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Sahoo CP, Panda DK, Bhargava BL. Computational insight into the effect of alkyl chain length in tetraalkylammonium-based deep eutectic solvents. J Mol Graph Model 2024; 128:108717. [PMID: 38281418 DOI: 10.1016/j.jmgm.2024.108717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 01/30/2024]
Abstract
The effect of the increase in the alkyl chain length of cation on the properties of deep eutectic solvents based on ethylene glycol has been investigated employing classical molecular dynamics simulations. The change in the structural and dynamic properties in both the bulk and liquid-vapor interface is explored through various analyses. The interaction between the anion and the ethylene glycol increases with an increase in the alkyl chain length of the cation, as observed in the increase of the lifetime of the hydrogen bond formed between the two. The terminal carbon atoms are found to be closer to each other when the cation changes from tetraethylammonium to tetrabutylammonium. The cations are located closer to the interface, and the association of the alkyl chains becomes more significant with increased alkyl chain length, decreasing the surface tension values.
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Affiliation(s)
- Chandan Prasad Sahoo
- School of Chemical Sciences, National Institute of Science Education & Research, An OCC of Homi Bhabha National Institute, P.O.: Jatni, Khurda, Odisha 752050, India
| | - Deepak Kumar Panda
- School of Chemical Sciences, National Institute of Science Education & Research, An OCC of Homi Bhabha National Institute, P.O.: Jatni, Khurda, Odisha 752050, India
| | - B L Bhargava
- School of Chemical Sciences, National Institute of Science Education & Research, An OCC of Homi Bhabha National Institute, P.O.: Jatni, Khurda, Odisha 752050, India.
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2
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Luan J, Cheng Y, Xue F, Cui L, Wang D. Refractive Index of 48 Neat Deep Eutectic Solvents and of Selected Mixtures: Effect of Temperature, Hydrogen-Bonding Donors, Hydrogen-Bonding Acceptors, Mole Ratio, and Water. ACS OMEGA 2023; 8:25582-25591. [PMID: 37483222 PMCID: PMC10357551 DOI: 10.1021/acsomega.3c03502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 06/16/2023] [Indexed: 07/25/2023]
Abstract
The refractive index (RI) is an important physiochemical property of deep eutectic solvents (DESs) for application in the optical identification of specific substances or measuring the concentration of solutes in solutions. However, the available data on the RI of DESs is limited. Here, a systematic investigation on the RI of 48 typical DESs and 30 mixtures with water was conducted under atmospheric pressure. The effect of temperature in the range 293.15-338.15 K, hydrogen-bonding donors (HBDs), and hydrogen-bonding acceptors (HBAs) on RI was investigated. Furthermore, the RI of DESs as a function of mass percentage in the range of 20-80% water was also studied. It was found that the RI of DESs and its aqueous binary mixtures decreases linearly with the increase of temperature. HBDs and HBAs had a significant influence on the RI of DESs. Among them, the RI of choline chloride (ChCl)/phenol and ChCl/o-cresol were obviously higher than those of other DESs. It was also found that the addition of water would decrease the RI of DESs, and the RI of DES content in percentage (wt %) of water binary mixtures increases linearly as a function of mass percentage of DESs for 20 DESs. However, for the other 10 DESs, there is no linear relationship between the RI and the DES content.
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Affiliation(s)
- Jinkai Luan
- School
of Chemistry and Chemical Engineering, Heze
Branch of Qilu University of Technology (Shandong Academy of Sciences), Heze 274000, China
- Shandong
Analysis and Test Center, Qilu University
of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Yan Cheng
- Shandong
Analysis and Test Center, Qilu University
of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Fumin Xue
- Shandong
Analysis and Test Center, Qilu University
of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Li Cui
- Shandong
Analysis and Test Center, Qilu University
of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Daijie Wang
- School
of Chemistry and Chemical Engineering, Heze
Branch of Qilu University of Technology (Shandong Academy of Sciences), Heze 274000, China
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3
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Getie FA, Ayele DW, Habtu NG, Yihun FA, Yemata TA, Ambaw MD, Worku AK. Binary glycerol-based deep eutectic solvents containing zinc nitrate hexahydrate salt for rechargeable zinc air batteries applications with enhanced properties. Heliyon 2023; 9:e17810. [PMID: 37455983 PMCID: PMC10339017 DOI: 10.1016/j.heliyon.2023.e17810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/18/2023] Open
Abstract
Deep eutectic solvents (DESs) have attracted interest due to their unique and favorable electrochemical characteristics. This study reported a novel binary glycerol-zinc salt deep eutectic solvents were prepared with a combination of hydrogen bond donor (glycerol (Gly)) and hydrogen bond acceptor (Zinc nitrate hexahydrate (ZNH)) at different molar ratios of 1:2, 1:3, 1:4, 1:5, and 1:6. The various physicochemical properties including viscosity, refractivity index, conductivity, thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), cyclic voltammetry (CV) and electrochemical impedance (EIS) were measured. The results showed that among the various combinations tested, DES 1:2 resulted in a low viscosity value of 690, 500, 310, 220, and 160 mPa (mPa s) at shear rate (S-1) values of 20, 30, 60, 100, and 200 respectively. Moreover, DES 1:2 resulted in more electrochemically stable solvents with a lower refractive index value of 1.446, and a higher conductivity (σ) of 4.41 mS/cm. The findings found disclose the features, nature and of properties of prepared DESs as a potential solvents for different electrochemical storage applications.
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Affiliation(s)
- Fentahun Adamu Getie
- Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
- Department of Chemistry, College of Natural and Computational Science, Injibara University, P.O. Box 40, Injibara, Ethiopia
| | - Delele Worku Ayele
- Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
- Department of Chemistry, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Nigus Gabbiye Habtu
- Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
- Faculty of Chemical Engineering, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
| | - Fantahun Aklog Yihun
- Department of Industrial Chemistry, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Temesgen Atnafu Yemata
- Faculty of Chemical Engineering, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
| | - Mehary Dagnaw Ambaw
- Department of Industrial Chemistry, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Ababay Ketema Worku
- Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia
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4
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Wang Y, Hou X, Zeng J, Wu K, He Y. Random forest models to predict the densities and surface tensions of deep eutectic solvents. AIChE J 2023. [DOI: 10.1002/aic.18095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Yan‐Xu Wang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China
- Institute of Zhejiang University‐Quzhou Quzhou 324000 China
| | - Xiao‐Jing Hou
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China
- Institute of Zhejiang University‐Quzhou Quzhou 324000 China
| | - Jing Zeng
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China
- Institute of Zhejiang University‐Quzhou Quzhou 324000 China
| | - Ke‐Jun Wu
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China
- Institute of Zhejiang University‐Quzhou Quzhou 324000 China
- School of Chemical and Process Engineering University of Leeds Leeds LS2 9JT UK
| | - Yuchen He
- State Key Laboratory of Industrial Control Technology, College of Control Science and Engineering Zhejiang University Hangzhou 310027 China
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5
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Freeman JS, Mamme MH, Ustarroz J, Warr GG, Li H, Atkin R. Molecular Resolution Nanostructure and Dynamics of the Deep Eutectic Solvent-Graphite Interface as a Function of Potential. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2204993. [PMID: 36627266 DOI: 10.1002/smll.202204993] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Interest in deep eutectic solvents (DESs), particularly for electrochemical applications, has boomed in the past decade because they are more versatile than conventional electrolyte solutions and are low cost, renewable, and non-toxic. The molecular scale lateral nanostructures as a function of potential at the solid-liquid interface-critical design parameters for the use of DESs as electrochemical solvents-are yet to be revealed. In this work, in situ amplitude modulated atomic force microscopy complemented by molecular dynamics simulations is used to probe the Stern and near-surface layers of the archetypal and by far most studied DES, 1:2 choline chloride:urea (reline), at the highly orientated pyrolytic graphite surface as a function of potential, to reveal highly ordered lateral nanostructures with unprecedented molecular resolution. This detail allows identification of choline, chloride, and urea in the Stern layer on graphite, and in some cases their orientations. Images obtained after the potential is switched from negative to positive show the dynamics of the Stern layer response, revealing that several minutes are required to reach equilibrium. These results provide valuable insight into the nanostructure and dynamics of DESs at the solid-liquid interface, with implications for the rational design of DESs for interfacial applications.
