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Abbaspour M, Akbarzadeh H, Zaeifi S. Thermodynamics, Structure, and Dynamic Properties of Nanostructured Water Confined into B-, N-, and Si-Doped Graphene Surfaces and Carbon Nanotubes. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00119] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohsen Abbaspour
- Department of Chemistry, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran
| | - Hamed Akbarzadeh
- Department of Chemistry, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran
| | - Shadi Zaeifi
- Department of Chemistry, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran
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2
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Cai X, Xie WJ, Yang Y, Long Z, Zhang J, Qiao Z, Yang L, Gao YQ. Structure of water confined between two parallel graphene plates. J Chem Phys 2019; 150:124703. [DOI: 10.1063/1.5080788] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Xiaoxia Cai
- Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Wen Jun Xie
- Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Ying Yang
- Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Zhuoran Long
- Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Jun Zhang
- Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Zhuoran Qiao
- Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Lijiang Yang
- Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
| | - Yi Qin Gao
- Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China
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3
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Shafiei M, von Domaros M, Bratko D, Luzar A. Anisotropic structure and dynamics of water under static electric fields. J Chem Phys 2019; 150:074505. [DOI: 10.1063/1.5079393] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Affiliation(s)
- Mahdi Shafiei
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, USA
| | - Michael von Domaros
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, USA
| | - Dusan Bratko
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, USA
| | - Alenka Luzar
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, USA
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4
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Han S. Anionic effects on the structure and dynamics of water in superconcentrated aqueous electrolytes. RSC Adv 2019; 9:609-619. [PMID: 35517604 PMCID: PMC9059539 DOI: 10.1039/c8ra09589b] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 12/09/2018] [Indexed: 12/19/2022] Open
Abstract
Dissolved ions in aqueous solutions are ubiquitous in a variety of systems and the addition of ions to water gives rise to dramatic effects on the properties of water. Due to a significant role of ions in the structure and dynamics of water, the ionic conditions, such as the ion type and concentration, have been considered as critical factors. Here we study the effects of anions on the structure and dynamics of water in aqueous electrolytes for various lithium salt concentrations via extensive molecular dynamics simulations. Our results demonstrate that a certain amount of salt is needed to show the different properties of water caused by the presence of different types of anion. Below the cutoff concentration, most features of water show the same characteristics in spite of the presence of different anions. In the superconcentrated limit, we find that full disruption of the hydrogen bond network between water molecules occurs for most anions investigated, indicating that the effect of the water–water interaction becomes negligible. However, a certain type of anion could enhance an ion-pairing of cations and anions and the water–water interaction remains considerable even in the superconcentrated limit. We further investigate the cationic and anionic hydration shell structures and dynamics, revealing their dependence on the anion type and the salt concentration. Finally, we observe that the anionic effects on water extend to the dynamics of water molecules, such as an anionic dependence of the onset of subdiffusive translation and anisotropic rotation. The effects of anions on the properties of water are examined for various salt concentrations.![]()
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Affiliation(s)
- Sungho Han
- CAE Group
- Platform Technology Lab
- Samsung Advanced Institute of Technology
- Suwon
- Korea
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5
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Dynamic features of water molecules in superconcentrated aqueous electrolytes. Sci Rep 2018; 8:9347. [PMID: 29921880 PMCID: PMC6008419 DOI: 10.1038/s41598-018-27706-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 06/08/2018] [Indexed: 11/13/2022] Open
Abstract
An existence of ions dissolved in water has significant effects on bulk properties of water. Superconcentrated conditions have been recently proposed to provide a new concept of lithium ion batteries in order to overcome limitations for practical applications. In those conditions, water would undergo significant changes in structure and dynamics compared to its bulk properties. However, little is known about water in superconcentrated aqueous electrolytes. Here we study the properties of water in aqueous electrolytes with various salt concentrations via molecular dynamics simulations. We find that new dynamic features of water arise in the limit of an extremely high salt concentration. In particular, we observe a decoupled temporal character of water molecules exhibiting a subdiffusive translation and a diffusive rotation in the superconcentrated condition. Furthermore, we find that the rotational dynamics for each principal axis of a water molecule differently responds to the salt concentration, resulting in an occurrence of anisotropy in the rotation as the salt concentration increases. The superconcentrated environments also invoke new features in the hydrogen-bonding characteristics of water such as an emergence of two time scales in the hydrogen bond dynamics of water with respect to the salt concentration.
