1
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Kaneko K, Yoshimura Y, Shimizu A. Experimental and computational studies on the ion dissociation states of 1-butyl-3-methyimidazolium tetrafluoroborate in water and alcohols. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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2
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Liu X, Zong X, Xue S, He M. Regulating structure and flow of ionic liquid confined in nanochannel using water and electric field. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118612] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Wang YL, Li B, Sarman S, Mocci F, Lu ZY, Yuan J, Laaksonen A, Fayer MD. Microstructural and Dynamical Heterogeneities in Ionic Liquids. Chem Rev 2020; 120:5798-5877. [PMID: 32292036 PMCID: PMC7349628 DOI: 10.1021/acs.chemrev.9b00693] [Citation(s) in RCA: 192] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Indexed: 12/11/2022]
Abstract
Ionic liquids (ILs) are a special category of molten salts solely composed of ions with varied molecular symmetry and charge delocalization. The versatility in combining varied cation-anion moieties and in functionalizing ions with different atoms and molecular groups contributes to their peculiar interactions ranging from weak isotropic associations to strong, specific, and anisotropic forces. A delicate interplay among intra- and intermolecular interactions facilitates the formation of heterogeneous microstructures and liquid morphologies, which further contributes to their striking dynamical properties. Microstructural and dynamical heterogeneities of ILs lead to their multifaceted properties described by an inherent designer feature, which makes ILs important candidates for novel solvents, electrolytes, and functional materials in academia and industrial applications. Due to a massive number of combinations of ion pairs with ion species having distinct molecular structures and IL mixtures containing varied molecular solvents, a comprehensive understanding of their hierarchical structural and dynamical quantities is of great significance for a rational selection of ILs with appropriate properties and thereafter advancing their macroscopic functionalities in applications. In this review, we comprehensively trace recent advances in understanding delicate interplay of strong and weak interactions that underpin their complex phase behaviors with a particular emphasis on understanding heterogeneous microstructures and dynamics of ILs in bulk liquids, in mixtures with cosolvents, and in interfacial regions.
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Affiliation(s)
- Yong-Lei Wang
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Bin Li
- School
of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
| | - Sten Sarman
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Francesca Mocci
- Department
of Chemical and Geological Sciences, University
of Cagliari, I-09042 Monserrato, Italy
| | - Zhong-Yuan Lu
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, Changchun 130021, P. R. China
| | - Jiayin Yuan
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Aatto Laaksonen
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
- State
Key Laboratory of Materials-Oriented and Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Centre of
Advanced Research in Bionanoconjugates and Biopolymers, Petru Poni Institute of Macromolecular Chemistry Aleea Grigore Ghica-Voda, 41A, 700487 Iasi, Romania
- Department
of Engineering Sciences and Mathematics, Division of Energy Science, Luleå University of Technology, SE-97187 Luleå, Sweden
| | - Michael D. Fayer
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
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4
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Khoiroh I, Lee SY, Pirdashti M, Lee MJ. Insight into structural properties of polyethylene glycol monolaurate in water and alcohols from molecular dynamics studies. RSC Adv 2020; 10:21760-21771. [PMID: 35516635 PMCID: PMC9054503 DOI: 10.1039/c9ra09688d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 05/29/2020] [Indexed: 11/21/2022] Open
Abstract
By means of molecular dynamics (MD) simulations, we explored the structural properties of polyethylene glycol monolaurate (PEGML) in water and in various aliphatic alcohols (methanol, ethanol, 2-propanol, 2-butanol, tert-butanol, and 1-pentanol). The PEGML and the alcohols were simulated using the optimized potentials for liquid simulations, all-atom (OPLS-AA) force field and water using the extended simple point charge (SPC/E) model. From the isothermal-isobaric (NPT, constant number of particles, constant pressure, and constant temperature) ensemble, we extracted the densities from the simulations and compared them with those from experimental results in order to confirm the validity of the selected force fields. The densities from MD simulations are in good agreement with the experimental values. To gain more insight into the nature of interactions between the PEGML and the solvent molecules, we analyzed the hydrogen-bonds, the electrostatic (Coulomb) interactions, and the van der Waals (Lennard-Jones) interaction energies extracted from MD simulations. The results were further strengthened by computing the solvation free energy by employing the free energy perturbation (FEP) approach. In this method, the free energy difference was computed by using the Bennet Acceptance Ratio (BAR) method. Moreover, the radial distribution functions were analyzed in order to gain more understanding of the solution behavior at the molecular level.
