Quasi-One Dimensional Fluids That Exhibit Higher Dimensional Behavior

Abstract

Fluids confined within narrow channels exhibit a variety of phases and phase transitions associated with their reduced dimensionality. In this review paper, we illustrate the crossover from quasi-one dimensional to higher effective dimensionality behavior of fluids adsorbed within different carbon nanotubes geometries. In the single nanotube geometry, no phase transitions can occur at finite temperature. Instead, we identify a crossover from a quasi-one dimensional to a two dimensional behavior of the adsorbate. In bundles of nanotubes, phase transitions at finite temperature arise from the transverse coupling of interactions between channels.

The heat capacity of nitrogen chain in grooves of single-walled carbon nanotube bundles

“…The physical adsorption of gases by c-SWNT bundles and the adsorbate dynamics have been the subject of numerous theoretical and experimental investigations. The adsorption of nitrogen by c-SWNT bundles was considered in [14,31,[40][41][42]. The low-temperature thermodynamics of helium adsorbed in the grooves of c-SWNT bundles was analyzed theoretically using the lattice gas model [27,43].…”