1
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Goel N, Kushwaha A, Kumar M. Two-dimensional MXenes: recent emerging applications. RSC Adv 2022; 12:25172-25193. [PMID: 36199310 PMCID: PMC9443681 DOI: 10.1039/d2ra04354h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/25/2022] [Indexed: 11/25/2022] Open
Abstract
MXenes, are a rapidly growing family of two-dimensional materials exhibiting outstanding electronic, optical, mechanical, and thermal properties with versatile transition metal and surface chemistries. A wide range of transition metals and surface termination groups facilitate the properties of MXenes to be easily tuneable. Due to the physically strong and environmentally stable nature of MXenes, they have already had a strong presence in different fields, for instance energy storage, electrocatalysis, water purification, and chemical sensing. Some of the newly discovered applications of MXenes showed very promising results, however, they have not been covered in any review article. Therefore, in this review we comprehensively review the recent advancements of MXenes in various potential fields including energy conversion and storage, wearable flexible electronic devices, chemical detection, and biomedical engineering. We have also presented some of the most exciting prospects by combining MXenes with other materials and forming mixed dimensional high performance heterostructures based novel electronic devices.
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Affiliation(s)
- Neeraj Goel
- Department of Electronics and Communication Engineering, Netaji Subhas University of Technology Dwarka 110078 New Delhi India
| | - Aditya Kushwaha
- Department of Electronics and Communication Engineering, Netaji Subhas University of Technology Dwarka 110078 New Delhi India
| | - Mahesh Kumar
- Department of Electrical Engineering, Indian Institute of Technology Jodhpur Jodhpur 342011 India
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2
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Yao N, Chen X, Fu ZH, Zhang Q. Applying Classical, Ab Initio, and Machine-Learning Molecular Dynamics Simulations to the Liquid Electrolyte for Rechargeable Batteries. Chem Rev 2022; 122:10970-11021. [PMID: 35576674 DOI: 10.1021/acs.chemrev.1c00904] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Rechargeable batteries have become indispensable implements in our daily life and are considered a promising technology to construct sustainable energy systems in the future. The liquid electrolyte is one of the most important parts of a battery and is extremely critical in stabilizing the electrode-electrolyte interfaces and constructing safe and long-life-span batteries. Tremendous efforts have been devoted to developing new electrolyte solvents, salts, additives, and recipes, where molecular dynamics (MD) simulations play an increasingly important role in exploring electrolyte structures, physicochemical properties such as ionic conductivity, and interfacial reaction mechanisms. This review affords an overview of applying MD simulations in the study of liquid electrolytes for rechargeable batteries. First, the fundamentals and recent theoretical progress in three-class MD simulations are summarized, including classical, ab initio, and machine-learning MD simulations (section 2). Next, the application of MD simulations to the exploration of liquid electrolytes, including probing bulk and interfacial structures (section 3), deriving macroscopic properties such as ionic conductivity and dielectric constant of electrolytes (section 4), and revealing the electrode-electrolyte interfacial reaction mechanisms (section 5), are sequentially presented. Finally, a general conclusion and an insightful perspective on current challenges and future directions in applying MD simulations to liquid electrolytes are provided. Machine-learning technologies are highlighted to figure out these challenging issues facing MD simulations and electrolyte research and promote the rational design of advanced electrolytes for next-generation rechargeable batteries.
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Affiliation(s)
- Nan Yao
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xiang Chen
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhong-Heng Fu
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Qiang Zhang
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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3
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Montes-Campos H, Rivera-Pousa A, Méndez-Morales T. Density functional theory of alkali metals at the IL/graphene electrochemical interface. J Chem Phys 2022; 156:014706. [PMID: 34998333 DOI: 10.1063/5.0077449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The mechanism of charge transfer between metal ions and graphene in the presence of an ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate) is investigated by means of density functional theory calculations. For that purpose, two different comparisons are established: (i) the behavior of Li+ and K+ when adsorbed onto the basal plane of graphene and (ii) the differences between Li+ approaching the carbon surface from the basal plane and being intercalated through the edge plane of trilayer graphene. In the first case, it is found that the metal ions must overcome high energy barriers due to their interaction with the ionic liquid before reaching an equilibrium position close to the interface. In addition, no significant charge transfer between any of the metals and graphene takes place until very close energetically unfavorable distances. The second configuration shows that Li+ has no equilibrium position in the proximity of the interface but instead has an equilibrium position when it is inside the electrode for which it has to cross an energy barrier. In this case, the formation of a LiC12 complex is observed since the charge transfer at the equilibrium distance is achieved to a considerable extent. Thus, the interfacial charge transfer resistance on the electrode in energy devices based on ionic liquids clearly depends not only on the binding of the ionic liquid to the metal cations and their ability to form a dense solvation shell around them but also on the surface topography and its effect on the ion packing on the surface.
