Synthesis and characterization of silica membranes exhibiting an ordered mesoporosity. Control of the porous texture and effect on the membrane permeability

Temperature dependent transition point of purity versus flux for gas separation in Fe/Co-silica membranes

“…The performance of silica derived membranes in terms of permselectivities and permeances is well documented in the literature based on single gas permeation experiments [18][19][20][21][22][23]. Single gas permeation measurements are generally favoured by researchers as they require less equipment and are much easier to perform than gas mixture separation, but still deliver fundamental information about gas transport phenomena properties of the membranes under study.…”

A simple FTIR technique for estimating the surface area of silica powders and films

“…More recently, mesoporous silicas have been synthesized as supported and free standing films [10][11][12]. The synthesis of continuous mesoporous silica films has opened new areas of investigation, including applications in sensing devices and in membrane synthesis [13][14][15][16].…”

Estimation of pore size distribution in MCM-41-type silica using a simple desorption technique

“…The procedure for the preparation of the samples (denoted as Cn) has been described in detail in Klotz et al (2000Klotz et al ( , 2001. Prior to measurements, all samples were carefully dried at 250°C for 2 h in air at atmospheric pressure.…”