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Affiliation(s)
- Justin S Freeman
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Mesfin Haile Mamme
- Research Group Electrochemical and Surface Engineering (SURF), Vrije Universiteit Brussel (VUB), Pleinlaan 2, Brussels, 1050, Belgium
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, Brussels, 1050, Belgium
| | - Jon Ustarroz
- Research Group Electrochemical and Surface Engineering (SURF), Vrije Universiteit Brussel (VUB), Pleinlaan 2, Brussels, 1050, Belgium
- Chemistry of Surfaces, Interfaces and Nanomaterials (ChemSIN), Université Libre de Bruxelles, Boulevard du Triomphe 2, Brussels, 1050, Belgium
| | - Gregory G Warr
- School of Chemistry and University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Hua Li
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Rob Atkin
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
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6
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Morozova OV, Vasil'eva IS, Shumakovich GP, Zaitseva EA, Yaropolov AI. Deep Eutectic Solvents for Biotechnology Applications. BIOCHEMISTRY (MOSCOW) 2023; 88:S150-S175. [PMID: 37069119 DOI: 10.1134/s0006297923140092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Deep eutectic solvents (DESs) are an alternative to traditional organic solvents and ionic liquids and meet the requirements of "green" chemistry. They are easy to prepare using low-cost constituents, are non-toxic and biodegradable. The review analyzes literature on the use of DES in various fields of biotechnology, provides data on the types of DESs, methods for their preparation, and properties. The main areas of using DESs in biotechnology include extraction of physiologically active substances from natural resources, pretreatment of lignocellulosic biomass to improve enzymatic hydrolysis of cellulose, production of bioplastics, as well as a reaction medium for biocatalytic reactions. The aim of this review is to summarize available information on the use of new solvents for biotechnological purposes.
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Affiliation(s)
- Olga V Morozova
- Bach Institute of Biochemistry, Federal Research Center "Fundamental Bases of Biotechnology" of the Russian Academy of Sciences, Moscow, 119071, Russia
| | - Irina S Vasil'eva
- Bach Institute of Biochemistry, Federal Research Center "Fundamental Bases of Biotechnology" of the Russian Academy of Sciences, Moscow, 119071, Russia
| | - Galina P Shumakovich
- Bach Institute of Biochemistry, Federal Research Center "Fundamental Bases of Biotechnology" of the Russian Academy of Sciences, Moscow, 119071, Russia
| | - Elena A Zaitseva
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Alexander I Yaropolov
- Bach Institute of Biochemistry, Federal Research Center "Fundamental Bases of Biotechnology" of the Russian Academy of Sciences, Moscow, 119071, Russia.
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7
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Lemaoui T, Boublia A, Darwish AS, Alam M, Park S, Jeon BH, Banat F, Benguerba Y, AlNashef IM. Predicting the Surface Tension of Deep Eutectic Solvents Using Artificial Neural Networks. ACS OMEGA 2022; 7:32194-32207. [PMID: 36120015 PMCID: PMC9475633 DOI: 10.1021/acsomega.2c03458] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 08/15/2022] [Indexed: 05/17/2023]
Abstract
Studies on deep eutectic solvents (DESs), a new class of "green" solvents, are attracting increasing attention from researchers, as evidenced by the rapidly growing number of publications in the literature. One of the main advantages of DESs is that they are tailor-made solvents, and therefore, the number of potential DESs is extremely large. It is essential to have computational methods capable of predicting the physicochemical properties of DESs, which are needed in many industrial applications and research. Surface tension is one of the most important properties required in many applications. In this work, we report a relatively generalized artificial neural network (ANN) for predicting the surface tension of DESs. The database used can be considered comprehensive because it contains 1571 data points from 133 different DES mixtures in 520 compositions prepared from 18 ions and 63 hydrogen bond donors in a temperature range of 277-425 K. The ANN model uses molecular parameter inputs derived from the conductor-like screening model for real solvents (S σ-profiles). The training and testing results show that the best performing ANN architecture consisted of two hidden layers with 15 neurons each (9-15-15-1). The proposed ANN was excellent in predicting the surface tension of DESs, as R 2 values of 0.986 and 0.977 were obtained for training and testing, respectively, with an overall average absolute relative deviation of 2.20%. The proposed models represent an initiative to promote the development of robust models capable of predicting the properties of DESs based only on molecular parameters, leading to savings in investigation time and resources.
