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Wang Y, Allen O, Collins E, Ashbaugh HS. Methane at the gas/water interface: Molecular simulations of surface adsorption and second surface virial coefficients. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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2
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An Integrated Experimental and Computational Platform to Explore Gas Hydrate Promotion, Inhibition, Rheology, and Mechanical Properties at McGill University: A Review. ENERGIES 2022. [DOI: 10.3390/en15155532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
(1) Background: Gas hydrates are historically notable due to their prevalence and influence on operational difficulties in the oil and gas industry. Recently, new technologies involving the formation of gas hydrates to accomplish various applications have been proposed. This has created new motivation for the characterization of rheological and mechanical properties and the study of molecular phenomena in gas hydrates systems, particularly in the absence of oil and under pre-nucleation conditions. (2) Methodology: This work reviews advances in research on the promotion, inhibition, rheology, and mechanical properties of gas hydrates obtained through an integrated material synthesis-property characterization-multi-scale theoretical and computational platform at McGill University. (3) Discussion: This work highlights the findings from previous experimental work by our group and identifies some of their inherent physical limitations. The role of computational research methods in extending experimental results and observations in the context of mechanical properties of gas hydrates is presented. (4) Summary and Future perspective: Experimental limitations due to the length and time scales of physical phenomena associated with gas hydrates were identified, and future steps implementing the integrated experimental-computational platform to address the limitations presented here were outlined.
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3
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Mathews S, Daghash S, Rey A, Servio P. Recent Advances in Density Functional Theory and Molecular Dynamics Simulation of Mechanical, Interfacial, and Thermal Properties of Natural Gas Hydrates in Canada. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Samuel Mathews
- Department of Chemical Engineering McGill University Montréal Québec Canada
| | - Shaden Daghash
- Department of Chemical Engineering McGill University Montréal Québec Canada
| | - Alejandro Rey
- Department of Chemical Engineering McGill University Montréal Québec Canada
| | - Phillip Servio
- Department of Chemical Engineering McGill University Montréal Québec Canada
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Neupane P, Wilemski G. Molecular dynamics study of wetting of alkanes on water: from high temperature to the supercooled region and the influence of second inflection points of interfacial tensions. Phys Chem Chem Phys 2021; 23:14465-14476. [PMID: 34184020 DOI: 10.1039/d1cp01108a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To explore the wetting behavior of alkanes on bulk water interfaces, molecular dynamics (MD) simulations were carried out for united-atom PYS alkane models, and for SPC/E and TIP4P/2005 water models over a wide temperature range. The MD results at each temperature were used to find (1) the surface tension of the alkanes (octane, nonane) and water, and (2) the interfacial tensions of the alkane-water systems. These quantities were then used to calculate the spreading coefficient (S) and contact angle (θc) for each alkane on water. At higher temperatures, the contact angle of octane and nonane on water is found to behave in accord with conventional expectations, i.e., it decreases with increasing temperature for both water models as each system approaches the usual high-temperature transition to perfect wetting. At lower temperatures, we found an unusual temperature dependence of S and θc for each PYS alkane on SPC/E water. In contrast to conventional expectations, θc decreases with a decrease in the temperature. For octane-SPC/E water, this unusual behavior of θc occurs due to the presence of second inflection points (SIP) in the vapor-water and the octane-water interfacial tensions, whereas the SIP effect is much less important for the nonane-water system. The unusual temperature dependence of θc observed for nonane on SPC/E water is also found for nonane on TIP4P/2005 water. On the other hand, such unusual wetting behavior has not been observed in the PYS octane-TIP4P/2005 water system, except possibly for the two lowest temperatures studied.
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Affiliation(s)
- Pauf Neupane
- Department of Physics, Missouri University of Science and Technology, Rolla, MO 65409, USA.
| | - Gerald Wilemski
- Department of Physics, Missouri University of Science and Technology, Rolla, MO 65409, USA.
