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Abstract:

The adsorption of Ar on planar structureless substrates of alkali metals, alkaline-earth metal Mg, CO2, and Au was analyzed by applying a density functional formalism which includes a recently proposed effective attractive pair potential conditioned to Ar. It is shown that this approach reproduces the experimental surface tension of the liquid-vapor interface over the entire bulk coexistence curve for temperatures T spanning from the triple point Tt up to the critical point Tc. The wetting properties were studied over the entire range temperatures Tt Tc. It was found that Ar wets all the investigated surfaces. The adsorption isotherms for alkali metals exhibit first-order phase transitions. Prewetting lines were resolved even for the less attractive surfaces. In the cases of Mg, CO2, and Au a continuous growth for T Tt was obtained. A comparison with experimental data and other microscopic calculations is reported. © 2009 The American Physical Society.

Registro:

Documento: Artículo
Título:Adsorption of Ar on planar surfaces studied with a density functional theory
Autor:Sartarelli, S.A.; Szybisz, L.
Filiación:Instituto de Desarrollo Humano, Universidad Nacional de General Sarmiento, Gutierrez 1150, RA-1663 San Miguel, Argentina
Laboratorio TANDAR, Departamento de Física, Comisión Nacional de Energía Atómica, Av. del Libertador 8250, RA-1429 Buenos Aires, Argentina
Departamento de Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, RA-1428 Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917, RA-1033 Buenos Aires, Argentina
Palabras clave:A-density; Attractive surfaces; Coexistence curve; Critical points; Experimental data; First-order phase transitions; Liquid-vapor interface; Pair potential; Planar surface; Pre-wetting; Triple points; Wetting property; Adsorption; Adsorption isotherms; Alkali metals; Argon; Atmospheric temperature; Equations of state; Phase interfaces; Phase transitions; Surface tension; Technetium; Density functional theory
Año:2009
Volumen:80
Número:5
DOI: http://dx.doi.org/10.1103/PhysRevE.80.052602
Título revista:Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Título revista abreviado:Phys. Rev. E Stat. Nonlinear Soft Matter Phys.
ISSN:15393755
CODEN:PLEEE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v80_n5_p_Sartarelli

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Citas:

---------- APA ----------
Sartarelli, S.A. & Szybisz, L. (2009) . Adsorption of Ar on planar surfaces studied with a density functional theory. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 80(5).
http://dx.doi.org/10.1103/PhysRevE.80.052602
---------- CHICAGO ----------
Sartarelli, S.A., Szybisz, L. "Adsorption of Ar on planar surfaces studied with a density functional theory" . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 80, no. 5 (2009).
http://dx.doi.org/10.1103/PhysRevE.80.052602
---------- MLA ----------
Sartarelli, S.A., Szybisz, L. "Adsorption of Ar on planar surfaces studied with a density functional theory" . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, vol. 80, no. 5, 2009.
http://dx.doi.org/10.1103/PhysRevE.80.052602
---------- VANCOUVER ----------
Sartarelli, S.A., Szybisz, L. Adsorption of Ar on planar surfaces studied with a density functional theory. Phys. Rev. E Stat. Nonlinear Soft Matter Phys. 2009;80(5).
http://dx.doi.org/10.1103/PhysRevE.80.052602