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Shinohara T, Kisu K, Dorai A, Zushida K, Yabu H, Takagi S, Orimo SI. Complex Hydride-Based Gel Polymer Electrolytes for Rechargeable Ca-Metal Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2308318. [PMID: 38958510 DOI: 10.1002/advs.202308318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 06/03/2024] [Indexed: 07/04/2024]
Abstract
Rechargeable Ca batteries offer the advantages of high energy density, low cost, and earth-abundant constituents, presenting a viable alternative to lithium-ion batteries. However, using polymer electrolytes in practical Ca batteries is not often reported, despite its potential to prevent leakage and preserve battery flexibility. Herein, a Ca(BH4)2-based gel-polymer electrolyte (GPE) is prepared from Ca(BH4)2 and poly(tetrahydrofuran) (pTHF) and tested its performance in Ca batteries. The electrolyte demonstrates excellent stability against Ca-metal anodes and high ionic conductivity. The results of infrared spectroscopy and 1H and 11B NMR indicate that the terminal ─OH groups of pTHF reacted with BH4 - anions to form B─H─(pTHF)3 moieties, achieving cross-linking and solidification. Cyclic voltammetry measurements indicate the occurrence of reversible Ca plating/stripping. To improve the performance at high current densities, the GPE is supplemented with LiBH4 to achieve a lower overpotential in the Ca plating/stripping process. An all-solid-state Ca-metal battery with a dual-cation (Ca2+ and Li+) GPE, a Ca-metal anode, and a Li4Ti5O12 cathode sustained >200 cycles, confirming their feasibility. The results pave the way for further developing lithium salt-free Ca batteries by developing electrolyte salts with high oxidation stability and optimal electrochemical properties.
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Affiliation(s)
- Takara Shinohara
- Institute for Materials Research (IMR), Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
- Ichikawa Research Centre, Sumitomo Metal Mining Co. Ltd., Nakakokubun 3-18-5, Ichikawa, Chiba, 272-8588, Japan
| | - Kazuaki Kisu
- Institute for Materials Research (IMR), Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
- College of Engineering, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo, 135-8548, Japan
| | - Arunkumar Dorai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
| | - Kenji Zushida
- Institute for Materials Research (IMR), Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
| | - Hiroshi Yabu
- Advanced Institute for Materials Research (AIMR), Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
| | - Shigeyuki Takagi
- Institute for Materials Research (IMR), Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
| | - Shin-Ichi Orimo
- Institute for Materials Research (IMR), Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
- Advanced Institute for Materials Research (AIMR), Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
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Hou X, Zhang L, Gogoi N, Edström K, Berg EJ. Interfacial Chemistry in Aqueous Lithium-Ion Batteries: A Case Study of V 2O 5 in Dilute Aqueous Electrolytes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308577. [PMID: 38145960 DOI: 10.1002/smll.202308577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/23/2023] [Indexed: 12/27/2023]
Abstract
Aqueous lithium-ion batteries (ALIBs) are promising for large-scale energy storage systems because of the cost-effective, intrinsically safe, and environmentally friendly properties of aqueous electrolytes. Practical application is however impeded by interfacial side-reactions and the narrow electrochemical stability window (ESW) of aqueous electrolytes. Even though higher electrolyte salt concentrations (e.g., water-in-salt electrolyte) enhance performance by widening the ESW, the nature and extent of side-reaction processes are debated and more fundamental understanding thereof is needed. Herein, the interfacial chemistry of one of the most popular electrode materials, V2O5, for aqueous batteries is systematically explored by a unique set of operando analytical techniques. By monitoring electrode/electrolyte interphase deposition, electrolyte pH, and gas evolution, the highly dynamic formation/dissolution of V2O5/V2O4, Li2CO3 and LiF during dis-/charge is demonstrated and shown to be coupled with electrolyte decomposition and conductive carbon oxidation, regardless of electrolyte salt concentration. The study provides deeper understanding of interfacial chemistry of active materials under variable proton activity in aqueous electrolytes, hence guiding the design of more effective electrode/electrolyte interfaces for ALIBs and beyond.