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Guo Q, Hu W, Zhang Y, Zhang K, Dong B, Qin Y, Li W. Molecular dynamics simulation of the interfacial properties of methane-water and methane-brine systems. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1929969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Qiuyi Guo
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian, People’s Republic of China
| | - Wenfeng Hu
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian, People’s Republic of China
| | - Yue Zhang
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian, People’s Republic of China
| | - Kun Zhang
- School of Ocean and Civil Engineering, Dalian Ocean University, Dalian, People’s Republic of China
| | - Bo Dong
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian, People’s Republic of China
- School of Energy and Power Engineering, Dalian University of Technology, Dalian, People’s Republic of China
| | - Yan Qin
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian, People’s Republic of China
- School of Energy and Power Engineering, Dalian University of Technology, Dalian, People’s Republic of China
| | - Weizhong Li
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian, People’s Republic of China
- School of Energy and Power Engineering, Dalian University of Technology, Dalian, People’s Republic of China
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Naeiji P, Woo TK, Alavi S, Ohmura R. Molecular dynamics simulations of interfacial properties of the CO 2-water and CO 2-CH 4-water systems. J Chem Phys 2020; 153:044701. [PMID: 32752701 DOI: 10.1063/5.0008114] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Molecular dynamics simulations were performed to study the interfacial behavior of the pure carbon dioxide-water system and a binary 40:60 mol. % gas mixture of (carbon dioxide + methane)-water at the temperatures of 275.15 K and 298.15 K and pressures near 4 MPa for CO2 and up to 10 MPa for methane. The simulations are used to study the dynamic equilibrium of the gases at the water-gas interface, to determine the z-density profiles for the gases and water, and calculate the interfacial tension γ under the different temperature/pressure conditions close to those of the formation of clathrate hydrates of these gases. At the same hydrostatic gas phase pressure, the CO2-water interface has a lower interfacial tension than the CH4-water interface. A greater number of CO2 molecules, as much as three times more than methane at the same pressure, were adsorbed at the interfacial layer, which reflects the stronger electrostatic quadrupolar and van der Waals interactions between CO2 and water molecules at the interface. The water surfaces are covered by less than a monolayer of gas even when the pressure of the system goes near the saturation pressure of CO2. The surface adsorbed molecules are in dynamic equilibrium with the bulk gas and with exchange between the gas and interface regions occurring repeatedly within the timescale of the simulations. The effects of the changes in the CO2-water interfacial tension with external temperature and pressure conditions on the formation of the clathrate hydrates and other CO2 capture and sequestration processes are discussed.
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Affiliation(s)
- Parisa Naeiji
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1A 0R6, Canada
| | - Tom K Woo
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1A 0R6, Canada
| | - Saman Alavi
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1A 0R6, Canada
| | - Ryo Ohmura
- Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-Ku, Yokohama 223-8522, Japan
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Naeiji P, Woo TK, Alavi S, Varaminian F, Ohmura R. Interfacial properties of hydrocarbon/water systems predicted by molecular dynamic simulations. J Chem Phys 2019; 150:114703. [DOI: 10.1063/1.5078739] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- Parisa Naeiji
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1A 0R6, Canada
- School of Chemical, Petroleum, and Gas Engineering, Semnan University, Semnan, Iran
| | - Tom K. Woo
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1A 0R6, Canada
| | - Saman Alavi
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1A 0R6, Canada
- Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-Ku, Yokohama 223-8522, Japan
| | - Farshad Varaminian
