1
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Gao XF, Hood DJ, Bertram TH, Nathanson GM. Probing the interfacial structure of aqueous surfactants through helium atom evaporation. Faraday Discuss 2024; 251:342-360. [PMID: 38757506 DOI: 10.1039/d3fd00177f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Dissolved helium atoms evaporate from liquids in super-Maxwellian speed distributions because their interactions are too weak to enforce full thermal equilibration at the surface as they are "squeezed" out of solution. The excess speeds of these He atoms reflect their final interactions with solvent and solute molecules at the surfaces of water and other liquids. We extend this observation by monitoring He atom evaporation from salty water solutions coated with surfactants. These surface-active molecules span neutral, anionic, and cationic amphiphiles: butanol, 3-methyl-1-butanol, pentanol, pentanoic acid, pentanoate, tetrabutylammonium, benzyltrimethylammonium, hexyltrimethylammonium, and dodecyltrimethylammonium, each characterized by surface tension measurements. The helium energy distributions, recorded in vacuum using a salty water microjet, reveal a sharp distinction between neutral and ionic surfactant films. Helium atoms evaporate through neutral surfactant monolayers in speed distributions that are similar to a pure hydrocarbon, reflecting the common alkyl chains of both. In contrast, He atoms appear to evaporate through ionic surfactant layers in distributions that are closer to pure salty water. We speculate that the ionic surfactants distribute themselves more loosely and deeply through the top layers of the aqueous solution than do neutral surfactants, with gaps between the surfactants that may be filled with salty water. This difference is supported by prior molecular dynamics simulations and ion scattering measurements of surfactant solutions.
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Affiliation(s)
- Xiao-Fei Gao
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin, 53706, USA.
| | - David J Hood
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin, 53706, USA.
| | - Timothy H Bertram
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin, 53706, USA.
| | - Gilbert M Nathanson
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin, 53706, USA.
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2
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Lbadaoui-Darvas M, Garberoglio G, Karadima KS, Cordeiro MNDS, Nenes A, Takahama S. Molecular simulations of interfacial systems: challenges, applications and future perspectives. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1980215] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Mária Lbadaoui-Darvas
- ENAC/IIE; Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland
| | - Giovanni Garberoglio
- European Centre for Theoretical Studies in Nuclear Physics and Related Areas (FBK-ECT*), Trento, Italy
- Trento Institute for Fundamental Physics and Applications (TIFPA-INFN), Trento, Italy
| | - Katerina S. Karadima
- Department of Chemical Engineering, University of Patras, Patras, Greece
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas(FORTH-ICE/HT), Patras, Greece
| | | | - Athanasios Nenes
- ENAC/IIE; Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas(FORTH-ICE/HT), Patras, Greece
| | - Satoshi Takahama
- ENAC/IIE; Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland
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3
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Diveky ME, Gleichweit MJ, Roy S, Signorell R. Shining New Light on the Kinetics of Water Uptake by Organic Aerosol Particles. J Phys Chem A 2021; 125:3528-3548. [PMID: 33739837 DOI: 10.1021/acs.jpca.1c00202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The uptake of water vapor by various organic aerosols is important in a number of applications ranging from medical delivery of pharmaceutical aerosols to cloud formation in the atmosphere. The coefficient that describes the probability that the impinging gas-phase molecule sticks to the surface of interest is called the mass accommodation coefficient, αM. Despite the importance of this coefficient for the description of water uptake kinetics, accurate values are still lacking for many systems. In this Feature Article, we present various experimental techniques that have been evoked in the literature to study the interfacial transport of water and discuss the corresponding strengths and limitations. This includes our recently developed technique called photothermal single-particle spectroscopy (PSPS). The PSPS technique allows for a retrieval of αM values from three independent, yet simultaneous measurements operating close to equilibrium, providing a robust assessment of interfacial mass transport. We review the currently available data for αM for water on various organics and discuss the few studies that address the temperature and relative humidity dependence of αM for water on organics. The knowledge of the latter, for example, is crucial to assess the water uptake kinetics of organic aerosols in the Earth's atmosphere. Finally, we argue that PSPS might also be a viable method to better restrict the αM value for water on liquid water.
