Textural study of simulated dimorphic porous substrates

Adsorption—Desorption Processes on Mesoscopic Pores Connected to Microscopic Pores of Complex Geometry Using the Ising Model

“…The mechanisms leading to and having an impact on adsorption hysteresis are still not yet completely understood, which warrants the need for further studies. The following three models are generally used for the interpretation of hysteresis in mesoporous materials: independent pores (Sarkisov and Monson 2001), pore network (Gil-Cruz et al 2010) and disordered pores (Lowell et al 2004). The 'independent pores' model considers that the hysteresis cycle arises from the formation of the liquid-vapour interface, also called the meniscus formation, and through the condensation process a cylindrical interface is formed, whereas a spherical phase forms during the evaporation process (Monson 2009;Rasmussen et al 2010).…”

“…One of the models most frequently used is the density functional theory; a recent review on this has been published by Landers et al (2013). The development of models such as the dual site bond model (Mayagoitia et al 1985), which represents a complex porous solid material, has proved to be fruitful as well (Cordero et al 2005;Gil-Cruz et al 2010;Mayagoitia et al 1988;Rojas et al 2002). Another model that has shown to be successful for the study of the adsorption/desorption phenomenon is the well-known three-dimensional Ising model (Ising 1925).…”