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Affiliation(s)
- Tarek Lemaoui
- Laboratoire
de Biopharmacie Et Pharmacotechnie (LPBT), Ferhat Abbas Setif 1 University, 19000 Setif, Algeria
- Research
and Innovation Center on CO2 and Hydrogen (RICH Center), Khalifa University of Science and Technology, 127788 Abu Dhabi, United Arab Emirates
| | - Abir Boublia
- Laboratoire
de Physico-Chimie des Hauts Polymères (LPCHP), Département
de Génie des Procédés, Faculté de Technologie, Université Ferhat ABBAS Sétif-1, 19000 Sétif, Algeria
- Research
and Innovation Center on CO2 and Hydrogen (RICH Center), Khalifa University of Science and Technology, 127788 Abu Dhabi, United Arab Emirates
| | - Ahmad S. Darwish
- Center
for Membrane and Advanced Water Technology (CMAT), Khalifa University, P.O. Box 127788, 127788 Abu Dhabi, United Arab
Emirates
- Department
of Chemical Engineering, Khalifa University
of Science and Technology, 127788 Abu Dhabi, United Arab Emirates
| | - Manawwer Alam
- Department
of Chemistry, College of Science, King Saud
University, P.O. Box 2455, 11451 Riyadh, Saudi Arabia
| | - Sungmin Park
- Department
of Civil and Environmental Engineering, Hanyang University, 222-Wangsimni-ro, Seongdong-gu, 04763 Seoul, Republic of Korea
| | - Byong-Hun Jeon
- Department
of Earth Resources and Environmental Engineering, Hanyang University, 04763 Seoul, Republic of Korea
| | - Fawzi Banat
- Center
for Membrane and Advanced Water Technology (CMAT), Khalifa University, P.O. Box 127788, 127788 Abu Dhabi, United Arab
Emirates
- Department
of Chemical Engineering, Khalifa University
of Science and Technology, 127788 Abu Dhabi, United Arab Emirates
| | - Yacine Benguerba
- Laboratoire
de Biopharmacie Et Pharmacotechnie (LPBT), Ferhat Abbas Setif 1 University, 19000 Setif, Algeria
| | - Inas M. AlNashef
- Center
for Membrane and Advanced Water Technology (CMAT), Khalifa University, P.O. Box 127788, 127788 Abu Dhabi, United Arab
Emirates
- Department
of Chemical Engineering, Khalifa University
of Science and Technology, 127788 Abu Dhabi, United Arab Emirates
- Research
and Innovation Center on CO2 and Hydrogen (RICH Center), Khalifa University of Science and Technology, 127788 Abu Dhabi, United Arab Emirates
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9
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Boublia A, Lemaoui T, Abu Hatab F, Darwish AS, Banat F, Benguerba Y, AlNashef IM. Molecular-Based Artificial Neural Network for Predicting the Electrical Conductivity of Deep Eutectic Solvents. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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10
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Jia J, Chen JB, Du J, Lian C, Xu S, Liu H, Li S, Liu Y. Self-assembled core-shell clusters in deep eutectic solvents based on tetra-n-alkylammonium cations for high dissolution of strongly hydrogen-bonded small molecules. J Colloid Interface Sci 2022; 628:426-436. [DOI: 10.1016/j.jcis.2022.07.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/12/2022] [Accepted: 07/23/2022] [Indexed: 10/16/2022]
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11
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Zhao L, Zhang J. Intermolecular interaction of diamine-diol binary system: A mini-review. Adv Colloid Interface Sci 2022; 304:102662. [PMID: 35453067 DOI: 10.1016/j.cis.2022.102662] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 11/01/2022]
Abstract
The highly selective chemical reaction of carbon dioxide with organic amines is considered to a mature technology and a feasible initial path for carbon capture. In order to solve the disadvantages of high volatility, equipment corrosion and high energy consumption of traditional organic amines, amine alcohol "mixture based" solution has been developed and showed excellent carbon dioxide absorption capacity, which is due to the positive effect of intermolecular interaction in amine alcohol "mixture based" solution system on thermodynamic properties. However, the influencing factors of the intermolecular force in multicomponent solution system are complex, including the chemical, physical, structural effects. Therefore, it is necessary to comprehensively use a variety of characterization methods to systematically understand the form of intermolecular interaction in multicomponent solution system. This review systematically discusses the determination of intermolecular interactions in diamine-diol multicomponent solutions by three mainstream research methods, theoretical calculation method, spectral method, and thermodynamic method, aiming to provide a theoretical reference for the industrial production, the supplement to experimental data, and construction and understanding of theoretical models of multicomponent solution system.
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Self-assembled nanostructure induced in deep eutectic solvents via an amphiphilic hydrogen bond donor. J Colloid Interface Sci 2022; 616:121-128. [DOI: 10.1016/j.jcis.2022.02.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/01/2022] [Accepted: 02/06/2022] [Indexed: 12/19/2022]
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13
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Khajeh A. Applying Molecular Approaches to the Estimation of Surface Tension of Deep Eutectic Solvents. J SOLUTION CHEM 2022. [DOI: 10.1007/s10953-022-01156-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Wong LN, Jones SD, Wood K, de Campo L, Darwish T, Moir M, Li H, Segalman RA, Warr GG, Atkin R. Polycation radius of gyration in a polymeric ionic liquid (PIL): the PIL melt is not a theta solvent. Phys Chem Chem Phys 2022; 24:4526-4532. [PMID: 35119064 DOI: 10.1039/d1cp05354j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The conformation of the polycation in the prototypical polymeric ionic liquid (PIL) poly(3-methyl-1-aminopropylimidazolylacrylamide) bis(trifluoromethylsulfonyl)imide (poly(3MAPIm)TFSI) was probed using small-angle neutron scattering (SANS) and ultra-small-angle neutron scattering (USANS) at 25 °C and 80 °C. Poly(3MAPIm)TFSI contains microvoids which lead to intense low q scattering that can be mitigated using mixtures of hydrogen- and deuterium-rich materials, allowing determination of the polycation conformation and radius of gyration (Rg). In the pure PIL, the polycation adopts a random coil conformation with Rg = 52 ± 0.5 Å. In contrast to conventional polymer melts, the pure PIL is not a theta solvent for the polycation. The TFSI- anions, which comprise 48% v/v of the PIL, are strongly attracted to the polycation and act like small solvent molecules which leads to chain swelling analogous to an entangled, semi-dilute, or concentrated polymer solution in a good solvent.
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Affiliation(s)
- Lucas N Wong
- School of Molecular Sciences, The University of Western Australia, Crawley, Perth 6009, Australia.
| | - Seamus D Jones
- Chemical Engineering Department and Materials Department, University of California, Santa Barbara, California 93106, USA
| | - Kathleen Wood
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW 2234, Australia
| | - Liliana de Campo
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW 2234, Australia
| | - Tamim Darwish
- National Deuteration Facility (NDF), ANSTO, Lucas Heights, NSW 2234, Australia
| | - Michael Moir
- National Deuteration Facility (NDF), ANSTO, Lucas Heights, NSW 2234, Australia
| | - Hua Li
- School of Molecular Sciences, The University of Western Australia, Crawley, Perth 6009, Australia.
| | - Rachel A Segalman
- Chemical Engineering Department and Materials Department, University of California, Santa Barbara, California 93106, USA
| | - Gregory G Warr
- School of Chemistry and University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia
| | - Rob Atkin
- School of Molecular Sciences, The University of Western Australia, Crawley, Perth 6009, Australia.
