Abstract:
Abstract We studied the entrance mechanism of methane molecules into bulk water by Molecular Dynamics simulation over a broad time window. We corroborated that the presence of absorbed methane, under the studied thermodynamic state (298 K and roughly 10 MPa), does not influence the molecular configuration of water interface. Some representative interfacial trajectories were analyzed in detail and we propose an entrance mechanism in which interfacial water is not actively involved in the dissolution process. Finally, we described the Helmholtz Free Energy profile through the interface and obtained the dissolution free energy of methane in water. © 2015 Elsevier B.V.
Registro:
Documento: |
Artículo
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Título: | Entrance dynamics of CH4 molecules through a methane-water interface |
Autor: | Murina, E.L.; Pastorino, C.; Fernández-Prini, R. |
Filiación: | Gerencia de Química, CAC-CNEA, Av. Gral. Paz 1499, Buenos Aires, Argentina Departamento de Física de la Materia Condensada, CAC-CNEA, CONICET, Buenos Aires, Argentina INQUIMAE, FCEN, UBA, Buenos Aires, Argentina
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Palabras clave: | Dissolution; Free energy; Methane; Molecular dynamics; Molecules; Dissolution process; Interfacial water; Methane molecules; Molecular configurations; Molecular dynamics simulations; Thermodynamic state; Time windows; Water interface; Interface states |
Año: | 2015
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Volumen: | 637
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Página de inicio: | 13
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Página de fin: | 17
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DOI: |
http://dx.doi.org/10.1016/j.cplett.2015.07.045 |
Título revista: | Chemical Physics Letters
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Título revista abreviado: | Chem. Phys. Lett.
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ISSN: | 00092614
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CODEN: | CHPLB
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00092614_v637_n_p13_Murina |
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Citas:
---------- APA ----------
Murina, E.L., Pastorino, C. & Fernández-Prini, R.
(2015)
. Entrance dynamics of CH4 molecules through a methane-water interface. Chemical Physics Letters, 637, 13-17.
http://dx.doi.org/10.1016/j.cplett.2015.07.045---------- CHICAGO ----------
Murina, E.L., Pastorino, C., Fernández-Prini, R.
"Entrance dynamics of CH4 molecules through a methane-water interface"
. Chemical Physics Letters 637
(2015) : 13-17.
http://dx.doi.org/10.1016/j.cplett.2015.07.045---------- MLA ----------
Murina, E.L., Pastorino, C., Fernández-Prini, R.
"Entrance dynamics of CH4 molecules through a methane-water interface"
. Chemical Physics Letters, vol. 637, 2015, pp. 13-17.
http://dx.doi.org/10.1016/j.cplett.2015.07.045---------- VANCOUVER ----------
Murina, E.L., Pastorino, C., Fernández-Prini, R. Entrance dynamics of CH4 molecules through a methane-water interface. Chem. Phys. Lett. 2015;637:13-17.
http://dx.doi.org/10.1016/j.cplett.2015.07.045