surface of a bundle of carbon nanotubes'', Phys. Rev. B 71, 245410 (2005)]. Heat capacity results for Ne and Xe exhibit peaks associated with reordering and ``stripe'' melting transitions for these gases.