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Affiliation(s)
- Xu Hou
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, 538, SE-751 21, Sweden
| | - Leiting Zhang
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, 538, SE-751 21, Sweden
| | - Neeha Gogoi
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, 538, SE-751 21, Sweden
| | - Kristina Edström
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, 538, SE-751 21, Sweden
| | - Erik J Berg
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, 538, SE-751 21, Sweden
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3
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Boukarkour Y, Reculusa S, Sojic N, Kuhn A, Salinas G. Wireless Light-Emitting Electrode Arrays for the Evaluation of Electrocatalytic Activity. Chemistry 2024; 30:e202400078. [PMID: 38470292 DOI: 10.1002/chem.202400078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 03/13/2024]
Abstract
Water splitting has become a sustainable and clean alternative for hydrogen production. Commonly, the efficiency of such reactions is intimately related to the physico-chemical properties of the catalysts that constitute the electrolyzer. Thus, the development of simple and fast methods to evaluate the electrocatalytic efficiency of an electrolyzer is highly required. In this work, we present an unconventional method based on the combination of bipolar electrochemistry and light-emitting diodes, which allows the evaluation of the electrocatalytic performance of the two types of catalysts, composing an electrolyzer, namely for oxygen and hydrogen evolution reactions, respectively. The integrated light emission of the diode acts as an optical readout of the electrocatalytic information, which simultaneously depends on the composition of the anode and the cathode. The electrocatalytic activity of Au, Pt, and Ni electrodes, connected to the LED in multiple anode/cathode configurations, towards the water splitting reactions has been evaluated. The efficiency of the electrolyzer can be represented in terms of the onset electric field (ϵonset) for light emission, obtaining variations that are in agreement with data reported with conventional electrochemistry. This work introduces a straightforward method for evaluating electrocatalysts and underscores the importance of material characterization in developing efficient electrolyzers for hydrogen production.
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Affiliation(s)
| | - Stephane Reculusa
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 33607, Pessac, France
| | - Neso Sojic
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 33607, Pessac, France
| | - Alexander Kuhn
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 33607, Pessac, France
| | - Gerardo Salinas
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 33607, Pessac, France
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4
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Brachi M, El Housseini W, Beaver K, Jadhav R, Dantanarayana A, Boucher DG, Minteer SD. Advanced Electroanalysis for Electrosynthesis. ACS ORGANIC & INORGANIC AU 2024; 4:141-187. [PMID: 38585515 PMCID: PMC10995937 DOI: 10.1021/acsorginorgau.3c00051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 04/09/2024]
Abstract
Electrosynthesis is a popular, environmentally friendly substitute for conventional organic methods. It involves using charge transfer to stimulate chemical reactions through the application of a potential or current between two electrodes. In addition to electrode materials and the type of reactor employed, the strategies for controlling potential and current have an impact on the yields, product distribution, and reaction mechanism. In this Review, recent advances related to electroanalysis applied in electrosynthesis were discussed. The first part of this study acts as a guide that emphasizes the foundations of electrosynthesis. These essentials include instrumentation, electrode selection, cell design, and electrosynthesis methodologies. Then, advances in electroanalytical techniques applied in organic, enzymatic, and microbial electrosynthesis are illustrated with specific cases studied in recent literature. To conclude, a discussion of future possibilities that intend to advance the academic and industrial areas is presented.
