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Simple Universal Kelvin Equation Valid in the Critical Point Vicinity, External-Internal State Correction, and their Application to Nitrogen Capillary Condensation in Mesoporous Silica SBA-15

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Abstract:

A new simple universal form of the Kelvin equation, which can be used near the gas-liquid critical point and the correction of the pressure for vapor outside the porous medium are used for the N₂ meniscus effective curvature radius calculation at the phase equilibrium in mesoporous silica SBA-15, on the basis of the capillary condensation experimental data.

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Materials Engineering and Technologies for Production and Processing IV

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Periodical:

Solid State Phenomena (Volume 284)

Pages:

801-806

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.284.801

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Online since:

October 2018

Authors:

Anton A. Valeev*, Elena V. Morozova

Keywords:

Capillary Condensation, Critical Point, Kelvin Equation, Mesoporous Materials, Phase Transition

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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