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Affiliation(s)
- H Montes-Campos
- Grupo de Nanomateriais, Fotónica e Materia Branda, Departamento de Física de Partículas, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - A Rivera-Pousa
- Grupo de Nanomateriais, Fotónica e Materia Branda, Departamento de Física de Partículas, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - T Méndez-Morales
- Grupo de Nanomateriais, Fotónica e Materia Branda, Departamento de Física de Partículas, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
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4
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Sensitive electrocatalytic determination of p-phenylenediamine using bimetallic nanocomposite of Cu-Ag nanoalloy and ionic liquid-graphene oxide. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Wang YL, Li B, Sarman S, Mocci F, Lu ZY, Yuan J, Laaksonen A, Fayer MD. Microstructural and Dynamical Heterogeneities in Ionic Liquids. Chem Rev 2020; 120:5798-5877. [PMID: 32292036 PMCID: PMC7349628 DOI: 10.1021/acs.chemrev.9b00693] [Citation(s) in RCA: 192] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Indexed: 12/11/2022]
Abstract
Ionic liquids (ILs) are a special category of molten salts solely composed of ions with varied molecular symmetry and charge delocalization. The versatility in combining varied cation-anion moieties and in functionalizing ions with different atoms and molecular groups contributes to their peculiar interactions ranging from weak isotropic associations to strong, specific, and anisotropic forces. A delicate interplay among intra- and intermolecular interactions facilitates the formation of heterogeneous microstructures and liquid morphologies, which further contributes to their striking dynamical properties. Microstructural and dynamical heterogeneities of ILs lead to their multifaceted properties described by an inherent designer feature, which makes ILs important candidates for novel solvents, electrolytes, and functional materials in academia and industrial applications. Due to a massive number of combinations of ion pairs with ion species having distinct molecular structures and IL mixtures containing varied molecular solvents, a comprehensive understanding of their hierarchical structural and dynamical quantities is of great significance for a rational selection of ILs with appropriate properties and thereafter advancing their macroscopic functionalities in applications. In this review, we comprehensively trace recent advances in understanding delicate interplay of strong and weak interactions that underpin their complex phase behaviors with a particular emphasis on understanding heterogeneous microstructures and dynamics of ILs in bulk liquids, in mixtures with cosolvents, and in interfacial regions.
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Affiliation(s)
- Yong-Lei Wang
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Bin Li
- School
of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
| | - Sten Sarman
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Francesca Mocci
- Department
of Chemical and Geological Sciences, University
of Cagliari, I-09042 Monserrato, Italy
| | - Zhong-Yuan Lu
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, Changchun 130021, P. R. China
| | - Jiayin Yuan
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Aatto Laaksonen
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
- State
Key Laboratory of Materials-Oriented and Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
- Centre of
Advanced Research in Bionanoconjugates and Biopolymers, Petru Poni Institute of Macromolecular Chemistry Aleea Grigore Ghica-Voda, 41A, 700487 Iasi, Romania
- Department
of Engineering Sciences and Mathematics, Division of Energy Science, Luleå University of Technology, SE-97187 Luleå, Sweden
| | - Michael D. Fayer
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
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6
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Kilymis D, Bartók AP, Pickard CJ, Forse AC, Merlet C. Efficient prediction of nucleus independent chemical shifts for polycyclic aromatic hydrocarbons. Phys Chem Chem Phys 2020; 22:13746-13755. [PMID: 32537616 DOI: 10.1039/d0cp01705a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Nuclear Magnetic Resonance (NMR) is one of the most powerful experimental techniques to characterize the structure of molecules and confined liquids. Nevertheless, the complexity of the systems under investigation usually requires complementary computational studies to interpret the NMR results. In this work we focus on polycyclic aromatic hydrocarbons (PAHs), an important class of organic molecules which have been commonly used as simple analogues for the spectroscopic properties of more complex systems, such as porous disordered carbons. We use Density Functional Theory (DFT) to calculate 13C chemical shifts and Nucleus Independent Chemical Shifts (NICS) for 34 PAHs. The results show a clear molecular size dependence of the two quantities, as well as the convergence of the 13C NMR shifts towards the values observed for graphene. We then present two computationally cheap models for the prediction of NICS in simple PAHs. We show that while a simple dipolar model fails to produce accurate values, a perturbative tight-binding approach can be successfully applied for the prediction of NICS in this series of molecules, including some non-planar ones containing 5- and 7-membered rings. This model, one to two orders of magnitude faster than DFT calculations, is very promising and can be further refined in order to study more complex systems.