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Affiliation(s)
- Ianatul Khoiroh
- Department of Chemical & Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia Jalan Broga 43500 Semenyih Selangor Darul Ehsan Malaysia +60-3-8924-8017 +60-3-8924-8361
| | - Sze Ying Lee
- Department of Chemical Engineering, Faculty of Engineering and Science, Universiti Tunku Abdul Rahman Sungai Long Campus Kajang 43000 Selangor Malaysia
| | - Mohsen Pirdashti
- Chemical Engineering Department, Faculty of Engineering, Shomal University PO Box 731 Amol Iran
| | - Ming-Jer Lee
- Department of Chemical Engineering, National Taiwan University of Science and Technology 43 Keelung Road, Section 4 Taipei 106-07 Taiwan
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5
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Reddy TDN, Mallik BS. Reciprocity between ion-dipole and hydrogen bond interactions in the binary mixtures of N,N-Dimethylformamide with ionic liquids. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Bystrov SS, Matveev VV, Egorov AV, Chernyshev YS, Konovalov VA, Balevičius V, Chizhik VI. Translational Diffusion in a Set of Imidazolium-Based Ionic Liquids [bmim] +A - and Their Mixtures with Water. J Phys Chem B 2019; 123:9187-9197. [PMID: 31591890 DOI: 10.1021/acs.jpcb.9b06802] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
As the development of the work (J. Phys. Chem. B 2019, 123 (10), 2362-2372), we have investigated the translational mobility in the same set of dried imidazolium-based ionic liquids (ILs) [bmim]A (A = BF4-, NO3-, TfO-, I-, Br-, and Cl-) in a wide temperature range using the NMR technique. It is shown that for the [bmim]+ cation, the temperature dependencies of product Dη do not follow the Stokes-Einstein relation for most systems studied, that is, the so-called "diffusion-viscosity decoupling" was realized. The correlation between local and translational mobility in pure IL of the [bmim][A] type was investigated using the data on NMR relaxation rates and diffusion coefficients. The most recent hypothesis of "water pockets" in mixtures of IL with water is critically discussed. Considering the totality of data in the literature and obtained here, we propose a specific model of the microstructure which may be applied up to water concentrations of 80-90 mol % (the structure of water-rich solutions is out of our current consideration). To confirm the model, molecular dynamics simulations of "IL-water" mixtures were also carried out.