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15
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Adi Kurnia K, Zunita M, A. P. Coutinho J, Gede Wenten I, Santoso D. Development of quantitative structure-property relationship to predict the viscosity of deep eutectic solvent for CO2 capture using molecular descriptor. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118239] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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16
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Omar KA, Sadeghi R. New chloroacetic acid-based deep eutectic solvents for solubilizing metal oxides. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118393] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Li H, Zhang Y, Jones S, Segalman R, Warr GG, Atkin R. Interfacial nanostructure and friction of a polymeric ionic liquid-ionic liquid mixture as a function of potential at Au(111) electrode interface. J Colloid Interface Sci 2022; 606:1170-1178. [PMID: 34487936 DOI: 10.1016/j.jcis.2021.08.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/09/2021] [Accepted: 08/09/2021] [Indexed: 11/28/2022]
Abstract
HYPOTHESIS The polymeric cations of polymeric ionic liquids (PILs) can adsorb from the bulk of a conventional ionic liquid (IL) to the Au(111) electrode interface and form a boundary layer. The interfacial properties of the PIL boundary layer may be tuned by potential. EXPERIMENTS Atomic force microscopy has been used to investigate the changes of surface morphology, normal and lateral forces of a 5 wt% PIL/IL mixture as a function of potential. FINDINGS Polymeric cations adsorb strongly to Au(111) and form a polymeric cation-enriched boundary layer at -1.0 V. This boundary layer binds less strongly to the surface at open circuit potential (OCP) and weakly at + 1.0 V. The polymeric cation chains are compressed at -1.0 V and OCP owing to electrical attractions with the electrode surface, but fully stretched at + 1.0 V due to electrical repulsions. The lateral forces of the 5 wt% PIL/IL mixture at -1.0 V and OCP are higher than at + 1.0 V as the polymeric cation-enriched boundary layer is rougher and has stronger interactions with the AFM probe; at + 1.0 V, the lateral force is low and comparable to pure conventional IL due to displacement of polymeric cations with conventional anions in the boundary layer.
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Affiliation(s)
- Hua Li
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia; Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Perth, Western Australia, Australia.
| | - Yunxiao Zhang
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Seamus Jones
- Department of Chemical Engineering and Materials Department, University of California, Santa Barbara, Santa Barbara, CA 93106, United States
| | - Rachel Segalman
- Department of Chemical Engineering and Materials Department, University of California, Santa Barbara, Santa Barbara, CA 93106, United States
| | - Gregory G Warr
- School of Chemistry and Sydney Nano Institute, The University of Sydney, NSW 2006, Australia
| | - Rob Atkin
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia.
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Shi D, Zhou F, Mu W, Ling C, Mu T, Yu G, Li R. Deep insights into the viscosity of deep eutectic solvents by an XGBoost-based model plus SHapley Additive exPlanation. Phys Chem Chem Phys 2022; 24:26029-26036. [DOI: 10.1039/d2cp03423a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This work proposes a data-driven model which could predict the viscosity of diverse DESs accurately and rapidly, and the model interpretation given by SHAP deepens the understanding of the viscosity of DESs.
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Affiliation(s)
- Dingyi Shi
- College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Fengyi Zhou
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Wenbo Mu
- Department of Computer Science and Engineering, The Ohio State University, Columbus, OH, USA
- Faculty of Environment and Life, Beijing University of Technology, 100 Ping Le Yuan, Chaoyang District, Beijing, 100124, China
| | - Cheng Ling
- China Overseas International Center, Advanced Micro Devices, Inc. (AMD), Beijing, 100101, China
| | - Tiancheng Mu
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Gangqiang Yu
- Faculty of Environment and Life, Beijing University of Technology, 100 Ping Le Yuan, Chaoyang District, Beijing, 100124, China
| | - Ruiqi Li
- College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
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Brandão ATSC, Costa R, Silva AF, Pereira CM. Sustainable Preparation of Nanoporous Carbons via Dry Ball Milling: Electrochemical Studies Using Nanocarbon Composite Electrodes and a Deep Eutectic Solvent as Electrolyte. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3258. [PMID: 34947610 PMCID: PMC8709160 DOI: 10.3390/nano11123258] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 01/06/2023]
Abstract
The urgent need to reduce the consumption of fossil fuels drives the demand for renewable energy and has been attracting the interest of the scientific community to develop materials with improved energy storage properties. We propose a sustainable route to produce nanoporous carbon materials with a high-surface area from commercial graphite using a dry ball-milling procedure through a systematic study of the effects of dry ball-milling conditions on the properties of the modified carbons. The microstructure and morphology of the dry ball-milled graphite/carbon composites are characterized by BET (Brunauer-Emmett-Teller) analysis, SEM (scanning electron microscopy), ATR-FTIR (attenuated total reflectance-Fourier transform infrared spectroscopy) and Raman spectroscopy. As both the electrode and electrolyte play a significant role in any electrochemical energy storage device, the gravimetric capacitance was measured for ball-milled material/glassy carbon (GC) composite electrodes in contact with a deep eutectic solvent (DES) containing choline chloride and ethylene glycol as hydrogen bond donor (HBD) in a 1:2 molar ratio. Electrochemical stability was tracked by measuring charge/discharge curves. Carbons with different specific surface areas were tested and the relationship between the calculated capacitance and the surface treatment method was established. A five-fold increase in gravimetric capacitance, 25.27 F·g-1 (G40) against 5.45 F·g-1, was found for commercial graphene in contact with DES. Optimal milling time to achieve a higher surface area was also established.
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Affiliation(s)
| | | | | | - Carlos M. Pereira
- Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, CIQUP–Physical Analytical Chemistry and Electrochemistry Group, Rua do Campo Alegre, s/n, 4169−007 Porto, Portugal; (A.T.S.C.B.); (R.C.); (A.F.S.)
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20
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Bulk and interfacial nanostructure and properties in deep eutectic solvents: Current perspectives and future directions. J Colloid Interface Sci 2021; 608:2430-2454. [PMID: 34785053 DOI: 10.1016/j.jcis.2021.10.163] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 12/25/2022]
Abstract
Deep eutectic solvents (DESs) are a tailorable class of solvents that are rapidly gaining scientific and industrial interest. This is because they are distinct from conventional molecular solvents, inherently tuneable via careful selection of constituents, and possess many attractive properties for applications, including catalysis, chemical extraction, reaction media, novel lubricants, materials chemistry, and electrochemistry. DESs are a class of solvents composed solely of hydrogen bond donors and acceptors with a melting point lower than the individual components and are often fluidic at room temperature. A unique feature of DESs is that they possess distinct bulk liquid and interfacial nanostructure, which results from intra- and inter-molecular interactions, including coulomb forces, hydrogen bonding, van der Waals interactions, electrostatics, dispersion forces, and apolar-polar segregation. This nanostructure manifests as preferential spatial arrangements of the different species, and exists over several length scales, from molecular- to nano- and meso-scales. The physicochemical properties of DESs are dictated by structure-property relationships; however, there is a significant gap in our understanding of the underlying factors which govern their solvent properties. This is a major limitation of DES-based technologies, as nanostructure can significantly influence physical properties and thus potential applications. This perspective provides an overview of the current state of knowledge of DES nanostructure, both in the bulk liquid and at solid interfaces. We provide definitions which clearly distinguish DESs as a unique solvent class, rather than a subset of ILs. An appraisal of recent work provides hints towards trends in structure-property relationships, while also highlighting inconsistencies within the literature suggesting new research directions for the field. It is hoped that this review will provide insight into DES nanostructure, their potential applications, and development of a robust framework for systematic investigation moving forward.