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Affiliation(s)
- Matus E Diveky
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland
| | - Michael J Gleichweit
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland
| | - Sandra Roy
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland
| | - Ruth Signorell
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland
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4
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Gord JR, Zhao X, Liu E, Bertram TH, Nathanson GM. Control of Interfacial Cl2 and N2O5 Reactivity by a Zwitterionic Phospholipid in Comparison with Ionic and Uncharged Surfactants. J Phys Chem A 2018; 122:6593-6604. [DOI: 10.1021/acs.jpca.8b04590] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Joseph R. Gord
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Xianyuan Zhao
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Erica Liu
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Timothy H. Bertram
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Gilbert M. Nathanson
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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5
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Kong X, Toubin C, Habartova A, Pluharova E, Roeselova M, Pettersson JBC. Rapid Water Transport through Organic Layers on Ice. J Phys Chem A 2018; 122:4861-4868. [PMID: 29741896 DOI: 10.1021/acs.jpca.8b01951] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Processes involving atmospheric aerosol and cloud particles are affected by condensation of organic compounds that are omnipresent in the atmosphere. On ice particles, organic compounds with hydrophilic functional groups form hydrogen bonds with the ice and orient their hydrophobic groups away from the surface. The organic layer has been expected to constitute a barrier to gas uptake, but recent experimental studies suggest that the accommodation of water molecules on ice is only weakly affected by condensed short-chain alcohol layers. Here, we employ molecular dynamics simulations to study the water interactions with n-butanol covered ice at 200 K and show that the small effect of the condensed layer is due to efficient diffusion of water molecules along the surface plane while seeking appropriate sites to penetrate, followed by penetration driven by the combined attractive forces from butanol OH groups and water molecules within the ice. The water molecules that penetrate through the n-butanol layer become strongly bonded by approximately three hydrogen bonds at the butanol-ice interface. The obtained accommodation coefficient (0.81 ± 0.03) is in excellent agreement with results from previous environmental molecular beam experiments, leading to a picture where an adsorbed n-butanol layer does not alter the apparent accommodation coefficient but dramatically changes the detailed molecular dynamics and kinetics.
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Affiliation(s)
- Xiangrui Kong
- Department of Chemistry and Molecular Biology, Atmospheric Science , University of Gothenburg , SE-41296 Gothenburg , Sweden
| | - Céline Toubin
- Laboratoire PhLAM, UMR 8523 , Université de Lille , F-59000 Lille , France
| | - Alena Habartova
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6, Czech Republic
| | - Eva Pluharova
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6, Czech Republic.,J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences , Dolejskova 2155/3 , CZ-18223 Prague 8, Czech Republic
| | - Martina Roeselova
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6, Czech Republic
| | - Jan B C Pettersson
- Department of Chemistry and Molecular Biology, Atmospheric Science , University of Gothenburg , SE-41296 Gothenburg , Sweden
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6
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Li W, Pak CY, Tse YLS. Free energy study of H2O, N2O5, SO2, and O3 gas sorption by water droplets/slabs. J Chem Phys 2018; 148:164706. [DOI: 10.1063/1.5022389] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Wentao Li
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Chi Yuen Pak
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Ying-Lung Steve Tse
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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7
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Karnes JJ, Benjamin I. Miscibility at the immiscible liquid/liquid interface: A molecular dynamics study of thermodynamics and mechanism. J Chem Phys 2018; 148:034707. [PMID: 29352796 DOI: 10.1063/1.5012506] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Molecular dynamics simulations are used to study the dissolution of water into an adjacent, immiscible organic liquid phase. Equilibrium thermodynamic and structural properties are calculated during the transfer of water molecule(s) across the interface using umbrella sampling. The net free energy of transfer agrees reasonably well with experimental solubility values. We find that water molecules "prefer" to transfer into the adjacent phase one-at-a-time, without co-transfer of the hydration shell, as in the case of evaporation. To study the dynamics and mechanism of transfer of water to liquid nitrobenzene, we collected over 400 independent dissolution events. Analysis of these trajectories suggests that the transfer of water is facilitated by interfacial protrusions of the water phase into the organic phase, where one water molecule at the tip of the protrusion enters the organic phase by the breakup of a single hydrogen bond.
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Affiliation(s)
- John J Karnes
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, USA
| | - Ilan Benjamin
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, USA
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8
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Shaloski MA, Gord JR, Staudt S, Quinn SL, Bertram TH, Nathanson GM. Reactions of N2O5 with Salty and Surfactant-Coated Glycerol: Interfacial Conversion of Br– to Br2 Mediated by Alkylammonium Cations. J Phys Chem A 2017; 121:3708-3719. [DOI: 10.1021/acs.jpca.7b02040] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael A. Shaloski
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Joseph R. Gord
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Sean Staudt
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Sarah L. Quinn
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Timothy H. Bertram
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Gilbert M. Nathanson
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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9
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Liu X, Huang L, Guo D, Xie G. Infrared Thermography Investigation of an Evaporating Water/Oil Meniscus in Confined Geometry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:197-205. [PMID: 27997797 DOI: 10.1021/acs.langmuir.6b03482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To simulate the heat and mass transfer in real heterogeneous systems, such as metal-production processes and lubrication, the point-contact condition with the formation of narrowly confined liquid film and its surrounding meniscus was constructed to study the classical microchannel boiling problem in this work. Specifically, the evaporation and diffusion of the superheated water meniscus and water/oil droplet in the point-contact geometry were investigated. The emphasis is put on the influence of the contact-line transport behaviors on nucleation and bubble dynamics in the confined meniscus. The observations suggested that superheat is the necessary condition for bubble formation, and enough vapor supply is the necessary condition for bubble growth in the confined liquid. The oil film could significantly inhibit the evaporation and diffusion of water molecules in the superheat geometry. The water/oil droplet can exist for a long time even in the hot contact region, which could have sustained damages to the mechanical system suffering from water pollution. This work is of great significance to better understand the damage mechanism of water pollution to the mechanical system.