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Affiliation(s)
- Monica Brachi
- Department
of Chemistry, University of Utah, Salt Lake City, Utah 84112 United States
| | - Wassim El Housseini
- Department
of Chemistry, University of Utah, Salt Lake City, Utah 84112 United States
| | - Kevin Beaver
- Department
of Chemistry, University of Utah, Salt Lake City, Utah 84112 United States
| | - Rohit Jadhav
- Department
of Chemistry, University of Utah, Salt Lake City, Utah 84112 United States
| | - Ashwini Dantanarayana
- Department
of Chemistry, University of Utah, Salt Lake City, Utah 84112 United States
| | - Dylan G. Boucher
- Department
of Chemistry, University of Utah, Salt Lake City, Utah 84112 United States
| | - Shelley D. Minteer
- Department
of Chemistry, University of Utah, Salt Lake City, Utah 84112 United States
- Kummer
Institute Center for Resource Sustainability, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
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Siddiqui AR, N’Diaye J, Martin K, Baby A, Dawlaty J, Augustyn V, Rodríguez-López J. Monitoring SEIRAS on a Graphitic Electrode for Surface-Sensitive Electrochemistry: Real-Time Electrografting. Anal Chem 2024; 96:2435-2444. [PMID: 38294875 PMCID: PMC10868585 DOI: 10.1021/acs.analchem.3c04407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/22/2023] [Accepted: 01/09/2024] [Indexed: 02/01/2024]
Abstract
The ubiquity of graphitic materials in electrochemistry makes it highly desirable to probe their interfacial behavior under electrochemical control. Probing the dynamics of molecules at the electrode/electrolyte interface is possible through spectroelectrochemical approaches involving surface-enhanced infrared absorption spectroscopy (SEIRAS). Usually, this technique can only be done on plasmonic metals such as gold or carbon nanoribbons, but a more convenient substrate for carbon electrochemical studies is needed. Here, we expanded the scope of SEIRAS by introducing a robust hybrid graphene-on-gold substrate, where we monitored electrografting processes occurring at the graphene/electrolyte interface. These electrodes consist of graphene deposited onto a roughened gold-sputtered internal reflection element (IRE) for attenuated total reflectance (ATR) SEIRAS. The capabilities of the graphene-gold IRE were demonstrated by successfully monitoring the electrografting of 4-amino-2,2,6,6-tetramethyl-1-piperidine N-oxyl (4-amino-TEMPO) and 4-nitrobenzene diazonium (4-NBD) in real time. These grafts were characterized using cyclic voltammetry and ATR-SEIRAS, clearly showing the 1520 and 1350 cm-1 NO2 stretches for 4-NBD and the 1240 cm-1 C-C, C-C-H, and N-Ȯ stretch for 4-amino-TEMPO. Successful grafts on graphene did not show the SEIRAS effect, while grafting on gold was not stable for TEMPO and had poorer resolution than on graphene-gold for 4-NBD, highlighting the uniqueness of our approach. The graphene-gold IRE is proficient at resolving the spectral responses of redox transformations, unambiguously demonstrating the real-time detection of surface processes on a graphitic electrode. This work provides ample future directions for real-time spectroelectrochemical investigations of carbon electrodes used for sensing, energy storage, electrocatalysis, and environmental applications.
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Affiliation(s)
- Abdur-Rahman Siddiqui
- Department
of Chemistry, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Jeanne N’Diaye
- Department
of Chemistry, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States
- The
Beckman Institute for Advanced Science and Technology, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Kristin Martin
- Department
of Chemistry, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Aravind Baby
- Department
of Chemistry, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Jahan Dawlaty
- Department
of Chemistry, University of Southern California, Los Angeles, California 90007, United States
| | - Veronica Augustyn
- Department
of Material Science and Engineering, North
Carolina State University, Raleigh, North Carolina 27695, United States
| | - Joaquín Rodríguez-López
- Department
of Chemistry, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States
- The
Beckman Institute for Advanced Science and Technology, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States
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6
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Rabbani G, Khan ME, Khan AU, Ali SK, Zamzami MA, Ahmad A, Bashiri AH, Zakri W. Label-free and ultrasensitive electrochemical transferrin detection biosensor based on a glassy carbon electrode and gold nanoparticles. Int J Biol Macromol 2024; 256:128312. [PMID: 38000589 DOI: 10.1016/j.ijbiomac.2023.128312] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/19/2023] [Accepted: 11/19/2023] [Indexed: 11/26/2023]
Abstract
In this study, we developed a label-free and ultrasensitive electrochemical biosensor for the detection of transferrin (Tf), an important serum biomarker of atransferrinemia. The biosensor was fabricated by using glassy carbon electrode (GCE) and modified with gold nanoparticles (AuNPs) via electroless deposition. The electrochemical characteristics of the GCE-AuNPs biosensors were characterized using cyclic voltammetry and electrochemical impedance spectroscopy analysis. Differential pulse voltammetry was used for quantitative evaluation of the Tf-antigen by recording the increase in the anodic peak current of GCE-AuNPs biosensor. The GCE-AuNPs biosensor demonstrates superior sensing performance for Tf-antigen fortified in buffer, with a wide linear range of 0.1 to 5000 μg/mL and a limit of detection of 0.18 μg/mL. The studied GCE-AuNPs biosensor showed excellent sensitivity, selectivity, long-term storage stability and simple sensing steps without pretreatment of clinical samples. This GCE-AuNPs biosensor indicates great potential for developing a Tf detection platform, which would be helpful in the early diagnosis of atransferrinemia. The developed GCE-AuNPs biosensor holds great potential in biomedical research related to point of care for the early diagnosis and monitoring of diseases associated with aberrant serum transferrin levels. These findings suggest that the GCE-AuNPs biosensor has great potential for detecting other serum biomarkers.
