1
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Wang N, Maginn EJ. GAFF-Based Polarizable Force Field Development and Validation for Ionic Liquids. J Phys Chem B 2024; 128:871-881. [PMID: 38227791 DOI: 10.1021/acs.jpcb.3c07238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Ionic liquids (ILs) have been used in many applications, including gas separations, electrochemistry, lubrication, and catalysis. Understanding how the different properties of ILs are related to their chemical structure and composition is crucial for these applications. Experimental investigations often provide limited insights and can be tedious in exploring a range of state points. Therefore, molecular simulations have emerged as a powerful tool that not only offers a microscopic perspective but also enables rapid screening and prediction of physical properties. The accuracy of these predictions, however, depends on the quality of the intermolecular potentials (force fields) used. The widely used classical fixed charge models, such as GAFF, OPLS, and CL&P, are popular due to their simplicity and computational efficiency. However, it has been shown that the use of integer charges with these classical models leads to sluggish dynamics. The use of scaled charge models can improve the dynamics, but these mean-field approaches are unable to account for polarization effects explicitly. Several different approaches have been proposed to include polarizability in IL force fields. In this work, we follow the protocol of the CL&Pol model to develop a Drude oscillator model based on the GAFF force field (Goloviznina, K., et al. J. Chem. Theory Comput. 2019, 15, 5858). We compare the performance of the model for eight imidazolium- and pyrrolidinium-based ILs against that of other models. We find that the new model provides reasonable estimations of density, self-diffusivity, and structural properties for these ILs and suggests a relatively simple way of extending the general GAFF model to more ILs.
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Affiliation(s)
- Ning Wang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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2
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Ilic S, Counihan MJ, Lavan SN, Yang Y, Jiang Y, Dhakal D, Mars J, Antonio EN, Kitsu Iglesias L, Fister TT, Zhang Y, Maginn EJ, Toney MF, Klie RF, Connell JG, Tepavcevic S. Effect of Antisolvent Additives in Aqueous Zinc Sulfate Electrolytes for Zinc Metal Anodes: The Case of Acetonitrile. ACS Energy Lett 2024; 9:201-208. [PMID: 38230374 PMCID: PMC10789094 DOI: 10.1021/acsenergylett.3c02504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 12/01/2023] [Indexed: 01/18/2024]
Abstract
Aqueous zinc-ion batteries (ZIBs) employing zinc metal anodes are gaining traction as batteries for moderate to long duration energy storage at scale. However, corrosion of the zinc metal anode through reaction with water limits battery efficiency. Much research in the past few years has focused on additives that decrease hydrogen evolution, but the precise mechanisms by which this takes place are often understudied and remain unclear. In this work, we study the role of an acetonitrile antisolvent additive in improving the performance of aqueous ZnSO4 electrolytes using experimental and computational techniques. We demonstrate that acetonitrile actively modifies the interfacial chemistry during Zn metal plating, which results in improved performance of acetonitrile-containing electrolytes. Collectively, this work demonstrates the effectiveness of solvent additive systems in battery performance and durability and provides a new framework for future efforts to optimize ion transport and performance in ZIBs.
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Affiliation(s)
- Stefan Ilic
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Material
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Michael J. Counihan
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Material
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Sydney N. Lavan
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Material
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yingjie Yang
- Department
of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Yinke Jiang
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
| | - Diwash Dhakal
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Department
of Materials Science and Engineering, University
of Washington, Seattle, Washington 98195, United States
| | - Julian Mars
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Department
of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Emma N. Antonio
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Department
of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Luis Kitsu Iglesias
- Department
of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Timothy T. Fister
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Chemical
Sciences and Engineering Division, Argonne
National Laboratory, Lemont, Illinois 60439, United States
| | - Yong Zhang
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
| | - Edward J. Maginn
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
| | - Michael F. Toney
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Department
of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Robert F. Klie
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Department
of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Justin G. Connell
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Material
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Sanja Tepavcevic
- Joint
Center for Energy Storage Research, Argonne
National Laboratory, Lemont, Illinois 60439, United States
- Material
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
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3
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Abranches DO, Maginn EJ, Colón YJ. Boosting Graph Neural Networks with Molecular Mechanics: A Case Study of Sigma Profile Prediction. J Chem Theory Comput 2023; 19:9318-9328. [PMID: 38063153 DOI: 10.1021/acs.jctc.3c01003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Sigma profiles are quantum-chemistry-derived molecular descriptors that encode the polarity of molecules. They have shown great performance when used as a feature in machine learning applications. To accelerate the development of these models and the construction of large sigma profile databases, this work proposes a graph convolutional network (GCN) architecture to predict sigma profiles from molecule structures. To do so, the usage of molecular mechanics (force field atom types) is explored as a computationally inexpensive node-level featurization technique to encode the local and global chemical environments of atoms in molecules. The GCN models developed in this work accurately predict the sigma profiles of assorted organic and inorganic compounds. The best GCN model here reported, obtained using Merck molecular force field (MMFF) atom types, displayed training and testing set coefficients of determination of 0.98 and 0.96, respectively, which are superior to previous methodologies reported in the literature. This performance boost is shown to be due to both the usage of a convolutional architecture and node-level features based on force field atom types. Finally, to demonstrate their practical applicability, we used GCN-predicted sigma profiles as the input to machine learning models previously developed in the literature that predict boiling temperatures and aqueous solubilities. Using the predicted sigma profiles as input, these models were able to compute both physicochemical properties using significantly less computational resources and displayed only a slight decrease in performance when compared with sigma profiles obtained from quantum chemistry methods.
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Affiliation(s)
- Dinis O Abranches
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yamil J Colón
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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Zhang Y, Carino E, Hahn NT, Becknell N, Mars J, Han KS, Mueller KT, Toney M, Maginn EJ, Tepavcevic S. Understanding the Surprising Ionic Conductivity Maximum in Zn(TFSI) 2 Water/Acetonitrile Mixture Electrolytes. J Phys Chem Lett 2023; 14:11393-11399. [PMID: 38079154 DOI: 10.1021/acs.jpclett.3c03048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Aqueous electrolytes composed of 0.1 M zinc bis(trifluoromethylsulfonyl)imide (Zn(TFSI)2) and acetonitrile (ACN) were studied using combined experimental and simulation techniques. The electrolyte was found to be electrochemically stable when the ACN V% is higher than 74.4. In addition, it was found that the ionic conductivity of the mixed solvent electrolytes changes as a function of ACN composition, and a maximum was observed at 91.7 V% of ACN although the salt concentration is the same. This behavior was qualitatively reproduced by molecular dynamics (MD) simulations. Detailed analyses based on experiments and MD simulations show that at high ACN composition the water network existing in the high water composition solutions breaks. As a result, the screening effect of the solvent weakens and the correlation among ions increases, which causes a decrease in ionic conductivity at high ACN V%. This study provides a fundamental understanding of this complex mixed solvent electrolyte system.