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Affiliation(s)
- Dimitrios Kilymis
- CIRIMAT, Université de Toulouse, CNRS, Université Toulouse 3 - Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse cedex 9, France. and Réseau sur le Stockage Électrochimique de l'Énergie (RS2E), Fédération de Recherche CNRS 3459, HUB de l'Énergie, Rue Baudelocque, 80039 Amiens, France
| | - Albert P Bartók
- Warwick Centre for Predictive Modelling, Department of Physics and School of Engineering, University of Warwick, Coventry, CV4 7AL, UK and Rutherford Appleton Laboratory, Scientific Computing Department, Science and Technology Facilities Council, Didcot, OX11 0QX, UK
| | - Chris J Pickard
- Department of Materials Science and Metallurgy, University of Cambridge, UK and Advanced Institute for Materials Research, Tohoku University, Aoba, Sendai 980-8577, Japan
| | - Alexander C Forse
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK and Department of Chemistry, Department of Chemical and Biomolecular Engineering, and Berkeley Energy and Climate Institute, University of California, Berkeley, CA94720, USA
| | - Céline Merlet
- CIRIMAT, Université de Toulouse, CNRS, Université Toulouse 3 - Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse cedex 9, France. and Réseau sur le Stockage Électrochimique de l'Énergie (RS2E), Fédération de Recherche CNRS 3459, HUB de l'Énergie, Rue Baudelocque, 80039 Amiens, France
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7
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Sharma S, Dhattarwal HS, Kashyap HK. Molecular dynamics investigation of electrostatic properties of pyrrolidinium cation based ionic liquids near electrified carbon electrodes. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111269] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Montes-Campos H, Manuel Otero-Mato J, Carlos Longo R, Cabeza O, Javier Gallego L, Miguel Varela L. Mixtures of lithium salts and ionic liquids at defected graphene walls. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Verma A, Prasad NE, Srivastava J, Saha S. Probing the Heterogeneity of Ionic Liquids in Solution through Phenol-Water Phase Behavior. ChemistrySelect 2019. [DOI: 10.1002/slct.201803114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Abhineet Verma
- Dept. of Chemistry; Institute of Science; Banaras Hindu University; Varanasi 221005 India
| | - Namburi Eswara Prasad
- Defence Materials and Stores Research and Development Establishment (DMSRDE); Kanpur India
| | - Jyoti Srivastava
- Defence Materials and Stores Research and Development Establishment (DMSRDE); Kanpur India
| | - Satyen Saha
- Dept. of Chemistry; Institute of Science; Banaras Hindu University; Varanasi 221005 India
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10
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Pang J, Mendes RG, Bachmatiuk A, Zhao L, Ta HQ, Gemming T, Liu H, Liu Z, Rummeli MH. Applications of 2D MXenes in energy conversion and storage systems. Chem Soc Rev 2019; 48:72-133. [DOI: 10.1039/c8cs00324f] [Citation(s) in RCA: 978] [Impact Index Per Article: 195.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This article provides a comprehensive review of MXene materials and their energy-related applications.
