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Satheesh A, Navaneeth P, Suneesh PV, C S, Kandasamy E. Synthesis, characterization and study of electrochemical applicability of novel asymmetrically substituted 1,3-dialkyl-1,2,3-benzotriazolium salts for supercapacitor fabrication. RSC Adv 2023; 13:14737-14746. [PMID: 37197187 PMCID: PMC10184001 DOI: 10.1039/d3ra01958f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 04/27/2023] [Indexed: 05/19/2023] Open
Abstract
Here we report the successful synthesis, fabrication, and testing of novel asymmetrically substituted 1,3-dialkyl-1,2,3-benzotriazolium-based ionic liquids. Their applicability in energy storage is tested as gel polymer electrolytes (ILGPE) immobilized in poly(vinylidene fluoride-co-hexa-fluoropropylene) (PVDF-HFP) copolymer as a solid-state electrolyte in electric double layer capacitors (EDLC). Asymmetrically substituted 1,3-dialkyl-1,2,3-benzotriazolium salts of tetrafluoroborates (BF4-) and hexafluorophosphates (PF6-) are synthesized by anion exchange metathesis reaction using 1,3-dialkyl-1,2,3-benzotriazolium bromide salts. N-Alkylation followed by quaternization reaction results in dialkyl substitution on 1,2,3-benzotriazole. The synthesized ionic liquids were characterized with 1H-NMR, 13C-NMR, and FTIR spectroscopy. Their electrochemical and thermal properties were studied using cyclic voltammetry, impedance spectroscopy, thermogravimetric analysis, and differential scanning calorimetry. The 4.0 V potential windows obtained for asymmetrically substituted 1,3-dialkyl-1,2,3-benzotriazolium salts of BF4- and PF6- are promising electrolytes for energy storage. ILGPE tested with symmetrical EDLC with a wide operating window from 0-6.0 V gave an effective specific capacitance of 8.85 F g-1 at a lower scan rate of 2 mV s-1, the energy density of 2.9 μW h and 11.2 mW g-1 power density. The fabricated supercapacitor was employed for lighting red LED (2 V, 20 mA).
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Affiliation(s)
- Anjitha Satheesh
- Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham 641112 India
| | - Punnakkal Navaneeth
- Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham 641112 India
- Amrita Biosensor Research Lab, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham 641112 India
| | - Punathil Vasu Suneesh
- Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham 641112 India
- Amrita Biosensor Research Lab, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham 641112 India
| | - Sarathchandran C
- Department of Sciences, Amrita School of Engineering, Amrita Vishwa Vidyapeetham Chennai India
| | - Elango Kandasamy
- Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham 641112 India
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Kandagal VS, Pringle JM, Forsyth M, Chen F. Predicting gas selectivity in organic ionic plastic crystals by free energy calculations. RSC Adv 2021; 11:19623-19629. [PMID: 35479202 PMCID: PMC9033621 DOI: 10.1039/d1ra01844b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/24/2021] [Indexed: 01/02/2023] Open
Abstract
Organic ionic plastic crystals (OIPCs) are molecularly disordered solids, and their potential for the development of gas separation membranes has recently been demonstrated. Here, the gas absorption capability of the OIPC, diethyl(methyl)(isobutyl)phosphonium hexafluorophosphate ([P122i4][PF6]), for four gases is predicted through potential of mean force (PMF) calculations based on two methods – average force method and adaptive biasing force method. Both methods correctly predicted the different trends of adsorption and absorption of these gases across the OIPC–gas interface. The distinct energy barriers of the PMF profiles of CO2 and N2 near the interface directly reflect the good selectivity of OIPC to these two gases. However, the selectivity of CH4 and O2 cannot be accurately reflected by the PMF curve near the interface, because the relative energy varies greatly at different positions inside the OIPC. Thus the average free energy change should be calculated over the entire OIPC box to evaluate the difference in selectivity between the two gases. This also suggests that gas absorption in OIPCs is greatly affected by the structural order and chemical environment. The adaptive biasing force method overall outperforms the average force method. The method should be able to provide a prediction of gas selectivity for a wider range of organic ionic plastic crystals and other solid materials. The free energy calculation shows the different free energy changes of the adsorption and absorption of gas molecules into an organic ionic plastic crystal, successfully predicting the gas selectivity of this new type of gas separation material.![]()
