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Ghazoyan HH, Grigoryan ZL, Markarian SA, Chaban VV. Dimethyl Sulfoxide Heavily Extends Homogeneous Regions of the Propionitrile/DMSO/Water Mixtures. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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2
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Medesety P, Gade HM, Singh NK, Wanjari PP. Highly selective carbon capture by novel graphene-carbon nanotube hybrids. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1968391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Padmesh Medesety
- Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur, India
| | - Hrushikesh M. Gade
- Department of Chemical Engineering, Malaviya National Institute of Technology (MNIT), Jaipur, India
| | - Nitin Kumar Singh
- Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur, India
| | - Piyush P. Wanjari
- Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur, India
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3
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Rizi SH, Lohrasebi A. Water distillation modeling by disjoint CNT-based channels under the influence of external electric fields. J Mol Model 2020; 26:236. [PMID: 32812099 DOI: 10.1007/s00894-020-04492-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
Abstract
Using molecular dynamics method, the ion rejection and water flow inside flexible disjoint carbon-based channels were examined in the presence of electric fields. The effects of the carbon nanotube diameters and field magnitude on the nano-channel efficiency were investigated. It was observed that water flow through the filter was modified by increasing the radius of nanotubes, while the salt rejection was reduced. The particles' behaviors inside the channel were described in view of Van der Waals interactions between the water molecules, ions, and carbon atoms. Furthermore, the results indicated that the ion rejection and water flow were increased under the application of proper magnitude of electric fields. Graphical abstract Using MD simulation method, a disjoint CNT-based filter was designed to produce freshwater from a NaCl solution by the aid of external electric field. It was observed that the filter operation was significantly affected by channel structural parameters and amount of applied electric fields.
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Affiliation(s)
| | - A Lohrasebi
- Department of Physics, University of Isfahan, Isfahan, 8174673441, Iran.
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4
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Acetonitrile confined in carbon nanotubes, part I: Structure, dynamic and transport properties. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Wu L, Zhou X, Lu H, Liang Q, Kou J, Wu F, Fan J. A controllable water signal transistor. Phys Chem Chem Phys 2017; 19:9625-9629. [PMID: 28346547 DOI: 10.1039/c6cp08664k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We performed molecular dynamics simulations to study the regulating ability of water chains confined in a Y-shaped nanochannel. It was shown that a signal at the molecular level could be controlled by two other charge-induced signals when the water chains were confined in a Y-shaped nanochannel, demonstrating promising applications as water signal transistors in nanosignal systems. The mechanism of a water signal transistor is similar to a signal logic device. This remarkable ability to control the water signal is attributed to the strong dipole-ordering of the water chains in the nanochannel. The controllable water signal process of the Y-shaped nanochannel provides opportunities for future application in the design of molecular-scale signal devices.
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Affiliation(s)
- Lili Wu
- Xingzhi College, Institute of Condensed Matter Physics, and Zhejiang Province Key Laboratory of Solid State Optoelectronic Devices, Zhejiang Normal University, Jinhua 321004, China.
| | - Xiaoyan Zhou
- Xingzhi College, Institute of Condensed Matter Physics, and Zhejiang Province Key Laboratory of Solid State Optoelectronic Devices, Zhejiang Normal University, Jinhua 321004, China.
| | - Hangjun Lu
- Xingzhi College, Institute of Condensed Matter Physics, and Zhejiang Province Key Laboratory of Solid State Optoelectronic Devices, Zhejiang Normal University, Jinhua 321004, China.
| | - Qing Liang
- Xingzhi College, Institute of Condensed Matter Physics, and Zhejiang Province Key Laboratory of Solid State Optoelectronic Devices, Zhejiang Normal University, Jinhua 321004, China.
| | - Jianlong Kou
- Xingzhi College, Institute of Condensed Matter Physics, and Zhejiang Province Key Laboratory of Solid State Optoelectronic Devices, Zhejiang Normal University, Jinhua 321004, China.
| | - Fengmin Wu
- Xingzhi College, Institute of Condensed Matter Physics, and Zhejiang Province Key Laboratory of Solid State Optoelectronic Devices, Zhejiang Normal University, Jinhua 321004, China.