- School of Chemical, Petroleum, and Gas Engineering, Semnan University, Semnan, Iran
| | - Ryo Ohmura
- Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-Ku, Yokohama 223-8522, Japan
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Murina EL, Fernández-Prini R, Pastorino C. Molecular conformation of linear alkane molecules: From gas phase to bulk water through the interface. J Chem Phys 2017; 147:064907. [DOI: 10.1063/1.4997619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ezequiel L. Murina
- Departamento de Fisicoquímica de Fluidos, CAC-CNEA, Buenos Aires, Argentina and INQUIMAE, FCEN, UBA/CONICET, Buenos Aires, Argentina
| | - Roberto Fernández-Prini
- Departamento de Fisicoquímica de Fluidos, CAC-CNEA, Buenos Aires, Argentina and INQUIMAE, FCEN, UBA/CONICET, Buenos Aires, Argentina
| | - Claudio Pastorino
- Departamento de Física de la Materia Condensada, CAC-CNEA/CONICET, Buenos Aires, Argentina
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Nieto-Draghi C, Fayet G, Creton B, Rozanska X, Rotureau P, de Hemptinne JC, Ungerer P, Rousseau B, Adamo C. A General Guidebook for the Theoretical Prediction of Physicochemical Properties of Chemicals for Regulatory Purposes. Chem Rev 2015; 115:13093-164. [PMID: 26624238 DOI: 10.1021/acs.chemrev.5b00215] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Carlos Nieto-Draghi
- IFP Energies nouvelles , 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison, France
| | - Guillaume Fayet
- INERIS, Parc Technologique Alata, BP2 , 60550 Verneuil-en-Halatte, France
| | - Benoit Creton
- IFP Energies nouvelles , 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison, France
| | - Xavier Rozanska
- Materials Design S.A.R.L. , 18, rue de Saisset, 92120 Montrouge, France
| | - Patricia Rotureau
- INERIS, Parc Technologique Alata, BP2 , 60550 Verneuil-en-Halatte, France
| | | | - Philippe Ungerer
- Materials Design S.A.R.L. , 18, rue de Saisset, 92120 Montrouge, France
| | - Bernard Rousseau
- Laboratoire de Chimie-Physique, Université Paris Sud , UMR 8000 CNRS, Bât. 349, 91405 Orsay Cedex, France
| | - Carlo Adamo
- Institut de Recherche Chimie Paris, PSL Research University, CNRS, Chimie Paristech , 11 rue P. et M. Curie, F-75005 Paris, France.,Institut Universitaire de France , 103 Boulevard Saint Michel, F-75005 Paris, France
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Ou SC, Cui D, Patel S. Association of alkanes with the aqueous liquid-vapor interface: a reference system for interpreting hydrophobicity generally through interfacial fluctuations. Phys Chem Chem Phys 2014; 16:26779-85. [PMID: 25372502 DOI: 10.1039/c4cp03170a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report free energy calculations and fluctuation profiles of single alkanes (from methane to pentane) along the direction normal to the air-water interface. The induced fluctuations and the interfacial stabilities of alkanes are found to be correlated and similar to the results of inorganic monovalent ions (Ou et al., J. Phys. Chem. B, 2013, 117, 11732). This suggests that hydrophobic solvation of solutes and ions is important in determining the adsorption behavior.
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Affiliation(s)
- Shu-Ching Ou
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
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12
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Wick CD, Chang TM. Computational Observation of Pockets of Enhanced Water Concentration at the 1-Octanol/Water Interface. J Phys Chem B 2014; 118:7785-91. [DOI: 10.1021/jp411427a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Collin D. Wick
- Department
of Chemistry, Louisiana Tech University, P.O. Box 10348, Ruston, Louisiana 71270, United States
| | - Tsun-Mei Chang
- Department
of Chemistry, University of Wisconsin-Parkside, 900 Wood Road, Kenosha, Wisconsin 53141, United States