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Affiliation(s)
- Gulam Rabbani
- IT-medical Fusion Center, 350-27 Gumidae-ro, Gumi-si, Gyeongbuk 39253, Republic of Korea
| | - Mohammad Ehtisham Khan
- Department of Chemical Engineering Technology, College of Applied Industrial Technology, Jazan University, 45142, Saudi Arabia.
| | - Anwar Ulla Khan
- Department of Electrical Engineering Technology, College of Applied Industrial Technology, Jazan University, 45142, Saudi Arabia
| | - Syed Kashif Ali
- Department of Chemistry, Faculty of Science, Jazan University, Jazan, PO Box 114, Saudi Arabia
| | - Mazin A Zamzami
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21452, Saudi Arabia
| | - Abrar Ahmad
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21452, Saudi Arabia
| | - Abdullateef H Bashiri
- Department of Mechanical Engineering, College of Engineering, Jazan University, P. O. Box 114, Jazan 45142, Saudi Arabia
| | - Waleed Zakri
- Department of Mechanical Engineering, College of Engineering, Jazan University, P. O. Box 114, Jazan 45142, Saudi Arabia
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7
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Phukhrongthung A, Iamprasertkun P, Bunpheng A, Saisopa T, Umpuch C, Puchongkawarin C, Sawangphruk M, Luanwuthi S. Oil palm leaf-derived hierarchical porous carbon for "water-in-salt" based supercapacitors: the effect of anions (Cl - and TFSI -) in superconcentrated conditions. RSC Adv 2023; 13:24432-24444. [PMID: 37593665 PMCID: PMC10427977 DOI: 10.1039/d3ra03152g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/09/2023] [Indexed: 08/19/2023] Open
Abstract
This study investigates the use of a hierarchical porous carbon electrode derived from oil palm leaves in a "water-in-salt" supercapacitor. The impact of anion identity on the electrical performance of the carbon electrode was also explored. The results show that the prepared carbon had a hierarchical porous structure with a high surface area of up to 1840 m2 g-1. When a 20 m LiTFSI electrolyte was used, the carbon electrode had a specific capacitance of 176 F g-1 with a wider potential window of about 2.6 V, whereas the use of a cheaper 20 m LiCl electrolyte showed a higher specific capacitance of 331 F g-1 due to the smaller size of the Cl- anion, which enabled inner capacitance. Therefore, the anion identity has an effect on the electrochemical performance of porous carbon, and this research contributes to the understanding of using "water-in-salt" electrolytes in carbon-based supercapacitors. The study's findings provide insights into developing low-cost, high-performance supercapacitors that can operate in a wider voltage range.
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Affiliation(s)
- Arisa Phukhrongthung
- Department of Industrial Engineering, Faculty of Engineering, Ubon Ratchathani University Ubon Ratchathani 34190 Thailand +66 935397469
| | - Pawin Iamprasertkun
- School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University Pathum Thani 12120 Thailand
| | - Aritsa Bunpheng
- School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University Pathum Thani 12120 Thailand
| | - Thanit Saisopa
- Department of Applied Physics, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan Nakhon Ratchasima 30000 Thailand
| | - Chakkrit Umpuch
- Department of Chemical Engineering, Faculty of Engineering, Ubon Ratchathani University Ubon Ratchathani 34190 Thailand
| | - Channarong Puchongkawarin
- Department of Chemical Engineering, Faculty of Engineering, Ubon Ratchathani University Ubon Ratchathani 34190 Thailand
| | - Montree Sawangphruk
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology Rayong 21210 Thailand
| | - Santamon Luanwuthi
- Department of Industrial Engineering, Faculty of Engineering, Ubon Ratchathani University Ubon Ratchathani 34190 Thailand +66 935397469
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8
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Paillot M, Wong A, Denisov SA, Soudan P, Poizot P, Montigny B, Mostafavi M, Gauthier M, Le Caër S. Predicting Degradation Mechanisms in Lithium Bistriflimide "Water-In-Salt" Electrolytes For Aqueous Batteries. CHEMSUSCHEM 2023:e202300692. [PMID: 37385952 DOI: 10.1002/cssc.202300692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/24/2023] [Accepted: 06/29/2023] [Indexed: 07/01/2023]
Abstract
Aqueous solutions are crucial to most domains in biology and chemistry, including in energy fields such as catalysis and batteries. Water-in-salt electrolytes (WISEs), which extend the stability of aqueous electrolytes in rechargeable batteries, are one example. While the hype for WISEs is huge, commercial WISE-based rechargeable batteries are still far from reality, and there remain several fundamental knowledge gaps such as those related to their long-term reactivity and stability. Here, we propose a comprehensive approach to accelerating the study of WISE reactivity by using radiolysis to exacerbate the degradation mechanisms of concentrated LiTFSI-based aqueous solutions. We find that the nature of the degradation species depends strongly on the molality of the electrolye, with degradation routes driven by the water or the anion at low or high molalities, respectively. The main aging products are consistent with those observed by electrochemical cycling, yet radiolysis also reveals minor degradation species, providing a unique glimpse of the long-term (un)stability of these electrolytes.