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Elbourne A, Besford QA, Meftahi N, Crawford RJ, Daeneke T, Greaves TL, McConville CF, Bryant G, Bryant SJ, Christofferson AJ. The Impact of Water on the Lateral Nanostructure of a Deep Eutectic Solvent–Solid Interface. Aust J Chem 2021. [DOI: 10.1071/ch21078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Deep eutectic solvents (DESs) are tuneable solvents with attractive properties for numerous applications. Their structure–property relationships are still under investigation, especially at the solid–liquid interface. Moreover, the influence of water on interfacial nanostructure must be understood for process optimization. Here, we employ a combination of atomic force microscopy and molecular dynamics simulations to determine the lateral and surface-normal nanostructure of the DES choline chloride:glycerol at the mica interface with different concentrations of water. For the neat DES system, the lateral nanostructure is driven by polar interactions. The surface adsorbed layer forms a distinct rhomboidal symmetry, with a repeat spacing of ~0.9 nm, comprising all DES species. The adsorbed nanostructure remains largely unchanged in 75 mol-% DES compared with pure DES, but at 50 mol-%, the structure is broken and there is a compromise between the native DES and pure water structure. By 25 mol-% DES, the water species dominates the adsorbed liquid layer, leaving very few DES species aggregates at the interface. In contrast, the near-surface surface-normal nanostructure, over a depth of ~3 nm from the surface, remains relatively unchanged down to 25 mol-% DES where the liquid arrangement changed. These results demonstrate not only the significant influence that water has on liquid nanostructure, but also show that there is an asymmetric effect whereby water disrupts the nanostructure to a greater degree closer to the surface. This work provides insight into the complex interactions between DES and water and may enhance their optimization for surface-based applications.
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Khajeh A, Parvaneh K, Shakourian-Fard M. Refractive index prediction of deep eutectic solvents by molecular approaches. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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Natural-based chiral task-specific deep eutectic solvents: A novel, effective tool for enantiodiscrimination in electroanalysis. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138189] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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S Salehi H, Celebi AT, Vlugt TJH, Moultos OA. Thermodynamic, transport, and structural properties of hydrophobic deep eutectic solvents composed of tetraalkylammonium chloride and decanoic acid. J Chem Phys 2021; 154:144502. [PMID: 33858163 DOI: 10.1063/5.0047369] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
With the emergence of hydrophobic deep eutectic solvents (DESs), the scope of applications of DESs has been expanded to include situations in which miscibility with water is undesirable. Whereas most studies have focused on the applications of hydrophobic DESs from a practical standpoint, few theoretical works exist that investigate the structural and thermodynamic properties at the nanoscale. In this study, Molecular Dynamics (MD) simulations have been performed to model DESs composed of tetraalkylammonium chloride hydrogen bond acceptor and decanoic acid hydrogen bond donor (HBD) at a molar ratio of 1:2, with three different cation chain lengths (4, 7, and 8). After fine-tuning force field parameters, densities, viscosities, self-diffusivities, and ionic conductivities of the DESs were computed over a wide temperature range. The liquid structure was examined using radial distribution functions (RDFs) and hydrogen bond analysis. The MD simulations reproduced the experimental density and viscosity data from the literature reasonably well and were used to predict diffusivities and ionic conductivities, for which experimental data are scarce or unavailable. It was found that although an increase in the cation chain length considerably affected the density and transport properties of the DESs (i.e., yielding smaller densities and slower dynamics), no significant influence was observed on the RDFs and the hydrogen bonds. The self-diffusivities showed the following order for the mobility of the various components: HBD > anion > cation. Strong hydrogen bonds between the hydroxyl and carbonyl groups of decanoic acid and between the hydroxyl group of decanoic acid and chloride were observed to dominate the intermolecular interactions.
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Affiliation(s)
- Hirad S Salehi
- Engineering Thermodynamics, Process and Energy Department, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Leeghwaterstraat 39, 2628CB Delft, The Netherlands
| | - Alper T Celebi
- Engineering Thermodynamics, Process and Energy Department, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Leeghwaterstraat 39, 2628CB Delft, The Netherlands
| | - Thijs J H Vlugt
- Engineering Thermodynamics, Process and Energy Department, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Leeghwaterstraat 39, 2628CB Delft, The Netherlands
| | - Othonas A Moultos
- Engineering Thermodynamics, Process and Energy Department, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Leeghwaterstraat 39, 2628CB Delft, The Netherlands
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Group contribution and atomic contribution models for the prediction of various physical properties of deep eutectic solvents. Sci Rep 2021; 11:6684. [PMID: 33758262 PMCID: PMC7988013 DOI: 10.1038/s41598-021-85824-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 03/04/2021] [Indexed: 01/31/2023] Open
Abstract
The urgency of advancing green chemistry from labs and computers into the industries is well-known. The Deep Eutectic Solvents (DESs) are a promising category of novel green solvents which simultaneously have the best advantages of liquids and solids. Furthermore, they can be designed or engineered to have the characteristics desired for a given application. However, since they are rather new, there are no general models available to predict the properties of DESs without requiring other properties as input. This is particularly a setback when screening is required for feasibility studies, since a vast number of DESs are envisioned. For the first time, this study presents five group contribution (GC) and five atomic contribution (AC) models for densities, refractive indices, heat capacities, speeds of sound, and surface tensions of DESs. The models, developed using the most up-to-date databank of various types of DESs, simply decompose the molecular structure into a number of predefined groups or atoms. The resulting AARD% of densities, refractive indices, heat capacities, speeds of sound and surface tensions were, respectively, 1.44, 0.37, 3.26, 1.62, and 7.59% for the GC models, and 2.49, 1.03, 9.93, 4.52 and 7.80% for the AC models. Perhaps, even more importantly for designer solvents, is the predictive capability of the models, which was also shown to be highly reliable. Accordingly, very simple, yet highly accurate models are provided that are global for DESs and needless of any physical property information, making them useful predictive tools for a category of green solvents, which is only starting to show its potentials in green technology.
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Fan C, Liu Y, Sebbah T, Cao X. A Theoretical Study on Terpene-Based Natural Deep Eutectic Solvent: Relationship between Viscosity and Hydrogen-Bonding Interactions. GLOBAL CHALLENGES (HOBOKEN, NJ) 2021; 5:2000103. [PMID: 33728054 PMCID: PMC7933815 DOI: 10.1002/gch2.202000103] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/10/2020] [Indexed: 05/24/2023]
Abstract
The aim of this work is to shed light on the origins of unique properties by studying the relationship between viscosity and hydrogen-bonding interactions of terpene-based natural deep eutectic solvents (NADES). Five systems including camphor/formic acid, menthol/acetic acid, menthol/β-citronellol, menthol/lactic acid, and thymol/β-citronellol are prepared (molar ratio 1:1). Their structures and nature of the associated hydrogen bonds are investigated through multiple methods and theories. The viscosity of NADES is consistent with the product of hydrogen-bond number and lifetime. Through visualization of non-covalent interactions, terpene-acid-based NADES with single sites show the lowest viscosity among the studied systems because of weak and unstable hydrogen bonding. Inversely, multi-site terpene-acid-based NADES possess relatively high viscosity. Owing to the stability of hydrogen bonds in the network, the terpene-terpene-based system is in the middle level of viscosity. In-depth analysis of these hydrogen bonds shows that they can be classified as "weak to medium" and are mainly derived from electrostatic interactions. Moreover, there is an obvious connection between viscosity and hydrogen-bonding strength (integrated core-valence bifurcation index) in the networks. The discovery of intrinsic rules between viscosity and hydrogen-bonding interactions is beneficial for the design of novel low-viscosity NADES in the future.