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Affiliation(s)
- Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Emily Carino
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Nathan T Hahn
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Material, Physical and Chemical Sciences Center, Sandia National Laboratories, Albuquerque, New Mexico 87123, United States
| | - Nigel Becknell
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Julian Mars
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Kee Sung Han
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Karl T Mueller
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Michael Toney
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Sanja Tepavcevic
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
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Kim S, Conrad JA, Tow GM, Maginn EJ, Boatz JA, Gordon MS. Intermolecular interactions in clusters of ethylammonium nitrate and 1-amino-1,2,3-triazole. Phys Chem Chem Phys 2023; 25:30428-30457. [PMID: 37917371 DOI: 10.1039/d3cp02407e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
The intermolecular interaction energies, including hydrogen bonds (H-bonds), of clusters of the ionic liquid ethylammonium nitrate (EAN) and 1-amino-1,2,3-triazole (1-AT) based deep eutectic propellants (DeEP) are examined. 1-AT is introduced as a neutral hydrogen bond donor (HBD) to EAN in order to form a eutectic mixture. The effective fragment potential (EFP) is used to examine the bonding interactions in the DeEP clusters. The resolution of the Identity (RI) approximated second order Møller-Plesset perturbation theory (RI-MP2) and coupled cluster theory (RI-CCSD(T)) are used to validate the EFP results. The EFP method predicts that there are significant polarization and charge transfer effects in the EAN:1-AT complexes, along with Coulombic, dispersion and exchange repulsion interactions. The EFP interaction energies are in good agreement with the RI-MP2 and RI-CCSD(T) results. The quasi-atomic orbital (QUAO) bonding and kinetic bond order (KBO) analyses are additionally used to develop a conceptual and semi-quantitative understanding of the H-bonding interactions as a function of the size of the system. The QUAO and KBO analyses suggest that the H-bonds in the examined clusters follow the characteristic hydrogen bonding three-center four electron interactions. The strongest H-bonding interactions between the (EAN)1:(1-AT)n and (EAN)2:(1-AT)n (n = 1-5) complexes are observed internally within EAN; that is, between the ethylammonium cation [EA]+ and the nitrate anion ([NO3]-). The weakest H-bonding interactions occur between [NO3]- and 1-AT. Consequently, the average strengths of the H-bonds within a given (EAN)x:(1-AT)n complex decrease as more 1-AT molecules are introduced into the EAN monomer and EAN dimer. The QUAO bonding analysis suggests that 1-AT in (EAN)x:(1-AT)n can act as both a HBD and a hydrogen bond acceptor simultaneously. It is observed that two 1-AT molecules can form H-bonds to each other. Although the KBOs that correspond to H-bonding interactions in [EA]+:1-AT, [NO3]-:1-AT and between two 1-AT molecules are weaker than the H-bonds in EAN, those weak H-bond networks with 1-AT could be important to form a stable DeEP.
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Affiliation(s)
- Shinae Kim
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, IA 50011, USA.
- Combustion Research Facility, Sandia National Laboratories, Livermore, California 94550, USA
| | - Justin A Conrad
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, IA 50011, USA.
| | - Garrett M Tow
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Edward J Maginn
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Jerry A Boatz
- Aerospace Systems Directorate, Air Force Research Laboratory, Edwards Air Force Base, California 93524, USA
| | - Mark S Gordon
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, IA 50011, USA.
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6
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Correa GB, Zhang Y, Abreu CRA, Tavares FW, Maginn EJ. Revisiting the pseudo-supercritical path method: An improved formulation for the alchemical calculation of solid-liquid coexistence. J Chem Phys 2023; 159:104105. [PMID: 37694744 DOI: 10.1063/5.0163564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 08/16/2023] [Indexed: 09/12/2023] Open
Abstract
Alchemical free energy calculations via molecular dynamics have been applied to obtain thermodynamic properties related to solid-liquid equilibrium conditions, such as melting points. In recent years, the pseudo-supercritical path (PSCP) method has proved to be an important approach to melting point prediction due to its flexibility and applicability. In the present work, we propose improvements to the PSCP alchemical cycle to make it more compact and efficient through a concerted evaluation of different potential energies. The multistate Bennett acceptance ratio (MBAR) estimator was applied at all stages of the new cycle to provide greater accuracy and uniformity, which is essential concerning uncertainty calculations. In particular, for the multistate expansion stage from solid to liquid, we employed the MBAR estimator with a reduced energy function that allows affine transformations of coordinates. Free energy and mean derivative profiles were calculated at different cycle stages for argon, triazole, propenal, and the ionic liquid 1-ethyl-3-methyl-imidazolium hexafluorophosphate. Comparisons showed a better performance of the proposed method than the original PSCP cycle for systems with higher complexity, especially the ionic liquid. A detailed study of the expansion stage revealed that remapping the centers of mass of the molecules or ions is preferable to remapping the coordinates of each atom, yielding better overlap between adjacent states and improving the accuracy of the methodology.
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Affiliation(s)
- Gabriela B Correa
- Chemical Engineering Program, Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa em Engenharia, Universidade Federal do Rio de Janeiro, Rio de Janeiro RJ 21941-909, Brazil
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Charlles R A Abreu
- Department of Chemical Engineering, Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro RJ 21941-909, Brazil
| | - Frederico W Tavares
- Chemical Engineering Program, Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa em Engenharia, Universidade Federal do Rio de Janeiro, Rio de Janeiro RJ 21941-909, Brazil
- Department of Chemical Engineering, Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro RJ 21941-909, Brazil
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
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Wang N, Carlozo MN, Marin-Rimoldi E, Befort BJ, Dowling AW, Maginn EJ. Machine Learning-Enabled Development of Accurate Force Fields for Refrigerants. J Chem Theory Comput 2023. [PMID: 37307414 DOI: 10.1021/acs.jctc.3c00338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Hydrofluorocarbon (HFC) refrigerants with zero ozone-depleting potential have replaced chlorofluorocarbons and are now ubiquitous. However, some HFCs have high global warming potential, which has led to calls by governments to phase out these HFCs. Technologies to recycle and repurpose these HFCs need to be developed. Therefore, thermophysical properties of HFCs are needed over a wide range of conditions. Molecular simulations can help understand and predict the thermophysical properties of HFCs. The prediction capability of a molecular simulation is directly tied to the accuracy of the force field. In this work, we applied and refined a machine learning-based workflow to optimize the Lennard-Jones parameters of classical HFC force fields for HFC-143a (CF3CH3), HFC-134a (CH2FCF3), R-50 (CH4), R-170 (C2H6), and R-14 (CF4). Our workflow involves liquid density iterations with molecular dynamics simulations and vapor-liquid equilibrium (VLE) iterations with Gibbs ensemble Monte Carlo simulations. Support vector machine classifiers and Gaussian process surrogate models save months of simulation time and can efficiently select optimal parameters from half a million distinct parameter sets. Excellent agreement as evidenced by low mean absolute percent errors (MAPEs) of simulated liquid density (ranging from 0.3% to 3.4%), vapor density (ranging from 1.4% to 2.6%), vapor pressure (ranging from 1.3% to 2.8%), and enthalpy of vaporization (ranging from 0.5% to 2.7%) relative to experiments was obtained for the recommended parameter set of each refrigerant. The performance of each new parameter set was superior or similar to the best force field in the literature.
