Abstract
Abstract The cluster formation of Xe molecules in a slit-shaped graphitic micropore was studied by Grand Canonical Monte Carlo(GCMC) simulation and adsorption measurement at 300K above the critical temperature of Xe using activated carbon fibers which have considerably uniform micropores of slit-shape. The GCMC simulated and experimental adsorption isotherms indicated the presence of a strong Xe-Xe interaction inducing the cluster formation. We applied the cluster analysis to the simulated adsorption isotherm for the pore width w = 0.9nm. Just after the steep rising at 75.5kPa, a wide distribution of the cluster size was observed. It was shown that the growth of small Xe clusters provides the steep rising of the Xe adsorption isotherm. The geometrical structure of Xe clusters was estimated from the simulated radial distribution function.
Published Version
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