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Information × Registration Number 0212U006412, 0109U000932 , R & D reports Title Theoretical researches of thermodynamics of capillary condensation and evaporation in the nanoporous structures popup.stage_title Head Kutarov V.V., Registration Date 28-03-2012 Organization Odesa I.I.Mechnikov national university.Pervomaisk institute. popup.description2 Within the framework of fenomenologe thermodynamics of the surface phenomena the theoretical model of processes of condensation and evaporation in the opened slotted porous is created. New equation for description of desorption branch of hysteresis loop which links the size of relative adsorbate pressure in a by volume phase with the determining parameters of the adsorption system is got. A theory of similarity of processes of condensation and evaporation in the model of the opened slotted porous is developed. It is got, strictly analytically, writtenin in a dimensionless kind, equation, which links the size of relative adsorbate pressure in a by volume phase on the desorption branch of hysteresis loop in the conditions of dynamic equilibrium with determining parameters - dimensionless width of bark, dimensionless thickness of proof film of runback and coefficient of pores connectedness. For the adsorption systems in which condensation and evaporation take place on a capillary mechanism, equation for determination of abscissa of the extreme left point of hysteresis loop is got. Strict description grounded in theory of irreversible thermodynamics processes of condensation and evaporation in supermicroporous is offered. The new original theoretical method of calculation of function of pores distributing on sizes for the model of the opened cylindrical porous is offered. The developed method, which basis of formalism of percolating theory, is more informing as compared to the known methods, for example, method of Uilera. Adsorption hysteresis with the loop of H1 and H3 type on IUPAC classification is considered. Description of adsorption branch of hysteresis loop is conducted within the framework of Frenkel-Khelsi-Khill equation. Equation of desorption branch of hysteresis loop is got on the basis of joint decision of loop equation for the change of Gibbs potential of taking into account the function of pores connectedness , and by Laplace equation, writtenin for the terms of infinitely prolate meniscus. The extended of Dubinin-Astakhov equation for description of adsorption hysteresis in area of small pressures is offered. Product Description popup.authors Іоргов Олександр Іванович Длубовський Руслан Михайлович Шевченко Валентина миколаївна popup.nrat_date 2020-04-02 Close