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Affiliation(s)
- Sergei S Bystrov
- Saint-Petersburg State University , Ulyanovskaya str., 1 , 198504 Saint-Petersburg , Russia
| | - Vladimir V Matveev
- Saint-Petersburg State University , Ulyanovskaya str., 1 , 198504 Saint-Petersburg , Russia
| | - Andrei V Egorov
- Saint-Petersburg State University , Ulyanovskaya str., 1 , 198504 Saint-Petersburg , Russia
| | - Yurii S Chernyshev
- Saint-Petersburg State University , Ulyanovskaya str., 1 , 198504 Saint-Petersburg , Russia
| | - Vladislav A Konovalov
- Saint-Petersburg State University , Ulyanovskaya str., 1 , 198504 Saint-Petersburg , Russia
| | | | - Vladimir I Chizhik
- Saint-Petersburg State University , Ulyanovskaya str., 1 , 198504 Saint-Petersburg , Russia
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7
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Ordikhani Seyedlar A, Martins JPDA, Sebastião PJ, Jardim Beira MJ, Stapf S, Vaca Chávez F, Mattea C. Dynamics of binary mixtures of an ionic liquid and ethanol by NMR. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2018; 56:108-112. [PMID: 28568740 DOI: 10.1002/mrc.4620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/22/2017] [Accepted: 05/26/2017] [Indexed: 06/07/2023]
Abstract
A study of molecular dynamics of the ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoro-methylsulphonyl)imide ([Emim][Tf2N]) in solution with deuterated ethanol at different molar concentration and temperatures is presented. The study was performed using 1 H and 2 H nuclear magnetic relaxation and 2 H 1D spectroscopy. The temperature dependence of the spin-lattice relaxation time T1 of the cations allows the evaluation of the activation energies of the rotational degree of freedom of these molecules. The viscosity in the binary system increases with the concentration of ionic liquid. However, the activation energy in the cation molecules decreases when the concentration of the ionic liquid increases, indicating that the rotational dynamics is facilitated. This behavior is explained from the fact that the presence of the ionic liquid in the system disrupts the degree of intermediate range order expected in the alcohol system. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Amin Ordikhani Seyedlar
- Department of Technical Physics II/Polymer Physics, Institute of Physics, Ilmenau University of Technology, Ilmenau, D-98684, Germany
| | - João Pedro de Almeida Martins
- Centre of Physics and Engineering of Advanced Materials, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Pedro J Sebastião
- Centre of Physics and Engineering of Advanced Materials, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Maria José Jardim Beira
- Centre of Physics and Engineering of Advanced Materials, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Siegfried Stapf
- Department of Technical Physics II/Polymer Physics, Institute of Physics, Ilmenau University of Technology, Ilmenau, D-98684, Germany
| | - Fabián Vaca Chávez
- FAMAF - Universidad Nacional de Córdoba & IFEG-CONICET, Córdoba, Argentina
| | - Carlos Mattea
- Department of Technical Physics II/Polymer Physics, Institute of Physics, Ilmenau University of Technology, Ilmenau, D-98684, Germany
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8
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Docampo-Álvarez B, Gómez-González V, Méndez-Morales T, Rodríguez JR, Cabeza O, Turmine M, Gallego LJ, Varela LM. The effect of alkyl chain length on the structure and thermodynamics of protic–aprotic ionic liquid mixtures: a molecular dynamics study. Phys Chem Chem Phys 2018; 20:9938-9949. [DOI: 10.1039/c8cp00575c] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mixtures of protic and aprotic ionic liquids exhibit non-ideal behavior with increasing alkyl chain length, caused by the formation of molecular complexes.
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Affiliation(s)
- Borja Docampo-Álvarez
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Víctor Gómez-González
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Trinidad Méndez-Morales
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Julio R. Rodríguez
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Oscar Cabeza
- Departamento de Física e Ciencias da Terra
- Facultade de Ciencias
- Universidade da Coruña
- Campus A Zapateira s/n
- E-15071 A Coruña
| | - Mireille Turmine
- Sorbonne Université
- CNRS
- Laboratoire Interfaces et Systèmes Electrochimiques
- LISE
- Paris
| | - Luis J. Gallego
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Luis M. Varela
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
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9