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Affiliation(s)
- Vinay S. Kandagal
- Institute for Frontier Materials
- ARC Centre of Excellence for Electromaterials Science
- Deakin University
- Burwood
- Australia
| | - Jennifer M. Pringle
- Institute for Frontier Materials
- ARC Centre of Excellence for Electromaterials Science
- Deakin University
- Burwood
- Australia
| | - Maria Forsyth
- Institute for Frontier Materials
- ARC Centre of Excellence for Electromaterials Science
- Deakin University
- Burwood
- Australia
| | - Fangfang Chen
- Institute for Frontier Materials
- ARC Centre of Excellence for Electromaterials Science
- Deakin University
- Burwood
- Australia
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3
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Teramoto T, Ohoyama H. Evidence of Direct Dissolution of CO 2 into the Ionic Liquid [C 4min] [NTf 2] during Their Initial Interaction. J Phys Chem B 2020; 124:8331-8339. [PMID: 32856912 DOI: 10.1021/acs.jpcb.0c05172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ionic liquids (ILs) are known for their high ability to capture CO2. However, the mechanism of CO2 solubility into ILs during their initial interaction remains controversial. In this study, we analyzed the initial dissolution of CO2 into an IL 1-butyl-3-methylimidazolium bis-(trifluoromethylsulfonyl)imide ([C4min] [NTf2]) by measuring its solubility using a combination of a molecular beam and a flowing liquid jet sheet beam (FJSB) and the King and Wells method (KW method). The temperature dependence of the initial dissolution probability indicates that the solubility of CO2 in the IL [C4min] [NTf2] increases with increasing temperature. This result is not consistent with what has been reported in an equilibrium state. The initial dissolution probability was well-fitted by the Vogel-Fulcher-Tammann (VFT) equation, which describes the dynamical cage structure in IL systems. We also find that the initial dissolution probability was correlated to the cage lifetime and correlation length. The simple model of CO2 dissolution into an IL with the cage model was implemented to explain the experimental results in this study. Our results indicate that the initial dissolution of CO2 into the IL corresponds to a direct solution and not an uptake process.
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Affiliation(s)
- Takahiro Teramoto
- Institute for Radiation Sciences, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Hiroshi Ohoyama
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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Broderick A, Rocha MA, Khalifa Y, Shiflett MB, Newberg JT. Mass Transfer Thermodynamics through a Gas-Liquid Interface. J Phys Chem B 2019; 123:2576-2584. [PMID: 30803233 DOI: 10.1021/acs.jpcb.9b00958] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular level information about thermodynamic variations (enthalpy, entropy, and free energy) of a gas molecule as it crosses a gas-liquid interface is strongly lacking from an experimental perspective under equilibrium conditions. Herein, we perform in situ measurements of water interacting with the ionic liquid (IL) 1-butyl-3-methylimidazolium acetate, [C4mim][Ace], using ambient pressure X-ray photoelectron spectroscopy in order to assess the interfacial uptake of water quantitatively as a function of temperature, pressure, and water mole fraction ( xw). The surface spectroscopy results are compared to existing bulk water absorption experiments, showing that the amount of water in the interfacial region is consistently greater than that in the bulk. The enthalpy and entropy of water sorption vary significantly between the gas-liquid interface and the bulk as a function of xw, with a crossover that occurs near xw = 0.6 where the water-IL mixture converts from being homogeneous ( xw < 0.6) to nanostructured ( xw > 0.6). Free energy results reveal that water at the gas-IL interface is thermodynamically more favorable than that in the bulk, consistent with the enhanced water concentration in the interfacial region. The results herein show that the efficacy for an ionic liquid to absorb a gas phase molecule is not merely a function of bulk solvation parameters but also is significantly influenced by the thermodynamics occurring across the gas-IL interface during the mass transfer process.