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Affiliation(s)
- Ning Wang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Montana N Carlozo
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Eliseo Marin-Rimoldi
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Bridgette J Befort
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Alexander W Dowling
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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Wang N, DeFever RS, Maginn EJ. Alchemical Free Energy and Hamiltonian Replica Exchange Molecular Dynamics to Compute Hydrofluorocarbon Isotherms in Imidazolium-Based Ionic Liquids. J Chem Theory Comput 2023. [PMID: 37195874 DOI: 10.1021/acs.jctc.3c00206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Ionic liquids (ILs) have shown promise for applications that leverage differential gas solubility in an IL solvent, e.g., gas separations. Although most available literature provides Henry's law constants, the ability to efficiently estimate full isotherms is important for engineering design calculations. Molecular simulation can be used as a tool to predict full isotherms of gas in ILs. However, particle insertions or deletions in a charge-dense IL medium and the sluggish conformational dynamics of ILs present two sampling challenges for these systems. We therefore devised a method that uses Hamiltonian replica exchange (HREX) molecular dynamics (MD) combined with alchemical free energy calculations to compute full solubility isotherms of two different hydrofluorocarbons (HFCs) in imidazolium-based IL binary mixtures. This workflow is significantly faster than the Gibbs ensemble Monte Carlo (GEMC) simulations which fail to deal with the slow conformational relaxation caused by the sluggish dynamics of ILs. Multiple free energy estimators, including thermodynamic integration, free energy perturbation, and multistate Bennett acceptance ratio method, provided consistent results. Overall, the simulated Henry's law constant, isotherm curvature, and solubility trends match experimental results reasonably well. We close by calculating the full solubility isotherms of two HFCs in IL mixtures that have not been reported in the literature, demonstrating the potential of this method to be used for solubility prediction and setting the stage for future computational screening studies that search for the "best" IL to separate azeotropic HFC mixtures.
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Affiliation(s)
- Ning Wang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Ryan S DeFever
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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9
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Carmona Esteva FJ, Zhang Y, Colón YJ, Maginn EJ. Molecular Dynamics Simulation of the Influence of External Electric Fields on the Glass Transition Temperature of the Ionic Liquid 1-Ethyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide. J Phys Chem B 2023; 127:4623-4632. [PMID: 37192465 DOI: 10.1021/acs.jpcb.3c00936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
We present the results of molecular dynamics simulations of the ionic liquid (IL) 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C2C1im][NTf2] in the presence of external electric fields (EEFs) of varying strengths to understand the effects of EEFs on the glass transition temperature Tg. We compute Tg with an automated and objective method and observe a depression in Tg when cooling the IL within an EEF above a critical strength. The effect is reversible, and glasses prepared with EEFs recover their original zero-field Tg when heated. By examining the dynamics and structure of the liquid phase, we find that the EEF lowers the activation energy for diffusion, reducing the energetic barrier for movement and consequently Tg. We show that the effect can be leveraged to drive an electrified nonvapor compression refrigeration cycle.
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Affiliation(s)
- Fernando J Carmona Esteva
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yamil J Colón
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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Maginn EJ, Economou IG, Snurr RQ, Chakraborty AK. Tribute to Doros N. Theodorou. J Phys Chem B 2023; 127:2639-2642. [PMID: 36994534 DOI: 10.1021/acs.jpcb.3c00995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Affiliation(s)
- Edward J Maginn
- University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Ioannis G Economou
- Texas A&M University at Qatar, Chemical Engineering Program, PO Box 23874, Doha, Qatar
| | - Randall Q Snurr
- Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Arup K Chakraborty
- Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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11
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Galvez Vallejo JL, Tow GM, Maginn EJ, Pham BQ, Datta D, Gordon MS. Quantum Chemical Modeling of Propellant Degradation. J Phys Chem A 2023; 127:1874-1882. [PMID: 36791340 DOI: 10.1021/acs.jpca.2c08722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
An ab initio quantum chemical approach for the modeling of propellant degradation is presented. Using state-of-the-art bonding analysis techniques and composite methods, a series of potential degradation reactions are devised for a sample hydroxyl-terminated-polybutadiene (HTPB) type solid fuel. By applying thermochemical procedures and isodesmic reactions, accurate thermochemical quantities are obtained using a modified G3 composite method based on the resolution of the identity. The calculated heats of formation for the different structures produced presents an ∼2 kcal/mol average error when compared against experimental values.
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Affiliation(s)
- Jorge L Galvez Vallejo
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50014, United States
| | - Garrett M Tow
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Buu Q Pham
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50014, United States
| | - Dipayan Datta
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50014, United States
| | - Mark S Gordon
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50014, United States
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12
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Affiliation(s)
- Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556 United States
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13
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Wang N, Zhang Y, Al-Barghouti KS, Kore R, Scurto AM, Maginn EJ. Structure and Dynamics of Hydrofluorocarbon/Ionic Liquid Mixtures: An Experimental and Molecular Dynamics Study. J Phys Chem B 2022; 126:8309-8321. [PMID: 36206447 DOI: 10.1021/acs.jpcb.2c05787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The physical properties of four ionic liquids (ILs), including 1-n-butyl-3-methylimidazolium tetrafluoroborate ([C4C1im][BF4]), 1-n-butyl-3-methylimidazolium hexafluorophosphate ([C4C1im][PF6]), 1-n-butyl-3-methylimidazolium thiocyanate ([C4C1im][SCN]), and 1-n-hexyl-3-methylimidazolium chloride ([C6C1im][Cl]), and their mixtures with hydrofluorocarbon (HFC) gases HFC-32 (CH2F2), HFC-125 (CHF2CF3), and HFC-410A, a 50/50 wt % mixture of HFC-32 and HFC-125, were studied using molecular dynamics (MD) simulation. Experiments were conducted to measure the density, self-diffusivity, and shear viscosity of HFC/[C4C1im][BF4] system. Extensive analyses were carried out to understand the effect of IL structure on various properties of the HFC/IL mixtures. Density, diffusivity, and viscosity of the pure ILs were calculated and compared with experimental values. The good agreement between computed and experimental results suggests that the applied force fields are reliable. The calculated center of mass (COM) radial distribution functions (RDFs), partial RDFs, spatial distribution functions (SDFs), and coordination numbers (CNs) provide a sense of how the distribution of HFC changes in the liquid mixtures with IL structure. Detailed analysis reveals that selectivity toward HFC-32 and HFC-125 depends on both cation and anion. The molecular insight provided in the current work will help the design of optimal ILs for the separation of azeotropic HFC mixtures.
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Affiliation(s)
- Ning Wang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Karim S Al-Barghouti
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas66045, United States.,Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, Kansas66047, United States.,Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas66045, United States
| | - Rajkumar Kore
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas66045, United States.,Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, Kansas66047, United States.,Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas66045, United States
| | - Aaron M Scurto
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas66045, United States.,Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, Kansas66047, United States.,Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas66045, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana46556, United States
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14
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Zhang Y, Klein JM, Akolkar R, Gurkan BE, Maginn EJ. Solvation Structure, Dynamics, and Charge Transfer Kinetics of Cu 2+ and Cu + in Choline Chloride Ethylene Glycol Electrolytes. J Phys Chem B 2022; 126:6493-6499. [PMID: 35976689 DOI: 10.1021/acs.jpcb.2c04798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Experimental measurements and classical molecular dynamics (MD) simulations were carried out to study electrolytes containing CuCl2 and CuCl salts in mixtures of choline chloride (ChCl) and ethylene glycol (EG). The study focused on the concentration of 100 mM of both CuCl2 and CuCl with the ratio of ChCl/EG varied from 1:2, 1:3, 1:4, to 1:5. It was found that the Cu2+ and Cu+ have different solvation environments in their first solvation shell. Cu2+ is coordinated by both Cl- anions and EG molecules, whereas Cu+ is only solvated by EG. However, both Cu2+ and Cu+ show strong interactions with their second solvation shells, which include both Cl- anions and EG molecules. Considering both the first and second solvation shells, the concentrations of Cu2+ and Cu+ that have various coordination numbers in each solution were calculated and were found to correlate qualitatively with the exchange current density trends reported in previous experiments of Cu2+ reduction to Cu+. This finding makes a connection between atomic solvation structure observed in MD simulations and redox reaction kinetics measured in electrochemical experiments, thus revealing the significance of the solvation environment of reduced and oxidized species for electrokinetics in deep eutectic solvents.