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Affiliation(s)
- Jinbo Pang
- The Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden)
- Dresden
- Germany
- Institute for Advanced Interdisciplinary Research (iAIR)
- University of Jinan
| | - Rafael G. Mendes
- The Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden)
- Dresden
- Germany
- Soochow Institute for Energy and Materials InnovationS (SIEMIS)
- Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province
| | - Alicja Bachmatiuk
- The Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden)
- Dresden
- Germany
- Soochow Institute for Energy and Materials InnovationS (SIEMIS)
- Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province
| | - Liang Zhao
- Soochow Institute for Energy and Materials InnovationS (SIEMIS)
- Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province
- School of Energy
- Soochow University
- Suzhou
| | - Huy Q. Ta
- Soochow Institute for Energy and Materials InnovationS (SIEMIS)
- Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province
- School of Energy
- Soochow University
- Suzhou
| | - Thomas Gemming
- The Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden)
- Dresden
- Germany
| | - Hong Liu
- Institute for Advanced Interdisciplinary Research (iAIR)
- University of Jinan
- Jinan 250022
- China
- State Key Laboratory of Crystal Materials
| | - Zhongfan Liu
- Soochow Institute for Energy and Materials InnovationS (SIEMIS)
- Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province
- School of Energy
- Soochow University
- Suzhou
| | - Mark H. Rummeli
- The Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden)
- Dresden
- Germany
- Soochow Institute for Energy and Materials InnovationS (SIEMIS)
- Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province
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11
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NaRIBaS—A Scripting Framework for Computational Modeling of Nanomaterials and Room Temperature Ionic Liquids in Bulk and Slab. COMPUTATION 2018. [DOI: 10.3390/computation6040057] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Computational modeling is more and more often used in studies of novel ionic liquids. The inevitable side-effect is the growing number of similar computations that require automation. This article introduces NaRIBaS (Nanomaterials and Room Temperature Ionic Liquids in Bulk and Slab)—a scripting framework that combines bash scripts with computational codes to ease modeling of nanomaterials and ionic liquids in bulk and slab. NaRIBaS helps to organize and document all input and output data, thus, improving the reproducibility of computations. Three examples are given to illustrate the NaRIBaS workflows for density functional theory (DFT) calculations of ionic pairs, molecular dynamics (MD) simulations of bulk ionic liquids (ILs), and MD simulations of ILs at an interface.
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12
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Yu Z, Fang C, Huang J, Sumpter BG, Qiao R. Solvate Ionic Liquids at Electrified Interfaces. ACS APPLIED MATERIALS & INTERFACES 2018; 10:32151-32161. [PMID: 30156822 DOI: 10.1021/acsami.8b10387] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Solvate ionic liquids (SILs) are a promising electrolyte for Li-ion batteries; thus, their behavior at electrified interfaces is crucial for the operation of these batteries. We report molecular dynamics simulation results for a prototypical SIL of lithium triglyme bis(trifluoromethanesulfonyl)imide ([Li(G3)][TFSI]) sandwiched between electrified surfaces. At negatively charged as well as neutral electrodes, the electrolyte largely maintains the characteristics of SILs in terms of the interfacial Li+ ions' coordination by a similar number of oxygen atoms on G3 ligands as the bulk Li+ ions. The persistence of the complex ions is attributed to the 1:1 Li-G3 ratio in bulk SILs and the fact that G3 molecules readily adapt to the interfacial environment by aligning themselves with the surface to ensure good solvation of the interfacial Li+ ions. Nevertheless, the interfacial Li+ ions also display changes of solvation from that in bulk SIL by deviating from the molecular plane formed by the oxygen atoms on G3 ligands as electrodes become more negatively charged. Using density functional theory along with natural bond orbital calculations, we examine the effects of such structural distortion on the properties of the complex cation. Both the frontier orbital energies of the complex cation and the donor-acceptor interactions between Li+ ions and G3 ligands are found to be dependent on the deviation of Li+ ions from the molecular plane of the G3 ligands, which suggests that the electrochemical reduction of Li+ ions should be facilitated by the structural distortion. These results bear important implications for the nanostructures and properties of SILs near electrified interfaces during actual operations of Li-ion batteries and serve to provide guidance toward the rational design of new SIL electrolytes.
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Affiliation(s)
- Zhou Yu
- Department of Mechanical Engineering , Virginia Tech , Blacksburg , Virginia 24061 , United States
| | - Chao Fang
- Department of Mechanical Engineering , Virginia Tech , Blacksburg , Virginia 24061 , United States
| | - Jingsong Huang
- Center for Nanophase Materials Sciences and Computational Sciences & Engineering Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
| | - Bobby G Sumpter
- Center for Nanophase Materials Sciences and Computational Sciences & Engineering Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
| | - Rui Qiao
- Department of Mechanical Engineering , Virginia Tech , Blacksburg , Virginia 24061 , United States
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13
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Gómez-González V, Docampo-Álvarez B, Montes-Campos H, Otero JC, Lago EL, Cabeza O, Gallego LJ, Varela LM. Solvation of Al3+ cations in bulk and confined protic ionic liquids: a computational study. Phys Chem Chem Phys 2018; 20:19071-19081. [DOI: 10.1039/c8cp02933d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanostructured solvation of Al3+ in an EAN ionic liquid, forming octahedral complexes with nitrate anions.