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Atomistic insights into the thermodynamics, structure, and dynamics of ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate via molecular dynamics study. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Montes-Campos H, Otero-Mato JM, Méndez-Morales T, López-Lago E, Russina O, Cabeza O, Gallego LJ, Varela LM. Nanostructured solvation in mixtures of protic ionic liquids and long-chained alcohols. J Chem Phys 2017; 146:124503. [DOI: 10.1063/1.4978943] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hadrián Montes-Campos
- Grupo de Nanomateriais, Fotónica e Materia Branda, Departamentos de Física de Partículas e de Física Aplicada, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - José M. Otero-Mato
- Grupo de Nanomateriais, Fotónica e Materia Branda, Departamentos de Física de Partículas e de Física Aplicada, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - Trinidad Méndez-Morales
- Grupo de Nanomateriais, Fotónica e Materia Branda, Departamentos de Física de Partículas e de Física Aplicada, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - Elena López-Lago
- Grupo de Nanomateriais, Fotónica e Materia Branda, Departamentos de Física de Partículas e de Física Aplicada, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - Olga Russina
- Dipartimento di Chimica, Sapienza Università di Roma, Piazzale Aldo Moro 5, I-00185 Roma, Italy
| | - Oscar Cabeza
- Facultade de Ciencias, Universidade da Coruña, Campus A Zapateira s/n, E-15071 A Coruña, Spain
| | - Luis J. Gallego
- Grupo de Nanomateriais, Fotónica e Materia Branda, Departamentos de Física de Partículas e de Física Aplicada, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - Luis M. Varela
- Grupo de Nanomateriais, Fotónica e Materia Branda, Departamentos de Física de Partículas e de Física Aplicada, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
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11
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Wang YL, Shimpi MR, Sarman S, Antzutkin ON, Glavatskih S, Kloo L, Laaksonen A. Atomistic Insight into Tetraalkylphosphonium Bis(oxalato)borate Ionic Liquid/Water Mixtures. 2. Volumetric and Dynamic Properties. J Phys Chem B 2016; 120:7446-55. [DOI: 10.1021/acs.jpcb.6b02921] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Sten Sarman
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Oleg N. Antzutkin
- Chemistry
of Interfaces, Luleå University of Technology, SE-971 87 Luleå, Sweden
| | - Sergei Glavatskih
- Department
of Mechanical Construction and Production, Ghent University, B-9000 Ghent, Belgium
| | | | - Aatto Laaksonen
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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12
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Vaz ICM, Bhattacharjee A, Rocha MAA, Coutinho JAP, Bastos M, Santos LMNBF. Alcohols as molecular probes in ionic liquids: evidence for nanostructuration. Phys Chem Chem Phys 2016; 18:19267-75. [DOI: 10.1039/c6cp03616c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A comprehensive study of the solution and solvation of linear alcohols (propan-1-ol, butan-1-ol and pentan-1-ol) in ionic liquids (ILs) is presented.
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Affiliation(s)
- Inês C. M. Vaz
- Centro de Investigação em Química
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- P-4169-007 Porto
- Portugal
| | - Arijit Bhattacharjee
- Centro de Investigação em Química
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- P-4169-007 Porto
- Portugal
| | - Marisa A. A. Rocha
- Centro de Investigação em Química
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- P-4169-007 Porto
- Portugal
| | - João A. P. Coutinho
- Departamento de Química
- CICECO
- Universidade de Aveiro
- P-3810-193 Aveiro
- Portugal
| | - Margarida Bastos
- Centro de Investigação em Química
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- P-4169-007 Porto
- Portugal
| | - Luís M. N. B. F. Santos
- Centro de Investigação em Química
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- P-4169-007 Porto
- Portugal
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13
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Docampo-Álvarez B, Gómez-González V, Méndez-Morales T, Rodríguez JR, López-Lago E, Cabeza O, Gallego LJ, Varela LM. Molecular dynamics simulations of mixtures of protic and aprotic ionic liquids. Phys Chem Chem Phys 2016; 18:23932-43. [DOI: 10.1039/c6cp03700c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Molecular dynamics simulations of mixtures of the protic ionic liquid EAN and the aprotic [EMIM][BF4] are reported and the results are compared with experimental density and electrical conductivity measurements.