| | - Jintu Fan
- Department of Fiber Science and Apparel Design, Cornell University, Ithaca, NY 14853-4401, USA
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6
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Chaban VV, Pal S, Prezhdo OV. Laser-Induced Explosion of Nitrated Carbon Nanotubes: Nonadiabatic and Reactive Molecular Dynamics Simulations. J Am Chem Soc 2016; 138:15927-15934. [DOI: 10.1021/jacs.6b08082] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Vitaly V. Chaban
- Instituto
de Ciência e Tecnologia, Universidade Federal de São Paulo, São
José dos Campos, 12231-280 São Paulo, Brazil
| | - Sougata Pal
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Oleg V. Prezhdo
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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Tajiri T, Matsuzaki R, Shimamura Y. Simulation of water impregnation through vertically aligned CNT forests using a molecular dynamics method. Sci Rep 2016; 6:32262. [PMID: 27562112 PMCID: PMC4999798 DOI: 10.1038/srep32262] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 08/04/2016] [Indexed: 01/08/2023] Open
Abstract
The flow rate of water through carbon nanotube (CNT) membranes is considerably large. Hence, CNT membranes can be used in nanofluidic applications. In this work, we performed a molecular dynamics (MD) simulation of the introduction of water into CNTs in the CNT membranes, especially in vertically aligned CNT forests. The results showed that the Knudsen number (Kn) increased with an increasing volume fraction of CNT (VC) and was greater than 10−3 for each VC. Beyond this value, the flow became a slip flow. Further, the permeability increased as VC increased in the actual state calculated by the MD simulation, whereas the permeability in the no-slip state predicted by the Hagen–Poiseuille relationship decreased. Thus, a clear divergence in the permeability trend existed between the states. Finally, the flow enhancement ranged from 0.1 to 23,800, and the results show that water easily permeates as VC increases.
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Affiliation(s)
- Tomohiro Tajiri
- Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Ryosuke Matsuzaki
- Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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Ohba T, Chaban VV. A Highly Viscous Imidazolium Ionic Liquid inside Carbon Nanotubes. J Phys Chem B 2014; 118:6234-40. [DOI: 10.1021/jp502798e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Tomonori Ohba
- Graduate
School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Vitaly V. Chaban
- MEMPHYS
- Center for Biomembrane Physics, Syddansk Universitet, Odense M, 5230, Denmark
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9
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Lima MD, Li N, Jung de Andrade M, Fang S, Oh J, Spinks GM, Kozlov ME, Haines CS, Suh D, Foroughi J, Kim SJ, Chen Y, Ware T, Shin MK, Machado LD, Fonseca AF, Madden JDW, Voit WE, Galvão DS, Baughman RH. Electrically, Chemically, and Photonically Powered Torsional and Tensile Actuation of Hybrid Carbon Nanotube Yarn Muscles. Science 2012; 338:928-32. [DOI: 10.1126/science.1226762] [Citation(s) in RCA: 487] [Impact Index Per Article: 40.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Márcio D. Lima
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
| | - Na Li
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
- Centre of Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Mônica Jung de Andrade
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
| | - Shaoli Fang
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
| | - Jiyoung Oh
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
| | - Geoffrey M. Spinks
- Intelligent Polymer Research Institute, Australian Research Council Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Mikhail E. Kozlov
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
| | - Carter S. Haines
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
| | - Dongseok Suh
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
| | - Javad Foroughi
- Intelligent Polymer Research Institute, Australian Research Council Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Seon Jeong Kim
- Center for Bio-Artificial Muscle and Department of Biomedical Engineering, Hanyang University, Seoul 133-791, South Korea
| | - Yongsheng Chen
- Centre of Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Taylor Ware
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
| | - Min Kyoon Shin
- Center for Bio-Artificial Muscle and Department of Biomedical Engineering, Hanyang University, Seoul 133-791, South Korea
| | - Leonardo D. Machado
- Applied Physics Department, State University of Campinas, Campinas, SP, 13081-970, Brazil
| | - Alexandre F. Fonseca
- Faculdade de Ciências, Universidade Estadual Paulista, Bauru, SP, 17033-360, Brazil
| | - John D. W. Madden
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Walter E. Voit
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
| | - Douglas S. Galvão
- Applied Physics Department, State University of Campinas, Campinas, SP, 13081-970, Brazil
| | - Ray H. Baughman
- The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA
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10
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Wang S, Yin D, Li Z, Yang J. High-Pressure Phase Favored by a Symmetry-Recognized Nanoconfinement Effect. J Phys Chem Lett 2012; 3:2154-2158. [PMID: 26295763 DOI: 10.1021/jz3007047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Recently, a high-pressure phase (B2) of KI has been experimentally observed in the inner space of single-walled carbon nanotubes. Our first-principles calculations indicate that in a confined nanospace, relative stabilities of the high-pressure B2 phase and the low-pressure B1 phase of KI are not necessarily determined by their external pressures. As a result of crystal symmetry differences, different phases are preferred at different K/I ratios. Such a symmetry-recognized confinement effect opens a new avenue for nanomaterials synthesis.