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Affiliation(s)
- Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Jeffrey M Klein
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Rohan Akolkar
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Burcu E Gurkan
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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15
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Lewis NHC, Dereka B, Zhang Y, Maginn EJ, Tokmakoff A. From Networked to Isolated: Observing Water Hydrogen Bonds in Concentrated Electrolytes with Two-Dimensional Infrared Spectroscopy. J Phys Chem B 2022; 126:5305-5319. [PMID: 35829623 DOI: 10.1021/acs.jpcb.2c03341] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Superconcentrated electrolytes have emerged as a promising class of materials for energy storage devices, with evidence that high voltage performance is possible even with water as the solvent. Here, we study the changes in the water hydrogen bonding network induced by the dissolution of lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) in concentrations ranging from the dilute to the superconcentrated regimes. Using time-resolved two-dimensional infrared spectroscopy, we observe the progressive disruption of the water-water hydrogen bond network and the appearance of isolated water molecules interacting only with ions, which can be identified and spectroscopically isolated through the intermolecular cross-peaks between the water and the TFSI- ions. Analyzing the vibrational relaxation of excitations of the H2O stretching mode, we observe a transition in the dominant relaxation path as the bulk-like water vanishes and is replaced by ion-solvation water with the rapid single-step relaxation of delocalized stretching vibrations into the low frequency modes being replaced by multistep relaxation through the intramolecular H2O bend and into the TFSI- high frequency modes prior to relaxing to the low frequency structural degrees of freedom. These results definitively demonstrate the absence of vibrationally bulk-like water in the presence of high concentrations of LiTFSI and especially in the superconcentrated regime, while additionally revealing aspects of the water hydrogen bond network that have been difficult to discern from the vibrational spectroscopy of the neat liquid.
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Affiliation(s)
- Nicholas H C Lewis
- Department of Chemistry, James Franck Institute, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Bogdan Dereka
- Department of Chemistry, James Franck Institute, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yong Zhang
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Andrei Tokmakoff
- Department of Chemistry, James Franck Institute, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
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16
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González MA, Akiba H, Borodin O, Cuello GJ, Hennet L, Kohara S, Maginn EJ, Mangin-Thro L, Yamamuro O, Zhang Y, Price DL, Saboungi ML. Structure of water-in-salt and water-in-bisalt electrolytes. Phys Chem Chem Phys 2022; 24:10727-10736. [PMID: 35451439 DOI: 10.1039/d2cp00537a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a systematic diffraction study of two "water-in-salt" electrolytes and a "water-in-bisalt" electrolyte combining high-energy X-ray diffraction (HEXRD) with polarized and unpolarized neutron diffraction (ND) on both H2O and D2O solutions. The measurements provide three independent combinations of correlations between the different pairs of atom types that reveal the short- and intermediate-range order in considerable detail. The ND interference functions show pronounced peaks around a scattering vector Q ∼ 0.5 Å-1 that change dramatically with composition, indicating significant rearrangements of the water network on a length scale around 12 Å. The experimental results are compared with two sets of Molecular Dynamics (MD) simulations, one including polarization effects and the other based on a non-polarizable force field. The two simulations reproduce the general shapes of the experimental structure factors and their changes with concentration, but differ in many detailed respects, suggesting ways in which their force fields might be modified to better represent the actual systems.
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Affiliation(s)
| | - Hiroshi Akiba
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Oleg Borodin
- Battery Science Branch, U.S. Army Combat Capabilities Development Command, Army Research Laboratory, Adelphi, Maryland 20783, USA.
| | | | - Louis Hennet
- ICMN, Université d'Orléans/CNRS, 45071 Orléans, France
| | - Shinji Kohara
- Research Center for Advanced Measurement and Characterization, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Edward J Maginn
- Dept. of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Lucile Mangin-Thro
- Institut Laue-Langevin, 71 avenue des Martyrs, 38042 Grenoble Cedex 9, France
| | - Osamu Yamamuro
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Yong Zhang
- Dept. of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - David L Price
- CEMHTI, CNRS/Université d'Orléans, 45071 Orléans, France
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17
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Abstract
This work showcases the remarkable ability of sigma profiles to function as molecular descriptors in deep learning. The sigma profiles of 1432 compounds are used to train convolutional neural networks that accurately correlate and predict a wide range of physicochemical properties. The architectures developed are then exploited to include temperature as an additional feature.
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Affiliation(s)
- Dinis O Abranches
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA.
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA.
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA.
| | - Yamil J Colón
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA.
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18
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Dereka B, Lewis NHC, Zhang Y, Hahn NT, Keim JH, Snyder SA, Maginn EJ, Tokmakoff A. Exchange-Mediated Transport in Battery Electrolytes: Ultrafast or Ultraslow? J Am Chem Soc 2022; 144:8591-8604. [PMID: 35470669 DOI: 10.1021/jacs.2c00154] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Understanding the mechanisms of charge transport in batteries is important for the rational design of new electrolyte formulations. Persistent questions about ion transport mechanisms in battery electrolytes are often framed in terms of vehicular diffusion by persistent ion-solvent complexes versus structural diffusion through the breaking and reformation of ion-solvent contacts, i.e., solvent exchange events. Ultrafast two-dimensional (2D) IR spectroscopy can probe exchange processes directly via the evolution of the cross-peaks on picosecond time scales. However, vibrational energy transfer in the absence of solvent exchange gives rise to the same spectral signatures, hiding the desired processes. We employ 2D IR on solvent resonances of a mixture of acetonitrile isotopologues to differentiate chemical exchange and energy-transfer dynamics in a comprehensive series of Li+, Mg2+, Zn2+, Ca2+, and Ba2+ bis(trifluoromethylsulfonyl)imide electrolytes from the dilute to the superconcentrated regime. No exchange phenomena occur within at least 100 ps, regardless of the ion identity, salt concentration, and presence of water. All of the observed spectral dynamics originate from the intermolecular energy transfer. These results place the lower experimental boundary on the ion-solvent residence times to several hundred picoseconds, much slower than previously suggested. With the help of MD simulations and conductivity measurements on the Li+ and Zn2+ systems, we discuss these results as a continuum of vehicular and structural modalities that vary with concentration and emphasize the importance of collective electrolyte motions to ion transport. These results hold broadly applicable to many battery-relevant ions and solvents.