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Affiliation(s)
- Borja Docampo-Álvarez
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamentos de Física da Materia Condensada y Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Víctor Gómez-González
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamentos de Física da Materia Condensada y Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Trinidad Méndez-Morales
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamentos de Física da Materia Condensada y Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Julio R. Rodríguez
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamentos de Física da Materia Condensada y Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Elena López-Lago
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamentos de Física da Materia Condensada y Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Oscar Cabeza
- Departamento de Física
- Facultade de Ciencias
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - Luis J. Gallego
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamentos de Física da Materia Condensada y Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Luis M. Varela
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamentos de Física da Materia Condensada y Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
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14
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Solvation of molecular cosolvents and inorganic salts in ionic liquids: A review of molecular dynamics simulations. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.06.036] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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15
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Docampo-Álvarez B, Gómez-González V, Méndez-Morales T, Carrete J, Rodríguez JR, Cabeza Ó, Gallego LJ, Varela LM. Mixtures of protic ionic liquids and molecular cosolvents: A molecular dynamics simulation. J Chem Phys 2014; 140:214502. [DOI: 10.1063/1.4879660] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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16
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Ayala R, Ivanova S, Blanes JMM, Romero-Sarria F, Odriozola JA. Understanding the Role of the Cosolvent in the Zeolite Template Function of Imidazolium-Based Ionic Liquid. J Phys Chem B 2014; 118:3650-60. [DOI: 10.1021/jp410260g] [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)
- Regla Ayala
- Departamento de
Química
Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Universidad de Sevilla-CSIC, Avenida Américo Vespucio 441092 Sevilla, Spain
| | - Svetlana Ivanova
- Departamento de
Química
Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Universidad de Sevilla-CSIC, Avenida Américo Vespucio 441092 Sevilla, Spain
| | - José María Martínez Blanes
- Departamento de
Química
Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Universidad de Sevilla-CSIC, Avenida Américo Vespucio 441092 Sevilla, Spain
| | - Francisca Romero-Sarria
- Departamento de
Química
Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Universidad de Sevilla-CSIC, Avenida Américo Vespucio 441092 Sevilla, Spain
| | - José Antonio Odriozola
- Departamento de
Química
Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Universidad de Sevilla-CSIC, Avenida Américo Vespucio 441092 Sevilla, Spain
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17
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Separation of butanol from ABE mixtures by sweep gas pervaporation using a supported gelled ionic liquid membrane: Analysis of transport phenomena and selectivity. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2013.04.034] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Chaban VV, Prezhdo OV. Ionic and Molecular Liquids: Working Together for Robust Engineering. J Phys Chem Lett 2013; 4:1423-1431. [PMID: 26282294 DOI: 10.1021/jz400113y] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Because of their outstanding versatility, room-temperature ionic liquids (RTILs) are utilized in an ever increasing number of novel and fascinating applications, making them the Holy Grail of modern materials science. In this Perspective, we address the fundamental research and prospective applications of RTILs in combination with molecular liquids, concentrating on three significant areas: (1) the use of molecular liquids to decrease the viscosity of RTILs; (2) the role of RTIL micelle formation in water and organic solvents; and (3) the ability of RTILs to adsorb pollutant gases. Current achievements are examined, and future directions for the potential uses of RTILs are outlined.
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Affiliation(s)
- Vitaly V Chaban
- †Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
- ‡MEMPHYS - Center for Biomembrane Physics, Odense M. 5230, Denmark
| | - Oleg V Prezhdo
- †Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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Rilo E, Vila J, García-Garabal S, Varela LM, Cabeza O. Electrical conductivity of seven binary systems containing 1-ethyl-3-methyl imidazolium alkyl sulfate ionic liquids with water or ethanol at four temperatures. J Phys Chem B 2013; 117:1411-8. [PMID: 23301957 DOI: 10.1021/jp309891j] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present experimental measurements of specific electrical (or ionic) conductivity of seven binary systems of 1-ethyl-3-methyl imidazolium alkyl sulfate (EMIM-C(n)S) with water or ethanol. Electrical conductivity was measured at 298.15 K in all ranges of concentrations and selected mixtures also at 288.15, 308.15, and 318.15 K. The alkyl chains of the anions used are ethyl (EMIM-ES), butyl (EMIM-BS), hexyl (EMIM-HS), and, only for mixtures with ethanol, octyl (EMIM-OS). Let us note that the four ionic liquids (ILs) measured are miscible in water and ethanol at those temperatures and atmospheric pressure in all ranges of concentrations, but EMIM-OS jellifies for a given range of concentration with water. We compare the measured data in terms of the alkyl chain length and solvent nature. Data are compared with previously scarce results for these same systems and also for other aqueous and ethanol mixtures with ILs. In addition, we verify that our data fit the universal theoretical expression with no fitting parameters given by the pseudolattice-based Bahe-Varela model, except for IL concentrated mixtures. To fit well all ranges of concentrations, we add to the original equation two phenomenological terms with one fitting parameter each. Finally, we calculate the molar conductivity and fit it successfully with an expression derived from Onsager theory.