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Liyana-Arachchi TP, Zhang Z, Ehrenhauser FS, Avij P, Valsaraj KT, Hung FR. Bubble bursting as an aerosol generation mechanism during an oil spill in the deep-sea environment: molecular dynamics simulations of oil alkanes and dispersants in atmospheric air/salt water interfaces. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2014; 16:53-64. [PMID: 24296764 DOI: 10.1039/c3em00391d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Potential of mean force (PMF) calculations and molecular dynamics (MD) simulations were performed to investigate the properties of oil n-alkanes [i.e., n-pentadecane (C15), n-icosane (C20) and n-triacontane (C30)], as well as several surfactant species [i.e., the standard anionic surfactant sodium dodecyl sulfate (SDS), and three model dispersants similar to the Tween and Span species present in Corexit 9500A] at air/salt water interfaces. This study was motivated by the 2010 Deepwater Horizon (DWH) oil spill, and our simulation results show that, from the thermodynamic point of view, the n-alkanes and the model dispersants have a strong preference to remain at the air/salt water interface, as indicated by the presence of deep free energy minima at these interfaces. The free energy minimum of these n-alkanes becomes deeper as their chain length increases, and as the concentration of surfactant species at the interface increases. The n-alkanes tend to adopt a flat orientation and form aggregates at the bare air/salt water interface. When this interface is coated with surfactants, the n-alkanes tend to adopt more tilted orientations with respect to the vector normal to the interface. These simulation results are consistent with the experimental findings reported in the accompanying paper [Ehrenhauser et al., Environ. Sci.: Processes Impacts 2013, in press, (DOI: 10.1039/c3em00390f)]. The fact that these long-chain n-alkanes show a strong thermodynamic preference to remain at the air/salt water interfaces, especially if these interfaces are coated with surfactants, makes these species very likely to adsorb at the surface of bubbles or droplets and be ejected to the atmosphere by sea surface processes such as whitecaps (breaking waves) and bubble bursting. Finally, the experimental finding that more oil hydrocarbons are ejected when Corexit 9500A is present in the system is consistent with the deeper free energy minima observed for the n-alkanes at the air/salt water interface at increasing concentrations of surfactant species.
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Ghoufi A, Emile J, Malfreyt P. Recent advances in Many Body Dissipative Particles Dynamics simulations of liquid-vapor interfaces. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2013; 36:10. [PMID: 23361618 DOI: 10.1140/epje/i2013-13010-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 01/14/2013] [Indexed: 06/01/2023]
Abstract
Many Body Dissipative Particles Dynamics (MDPD) simulation is a novel promising mesoscopic method to model the liquid-vapor interfaces. Based upon works of Paganobarraga and Frenkel (J. Chem. Phys. 15, 5015 (2001)) and Trofimov (J. Chem. Phys. 117, 9383 (2002)) and of Warren (Phys. Rev. E 68, 066702 (2003)) this method has been critically reviewed during this last decade. We propose here to give an overview of the Many Body Dissipative Particles Dynamic simulation within the framework of the liquid-vapor interfaces. We recall the theoretical background of MDPD and we present some recent results of systems of interest such as water liquid-vapor interfaces and salt effect on water surface tension. Additionally we discuss the ability of MDPD to capture the mechanisms at the mesoscopic scale through the formation of micelles and the coalescence of a nanodroplet water on water surface.
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Affiliation(s)
- Aziz Ghoufi
- Institut de Physique de Rennes, Université Rennes 1, 263 avenue du Général Leclerc, 35042, Rennes, France.
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Neyt JC, Wender A, Lachet V, Malfreyt P. Prediction of the Temperature Dependence of the Surface Tension Of SO2, N2, O2, and Ar by Monte Carlo Molecular Simulations. J Phys Chem B 2011; 115:9421-30. [DOI: 10.1021/jp204056d] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jean-Claude Neyt
- Clermont Université, Université Blaise Pascal, Laboratoire de Thermodynamique et Interactions Moléculaires, BP 10448, F-63000 Clermont-Ferrand, France
- IFP Energies nouvelles, 1-4 avenue de Bois Préau, 92852 Rueil-Malmaison, France
| | - Aurélie Wender
- IFP Energies nouvelles, 1-4 avenue de Bois Préau, 92852 Rueil-Malmaison, France
| | - Véronique Lachet
- IFP Energies nouvelles, 1-4 avenue de Bois Préau, 92852 Rueil-Malmaison, France
| | - Patrice Malfreyt
- Clermont Université, Université Blaise Pascal, Laboratoire de Thermodynamique et Interactions Moléculaires, BP 10448, F-63000 Clermont-Ferrand, France
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