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Affiliation(s)
- Bogdan Dereka
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States.,Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Nicholas H C Lewis
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States.,Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yong Zhang
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Nathan T Hahn
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Material, Physical and Chemical Sciences Center, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Jonathan H Keim
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Scott A Snyder
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Edward J Maginn
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Andrei Tokmakoff
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States.,Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
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19
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Zhang Y, Lewis NHC, Mars J, Wan G, Weadock NJ, Takacs CJ, Lukatskaya MR, Steinrück HG, Toney MF, Tokmakoff A, Maginn EJ. Correction to "Water-in-Salt LiTFSI Aqueous Electrolytes. 1. Liquid Structure from Combined Molecular Dynamics Simulation and Experimental Studies". J Phys Chem B 2022; 126:3196-3197. [PMID: 35420823 DOI: 10.1021/acs.jpcb.2c02267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Spittle S, Poe D, Doherty B, Kolodziej C, Heroux L, Haque MA, Squire H, Cosby T, Zhang Y, Fraenza C, Bhattacharyya S, Tyagi M, Peng J, Elgammal RA, Zawodzinski T, Tuckerman M, Greenbaum S, Gurkan B, Burda C, Dadmun M, Maginn EJ, Sangoro J. Author Correction: Evolution of microscopic heterogeneity and dynamics in choline chloride-based deep eutectic solvents. Nat Commun 2022; 13:1081. [PMID: 35194051 PMCID: PMC8864022 DOI: 10.1038/s41467-022-28671-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Stephanie Spittle
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Derrick Poe
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Brian Doherty
- Department of Chemistry, New York University, New York, NY, 10003, USA
| | - Charles Kolodziej
- Department of Chemistry, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Luke Heroux
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA.,Oak Ridge National Laboratory, Neutron Sciences Division, Oak Ridge, TN, 37830, USA
| | - Md Ashraful Haque
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37996, USA
| | - Henry Squire
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Tyler Cosby
- School of Mathematics and Sciences, University of Tennessee Southern, Pulaski, TN, 44106, USA
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Carla Fraenza
- Department of Physics and Astronomy, Hunter College, New York, NY, 10065, USA
| | | | - Madhusudan Tyagi
- NIST Center for Neutron Research, Gaithersburg, MD, 20899, USA.,Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Jing Peng
- School of Materials Science and Engineering, Beihang University, Beijing, China
| | - Ramez A Elgammal
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Thomas Zawodzinski
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Mark Tuckerman
- Department of Chemistry, New York University, New York, NY, 10003, USA.,Courant Institute of Mathematical Science, New York University, New York, NY, 10012, USA.,NYU-ECNU Center for Computational Chemistry at NYU Shanghai, Shanghai, China
| | - Steve Greenbaum
- Department of Physics and Astronomy, Hunter College, New York, NY, 10065, USA
| | - Burcu Gurkan
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Clemens Burda
- Department of Chemistry, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Mark Dadmun
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37996, USA.,Oak Ridge National Laboratory, Chemical Sciences Division, Oak Ridge, TN, 37830, USA
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA.
| | - Joshua Sangoro
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA.
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21
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Zhang Y, Maginn EJ. Water-In-Salt LiTFSI Aqueous Electrolytes (2): Transport Properties and Li + Dynamics Based on Molecular Dynamics Simulations. J Phys Chem B 2021; 125:13246-13254. [PMID: 34813336 DOI: 10.1021/acs.jpcb.1c07581] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The transport properties of water-in-salt lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) aqueous electrolytes were studied using classical molecular dynamics (MD) simulations. At high salt concentrations of 20 m, the calculated viscosity, self-diffusion coefficients, ionic conductivity, the inverse Haven ratio, and the Li+ apparent transference number all agree with previous experimental results quantitatively. Furthermore, analyses show that the high apparent transference number for Li+ is due to the fact that the dynamics of TFSI- decrease more quickly with increasing salt concentration than the dynamics of Li+ ions due to the formation of a TFSI- network. In addition, it was shown that the conduction of Li+ ions through the highly concentrated electrolyte occurs mainly via a hopping mechanism instead of a vehicular mechanism hypothesized in earlier studies of this system.
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Affiliation(s)
- Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame 46556, Indiana, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont 60439, Illinois, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame 46556, Indiana, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont 60439, Illinois, United States
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22
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DeFever RS, Maginn EJ. Computing the Liquidus of Binary Monatomic Salt Mixtures with Direct Simulation and Alchemical Free Energy Methods. J Phys Chem A 2021; 125:8498-8513. [PMID: 34543018 DOI: 10.1021/acs.jpca.1c06107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe and validate a free-energy-based method for computing the liquidus for binary solid-liquid phase diagrams in molecular simulations of monatomic salts. The method is demonstrated by calculating the liquidus for LiCl-KCl and MgCl2-KCl salt mixtures with the polarizable ion model (PIM). The free-energy-based method is cross-validated with direct coexistence simulations. Both techniques show excellent agreement with one another. Though the predictions of the PIM disagree with experiments, we use our free-energy-based approach to decouple the contributions of liquid mixture nonidealities and pure component solid-liquid equilibrium to the phase diagram. In both mixtures, the PIM accurately reproduces the liquid phase nonidealities but fails to predict the liquidus because it does not accurately predict the pure component melting temperature of LiCl or MgCl2.
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Affiliation(s)
- Ryan S DeFever
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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23
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Befort BJ, DeFever RS, Tow GM, Dowling AW, Maginn EJ. Machine Learning Directed Optimization of Classical Molecular Modeling Force Fields. J Chem Inf Model 2021; 61:4400-4414. [PMID: 34402301 DOI: 10.1021/acs.jcim.1c00448] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Accurate force fields are necessary for predictive molecular simulations. However, developing force fields that accurately reproduce experimental properties is challenging. Here, we present a machine learning directed, multiobjective optimization workflow for force field parametrization that evaluates millions of prospective force field parameter sets while requiring only a small fraction of them to be tested with molecular simulations. We demonstrate the generality of the approach and identify multiple low-error parameter sets for two distinct test cases: simulations of hydrofluorocarbon (HFC) vapor-liquid equilibrium (VLE) and an ammonium perchlorate (AP) crystal phase. We discuss the challenges and implications of our force field optimization workflow.
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Affiliation(s)
- Bridgette J Befort
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Ryan S DeFever
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Garrett M Tow
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Alexander W Dowling
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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24
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DeFever RS, Matsumoto RA, Dowling AW, Cummings PT, Maginn EJ. MoSDeF Cassandra: A complete Python interface for the Cassandra Monte Carlo software. J Comput Chem 2021; 42:1321-1331. [PMID: 33931885 DOI: 10.1002/jcc.26544] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/06/2021] [Accepted: 04/11/2021] [Indexed: 12/14/2022]
Abstract
We introduce a new Python interface for the Cassandra Monte Carlo software, molecular simulation design framework (MoSDeF) Cassandra. MoSDeF Cassandra provides a simplified user interface, offers broader interoperability with other molecular simulation codes, enables the construction of programmatic and reproducible molecular simulation workflows, and builds the infrastructure necessary for high-throughput Monte Carlo studies. Many of the capabilities of MoSDeF Cassandra are enabled via tight integration with MoSDeF. We discuss the motivation and design of MoSDeF Cassandra and proceed to demonstrate both simple use-cases and more complex workflows, including adsorption in porous media and a combined molecular dynamics - Monte Carlo workflow for computing lateral diffusivity in graphene slit pores. The examples presented herein demonstrate how even relatively complex simulation workflows can be reduced to, at most, a few files of Python code that can be version-controlled and shared with other researchers. We believe this paradigm will enable more rapid research advances and represents the future of molecular simulations.