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Affiliation(s)
- E Rilo
- Departamento de Física, Facultade de Ciencias, Campus da Zapateira s/n. Universidade da Coruña, 15071 A Coruña, Spain
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Niazi AA, Rabideau BD, Ismail AE. Effects of Water Concentration on the Structural and Diffusion Properties of Imidazolium-Based Ionic Liquid–Water Mixtures. J Phys Chem B 2013; 117:1378-88. [DOI: 10.1021/jp3080496] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amir A. Niazi
- Aachener
Verfahrenstechnik: Molecular Simulations and
Transformations, Faculty of Mechanical Engineering, RWTH Aachen University, Schinkelstraße 2, 52062 Aachen,
Germany
| | - Brooks D. Rabideau
- Aachener
Verfahrenstechnik: Molecular Simulations and
Transformations, Faculty of Mechanical Engineering, RWTH Aachen University, Schinkelstraße 2, 52062 Aachen,
Germany
| | - Ahmed E. Ismail
- Aachener
Verfahrenstechnik: Molecular Simulations and
Transformations, Faculty of Mechanical Engineering, RWTH Aachen University, Schinkelstraße 2, 52062 Aachen,
Germany
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Taha M, Khoiroh I, Lee MJ. Phase Behavior and Molecular Dynamics Simulation Studies of New Aqueous Two-Phase Separation Systems Induced by HEPES Buffer. J Phys Chem B 2013; 117:563-82. [DOI: 10.1021/jp305516g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mohamed Taha
- Department
of Chemical Engineering, National Taiwan University of Science and Technology, 43 Keelung
Road, Section 4, Taipei 106-07, Taiwan
| | - Ianatul Khoiroh
- Department
of Chemical Engineering, National Taiwan University of Science and Technology, 43 Keelung
Road, Section 4, Taipei 106-07, Taiwan
| | - Ming-Jer Lee
- Department
of Chemical Engineering, National Taiwan University of Science and Technology, 43 Keelung
Road, Section 4, Taipei 106-07, Taiwan
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Kohno Y, Ohno H. Ionic liquid/water mixtures: from hostility to conciliation. Chem Commun (Camb) 2012; 48:7119-30. [PMID: 22683915 DOI: 10.1039/c2cc31638b] [Citation(s) in RCA: 223] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water was originally inimical to ionic liquids (ILs) especially in the analysis of their detailed properties. Various data on the properties of ILs indicate that there are two ways to design functions of ionic liquids. The first is to change the structure of component ions, to provide "task-specific ILs". The second is to mix ILs with other components, such as other ILs, organic solvents or water. Mixing makes it easy to control the properties of the solution. In this strategy, water is now a very important partner. Below, we summarise our recent results on the properties of IL/water mixtures. Stable phase separation is an effective method in some separation processes. Conversely, a dynamic phase change between a homogeneous mixture and separation of phases is important in many fields. Analysis of the relation between phase behaviour and the hydration state of the component ions indicates that the pattern of phase separation is governed by the hydrophilicity of the ions. Sufficiently hydrophilic ions yielded ILs that are miscible with water, and hydrophobic ions gave stable phase separation with water. ILs composed of hydrophobic but hydrated ions undergo a dynamic phase change between a homogeneous mixture and separate phases according to temperature. ILs having more than seven water molecules per ion pair undergo this phase transition. These dynamic phase changes are considered, with some examples, and application is made to the separation of water-soluble proteins.
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Affiliation(s)
- Yuki Kohno
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16, Koganei, Tokyo, 184-8588, Japan
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