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Affiliation(s)
- Alicia Broderick
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - M Alejandra Rocha
- Department of Chemical and Petroleum Engineering , University of Kansas , Lawrence , Kansas 66045 , United States
| | - Yehia Khalifa
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Mark B Shiflett
- Department of Chemical and Petroleum Engineering , University of Kansas , Lawrence , Kansas 66045 , United States
| | - John T Newberg
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
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Kandagal VS, Chen F, Pringle JM, Forsyth M. Atomistic Simulation of Gas Uptake and Interface-Induced Disordering in Solid Phases of an Organic Ionic Plastic Crystal. J Phys Chem B 2018; 122:8274-8283. [DOI: 10.1021/acs.jpcb.8b05444] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vinay S. Kandagal
- Deakin University, Melbourne, Australia, Institute for Frontier Materials, VIC 3125, Australia
| | - Fangfang Chen
- Deakin University, Melbourne, Australia, Institute for Frontier Materials, VIC 3125, Australia
| | - Jennifer M. Pringle
- Deakin University, Melbourne, Australia, Institute for Frontier Materials, VIC 3125, Australia
| | - Maria Forsyth
- Deakin University, Melbourne, Australia, Institute for Frontier Materials, VIC 3125, Australia
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6
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Chang TM, Dang LX. Li+ solvation and kinetics of Li+–BF4−/PF6− ion pairs in ethylene carbonate. A molecular dynamics study with classical rate theories. J Chem Phys 2017; 147:161709. [DOI: 10.1063/1.4991565] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Tsun-Mei Chang
- Department of Chemistry, University of Wisconsin–Parkside, Kenosha, Wisconsin 53141, USA
| | - Liem X. Dang
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 93352, USA
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7
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Li T, Zhao Z, Zhang X. Molecular dynamics investigation of thermo-physical properties and hydrogen-bonds of 1-ethyl-3-methylimidazolium dimethylphosphate-water system. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.04.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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MONDAL ANIRBAN, BALASUBRAMANIAN SUNDARAM. Molecular Dynamics Investigation of Efficient SO2 Absorption by Anion-Functionalized Ionic Liquids. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1236-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Dang LX, Chang TM. Rate theory of solvent exchange and kinetics of Li+ − BF4−/PF6− ion pairs in acetonitrile. J Chem Phys 2016; 145:094502. [DOI: 10.1063/1.4961904] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Liem X. Dang
- Physical Science Division, Pacific Northwest National Laboratory, Richland, Washington 93352, USA
| | - Tsun-Mei Chang
- Department of Chemistry, University of Wisconsin - Parkside, Kenosha, Wisconsin 53141, USA
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10
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Ferreira JVN, Capello TM, Siqueira LJA, Lago JHG, Caseli L. Mechanism of Action of Thymol on Cell Membranes Investigated through Lipid Langmuir Monolayers at the Air-Water Interface and Molecular Simulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3234-3241. [PMID: 26982820 DOI: 10.1021/acs.langmuir.6b00600] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A major challenge in the design of biocidal drugs is to identify compounds with potential action on microorganisms and to understand at the molecular level their mechanism of action. In this study, thymol, a monoterpenoid found in the oil of leaves of Lippia sidoides with possible action in biological surfaces, was incorporated in lipid monolayers at the air-water interface that represented cell membrane models. The interaction of thymol with dipalmitoylphosphatidylcholine (DPPC) at the air-water interface was investigated by means of surface pressure-area isotherms, Brewster angle microscopy (BAM), polarization-modulation reflection-absorption spectroscopy (PM-IRRAS), and molecular dynamics simulation. Thymol expands DPPC monolayers, decreases their surface elasticity, and changes the morphology of the lipid monolayer, which evidence the incorporation of this compound in the lipid Langmuir film. Such incorporation could be corroborated by PM-IRRAS since some specific bands for DPPC were changed upon thymol incorporation. Furthermore, potential of mean force obtained by molecular dynamics simulations indicates that the most stable position of the drug along the lipid film is near the hydrophobic regions of DPPC. These results may be useful to understand the interaction between thymol and cell membranes during biochemical phenomena, which may be associated with its pharmaceutical properties at the molecular level.