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Affiliation(s)
- Ryan S DeFever
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA
| | - Ray A Matsumoto
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Alexander W Dowling
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA
| | - Peter T Cummings
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA
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25
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Ma L, Pollard TP, Zhang Y, Schroeder MA, Ding MS, Cresce AV, Sun R, Baker DR, Helms BA, Maginn EJ, Wang C, Borodin O, Xu K. Functionalized Phosphonium Cations Enable Zinc Metal Reversibility in Aqueous Electrolytes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lin Ma
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Travis P. Pollard
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame IN 46556 USA
| | - Marshall A. Schroeder
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Michael S. Ding
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Arthur V. Cresce
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Ruimin Sun
- Department of Chemical and Biomolecular Engineering University of Maryland College Park MD 20742 USA
| | - David R. Baker
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Brett A. Helms
- The Molecular Foundry and the Joint Center for Energy Storage Research Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame IN 46556 USA
| | - Chunsheng Wang
- Department of Chemical and Biomolecular Engineering University of Maryland College Park MD 20742 USA
| | - Oleg Borodin
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Kang Xu
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
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26
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Zhang Y, Lewis NHC, Mars J, Wan G, Weadock NJ, Takacs CJ, Lukatskaya MR, Steinrück HG, Toney MF, Tokmakoff A, Maginn EJ. Water-in-Salt LiTFSI Aqueous Electrolytes. 1. Liquid Structure from Combined Molecular Dynamics Simulation and Experimental Studies. J Phys Chem B 2021; 125:4501-4513. [PMID: 33904299 DOI: 10.1021/acs.jpcb.1c02189] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The concept of water-in-salt electrolytes was introduced recently, and these systems have been successfully applied to yield extended operation voltage and hence significantly improved energy density in aqueous Li-ion batteries. In the present work, results of X-ray scattering and Fourier-transform infrared spectra measurements over a wide range of temperatures and salt concentrations are reported for the LiTFSI (lithium bis(trifluoromethane sulfonyl)imide)-based water-in-salt electrolyte. Classical molecular dynamics simulations are validated against the experiments and used to gain additional information about the electrolyte structure. Based on our analyses, a new model for the liquid structure is proposed. Specifically, we demonstrate that at the highest LiTFSI concentration of 20 m the water network is disrupted, and the majority of water molecules exist in the form of isolated monomers, clusters, or small aggregates with chain-like configurations. On the other hand, TFSI- anions are connected to each other and form a network. This description is fundamentally different from those proposed in earlier studies of this system.
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Affiliation(s)
- Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Nicholas H C Lewis
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Department of Chemistry, James Franck Institute, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States
| | - Julian Mars
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Gang Wan
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Menlo Park, California 94025, United States
| | - Nicholas J Weadock
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States.,SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Menlo Park, California 94025, United States
| | - Christopher J Takacs
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Menlo Park, California 94025, United States
| | - Maria R Lukatskaya
- Department of Chemistry, James Franck Institute, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States
| | | | - Michael F Toney
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Andrei Tokmakoff
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Department of Chemistry, James Franck Institute, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, Illinois 60439, United States
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27
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Tow GM, Maginn EJ. Cross-Linking Methodology for Fully Atomistic Models of Hydroxyl-Terminated Polybutadiene and Determination of Mechanical Properties. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Garrett M. Tow
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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28
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Tow GM, Maginn EJ. Erratum: "Evaluating physical properties of the orthorhombic crystal phase of ammonium perchlorate using a Class II force field" [J. Chem. Phys. 149, 244502 (2018)]. J Chem Phys 2021; 154:169901. [PMID: 33940803 DOI: 10.1063/5.0053703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Garrett M Tow
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
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29
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Ma L, Pollard TP, Zhang Y, Schroeder MA, Ding MS, Cresce AV, Sun R, Baker DR, Helms BA, Maginn EJ, Wang C, Borodin O, Xu K. Functionalized Phosphonium Cations Enable Zinc Metal Reversibility in Aqueous Electrolytes. Angew Chem Int Ed Engl 2021; 60:12438-12445. [DOI: 10.1002/anie.202017020] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Lin Ma
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Travis P. Pollard
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame IN 46556 USA
| | - Marshall A. Schroeder
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Michael S. Ding
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Arthur V. Cresce
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Ruimin Sun
- Department of Chemical and Biomolecular Engineering University of Maryland College Park MD 20742 USA
| | - David R. Baker
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Brett A. Helms
- The Molecular Foundry and the Joint Center for Energy Storage Research Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame IN 46556 USA
| | - Chunsheng Wang
- Department of Chemical and Biomolecular Engineering University of Maryland College Park MD 20742 USA
| | - Oleg Borodin
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
| | - Kang Xu
- Battery Science Branch Energy Science Division, Sensor and Electron Devices Directorate DEVCOM Army Research Laboratory Adelphi MD 20783 USA
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30
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Cummings PT, MCabe C, Iacovella CR, Ledeczi A, Jankowski E, Jayaraman A, Palmer JC, Maginn EJ, Glotzer SC, Anderson JA, Ilja Siepmann J, Potoff J, Matsumoto RA, Gilmer JB, DeFever RS, Singh R, Crawford B. Open‐source molecular modeling software in chemical engineering focusing on the Molecular Simulation Design Framework. AIChE J 2021. [DOI: 10.1002/aic.17206] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Peter T. Cummings
- Department of Chemical and Biomolecular Engineering and Multiscale Modeling and Simulation Center Vanderbilt University Nashville Tennessee USA
| | - Clare MCabe
- Department of Chemical and Biomolecular Engineering and Multiscale Modeling and Simulation Center Vanderbilt University Nashville Tennessee USA
- Department of Chemistry Vanderbilt University Nashville Tennessee USA
| | - Christopher R. Iacovella
- Department of Chemical and Biomolecular Engineering and Multiscale Modeling and Simulation Center Vanderbilt University Nashville Tennessee USA
| | - Akos Ledeczi
- Department of Electrical Engineering and Computer Science and Institute for Software Integrated Systems Vanderbilt University Nashville Tennessee USA
| | - Eric Jankowski
- Micron School of Materials Science and Engineering Boise State University Boise Idaho USA
| | - Arthi Jayaraman
- Departments of Chemical and Biomolecular Engineering and of Materials Science and Engineering University of Delaware Newark Delaware USA
| | - Jeremy C. Palmer
- Department of Chemical and Biomolecular Engineering University of Houston Houston Texas USA
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame Indiana USA
| | - Sharon C. Glotzer
- Departments of Chemical Engineering, of Materials Science, and of Physics University of Michigan Ann Arbor Michigan USA
| | - Joshua A. Anderson
- Departments of Chemical Engineering, of Materials Science, and of Physics University of Michigan Ann Arbor Michigan USA
| | - J. Ilja Siepmann
- Department of Chemistry and Chemical Theory Center University of Minnesota Minneapolis Minnesota USA
- Department of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota USA
| | - Jeffrey Potoff
- Department of Chemical Engineering and Materials Science, Wayne State University Detroit Michigan USA
| | - Ray A. Matsumoto
- Department of Chemical and Biomolecular Engineering and Multiscale Modeling and Simulation Center Vanderbilt University Nashville Tennessee USA
| | - Justin B. Gilmer
- Interdisciplinary Graduate Program in Materials Science and Multiscale Modeling and Simulation Center Vanderbilt University Nashville Tennessee USA
| | - Ryan S. DeFever
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame Indiana USA
| | - Ramanish Singh
- Department of Chemistry and Chemical Theory Center University of Minnesota Minneapolis Minnesota USA
- Department of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota USA
| | - Brad Crawford
- Department of Chemical Engineering and Materials Science, Wayne State University Detroit Michigan USA
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31
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Affiliation(s)
- Burcu E Gurkan
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame
| | - Emily B Pentzer
- Department of Chemistry and Department of Materials Science and Engineering, Texas A&M University
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32
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Hansen BB, Spittle S, Chen B, Poe D, Zhang Y, Klein JM, Horton A, Adhikari L, Zelovich T, Doherty BW, Gurkan B, Maginn EJ, Ragauskas A, Dadmun M, Zawodzinski TA, Baker GA, Tuckerman ME, Savinell RF, Sangoro JR. Deep Eutectic Solvents: A Review of Fundamentals and Applications. Chem Rev 2020; 121:1232-1285. [PMID: 33315380 DOI: 10.1021/acs.chemrev.0c00385] [Citation(s) in RCA: 672] [Impact Index Per Article: 168.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Deep eutectic solvents (DESs) are an emerging class of mixtures characterized by significant depressions in melting points compared to those of the neat constituent components. These materials are promising for applications as inexpensive "designer" solvents exhibiting a host of tunable physicochemical properties. A detailed review of the current literature reveals the lack of predictive understanding of the microscopic mechanisms that govern the structure-property relationships in this class of solvents. Complex hydrogen bonding is postulated as the root cause of their melting point depressions and physicochemical properties; to understand these hydrogen bonded networks, it is imperative to study these systems as dynamic entities using both simulations and experiments. This review emphasizes recent research efforts in order to elucidate the next steps needed to develop a fundamental framework needed for a deeper understanding of DESs. It covers recent developments in DES research, frames outstanding scientific questions, and identifies promising research thrusts aligned with the advancement of the field toward predictive models and fundamental understanding of these solvents.