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6
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Elola MD, Rodriguez J. Influence of Cholesterol on the Dynamics of Hydration in Phospholipid Bilayers. J Phys Chem B 2018; 122:5897-5907. [PMID: 29742895 DOI: 10.1021/acs.jpcb.8b00360] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We investigate the dynamics of interfacial waters in dipalmitoylphosphatidylcholine (DPPC) bilayers upon the addition of cholesterol, by molecular dynamics simulations. Our data reveal that the inclusion of cholesterol modifies the membrane aqueous interfacial dynamics: waters diffuse faster, their rotational decay time is shorter, and the DPPC/water hydrogen bond dynamics relaxes faster than in the pure DPPC membrane. The observed acceleration of the translational water dynamics agrees with recent experimental results, in which, by means of NMR techniques, an increment of the surface water diffusivity is measured upon the addition of cholesterol. A microscopic analysis of the lipid/water hydrogen bond network at the interfacial region suggests that the mechanism underlying the observed water mobility enhancement is given by the rupture of a fraction of interlipid water bridge hydrogen bonds connecting two different DPPC molecules, concomitant to the formation of new lipid/solvent bonds, whose dynamics is faster than that of the former. The consideration of a simple two-state model for the decay of the hydrogen bond correlation function yielded excellent results, obtaining two well-separated characteristic time scales: a slow one (∼250 ps) associated with bonds linking two DPPC molecules, and a fast one (∼15 ps), related to DPPC/solvent bonds.
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Affiliation(s)
- M Dolores Elola
- Departamento de Física , Comisión Nacional de Energía Atómica , Av Libertador 8250, 1429 Buenos Aires , Argentina
| | - Javier Rodriguez
- Departamento de Física , Comisión Nacional de Energía Atómica , Av Libertador 8250, 1429 Buenos Aires , Argentina.,ECyT , UNSAM , Martín de Irigoyen 3100, 1650 San Martín, Provincia de Buenos Aires , Argentina
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7
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Ruiz Pestana L, Felberg LE, Head-Gordon T. Coexistence of Multilayered Phases of Confined Water: The Importance of Flexible Confining Surfaces. ACS NANO 2018; 12:448-454. [PMID: 29236478 DOI: 10.1021/acsnano.7b06805] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Flexible nanoscale confinement is critical to understanding the role that bending fluctuations play on biological processes where soft interfaces are ubiquitous or to exploit confinement effects in engineered systems where inherently flexible 2D materials are pervasively employed. Here, using molecular dynamics simulations, we compare the phase behavior of water confined between flexible and rigid graphene sheets as a function of the in-plane density, ρ2D. We find that both cases show commensurate mono-, bi-, and trilayered states; however, the water phase in those states and the transitions between them are qualitatively different for the rigid and flexible cases. The rigid systems exhibit discontinuous transitions between an (n)-layer and an (n+1)-layer state at particular values of ρ2D, whereas under flexible confinement, the graphene sheets bend to accommodate an (n)-layer and an (n+1)-layer state coexisting in equilibrium at the same density. We show that the flexible walls introduce a very different sequence of ice phases and their phase coexistence with vapor and liquid phases than that observed with rigid walls. We discuss the applicability of these results to real experimental systems to shed light on the role of flexible confinement and its interplay with commensurability effects.
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Affiliation(s)
- Luis Ruiz Pestana
- Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | | | - Teresa Head-Gordon
- Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
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8
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Jalalitalab E, Abbaspour M, Akbarzadeh H. Thermodynamic, structural, and dynamical properties of nano-confined water using SPC/E and TIP4P models by molecular dynamics simulations. NEW J CHEM 2018. [DOI: 10.1039/c8nj01185k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Different morphologies of water molecules are confined between two parallel graphene surfaces.
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9
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Yang M. Validity of Förster Theory for Vibrational Energy Transfer in Low-Dimensional Water. J Phys Chem B 2015; 119:15516-21. [DOI: 10.1021/acs.jpcb.5b10371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mino Yang
- Department of Chemistry, Chungbuk National University, Cheongju, Chungbuk 28644, Korea
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10
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Mei F, Zhou X, Kou J, Wu F, Wang C, Lu H. A transition between bistable ice when coupling electric field and nanoconfinement. J Chem Phys 2015; 142:134704. [DOI: 10.1063/1.4916521] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Feng Mei
- Department of Physics, Zhejiang Normal University, Jinhua 321004, China
- Department of Physics, Zhejiang University, Hangzhou 310027, China
| | - Xiaoyan Zhou
- Department of Physics, Zhejiang Normal University, Jinhua 321004, China
- Department of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China
| | - Jianlong Kou
- Department of Physics, Zhejiang Normal University, Jinhua 321004, China
| | - Fengmin Wu
- Department of Physics, Zhejiang Normal University, Jinhua 321004, China
- Department of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China
| | - Chunlei Wang
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, P.O. Box 800-204, Shanghai 201800, China
| | - Hangjun Lu
- Department of Physics, Zhejiang Normal University, Jinhua 321004, China
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11
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Qian Z, Wei G. Electric-Field-Induced Phase Transition of Confined Water Nanofilms between Two Graphene Sheets. J Phys Chem A 2014; 118:8922-8. [DOI: 10.1021/jp500989t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Zhenyu Qian
- State Key
Laboratory of Surface
Physics, Key Laboratory for Computational Physical Sciences (MOE),
and Department of Physics, Fudan University, Shanghai 200433, P. R. China
| | - Guanghong Wei
- State Key
Laboratory of Surface
Physics, Key Laboratory for Computational Physical Sciences (MOE),
and Department of Physics, Fudan University, Shanghai 200433, P. R. China
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