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Affiliation(s)
- Chen Fan
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthBeijing Technology and Business UniversityNo. 11 Fucheng RoadBeijing100048China
| | - Yang Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthBeijing Technology and Business UniversityNo. 11 Fucheng RoadBeijing100048China
| | - Tarik Sebbah
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthBeijing Technology and Business UniversityNo. 11 Fucheng RoadBeijing100048China
| | - Xueli Cao
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthBeijing Technology and Business UniversityNo. 11 Fucheng RoadBeijing100048China
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27
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Elbourne A, Meftahi N, Greaves TL, McConville CF, Bryant G, Bryant SJ, Christofferson AJ. Nanostructure of a deep eutectic solvent at solid interfaces. J Colloid Interface Sci 2021; 591:38-51. [PMID: 33592524 DOI: 10.1016/j.jcis.2021.01.089] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 12/24/2022]
Abstract
HYPOTHESIS Deep eutectic solvents (DESs) are an attractive class of tunable solvents. However, their uptake for relevant applications has been limited due to a lack of detailed information on their structure-property relationships, both in the bulk and at interfaces. The lateral nanostructure of the DES-solid interfaces is likely to be more complex than previously reported and requires detailed, high-resolution investigation. EXPERIMENTS We employ a combination of high-resolution amplitude-modulated atomic force microscopy and molecular dynamics simulations to elucidate the lateral nanostructure of a DES at the solid-liquid interface. Specifically, the lateral and near-surface nanostructure of the DES choline chloride:glycerol is probed at the mica and highly-ordered pyrolytic graphite interfaces. FINDINGS The lateral nanostructure of the DES-solid interface is heterogeneous and well-ordered in both systems. At the mica interface, the DES is strongly ordered via polar interactions. The adsorbed layer has a distinct rhomboidal symmetry with a repeat spacing of ~0.9 nm comprising all DES species. At the highly ordered pyrolytic graphite interface, the adsorbed layer appears distinctly different, forming an apolor-driven row-like structure with a repeat spacing of ~0.6 nm, which largely excludes the chloride ion. The interfacial nanostructure results from a delicate balance of substrate templating, liquid-liquid interactions, species surface affinity, and packing constraints of cations, anions, and molecular components within the DES. For both systems, distinct near-surface nanostructural layering is observed, which becomes more pronounced close to the substrate. The surface nanostructures elucidated here significantly expand our understanding of DES interfacial behavior and will enhance the optimization of DES systems for surface-based applications.
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Affiliation(s)
- Aaron Elbourne
- School of Science, RMIT University, Melbourne, VIC 3000, Australia.
| | - Nastaran Meftahi
- ARC Centre of Excellence in Exciton Science, School of Science, RMIT University, Melbourne, VIC 3001, Australia
| | - Tamar L Greaves
- School of Science, RMIT University, Melbourne, VIC 3000, Australia
| | - Christopher F McConville
- School of Science, RMIT University, Melbourne, VIC 3000, Australia; Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
| | - Gary Bryant
- School of Science, RMIT University, Melbourne, VIC 3000, Australia
| | - Saffron J Bryant
- School of Science, RMIT University, Melbourne, VIC 3000, Australia.
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Malik A, Dhattarwal HS, Kashyap HK. Molecular dynamics investigation of wetting–dewetting behavior of reline DES nanodroplet at model carbon material. J Chem Phys 2020; 153:164704. [DOI: 10.1063/5.0023460] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Affiliation(s)
- Akshay Malik
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Harender S. Dhattarwal
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Hemant K. Kashyap
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Hallett JE, Hayler HJ, Perkin S. Nanolubrication in deep eutectic solvents. Phys Chem Chem Phys 2020; 22:20253-20264. [PMID: 32966447 DOI: 10.1039/d0cp03787g] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report surface force balance measurements of the normal surface force and friction between two mica surfaces separated by a nanofilm of the deep eutectic solvent ethaline. Ethaline, a 1 : 2 mixture of choline chloride and ethylene glycol, was studied under dry conditions, under ambient conditions and with added water, revealing surface structural layers and quantised frictional response highly sensitive to water content, including regions of super-lubric behaviour under dry conditions and with added water. We also report exceptionally long-ranged electrostatic repulsion far in excess of that predicted by Debye-Hückel theory for a system with such high electrolyte content, consistent with previously reported observations of "underscreening" in ionic liquid and concentrated aqueous electrolyte systems [Smith et al., J. Phys. Chem. Lett., 2016, 7(12), 2157].
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Affiliation(s)
- James E Hallett
- Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK.
| | - Hannah J Hayler
- Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK.
| | - Susan Perkin
- Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK.
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Omar KA, Sadeghi R. Novel diglycolic acid-based deep eutectic solvents and their applications as a rust remover. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113380] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Haghbakhsh R, Taherzadeh M, Duarte ARC, Raeissi S. A general model for the surface tensions of deep eutectic solvents. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112972] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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32
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Zheng C, Zhao L, Kong L, Yang J, Liu K, Li Y. Density, viscosity, and surface tension of 1,3-diaminopropane +1,3-propanediol system liquids: Influence of temperature and alkyl chain. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112868] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Susceptibility of biomembrane structure towards amphiphiles, ionic liquids, and deep eutectic solvents. ADVANCES IN BIOMEMBRANES AND LIPID SELF-ASSEMBLY 2020. [DOI: 10.1016/bs.abl.2020.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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35
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Wang Y, Chen W, Zhao Q, Jin G, Xue Z, Wang Y, Mu T. Ionicity of deep eutectic solvents by Walden plot and pulsed field gradient nuclear magnetic resonance (PFG-NMR). Phys Chem Chem Phys 2020; 22:25760-25768. [DOI: 10.1039/d0cp01431a] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The transport properties and ionicity of DESs were investigated by using Walden plot and the pulsed field gradient NMR method.