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Affiliation(s)
- Benworth B Hansen
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee37996-2200, United States
| | - Stephanie Spittle
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee37996-2200, United States
| | - Brian Chen
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Derrick Poe
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Jeffrey M Klein
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Alexandre Horton
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee37996-2200, United States
| | - Laxmi Adhikari
- Department of Chemistry, University of Missouri-Columbia, Columbia, Missouri 65211, United States
| | - Tamar Zelovich
- Department of Chemistry, New York University, New York, New York 10003, United States
| | - Brian W Doherty
- Department of Chemistry, New York University, New York, New York 10003, United States
| | - Burcu Gurkan
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Arthur Ragauskas
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee37996-2200, United States
| | - Mark Dadmun
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37916, United States
| | - Thomas A Zawodzinski
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee37996-2200, United States
| | - Gary A Baker
- Department of Chemistry, University of Missouri-Columbia, Columbia, Missouri 65211, United States
| | - Mark E Tuckerman
- Department of Chemistry, New York University, New York, New York 10003, United States
| | - Robert F Savinell
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Joshua R Sangoro
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee37996-2200, United States
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33
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Wang H, DeFever RS, Zhang Y, Wu F, Roy S, Bryantsev VS, Margulis CJ, Maginn EJ. Comparison of fixed charge and polarizable models for predicting the structural, thermodynamic, and transport properties of molten alkali chlorides. J Chem Phys 2020; 153:214502. [DOI: 10.1063/5.0023225] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Haimeng Wang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Ryan S. DeFever
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Fei Wu
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52245, USA
| | - Santanu Roy
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | | | | | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
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34
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Sharma S, Emerson MS, Wu F, Wang H, Maginn EJ, Margulis CJ. SEM-Drude Model for the Accurate and Efficient Simulation of MgCl 2-KCl Mixtures in the Condensed Phase. J Phys Chem A 2020; 124:7832-7842. [PMID: 32841019 DOI: 10.1021/acs.jpca.0c06721] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
There is a long history of models that to different extents reproduce structural and dynamical properties of high-temperature molten salts. Whereas rigid ion models can work fairly well for some of the monovalent salts, polarizability is fundamentally important when small divalent or multivalent cations are combined with significantly polarizable anions such as Cl- to form networked liquids that display a first sharp diffraction peak. There are excellent polarizable ion models (PIMs) for these systems, but there has been little success with the less expensive Core-Shell type models, which are often described as unwieldy or difficult to fit. In this article, we present the Sharma-Emerson-Margulis (SEM)-Drude model for MgCl2/KCl mixtures that with the same ingredients used in the latest and most accurate PIM models overcome the aforementioned obstacles at significantly less computational cost; structural and dynamical properties are for all practical purposes very similar to what we obtain from the PIM but typical simulations can be more than 30 times faster. This has allowed us not only to expand our recent studies on the temperature and composition dependence of intermediate range order in MgCl2/KCl mixtures but also to access transport properties that were simply too costly to properly sample in our recently published studies.
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Affiliation(s)
- Shobha Sharma
- Department of Chemistry, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Matthew S Emerson
- Department of Chemistry, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Fei Wu
- Department of Chemistry, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Haimeng Wang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Claudio J Margulis
- Department of Chemistry, The University of Iowa, Iowa City, Iowa 52242, United States
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35
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Morais ARC, Harders AN, Baca KR, Olsen GM, Befort BJ, Dowling AW, Maginn EJ, Shiflett MB. Phase Equilibria, Diffusivities, and Equation of State Modeling of HFC-32 and HFC-125 in Imidazolium-Based Ionic Liquids for the Separation of R-410A. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02820] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ana Rita C. Morais
- Department of Chemical & Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Abby N. Harders
- Department of Chemical & Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
- Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Kalin R. Baca
- Department of Chemical & Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
- Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Greta M. Olsen
- Department of Chemical & Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
- Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Bridgette J. Befort
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Alexander W. Dowling
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J. Maginn
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Mark B. Shiflett
- Department of Chemical & Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
- Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas 66045, United States
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36
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Bernardino K, Zhang Y, Ribeiro MCC, Maginn EJ. Effect of alkyl-group flexibility on the melting point of imidazolium-based ionic liquids. J Chem Phys 2020; 153:044504. [PMID: 32752715 DOI: 10.1063/5.0015992] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The low melting point of room temperature ionic liquids is usually explained in terms of the presence of bulky, low-symmetry, and flexible ions, with the first two factors related to the lattice energy while an entropic effect is attributed to the latter. By means of molecular dynamics simulations, the melting points of 1-ethyl-3-methyl-imidazolium hexafluorophosphate and 1-decyl-3-methyl-imidazolium hexafluorophosphate were determined, and the effect of the molecular flexibility over the melting point was explicitly computed by restraining the rotation of dihedral angles in both the solid and the liquid phases. The rotational flexibility over the bond between the ring and the alkyl chain affects the relative ordering of the anions around the cations and results in substantial effects over both the enthalpy and the entropy of melting. For the other dihedral angles of the alkyl group, the contributions are predominantly entropic and an alternating behavior was found. The flexibility of some dihedral angles has negligible effects on the melting point, while others can lead to differences in the melting point as large as 20 K. This alternating behavior is rationalized by the different probabilities of conformation defects in the crystal.