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Affiliation(s)
- Víctor Gómez-González
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas y Departamento de Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Borja Docampo-Álvarez
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas y Departamento de Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Hadrián Montes-Campos
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas y Departamento de Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Juan Carlos Otero
- Universidad de Málaga
- Andalucía Tech
- Facultad de Ciencias
- Departamento de Química Física
- Unidad Asociada CSIC
| | - Elena López Lago
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas y Departamento de Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Oscar Cabeza
- Departamento de Física y Ciencias de la Tierra
- Facultade de Ciencias
- Universidade da Coruña
- Campus A Zapateira s/n
- E-15071 A Coruña
| | - Luis J. Gallego
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas y Departamento de Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Luis M. Varela
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas y Departamento de Física Aplicada
- Facultade de Física
- Universidade de Santiago de Compostela
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14
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Gómez-González V, Docampo-Álvarez B, Otero-Mato JM, Cabeza O, Gallego LJ, Varela LM. Molecular dynamics simulations of the structure of mixtures of protic ionic liquids and monovalent and divalent salts at the electrochemical interface. Phys Chem Chem Phys 2018; 20:12767-12776. [DOI: 10.1039/c8cp01180j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen bonded protic ionic liquids improve the transport of electrochemically relevant cations to charged walls relative to aprotic ones.
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Affiliation(s)
- Víctor Gómez-González
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Borja Docampo-Álvarez
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
| | - J. Manuel Otero-Mato
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
| | - Oscar Cabeza
- Departamento de Física y Ciencias de la Tierra
- Facultade de Ciencias
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - Luis J. Gallego
- Departamento de Física y Ciencias de la Tierra
- Facultade de Ciencias
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - Luis M. Varela
- Grupo de Nanomateriales
- Fotónica y Materia Blanda
- Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
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15
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Kaur S, Sharma S, Kashyap HK. Bulk and interfacial structures of reline deep eutectic solvent: A molecular dynamics study. J Chem Phys 2017; 147:194507. [DOI: 10.1063/1.4996644] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Supreet Kaur
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shobha Sharma
- 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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16
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Ionic Liquids for Supercapacitor Applications. Top Curr Chem (Cham) 2017; 375:63. [PMID: 28560657 DOI: 10.1007/s41061-017-0150-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 05/16/2017] [Indexed: 12/12/2022]
Abstract
Supercapacitors are electrochemical energy storage devices in which the charge is accumulated through the adsorption of ions from an electrolyte on the surface of the electrode. Because of their large ionic concentrations, ionic liquids have widely been investigated for such applications. The main properties that have to be optimized are the electrochemical window, the electrical conductivity, and the interfacial capacitances. Ionic liquids allow a significant improvement of the former, but they suffer from their high viscosity. In this review, I will discuss the advantages and the inconvenience of using ionic liquids in supercapacitors. Some innovative approaches using mixtures of ionic liquids or redox-active ions will also be critically addressed.
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17
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Electrochemical performances of a new solid composite polymer electrolyte based on hyperbranched star polymer and ionic liquid for lithium-ion batteries. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3582-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Coles SW, Mishin M, Perkin S, Fedorov MV, Ivaništšev VB. The nanostructure of a lithium glyme solvate ionic liquid at electrified interfaces. Phys Chem Chem Phys 2017; 19:11004-11010. [DOI: 10.1039/c7cp00837f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lithium glymes adopt a distinct nanostructure at the negative electrode, unlike that observed with conventional ionic liquids.
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Affiliation(s)
| | - Maksim Mishin
- Department of Physics
- Scottish Universities Physics Alliance (SUPA)
- Strathclyde University
- John Anderson Building
- Glasgow G4 0NG
| | - Susan Perkin
- Department of Chemistry
- University of Oxford
- Oxford OX1 3QZ
- UK
| | - Maxim V. Fedorov
- Department of Physics
- Scottish Universities Physics Alliance (SUPA)
- Strathclyde University
- John Anderson Building
- Glasgow G4 0NG
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19
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Begić S, Jónsson E, Chen F, Forsyth M. Molecular dynamics simulations of pyrrolidinium and imidazolium ionic liquids at graphene interfaces. Phys Chem Chem Phys 2017; 19:30010-30020. [DOI: 10.1039/c7cp03389c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MD simulations of ionic liquids support AFM data and point towards a likely relationship between interfacial structures and electrochemical performance.