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Affiliation(s)
- Shengnan Wang
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Di Yin
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhenyu Li
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jinlong Yang
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
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11
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Jiang DE, Jin Z, Henderson D, Wu J. Solvent Effect on the Pore-Size Dependence of an Organic Electrolyte Supercapacitor. J Phys Chem Lett 2012; 3:1727-1731. [PMID: 26291850 DOI: 10.1021/jz3004624] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Organic electrolytes such as tetraethylammonium tetrafluoroborate dissolved in acetonitrile (TEA-BF4/ACN) are widely used in commercial supercapacitors and academic research, but conflicting experimental results have been reported regarding the dependence of surface-area-normalized capacitance on the pore size. Here we show from a classical density functional theory the dependence of capacitance on the pore size from 0.5 to 3.0 nm for a model TEA-BF4/ACN electrolyte. We find that the capacitance-pore size curve becomes roughly flat after the first peak around the ion diameter, and the peak capacitance is not significantly higher than the large-pore average. We attribute the invariance of capacitance with the pore size to the formation of an electric double-layer structure that consists of counterions and highly organized solvent molecules. This work highlights the role of the solvent molecules in modulating the capacitance and reconciles apparently conflicting experimental reports.
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Affiliation(s)
- De-En Jiang
- †Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, United States
| | - Zhehui Jin
- ‡Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, United States
| | - Douglas Henderson
- §Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Jianzhong Wu
- ‡Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, United States
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12
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Xiu P, Tu Y, Tian X, Fang H, Zhou R. Molecular wire of urea in carbon nanotube: a molecular dynamics study. NANOSCALE 2012; 4:652-658. [PMID: 22159294 DOI: 10.1039/c1nr10793c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We perform molecular dynamics simulations of narrow single-walled carbon nanotubes (SWNTs) in aqueous urea to investigate the structure and dynamical behavior of urea molecules inside the SWNT. Even at low urea concentrations (e.g., 0.5 M), we have observed spontaneous and continuous filling of SWNT with a one-dimensional urea wire (leaving very few water molecules inside the SWNT). The urea wire is structurally ordered, both translationally and orientationally, with a contiguous hydrogen-bonded network and concerted urea's dipole orientations. Interestingly, despite the symmetric nature of the whole system, the potential energy profile of urea along the SWNT is asymmetric, arising from the ordering of asymmetric urea partial charge distribution (or dipole moment) in confined environment. Furthermore, we study the kinetics of confined urea and find that the permeation of urea molecules through the SWNT decreases significantly (by a factor of ∼20) compared to that of water molecules, due to the stronger dispersion interaction of urea with SWNT than water, and a maximum in urea permeation happens around a concentration of 5 M. These findings might shed some light on the better understanding of unique properties of molecular wires (particularly the wires formed by polar organic small molecules) confined within both artificial and biological nanochannels, and are expected to have practical applications such as the electronic devices for signal transduction and multiplication at the nanoscale.
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Affiliation(s)
- Peng Xiu
- Bio-X Lab, Department of Physics, and Soft Matter Research Center, Zhejiang University, Hangzhou, 310027, China
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13
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Chaban VV, Prezhdo OV. Water boiling inside carbon nanotubes: toward efficient drug release. ACS NANO 2011; 5:5647-55. [PMID: 21648482 DOI: 10.1021/nn201277a] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
We show using molecular dynamics simulation that spatial confinement of water inside carbon nanotubes (CNTs) substantially increases its boiling temperature and that a small temperature growth above the boiling point dramatically raises the inside pressure. Capillary theory successfully predicts the boiling point elevation down to 2 nm, below which large deviations between the theory and atomistic simulation take place. Water behaves qualitatively different inside narrow CNTs, exhibiting transition into an unusual phase, where pressure is gas-like and grows linearly with temperature, while the diffusion constant is temperature-independent. Precise control over boiling by CNT diameter, together with the rapid growth of inside pressure above the boiling point, suggests a novel drug delivery protocol. Polar drug molecules are packaged inside CNTs; the latter are delivered into living tissues and heated by laser. Solvent boiling facilitates drug release.
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Affiliation(s)
- Vitaly V Chaban
- Department of Chemistry, University of Rochester, Rochester, New York 14627, USA
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15
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Köfinger J, Dellago C. Single-file water as a one-dimensional Ising model. NEW JOURNAL OF PHYSICS 2010; 12:093044. [PMID: 22003314 PMCID: PMC3192505 DOI: 10.1088/1367-2630/12/9/093044] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We show that single-file water in nanopores can be viewed as a one-dimensional Ising model and investigate, on this basis, the static dielectric response of a chain of hydrogen-bonded water molecules to an external field. To this end, we use a recently developed dipole lattice model which accurately captures the free energetics of nanopore water. In this model, the total energy of the system can be expressed as a sum of effective interactions of chain ends and orientational defects. Neglecting these interactions, we essentially obtain the one-dimensional Ising model which allows us to derive analytical expressions for the free energy as a function of the total dipole moment and for the dielectric susceptibility. Our expressions, which agree very well with simulation results, provide the basis for the interpretation of future dielectric spectroscopy experiments on water-filled nanopore membranes.
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Affiliation(s)
- Jürgen Köfinger
- Laboratory of Chemical Physics, Bldg. 5, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, 20892
| | - Christoph Dellago
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria
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