Characterization of Controlled Pore Glasses: Molecular Simulations of Adsorption
Lev D. Gelb and K. E. Gubbins
Citation: Abstract: Using a recently developed molecular dynamics procedure, we have prepared a series of models of controlled pore glasses with a range of porosities and pore sizes. Nitrogen adsorption isotherms have been obtained in these models using a parallelized version of the Grand Canonical Monte Carlo simulation technique. These isotherms can be analyzed with standard methods to obtain pore size distributions and surface areas, which can be compared with exact results obtained from the model glasses' atomic structures. In this study, we also measure the partial structure factors for the gas adsorbed in the model glasses at different pressures, and discuss the relationships between features in these data and the pores' geometry. download a PDF copy of this paper here. (3.2 Mb) download a gzip'd postscript copy of this paper here. (5.2 Mb)
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Department of Chemistry and
Center for Materials Innovation Washington University in St. Louis |
Last modification:
Fri Aug 17 16:44:13 2007 gelb@wustl.edu |