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Affiliation(s)
- Srđan Begić
- ARC Centre of Excellence for Electromaterials Science and Institute for Frontier Materials (IFM)
- Burwood
- Australia
| | - Erlendur Jónsson
- ARC Centre of Excellence for Electromaterials Science and Institute for Frontier Materials (IFM)
- Burwood
- Australia
| | - Fangfang Chen
- ARC Centre of Excellence for Electromaterials Science and Institute for Frontier Materials (IFM)
- Burwood
- Australia
| | - Maria Forsyth
- ARC Centre of Excellence for Electromaterials Science and Institute for Frontier Materials (IFM)
- Burwood
- Australia
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20
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Gómez-González V, Docampo-Álvarez B, Méndez-Morales T, Cabeza O, Ivaništšev VB, Fedorov MV, Gallego LJ, Varela LM. Molecular dynamics simulation of the structure and interfacial free energy barriers of mixtures of ionic liquids and divalent salts near a graphene wall. Phys Chem Chem Phys 2017; 19:846-853. [DOI: 10.1039/c6cp07002g] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A molecular dynamics study of graphene-confined mixtures of 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIm][BF4]) with Mg[BF4]2 is reported.
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Affiliation(s)
- Víctor Gómez-González
- Grupo de Nanomateriales
- Fotónica y Materia Blanda. Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
| | - Borja Docampo-Álvarez
- Grupo de Nanomateriales
- Fotónica y Materia Blanda. Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
| | - Trinidad Méndez-Morales
- Grupo de Nanomateriales
- Fotónica y Materia Blanda. Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
| | - Oscar Cabeza
- Departamento de Física
- Facultade de Ciencias
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | | | - Maxim V. Fedorov
- Skolkovo Institute of Science and Technology
- Moscow 143026
- Russian Federation
- Department of Physics
- Scottish University Physics Alliance (SUPA)
| | - Luis J. Gallego
- Grupo de Nanomateriales
- Fotónica y Materia Blanda. Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
| | - Luis M. Varela
- Grupo de Nanomateriales
- Fotónica y Materia Blanda. Departamento de Física de Partículas
- Facultade de Física
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
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21
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Docampo-Álvarez B, Gómez-González V, Montes-Campos H, Otero-Mato JM, Méndez-Morales T, Cabeza O, Gallego LJ, Lynden-Bell RM, Ivaništšev VB, Fedorov MV, Varela LM. Molecular dynamics simulation of the behaviour of water in nano-confined ionic liquid-water mixtures. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:464001. [PMID: 27623714 DOI: 10.1088/0953-8984/28/46/464001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
This work describes the behaviour of water molecules in 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid under nanoconfinement, between graphene sheets. By means of molecular dynamics simulations, the adsorption of water molecules at the graphene surface is studied. A depletion of water molecules in the vicinity of the neutral and negatively charged graphene surfaces, and their adsorption at the positively charged surface are observed in line with the preferential hydration of the ionic liquid anions. The findings are appropriately described using a two-level statistical model. The confinement effect on the structure and dynamics of the mixtures is thoroughly analyzed using the density and the potential of mean force profiles, as well as by the vibrational densities of the states of water molecules near the graphene surface. The orientation of water molecules and the water-induced structural transitions in the layer closest to the graphene surface are also discussed.
