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Li M, Lu Y, An L. Ion Polarizabilities in Binary Liquid Mixtures of Water/Organic Solvents. J Phys Chem B 2018; 122:10023-10030. [DOI: 10.1021/acs.jpcb.8b07327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Minglun Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Yuyuan Lu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Lijia An
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
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Perez Sirkin YA, Factorovich MH, Molinero V, Scherlis DA. Stability and Vapor Pressure of Aqueous Aggregates and Aerosols Containing a Monovalent Ion. J Phys Chem A 2017; 121:2597-2602. [PMID: 28282149 DOI: 10.1021/acs.jpca.7b00642] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The incidence of charged particles on the nucleation and the stability of aqueous aggregates and aerosols was reported more than a century ago. Many studies have been conducted ever since to characterize the stability, structure, and nucleation barrier of ion-water droplets. Most of these studies have focused on the free-energy surface as a function of cluster size, with an emphasis on the role of ionic charge and radius. This knowledge is fundamental to go beyond the rudimentary ion-induced classical nucleation theory. In the present article, we address this problem from a different perspective, by computing the vapor pressures of (H2O)nLi+ and (H2O)nCl- aggregates using molecular simulations. Our calculations shed light on the structure, the critical size, the range of stability, and the role of ion-water interactions in aqueous clusters. Moreover, they allow one to assess the accuracy of the classical thermodynamic model, highlighting its strengths and weaknesses.
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Affiliation(s)
- Yamila A Perez Sirkin
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
| | - Matías H Factorovich
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
| | - Valeria Molinero
- Department of Chemistry, The University of Utah , 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - Damián A Scherlis
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
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Loeffler TD, Sepehri A, Chen B. Improved Monte Carlo Scheme for Efficient Particle Transfer in Heterogeneous Systems in the Grand Canonical Ensemble: Application to Vapor–Liquid Nucleation. J Chem Theory Comput 2015; 11:4023-32. [DOI: 10.1021/acs.jctc.5b00466] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Troy D. Loeffler
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Aliasghar Sepehri
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Bin Chen
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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Kumar R, Knight C, Wick CD, Chen B. Bringing Reactivity to the Aggregation-Volume-Bias Monte Carlo Based Simulation Framework: Water Nucleation Induced by a Reactive Proton. J Phys Chem B 2014; 119:9068-75. [DOI: 10.1021/jp508749x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Revati Kumar
- Department
of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
- Center for Computation and Technology, Louisiana State University, Baton
Rouge, Louisiana 70803, United States
| | - Chris Knight
- Leadership Computing Facility, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Collin D. Wick
- College
of Engineering and Science, Louisiana Tech University, Ruston, Louisiana 71272, United States
| | - Bin Chen
- Department
of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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5
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Homogeneous and heterogeneous nucleation of water vapor: A comparison using molecular dynamics simulation. Chem Phys 2013. [DOI: 10.1016/j.chemphys.2013.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Warshavsky VB, Podguzova TS, Tatyanenko DV, Shchekin AK. Vapor nucleation on a wettable nanoparticle carrying a non-central discrete electric charge. J Chem Phys 2013; 138:194708. [PMID: 23697431 DOI: 10.1063/1.4804655] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
We have studied thermodynamics of vapor nucleation on a spherical wettable dielectric nanoparticle carrying a discrete electric charge located at a certain distance from the particle center. New general equations for the chemical potential of a condensate molecule in the droplet around the particle, the work of the droplet formation and the droplet shape as functions of the effective radius of condensate film, and the value of an electric charge and its location with respect to the particle center have been derived analytically. These equations take into account both the effects of the non-central electric field and the disjoining pressure in the thin liquid film forming the droplet. Under the assumption of small distortion of the droplet shape in the axisymmetric electric field of non-central discrete charge from the spherical one, these equations have been simultaneously solved analytically. The obtained explicit formulas for the condensate chemical potential, the work of droplet formation, and the droplet shape have been numerically investigated for the case of the charge adsorbed below and above the surface of the particle. It has been shown that the effect of the electric field of non-central charge reveals itself in decreasing the maximum value of the condensate chemical potential in the droplet and shifting it away from the particle surface. As a result, the threshold value of the vapor supersaturation for barrierless nucleation and the activation barrier for barrier nucleation on the charged nanosized nuclei diminish in comparison with nucleation on nuclei with central charge. The effect is larger for smaller nuclei. It decreases with increase in the dielectric constant of the nuclei in the case of charge location below the particle surface.
