Abstract:The effect of heat treatment and fluoridation of the surface on the adsorption of n‐butane on porous glass was studied. The BET surface area, pore‐size distribution, and porosity were obtained from N2 isotherms of samples successively heated at temperatures from 350° to 865°C. Deformation of the bulk structure began at 700°C. A cylindrical pore model inadequately correlated changes in specific surface, mean pore radius, and porosity. Surface heterogeneity was decreased to some extent by heat treatment at 865°C… Show more
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