A model description of molecular medium spectra during phase transitions in cylindrical nanopores is developed based on the thermodynamic concept of surface adsorption and capillary condensation. Good agreement of the calculated and experimental spectra measured during carbon dioxide adsorption and condensation in pores of nanoporous Vycor glass with a diameter of 2 nm is obtained. The constructed model connects the behavior of the medium spectra with the characteristics of the porous structure of a material and can be used for their determination based on spectroscopic data.
42.65.-k Nonlinear optics
International Laser Center and Faculty of Physics, Moscow State University, Moscow, 119991, Russia
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