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Affiliation(s)
- V B Warshavsky
- Department of Statistical Physics, Faculty of Physics, St. Petersburg State University, Ulyanovskaya 1, Petrodvoretz, St. Petersburg 198504, Russian Federation
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Scheifele B, Saika-Voivod I, Bowles RK, Poole PH. Heterogeneous nucleation in the low-barrier regime. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2013; 87:042407. [PMID: 23679429 DOI: 10.1103/physreve.87.042407] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Revised: 02/27/2013] [Indexed: 06/02/2023]
Abstract
In simulations of the two-dimensional Ising model, we examine heterogeneous nucleation induced by a small impurity consisting of a line of l fixed spins. As l increases, we identify a limit of stability beyond which the metastable phase is not defined. We evaluate the free energy barrier for nucleation of the stable phase and show that, contrary to expectation, the barrier does not vanish on approach to the limit of stability. We also demonstrate that our values for the height of the barrier yield predictions for the nucleation time (from transition state theory) and the size of the critical cluster (from the nucleation theorem) that are in excellent agreement with direct measurements, even near the limit of stability.
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Affiliation(s)
- Benjamin Scheifele
- Department of Physics, St. Francis Xavier University, Antigonish, Nova Scotia, Canada B2G 2W5
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Keasler SJ, Kim H, Chen B. Sign preference in ion-induced nucleation: Contributions to the free energy barrier. J Chem Phys 2012; 137:174308. [DOI: 10.1063/1.4759153] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Pérez A, Rubio A. A molecular dynamics study of water nucleation using the TIP4P/2005 model. J Chem Phys 2012; 135:244505. [PMID: 22225167 DOI: 10.1063/1.3672063] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Extensive molecular dynamics simulations were conducted using the TIP4P/2005 water model of Abascal and Vega [J. Chem. Phys. 123, 234505 (2005)] to investigate its condensation from supersaturated vapor to liquid at 330 K. The mean first passage time method [J. Wedekind, R. Strey, and D. Reguera, J. Chem. Phys. 126, 134103 (2007); L. S. Bartell and D. T. Wu, 125, 194503 (2006)] was used to analyze the influence of finite size effects, thermostats, and charged species on the nucleation dynamics. We find that the Nosé-Hoover thermostat and the one proposed by Bussi et al. [J. Chem. Phys. 126, 014101 (2007)] give essentially the same averages. We identify the maximum thermostat coupling time to guarantee proper thermostating for these simulations. The presence of charged species has a dramatic impact on the dynamics, inducing a marked change towards a pure growth regime, which highlights the importance of ions in the formation of liquid droplets in the atmosphere. It was found a small but noticeable sign preference at intermediate cluster sizes (between 5 and 30 water molecules) corresponding mostly to the formation of the second solvation shell around the ion. The TIP4P/2005 water model predicts that anions induce faster formation of water clusters than cations of the same magnitude of charge.
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Affiliation(s)
- Alejandro Pérez
- Nano-bio Spectroscopy Group and ETSF Scientific Development Center, Department of Materials Science, Faculty of Chemistry, University of the Basque Country (UPV/EHU), Donostia-San Sebastián, Spain.
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Butt HJ, Untch MB, Golriz A, Pihan SA, Berger R. Electric-field-induced condensation: an extension of the Kelvin equation. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2011; 83:061604. [PMID: 21797377 DOI: 10.1103/physreve.83.061604] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 05/10/2011] [Indexed: 05/31/2023]
Abstract
The Kelvin equation relates the vapor pressure of a volatile liquid to the curvature of the liquid surface. It describes phenomena such as capillary condensation, capillary adhesion, nucleation, and the adsorption of vapors into porous media. Here we propose an extension of the Kelvin equation, which takes into account changes of the vapor pressure due to electric fields. The presence of electric fields reduces the saturation vapor pressure and leads to field-induced condensation. Field-induced condensation can explain the presence of water bridges in scanning probe nanolithographic methods such as anodic oxidation.
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