Phase diagrams of adsorption systems and calibration functions in the lattice-gas model
Using the calibration function is suggested to increase the accuracy of approximate equations in the lattice-gas model at calculating various concentration dependences of equilibrium characteristics for nonideal adsorption systems in the vicinity of the critical point. This function should provide a shift of the approximate result to the exact one, when the lattice-gas model equations are used in the quality of the interpolation tool between the exact solutions. A comparison of approximate equations with Onsager's exact solution preferrably allows a use of the quasi-chemical approximation as the interpolation procedure and the exact information on the critical point. The modified lattice-gas model takes into account next the molecular properties of the Lennard-Jones fluid: the long-range potential of adsorbate-adsorbate, an excluded volume of the adsorption site, and a contribution of the triple interactions, as well as a softness of the lattice structure. The modified lattice-gas model with the calibration function is used for the phase diagram descriptions for argon adsorption on the homogeneous (111) CdCl2 face (two-dimensional systems) and for methane adsorption in carbon slitlike pores (three-dimensional system) as well as the other equilibrium characteristics of mentioned systems.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2004 |
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| Erschienen: |
2004 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:20 |
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| Enthalten in: |
Langmuir : the ACS journal of surfaces and colloids - 20(2004), 14 vom: 06. Juli, Seite 6041-51 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tovbin, Yuriy K [VerfasserIn] |
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| Themen: |
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| Anmerkungen: |
Date Completed 20.03.2007 Date Revised 26.10.2019 published: Print Citation Status PubMed-not-MEDLINE |
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| Förderinstitution / Projekttitel: |
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NLM16054226X |
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| 100 | 1 | |a Tovbin, Yuriy K |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Phase diagrams of adsorption systems and calibration functions in the lattice-gas model |
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| 500 | |a Date Completed 20.03.2007 | ||
| 500 | |a Date Revised 26.10.2019 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Using the calibration function is suggested to increase the accuracy of approximate equations in the lattice-gas model at calculating various concentration dependences of equilibrium characteristics for nonideal adsorption systems in the vicinity of the critical point. This function should provide a shift of the approximate result to the exact one, when the lattice-gas model equations are used in the quality of the interpolation tool between the exact solutions. A comparison of approximate equations with Onsager's exact solution preferrably allows a use of the quasi-chemical approximation as the interpolation procedure and the exact information on the critical point. The modified lattice-gas model takes into account next the molecular properties of the Lennard-Jones fluid: the long-range potential of adsorbate-adsorbate, an excluded volume of the adsorption site, and a contribution of the triple interactions, as well as a softness of the lattice structure. The modified lattice-gas model with the calibration function is used for the phase diagram descriptions for argon adsorption on the homogeneous (111) CdCl2 face (two-dimensional systems) and for methane adsorption in carbon slitlike pores (three-dimensional system) as well as the other equilibrium characteristics of mentioned systems | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Rabinovich, Alexander B |e verfasserin |4 aut | |
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