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Affiliation(s)
- Yaqing Wang
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Wenjun Chen
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Qi Zhao
- Institute of Coal Chemistry
- Chinese Academy of Science
- Taiyuan 030001
- China
| | - Guizhen Jin
- Beijing Key Laboratory of Ionic Liquids Clean Process
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Zhimin Xue
- Beijing Key Laboratory of Lignocellulosic Chemistry
- College of Materials Science and Technology
- Beijing Forestry University
- Beijing 100083
- China
| | - Yingxiong Wang
- Institute of Coal Chemistry
- Chinese Academy of Science
- Taiyuan 030001
- China
| | - Tiancheng Mu
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
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36
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Electrodeposition of Sn and Sn Composites with Carbon Materials Using Choline Chloride-Based Ionic Liquids. COATINGS 2019. [DOI: 10.3390/coatings9120798] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nano carbons, such as graphene and carbon nanotubes, show very interesting electrochemical properties and are becoming a focus of interest in many areas, including electrodeposition of carbon–metal composites for battery application. The aim of this study was to incorporate carbon materials (namely oxidized multi-walled carbon nanotubes (ox-MWCNT), pristine multi-walled carbon nanotubes (P-MWCNT), and reduced graphene oxide (rGO)) into a metallic tin matrix. Formation of the carbon–tin composite materials was achieved by electrodeposition from a choline chloride-based ionic solvent. The different structures and treatments of the carbon materials will create metallic composites with different characteristics. The electrochemical characterization of Sn and Sn composites was performed using chronoamperometry, potentiometry, electrochemical impedance, and cyclic voltammetry. The initial growth stages of Sn and Sn composites were characterized by a glassy-carbon (GC) electrode surface. Nucleation studies were carried out, and the effect of the carbon materials was characterized using the Scharifker and Hills (SH) and Scharifker and Mostany (SM) models. Through a non-linear fitting method, it was shown that the nucleation of Sn and Sn composites on a GC surface occurred through a 3D instantaneous process with growth controlled by diffusion. According to Raman and XRD analysis, carbon materials were successfully incorporated at the Sn matrix. AFM and SEM images showed that the carbon incorporation influences the coverage of the surface as well as the size and shape of the agglomerate. From the analysis of the corrosion tests, it is possible to say that Sn-composite films exhibit a comparable or slightly better corrosion performance as compared to pure Sn films.
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38
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Häckl K, Li H, Aldous IM, Tsui T, Kunz W, Abbott AP, Warr GG, Atkin R. Potential Dependence of Surfactant Adsorption at the Graphite Electrode/Deep Eutectic Solvent Interface. J Phys Chem Lett 2019; 10:5331-5337. [PMID: 31430167 DOI: 10.1021/acs.jpclett.9b01968] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Atomic force microscopy and cyclic voltammetry are used to probe how ionic surfactant adsorbed layer structure affects redox processes at deep eutectic solvent (DES)/graphite interfaces. Unlike its behavior in water, sodium dodecyl sulfate (SDS) in DESs only adsorbs as a complete layer of hemicylindrical hemimicelles far above its critical micelle concentration (CMC). Near the CMC it forms a tail-to-tail monolayer at open-circuit potential (OCP) and positive potentials, and it desorbs at negative potentials. In contrast, cetyltrimethylammonium bromide (CTAB) adsorbs as hemimicelles at low concentrations and remains adsorbed at both positive and negative potentials. The SDS horizontal monolayer has little overall effect on redox processes at the graphite interface, but hemimicelles form an effective and stable barrier. The stronger solvophobic interactions between the C16 versus C12 alkyl chains in the DES allow CTAB to self-assemble into a robust coating at low concentrations and illustrate how the structure of the DES/electrode interface and electrochemical response can be engineered by controlling surfactant structure.
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Affiliation(s)
- Katharina Häckl
- Institute of Physical and Theoretical Chemistry , University of Regensburg , Universitätsstraße 31 , D-93053 Regensburg , Germany
- School of Molecular Sciences , The University of Western Australia , 35 Stirling Highway , Perth , WA 6009 , Australia
| | - Hua Li
- School of Molecular Sciences , The University of Western Australia , 35 Stirling Highway , Perth , WA 6009 , Australia
- Centre for Microscopy, Characterisation and Analysis , The University of Western Australia , 35 Stirling Highway , Perth , WA 6009 , Australia
| | - Iain M Aldous
- Materials Centre, Department of Chemistry , University of Leicester , Leicester LE1 7RH , U.K
| | - Terrence Tsui
- School of Molecular Sciences , The University of Western Australia , 35 Stirling Highway , Perth , WA 6009 , Australia
| | - Werner Kunz
- Institute of Physical and Theoretical Chemistry , University of Regensburg , Universitätsstraße 31 , D-93053 Regensburg , Germany
| | - Andrew P Abbott
- Materials Centre, Department of Chemistry , University of Leicester , Leicester LE1 7RH , U.K
| | - Gregory G Warr
- School of Chemistry and University of Sydney Nano Institute , The University of Sydney , Camperdown , NSW 2006 , Australia
| | - Rob Atkin
- School of Molecular Sciences , The University of Western Australia , 35 Stirling Highway , Perth , WA 6009 , Australia
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Lawal IA, Lawal MM, Azeez MA, Ndungu P. Theoretical and experimental adsorption studies of phenol and crystal violet dye on carbon nanotube functionalized with deep eutectic solvent. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110895] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Naik PK, Paul S, Banerjee T. Physiochemical Properties and Molecular Dynamics Simulations of Phosphonium and Ammonium Based Deep Eutectic Solvents. J SOLUTION CHEM 2019. [DOI: 10.1007/s10953-019-00903-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Theoretical study of physicochemical properties of selected ammonium salt-based deep eutectic solvents. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Bridging the gap between two different scaling laws for structuring of liquids under geometrical confinement. Adv Colloid Interface Sci 2019; 269:270-276. [PMID: 31103817 DOI: 10.1016/j.cis.2019.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/26/2019] [Accepted: 04/28/2019] [Indexed: 11/21/2022]
Abstract
Structural forces are a phenomena obtained in liquids of one-component (e.g. for organic solvents) and two-components (colloidal dispersions), alike. So far, those two systems were discussed separately, using two different scaling laws. In this review article, an attempt is made to bridge the gap between both scaling laws by defining the scaling limit for two-component systems. Colloidal probe atomic force microscopy (CP-AFM) is used to measure structural forces in suspensions of silica nanoparticles (NPs) of three different sizes. In these two-component systems (solid NPs suspended in water), oscillatory behaviour can be obtained in the force vs. separation profiles. The wavelength λ is larger than the actual particle diameter d and rather depends on the particles' volume fraction ϕ following the inverse cubic root law λ∝ϕ-13. It is shown that the real particle diameter d can be determined by a gedankenexperiment by extrapolating the fitted wavelength λ from the structural force measurements at a specific particle concentration to a particle volume fraction ϕ of 52% - the packing factor for simple cubic packing - using the well-known inverse cubic root scaling law. This extrapolation can be interpreted as a transition from a two-component system towards a one-component-like problem. In this case, particles are in contact and the wavelength λ is equal to the particle diameter d, λ = d as for one-component systems. The determined diameters d of the different silica nanoparticles agree well with independent measurements using transmission electron microscopy (TEM), validating the used approach. The proposed method can be extended to numerous dispersions of spherical nano-sized objects, for which structural forces can be measured.