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Affiliation(s)
- João Victor N Ferreira
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo , Diadema, SP, Brazil
| | - Tabata M Capello
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo , Diadema, SP, Brazil
| | - Leonardo J A Siqueira
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo , Diadema, SP, Brazil
| | - João Henrique G Lago
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo , Diadema, SP, Brazil
| | - Luciano Caseli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo , Diadema, SP, Brazil
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11
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Corvo MC, Sardinha J, Casimiro T, Marin G, Seferin M, Einloft S, Menezes SC, Dupont J, Cabrita EJ. A Rational Approach to CO2 Capture by Imidazolium Ionic Liquids: Tuning CO2 Solubility by Cation Alkyl Branching. CHEMSUSCHEM 2015; 8:1935-1946. [PMID: 25916411 DOI: 10.1002/cssc.201500104] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/11/2015] [Indexed: 06/04/2023]
Abstract
Branching at the alkyl side chain of the imidazolium cation in ionic liquids (ILs) was evaluated towards its effect on carbon dioxide (CO2 ) solubilization at 10 and 80 bar (1 bar=1×10(5) Pa). By combining high-pressure NMR spectroscopy measurements with molecular dynamics simulations, a full description of the molecular interactions that take place in the IL-CO2 mixtures can be obtained. The introduction of a methyl group has a significant effect on CO2 solubility in comparison with linear or fluorinated analogues. The differences in CO2 solubility arise from differences in liquid organization caused by structural changes in the cation. ILs with branched cations have similar short-range cation-anion orientations as those in ILs with linear side chains, but present differences in the long-range order. The introduction of CO2 does not cause perturbations in the former and benefits from the differences in the latter. Branching at the cation results in sponge-like ILs with enhanced capabilities for CO2 capture.
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Affiliation(s)
- Marta C Corvo
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal).
| | - João Sardinha
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
| | - Teresa Casimiro
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
| | - Graciane Marin
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS (Brazil)
| | - Marcus Seferin
- PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
| | - Sandra Einloft
- PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
| | | | - Jairton Dupont
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS (Brazil)
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD (UK)
| | - Eurico J Cabrita
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal).
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Firaha DS, Hollóczki O, Kirchner B. Computer-Aided Design of Ionic Liquids as CO2Absorbents. Angew Chem Int Ed Engl 2015; 54:7805-9. [DOI: 10.1002/anie.201502296] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Indexed: 11/09/2022]
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13
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Firaha DS, Hollóczki O, Kirchner B. Computer-gestütztes Design ionischer Flüssigkeiten zur CO2-Absorption. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502296] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Rezabal E, Schäfer T. Ionic liquids as solvents of polar and non-polar solutes: affinity and coordination. Phys Chem Chem Phys 2015; 17:14588-97. [DOI: 10.1039/c5cp01774b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Evolution of H2O and CO2 interactions with an ionic liquid (IL) from gas phase to IL phase is described. Affinity is lost and coordination patterns vary in the process, favouring H2O–anion and CO2–cation interactions.
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Affiliation(s)
- Elixabete Rezabal
- Laboratoire de Chimie Moleculaire
- Department of Chemistry
- Ecole Polytechnique and CNRS
- 91128 Palaiseau Cedex
- France
| | - Thomas Schäfer
- POLYMAT
- University of the Basque Country UPV/EHU 20018 Donostia-San Sebastián
- Spain
- Ikerbasque
- Basque Foundation for Science
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15
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Chang TM, Dang LX. Computational studies of [bmim][PF6]/n-alcohol interfaces with many-body potentials. J Phys Chem A 2013; 118:7186-93. [PMID: 24063438 DOI: 10.1021/jp405910k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this paper, we present the results from molecular dynamics simulations of the equilibrium properties of liquid/liquid interfaces of room temperature ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]) and simple alcohols (i.e., methanol, 1-butanol, and 1-hexanol) at room temperature. Polarizable potential models are employed to describe the interactions among species. Results from our simulations show stable interfaces between the ionic liquid and n-alcohols, and we found that the interfacial widths decrease from methanol to 1-butanol systems and then increase for 1-hexanol interfaces. Angular distribution analysis reveals that the interface induces a strong orientational order of [bmim] and n-alcohol molecules near the interface, with [bmim] extending its butyl group into the alcohol phase, whereas the alcohol has the OH group pointing into the ionic liquid region, which is consistent with the recent sum-frequency-generation experiments. We found the interface to have a significant influence on the dynamics of ionic liquids and n-alcohols. The orientational autocorrelation functions illustrate that [bmim] rotates more freely near the interface than in the bulk, whereas the rotation of n-alcohol is hindered at the interface. Additionally, the time scale associated with the diffusion along the interfacial direction is found to be faster for [bmim] but slowed down for n-alcohols approaching the interface. We also calculate the dipole moment of n-alcohols as a function of the distance normal to the interface. We found that, even though methanol and 1-butanol have different dipole moments in bulk phase, they reach a similar value at the interface.