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Affiliation(s)
- B Docampo-Álvarez
- Departamento de Física da Materia Condensada, Facultade de Física, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
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22
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Haskins JB, Wu JJ, Lawson JW. Computational and Experimental Study of Li-Doped Ionic Liquids at Electrified Interfaces. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2016; 120:11993-12011. [PMID: 33005284 PMCID: PMC7526643 DOI: 10.1021/acs.jpcc.6b02449] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We evaluate the influence of Li-salt doping on the dynamics, capacitance, and structure of three ionic liquid electrolytes, [pyr14][TFSI], [pyr13][FSI], and [EMIM][BF4], using molecular dynamics and polarizable force fields. In this respect, our focus is on the properties of the electric double layer (EDL) formed by the electrolytes at the electrode surface as a function of surface potential (Ψ). The rates of EDL formation are found to be on the order of hundreds of picoseconds and only slightly influenced by the addition of Li-salt. The EDLs of three electrolytes are shown to have different energy storage capacities, which we relate to the EDL formation free energy. The differential capacitance obtained from our computations exhibits asymmetry about the potential of zero charge and is consistent with the camel-like profiles noted from mean field theories and experiments on metallic electrodes. The introduction of Li-salt reduces the noted asymmetry in the differential capacitance profile. Complementary experimental capacitance measurements have been made on our three electrolytes in their neat forms and with Li-salt. The measurements, performed on glassy carbon electrodes, produce U-like profiles, and Li-salt doping is shown to strongly affect capacitance at high magnitudes of Ψ. Differences in the theoretical and experimental shapes and magnitudes of capacitance are rationalized in terms of the electrode surface and pseudocapacitive effects. In both neat and Li-doped liquids, the details of the computational capacitance profile are well described by Ψ-induced changes in the density and molecular orientation of ions in the molecular layer closest to the electrode. Our results suggest that the addition of Li+ induces disorder in the EDL, which originates from the strong binding of anions to Li+. An in-depth analysis of the distribution of Li+ in the EDL reveals that it does not readily enter the molecular layer at the electrode surface, preferring instead to be localized farther away from the surface in the second molecular layer. This behavior is validated through an analysis of the free energy of Li+ solvation as a function of distance from the electrode. Free energy wells are found to coincide with localized concentrations of Li+, the depths of which increase with Ψ and suggest a source of impedance for Li+ to reach the electrode. Finally, we make predictions of the specific energy at ideal graphite utilizing the computed capacitance and previously derived electrochemical windows of the liquids.
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Affiliation(s)
- Justin B Haskins
- AMA Inc., Thermal Materials Protection Branch, NASA Ames Research Center, Moffett Field, California 94035, USA
| | - James J Wu
- Photovoltaic and Electrochemical Systems Branch, NASA Glenn Research Center, Cleveland, Ohio 44135, USA
| | - John W Lawson
- Thermal Materials Protection Branch, NASA Ames Research Center, Moffett Field, California 94035, USA
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23
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Sadeghi Moghadam B, Razmkhah M, Hamed Mosavian MT, Moosavi F. Molecular dynamics simulation of amino acid ionic liquids near a graphene electrode: effects of alkyl side-chain length. Phys Chem Chem Phys 2016; 18:33053-33067. [DOI: 10.1039/c6cp06659c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The nanoscopic structure of amino acid ionic liquids (AAILs) as biodegradable electrolytes near a neutral graphene surface was studied by molecular dynamics (MD) simulation.
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Affiliation(s)
| | - Mohammad Razmkhah
- Department of Chemical Engineering
- Ferdowsi University of Mashhad
- Mashhad 9177948944
- Iran
| | | | - Fatemeh Moosavi
- Department of Chemistry
- Ferdowsi University of Mashhad
- Mashhad 9177948974
- Iran
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24
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Begić S, Li H, Atkin R, Hollenkamp AF, Howlett PC. A comparative AFM study of the interfacial nanostructure in imidazolium or pyrrolidinium ionic liquid electrolytes for zinc electrochemical systems. Phys Chem Chem Phys 2016; 18:29337-29347. [DOI: 10.1039/c6cp04299f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
AFM measurements show that the electrochemical performance of zinc based ionic liquid electrolytes is controlled by ion arrangements at the electrode surface.
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Affiliation(s)
- Srđan Begić
- ARC Centre of Excellence for Electromaterials Science (ACES)
- Institute for Frontier Materials (IFM)
- Deakin University Burwood Campus
- Burwood
- Australia
| | - Hua Li
- Priority Research Centre for Advanced Fluids and Interfaces
- The University of Newcastle
- Callaghan
- Australia
| | - Rob Atkin
- Priority Research Centre for Advanced Fluids and Interfaces
- The University of Newcastle
- Callaghan
- Australia
| | | | - Patrick C. Howlett
- ARC Centre of Excellence for Electromaterials Science (ACES)
- Institute for Frontier Materials (IFM)
- Deakin University Burwood Campus
- Burwood
- Australia
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