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Harifi‐Mood AR, Khorshahi H. Deep eutectic solvent as an operative media on structure‐reactivity relationships. INT J CHEM KINET 2019. [DOI: 10.1002/kin.21273] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ali Reza Harifi‐Mood
- Department of Physical ChemistryFaculty of ChemistryKharazmi University Tehran Iran
| | - Hasan Khorshahi
- Department of Physical ChemistryFaculty of ChemistryKharazmi University Tehran Iran
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Hammond OS, Li H, Westermann C, Al-Murshedi AYM, Endres F, Abbott AP, Warr GG, Edler KJ, Atkin R. Nanostructure of the deep eutectic solvent/platinum electrode interface as a function of potential and water content. NANOSCALE HORIZONS 2019; 4:158-168. [PMID: 32254151 DOI: 10.1039/c8nh00272j] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The interfacial nanostructure of the three most widely-studied Deep Eutectic Solvents (DESs), choline chloride:urea (ChCl:Urea), choline chloride:ethylene glycol (ChCl:EG), and choline chloride:glycerol (ChCl:Gly) at a Pt(111) electrode has been studied as a function of applied potential and water content up to 50 wt%. Contact mode atomic force microscope (AFM) force-distance curves reveal that for all three DESs, addition of water increases the interfacial nanostructure up to ∼40 wt%, after which it decreases. This differs starkly from ionic liquids, where addition of small amounts of water rapidly decreases the interfacial nanostructure. For the pure DESs, only one interfacial layer is measured at OCP at 0.5 nm, which increases to 3 to 6 layers extending ∼5 nm from the surface at 40 or 50 wt% water. Application of a potential of ±0.25 V to the Pt electrode for the pure DESs increases the number of near surface layers to 3. However, when water is present the applied potential attenuates the steps in the force curve, which are replaced by a short-range exponential decay. This change was most pronounced for ChCl:EG with 30 wt% or 50 wt% water, so this system was probed using cyclic voltammetry, which confirms the interfacial nanostructure is akin to a salt solution.
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Affiliation(s)
- Oliver S Hammond
- Centre for Sustainable Chemical Technologies, University of Bath, Claverton Down, Bath BA2 7AY, UK
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McDonald S, Murphy T, Imberti S, Warr GG, Atkin R. Amphiphilically Nanostructured Deep Eutectic Solvents. J Phys Chem Lett 2018; 9:3922-3927. [PMID: 29961321 DOI: 10.1021/acs.jpclett.8b01720] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Deep eutectic solvents (DESs) are neoteric liquids produced by mixing a high-melting-point salt and a molecular hydrogen-bond donor. Amphiphilic (self-assembled) liquid nanostructure, which is key for many of the useful properties of the related ionic liquid class, has not previously been experimentally demonstrated in DESs. Here we show how amphiphilically nanostructured DESs can be prepared using primary ammonium cations. The bulk structure of alkylammonium bromide (alkyl = ethyl-, propyl-, and butyl) and glycerol DESs at a 1:2 mol ratio is examined using neutron diffraction and empirical potential structure refinement fitting. Analysis reveals cation alkyl chain association, which is the signature of amphiphilic liquid nanostructure, in all systems, which becomes better defined with increasing chain length. The ability to form amphiphilically nanostructured DESs will enable the translation of ionic liquid properties associated with liquid nanostructure to DESs.
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Affiliation(s)
- Samila McDonald
- Priority Research Centre for Advanced Fluids and Interfaces, Newcastle Institute for Energy and Resources (NIER) , The University of Newcastle , Newcastle , New South Wales 2308 , Australia
| | - Thomas Murphy
- Priority Research Centre for Advanced Fluids and Interfaces, Newcastle Institute for Energy and Resources (NIER) , The University of Newcastle , Newcastle , New South Wales 2308 , Australia
| | - Silvia Imberti
- STFC , Rutherford Appleton Laboratory , Didcot OX11 0QX , United Kingdom
| | - Gregory G Warr
- School of Chemistry and Sydney Nano Institute , University of Sydney , Sydney , New South Wales 2006 , Australia
| | - Rob Atkin
- School of Molecular Sciences , The University of Western Australia , Perth , Western Australia 6009 , Australia
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Chen Z, McDonald S, FitzGerald P, Warr GG, Atkin R. Small angle neutron scattering study of the conformation of poly(ethylene oxide) dissolved in deep eutectic solvents. J Colloid Interface Sci 2017; 506:486-492. [DOI: 10.1016/j.jcis.2017.07.068] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/11/2017] [Accepted: 07/13/2017] [Indexed: 10/19/2022]
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Pal M, Yadav A, Pandey S. Aggregation of Carbocyanine Dyes in Choline Chloride-Based Deep Eutectic Solvents in the Presence of an Aqueous Base. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:9781-9792. [PMID: 28830142 DOI: 10.1021/acs.langmuir.7b01981] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Deep eutectic solvents (DESs) have shown potential as novel media to support molecular aggregation. The self-aggregation behavior of two common and popular carbocyanine dyes, 5,5',6,6'-tetrachloro-1,1'-diethyl-3,3'-di(4-sulfobutyl)-benzimidazole carbocyanine (TDBC) and 5,5'-dichloro-3,3'-di(3-sulfopropyl)-9-methyl-benzothiacarbo cyanine (DMTC), is investigated within DES-based systems under ambient conditions. Although TDBC is known to form J-aggregates in basic aqueous solution, DMTC forms H-aggregates under similar conditions. The DESs used, glyceline and reline, are composed of salt choline chloride and two vastly different H-bond donors, glycerol and urea, respectively, in 1:2 mol ratios. Both DESs in the presence of base are found to support J-aggregates of TDBC. These fluorescent J-aggregates are characterized by small Stokes' shifts and subnanosecond fluorescence lifetimes. Under similar conditions, DMTC forms fluorescent H-aggregates along with J-aggregates within the two DES-based systems. The addition of cationic surfactant cetyltrimethylammonium bromide (CTAB) below its critical micelle concentration (cmc) to a TDBC solution of aqueous base-added glyceline shows the prominent presence of J-aggregates, and increasing the CTAB concentration to above cmc results in the disruption of J-aggregates and the formation of unprecedented H-aggregates. DMTC exclusively forms H-aggregates within a CTAB solution of aqueous base-added glyceline irrespective of the surfactant concentration. Anionic surfactant, sodium dodecylsulfate (SDS), present below its cmc within aqueous base-added DESs supports J-aggregation by TDBC; for similar SDS addition, DMTC forms H-aggregates within the glyceline-based system whereas both H- and J-aggregates exist within the reline-based system. A comparison of the carbocyanine dye behavior in various aqueous base-added DES systems to that in aqueous basic media reveals contrasting aggregation tendencies and/or efficiencies. Surfactants as additives are demonstrated to control and modulate carbocyanine dye self-aggregation within DES-based media. The unique nature of DESs as alternate media toward affecting cyanine dye aggregation is highlighted.
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Affiliation(s)
- Mahi Pal
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi 110016, India
| | - Anita Yadav
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi 110016, India
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi 110016, India
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