NDLI: Diffusion and phase equilibria of binary fluids in mesopores

Content Provider	Springer Nature Link
Author	Zeigermann, Philipp Dvoyashkin, Muslim Valiullin, Rustem
Copyright Year	2010
Abstract	The formation of adsorption hysteresis in mesoporous material with random pore structure may be interrelated with different distributions of the fluid density attained along different paths of the system preparation. To access microscopic details of these distributions, in addition to the main sorptive liquid, distribution of which along the pore space of Vycor porous glass was of interest, a small amount of a probe liquid with a substantially lower vapor pressure has been added. Molecular diffusivities of both liquids then have been traced using pulsed field gradient NMR. Due to different vapor pressures, the two molecular species explore different spaces occupied by the capillary-condensed (accessible for both species) and gaseous (accessible only for the molecules of the main sorptive) phases. Comparative analysis of the diffusion properties obtained at different states along the adsorption isotherm revealed further insight into peculiarities of the fluid distribution and mass transfer of binary fluids in pores.
Starting Page	69
Ending Page	74
Page Count	6
File Format	PDF
ISSN	09295607
Journal	Adsorption
Volume Number	17
Issue Number	1
e-ISSN	15728757
Language	English
Publisher	Springer US
Publisher Date	2010-11-06
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Adsorption Diffusion Binary mixture Mesoporous materials Nuclear magnetic resonance Engineering Thermodynamics, Heat and Mass Transfer Surfaces and Interfaces, Thin Films Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Surfaces and Interfaces

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