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Affiliation(s)
- Tsun-Mei Chang
- Department of Chemistry, University of Wisconsin , Parkside, Wisconsin 53141, United States
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16
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Lísal M, Izák P. Molecular dynamics simulations of n-hexane at 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide interface. J Chem Phys 2013; 139:014704. [DOI: 10.1063/1.4811673] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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17
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Chen JJ, Li WW, Yu HQ, Li XL. Capture of H2S from binary gas mixture by imidazolium-based ionic liquids with nonfluorous anions: A theoretical study. AIChE J 2013. [DOI: 10.1002/aic.14111] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jie-Jie Chen
- Dept. of Chemistry; University of Science & Technology of China; Hefei 230026 China
| | - Wen-Wei Li
- Dept. of Chemistry; University of Science & Technology of China; Hefei 230026 China
| | - Han-Qing Yu
- Dept. of Chemistry; University of Science & Technology of China; Hefei 230026 China
| | - Xue-Liang Li
- Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering, School of Chemical Engineering; Hefei University of Technology; Hefei 230009 China
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18
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Yang Y, Yu L. Theoretical investigations of ferrocene/ferrocenium solvation in imidazolium-based room-temperature ionic liquids. Phys Chem Chem Phys 2013; 15:2669-83. [DOI: 10.1039/c2cp42876h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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MacMillan AC, McIntire TM, Freites JA, Tobias DJ, Nizkorodov SA. Interaction of Water Vapor with the Surfaces of Imidazolium-Based Ionic Liquid Nanoparticles and Thin Films. J Phys Chem B 2012; 116:11255-65. [DOI: 10.1021/jp305029n] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Amanda C. MacMillan
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
| | - Theresa M. McIntire
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
| | - J. Alfredo Freites
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
| | - Douglas J. Tobias
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
| | - Sergey A. Nizkorodov
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
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20
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Lovelock KRJ. Influence of the ionic liquid/gas surface on ionic liquid chemistry. Phys Chem Chem Phys 2012; 14:5071-89. [PMID: 22349469 DOI: 10.1039/c2cp23851a] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Applications such as gas storage, gas separation, NP synthesis and supported ionic liquid phase catalysis depend upon the interaction of different species with the ionic liquid/gas surface. Consequently, these applications cannot proceed to the full extent of their potential without a profound understanding of the surface structure and properties. As a whole, this perspective contains more questions than answers, which demonstrates the current state of the field. Throughout this perspective, crucial questions are posed and a roadmap is proposed to answer these questions. A critical analysis is made of the field of ionic liquid/gas surface structure and properties, and a number of design rules are mined. The effects of ionic additives on the ionic liquid/gas surface structure are presented. A possible driving force for surface formation is discussed that has, to the best of my knowledge, not been postulated in the literature to date. This driving force suggests that for systems composed solely of ions, the rules for surface formation of dilute electrolytes do not apply. The interaction of neutral additives with the ionic liquid/gas surface is discussed. Particular attention is focussed upon H(2)O and CO(2), vital additives for many applications of ionic liquids. Correlations between ionic liquid/gas surface structure and properties, ionic liquid surfaces plus additives, and ionic liquid applications are given.
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Affiliation(s)
- Kevin R J Lovelock
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
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21
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Lísal M, Posel Z, Izák P. Air–liquid interfaces of imidazolium-based [TF2N−] ionic liquids: insight from molecular dynamics simulations. Phys Chem Chem Phys 2012; 14:5164-77. [DOI: 10.1039/c2cp23572b] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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22
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Hantal G, Voroshylova I, Cordeiro MNDS, Jorge M. A systematic molecular simulation study of ionic liquid surfaces using intrinsic analysis methods. Phys Chem Chem Phys 2012; 14:5200-13. [DOI: 10.1039/c2cp23967a] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Perez-Blanco ME, Maginn EJ. Molecular Dynamics Simulations of Carbon Dioxide and Water at an Ionic Liquid Interface. J Phys Chem B 2011; 115:10488-99. [DOI: 10.1021/jp203838j] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marcos E. Perez-Blanco
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
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