Thermodynamics of Fluids in Mesoporous Media

The pore size range of the mesoporous media is typically 2–50 nm. These sizes are found in inorganic xerogels, e.g alumina and silica powders, porous glasses and pillared or non-pillared clays. They are also found in meso-structurated materials of the M41S-type that have an ordered pore system, see Beck et al. [2]. A great variety of pore structures can be found in mesoporous materials: crystalline (mainly hexagonal), polyhedral, lamellar, pillared, nanotubes (carbons), ‘hairy tubes’, etc., see Bejan et al. [3].