Adsorption of fluids on solid surfaces: A route toward very dense layers |
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| Authors: | SA Sartarelli L Szybisz |
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| Institution: | 1. Instituto de Desarrollo Humano, Universidad Nacional de General Sarmiento, San Miguel, Argentina;2. Laboratorio TANDAR, Departamento de Física, Comisión Nacional de Energía Atómica, RA-1429 Buenos Aires, Argentina;3. Departamento de Fíica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina;4. Consejo Nacional de Investigaciones Científicas y Técnicas, RA-1033 Buenos Aires, Argentina |
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| Abstract: | Adsorption of Xe on single planar walls is investigated in the frame of a density functional theory. The strength of the adsorbate-substrate attraction is changed by considering surfaces of Cs, Na, Li, and Mg. The behavior is analyzed by varying the temperature T (between the triple point Tt and the critical Tc) and the coverage Γ?. The obtained adsorption isotherms exhibit a variety of wetting situations. Density profiles are reported. It is shown that for strongly attractive surfaces the adsorbed liquid becomes very dense reaching densities characteristic of solids. |
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| Keywords: | Wetting Structure of simple liquids Liquid&ndash vapor transitions |
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