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Affiliation(s)
- Kalil Bernardino
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Mauro C C Ribeiro
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
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37
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Wang J, Zhang Y, Wang X, Maginn EJ. Layer-based thermal migration of an ionic liquid nano-droplet on a graphene surface: a molecular dynamics study. Molecular Simulation 2020. [DOI: 10.1080/08927022.2020.1776277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Jingqiu Wang
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, People’s Republic of China
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Xiaolei Wang
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, People’s Republic of China
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
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38
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DeFever RS, Wang H, Zhang Y, Maginn EJ. Melting points of alkali chlorides evaluated for a polarizable and non-polarizable model. J Chem Phys 2020; 153:011101. [DOI: 10.1063/5.0012253] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ryan S. DeFever
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Haimeng Wang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
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39
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Jungwirth P, Maginn EJ, Roux B, Schmid F, Shea JE. Characteristics of Impactful Computational Contributions to The Journal of Physical Chemistry B. J Phys Chem B 2020; 124:5093-5094. [PMID: 32580559 DOI: 10.1021/acs.jpcb.0c04149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Zhang Y, Poe D, Heroux L, Squire H, Doherty BW, Long Z, Dadmun M, Gurkan B, Tuckerman ME, Maginn EJ. Liquid Structure and Transport Properties of the Deep Eutectic Solvent Ethaline. J Phys Chem B 2020; 124:5251-5264. [DOI: 10.1021/acs.jpcb.0c04058] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556 United States
| | - Derrick Poe
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556 United States
| | - Luke Heroux
- Department of Material Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Oak Ridge National Laboratory, Neutron Sciences Division, Oak Ridge, Tennessee 37831, United States
| | - Henry Squire
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Brian W. Doherty
- Department of Chemistry, New York University, New York, New York 10012, United States
| | - Zhuoran Long
- Department of Chemistry, New York University, New York, New York 10012, United States
| | - Mark Dadmun
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Oak Ridge National Laboratory, Chemical Sciences Division, Oak Ridge, Tennessee 37831, United States
| | - Burcu Gurkan
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Mark E. Tuckerman
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Courant Institute of Mathematical Science, New York University, New York, New York 10012, United States
- NYU-ECNU Center for Computational Chemistry at NYU Shanghai, 3663 Zhongshan Rd. North, Shanghai 200062, China
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556 United States
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41
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Tow GM, Maginn EJ. Fully Atomistic Molecular Dynamics Simulations of Hydroxyl-Terminated Polybutadiene with Insights into Hydroxyl Aggregation. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02632] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Garrett M. Tow
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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42
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Newcomb K, Bernales V, Tiwari SP, Gagliardi L, Maginn EJ. The role of cations in uranyl nanocluster association: a molecular dynamics study. Phys Chem Chem Phys 2020; 22:1847-1854. [PMID: 31903472 DOI: 10.1039/c9cp05138d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Actinyl ions can self-assemble in aqueous solution to form closed cage clusters ranging from 1.5 to 4.0 nm in diameter. The self-assembly, stability, and behavior of the nanoclusters depend on the nature of the aqueous environment, such as the pH and cations present. In this work, a classical force field for [(UO2)20(O2)30]20- (U20) peroxide nanoclusters in aqueous solution was developed from quantum-mechanical calculations. Using molecular dynamics simulations, the preferred binding sites of six cations (Li+, Na+, K+, Rb+, Cs+, and Ca2+) to the nanocluster were determined. Replica exchange molecular dynamics was used to equilibrate the structure and determine the equilibrium distribution of cations and water with respect to the nanocluster cage. In addition, the free energy barriers associated with cations entering the cluster were computed. Finally, the association of two cages was investigated by computing the free energy as a function of intercage distance. The free energy profiles reveal that the nanoclusters prefer to be associated when neutralized with divalent cations, but do not associate when neutralized with monovalent cations. This could explain the formation of tertiary structures observed experimentally.
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Affiliation(s)
- Ken Newcomb
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, 250 Nieuwland Hall, Notre Dame, IN 46556, USA.
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43
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Fiates J, Zhang Y, Franco LFM, Maginn EJ, Doubek G. Impact of anion shape on Li+ solvation and on transport properties for lithium–air batteries: a molecular dynamics study. Phys Chem Chem Phys 2020; 22:15842-15852. [DOI: 10.1039/d0cp00853b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Here we report the influence of the anion shape over the solvation structure and transport properties over commonly employed Li–O2 electrolytes and discuss their implications for the device.
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Affiliation(s)
- Juliane Fiates
- School of Chemical Engineering
- University of Campinas
- Campinas 13083-852
- Brazil
- Department of Chemical and Biomolecular Engineering
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering
- University of Notre Dame
- Notre Dame
- USA
| | - Luís F. M. Franco
- School of Chemical Engineering
- University of Campinas
- Campinas 13083-852
- Brazil
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering
- University of Notre Dame
- Notre Dame
- USA
| | - Gustavo Doubek
- School of Chemical Engineering
- University of Campinas
- Campinas 13083-852
- Brazil
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44
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Roy S, Wu F, Wang H, Ivanov AS, Sharma S, Halstenberg P, Gill SK, Milinda Abeykoon AM, Kwon G, Topsakal M, Layne B, Sasaki K, Zhang Y, Mahurin SM, Dai S, Margulis CJ, Maginn EJ, Bryantsev VS. Structure and dynamics of the molten alkali-chloride salts from an X-ray, simulation, and rate theory perspective. Phys Chem Chem Phys 2020; 22:22900-22917. [DOI: 10.1039/d0cp03672b] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molten salts are of great interest as alternative solvents, electrolytes, and heat transfer fluids in many emerging technologies.
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Affiliation(s)
- Santanu Roy
- Chemical Sciences Division
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - Fei Wu
- Department of Chemistry
- The University of Iowa
- USA
| | - Haimeng Wang
- Department of Chemical and Biomolecular Engineering
- University of Notre Dame
- USA
| | | | | | - Phillip Halstenberg
- Chemical Sciences Division
- Oak Ridge National Laboratory
- Oak Ridge
- USA
- Department of Chemistry
| | - Simerjeet K Gill
- Nuclear Science and Technology Department
- Brookhaven National Lab
- USA
| | | | - Gihan Kwon
- National Synchrotron Light Source II (NSLS-II)
- Brookhaven National Lab
- USA
| | - Mehmet Topsakal
- Nuclear Science and Technology Department
- Brookhaven National Lab
- USA
| | - Bobby Layne
- Chemistry Division
- Brookhaven National Lab
- USA
| | | | - Yong Zhang
- Department of Chemical and Biomolecular Engineering
- University of Notre Dame
- USA
| | | | - Sheng Dai
- Chemical Sciences Division
- Oak Ridge National Laboratory
- Oak Ridge
- USA
- Department of Chemistry
| | | | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering
- University of Notre Dame
- USA
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45
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Zhang Y, Zhang Y, McCready MJ, Maginn EJ. Prediction of membrane separation efficiency for hydrophobic and hydrophilic proteins. J Mol Model 2019; 25:132. [DOI: 10.1007/s00894-019-3985-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 03/13/2019] [Indexed: 11/25/2022]
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46
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Affiliation(s)
- Michael T. Humbert
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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47
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Maginn EJ, Messerly RA, Carlson DJ, Roe DR, Elliott JR. Best Practices for Computing Transport Properties 1. Self-Diffusivity and Viscosity from Equilibrium Molecular Dynamics [Article v1.0]. ACTA ACUST UNITED AC 2019. [DOI: 10.33011/livecoms.1.1.6324] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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48
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Tow GM, Maginn EJ. Evaluating physical properties of the orthorhombic crystal phase of ammonium perchlorate using a Class II force field. J Chem Phys 2018; 149:244502. [DOI: 10.1063/1.5054758] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Garrett M. Tow
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
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49
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Huang Q, Lourenço TC, Costa LT, Zhang Y, Maginn EJ, Gurkan B. Solvation Structure and Dynamics of Li+ in Ternary Ionic Liquid–Lithium Salt Electrolytes. J Phys Chem B 2018; 123:516-527. [DOI: 10.1021/acs.jpcb.8b08859] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Qianwen Huang
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Tuanan C. Lourenço
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556-5637, United States
- Department of Physical Chemistry, Fluminense Federal University, Outeiro de São João Batista s/n, CEP 24020-141 Niterói, Rio de Janeiro, Brazil
| | - Luciano T. Costa
- Department of Physical Chemistry, Fluminense Federal University, Outeiro de São João Batista s/n, CEP 24020-141 Niterói, Rio de Janeiro, Brazil
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556-5637, United States
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556-5637, United States
| | - Burcu Gurkan
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
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50
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Rocha MA, Zhang Y, Maginn EJ, Shiflett MB. Simulation and measurement of water-induced liquid-liquid phase separation of imidazolium ionic liquid mixtures. J Chem Phys 2018; 149:164503. [DOI: 10.1063/1.5054786] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. Alejandra Rocha
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, USA
| | - Yong Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Edward J. Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Mark B. Shiflett
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, USA
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