Abstract
We report a Grand Canonical Monte Carlo study of the temperature dependence of adsorption/desorption hysteresis for porous matrices having different morphologies and topologies. We aim at gaining some insights on the concept of critical hysteresis temperature, T cc , defined as the temperature at which the hysteresis loop disappears. Simulated T cc for cylindrical, ellipsoidal, and constricted pores follow the experimental scaling law established for MCM-41 silica materials. In contrast, T cc for Vycor samples with a largest pore size ~2.5 nm and 5.0 nm obey a different relationship, in qualitative agreement with experiments.
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Coasne, B., Gubbins, K.E. & Pellenq, R.JM. Temperature Effect on Adsorption/Desorption Isotherms for a Simple Fluid Confined within Various Nanopores. Adsorption 11 (Suppl 1), 289–294 (2005). https://doi.org/10.1007/s10450-005-5939-y
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DOI: https://doi.org/10.1007/s10450-005-5939-y