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Affiliation(s)
- Xiang Liu
- National Institute of Metrology , Beijing 100029, China
- State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, China
| | - Lu Huang
- National Institute of Metrology , Beijing 100029, China
- State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, China
| | - Dan Guo
- State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, China
| | - Guoxin Xie
- State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, China
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10
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Kikkawa N, Wang L, Morita A. Computational study of effect of water finger on ion transport through water-oil interface. J Chem Phys 2016; 145:014702. [DOI: 10.1063/1.4954774] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Nobuaki Kikkawa
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Lingjian Wang
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Akihiro Morita
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8520, Japan
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11
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Ergin G, Takahama S. Carbon Density Is an Indicator of Mass Accommodation Coefficient of Water on Organic-Coated Water Surface. J Phys Chem A 2016; 120:2885-93. [DOI: 10.1021/acs.jpca.6b01748] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gözde Ergin
- Atmospheric Particle and
Research Laboratory, School of Architecture, Civil and Environmental
Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Satoshi Takahama
- Atmospheric Particle and
Research Laboratory, School of Architecture, Civil and Environmental
Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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12
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Miles REH, Davies JF, Reid JP. The influence of the surface composition of mixed monolayer films on the evaporation coefficient of water. Phys Chem Chem Phys 2016; 18:19847-58. [DOI: 10.1039/c6cp03826c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The influence of mixed component organic surface films on the evaporation rate of water from an aqueous droplet is reported.
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Affiliation(s)
| | - James F. Davies
- School of Chemistry
- University of Bristol
- Bristol
- UK
- Chemical Sciences Division
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13
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Shaloski MA, Sobyra TB, Nathanson GM. DCl Transport through Dodecyl Sulfate Films on Salty Glycerol: Effects of Seawater Ions on Gas Entry. J Phys Chem A 2015; 119:12357-66. [DOI: 10.1021/acs.jpca.5b07298] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael A. Shaloski
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Thomas B. Sobyra
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Gilbert M. Nathanson
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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14
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Anand S, Rykaczewski K, Subramanyam SB, Beysens D, Varanasi KK. How droplets nucleate and grow on liquids and liquid impregnated surfaces. SOFT MATTER 2015; 11:69-80. [PMID: 25410939 DOI: 10.1039/c4sm01424c] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Condensation on liquids has been studied extensively in context of breath figure templating, materials synthesis and enhancing heat transfer using liquid impregnated surfaces. However, the mechanics of nucleation and growth on liquids remains unclear, especially on liquids that spread on the condensate. By examining the energy barriers of nucleation, we provide a framework to choose liquids that can lead to enhanced nucleation. We show that due to limits of vapor sorption within a liquid, nucleation is most favoured at the liquid-air interface and demonstrate that on spreading liquids, droplet submergence within the liquid occurs thereafter. We provide a direct visualization of the thin liquid profile that cloaks the condensed droplet on a liquid impregnated surface and elucidate the vapour transport mechanism in the liquid films. Finally, we show that although the viscosity of the liquid does not affect droplet nucleation, it plays a crucial role in droplet growth.
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Affiliation(s)
- Sushant Anand
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
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15
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Burden DK, Johnson AM, Krier JM, Nathanson GM. The Entry of HCl through Soluble Surfactants on Sulfuric Acid: Effects of Chain Branching. J Phys Chem B 2014; 118:7993-8001. [DOI: 10.1021/jp501080g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel K. Burden
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Alexis M. Johnson
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - James M. Krier
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Gilbert M. Nathanson
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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16
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Sakaguchi S, Morita A. Molecular Dynamics Study of Water Transfer at Supercooled Sulfuric Acid Solution Surface Covered with Butanol. J Phys Chem A 2013; 117:4602-10. [DOI: 10.1021/jp310305a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Suguru Sakaguchi
- Department of Chemistry, Graduate
School of Science, Tohoku University, Sendai
980-8578, Japan
| | - Akihiro Morita
- Department of Chemistry, Graduate
School of Science, Tohoku University, Sendai
980-8578, Japan
- Elements Strategy Initiative
for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8520, Japan
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