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Affiliation(s)
- Malaurie Paillot
- Université Paris-Saclay, CEA, CNRS, NIMBE, CEA Saclay, 91191, Gif sur Yvette Cedex, France
| | - Alan Wong
- Université Paris-Saclay, CEA, CNRS, NIMBE, CEA Saclay, 91191, Gif sur Yvette Cedex, France
| | - Sergey A Denisov
- Institut de Chimie Physique UMR8000, CNRS, Université Paris Saclay, Bâtiment 349, 91405, Orsay, France
| | - Patrick Soudan
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, Nantes, F-44000, France
| | - Philippe Poizot
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, Nantes, F-44000, France
| | - Benedicte Montigny
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (EA 6299), Université de Tours, Parc de Grandmont, 37200, France
| | - Mehran Mostafavi
- Institut de Chimie Physique UMR8000, CNRS, Université Paris Saclay, Bâtiment 349, 91405, Orsay, France
| | - Magali Gauthier
- Université Paris-Saclay, CEA, CNRS, NIMBE, CEA Saclay, 91191, Gif sur Yvette Cedex, France
| | - Sophie Le Caër
- Université Paris-Saclay, CEA, CNRS, NIMBE, CEA Saclay, 91191, Gif sur Yvette Cedex, France
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Gharouel S, Béguin F. Revisiting the performance of electrical double-layer capacitors implementing a sodium perchlorate water-in-salt electrolyte. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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10
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Wang F, Sun Y, Cheng J. Switching of Redox Levels Leads to High Reductive Stability in Water-in-Salt Electrolytes. J Am Chem Soc 2023; 145:4056-4064. [PMID: 36758145 DOI: 10.1021/jacs.2c11793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Developing nonflammable electrolytes with wide electrochemical windows is of great importance for energy storage devices. Water-in-salt electrolytes (WiSE) have attracted great interests due to their widely opened electrochemical windows and high stability. Previous theoretical investigations have revealed changes in solvation shell of water molecules result in opening of HOMO-LUMO gaps of water, leading to the formation of an anion-derived solid-electrolyte-interphase (SEI) in WiSE. However, how solvation structures affect electrochemical windows at atomic level is still a puzzle, which hinders optimization and design of aqueous electrolytes. Herein, machine learning molecular dynamics and free energy calculation method are applied to compute redox potentials of anions of Li-salts and water of aqueous electrolytes at a range of salt concentrations. Furthermore, an analysis based on local solvation structures is employed to demonstrate the structure-property relations. Our calculation shows that the hydrogen evolution reaction is impeded in WiSE due to switching of the order of redox levels of the anion and H2O, leading to formation of SEI and high reductive stability. Level switching is caused by the special solvation environments of isolated water molecules. Our work provides new insight into the electrochemistry of aqueous electrolytes which would benefit the electrolyte design in energy storage devices.
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Affiliation(s)
- Feng Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yan Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jun Cheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Tan Kah Kee Innovation Laboratory, Xiamen 361005, China
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11
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Carbon Inks-Based Screen-Printed Electrodes for Qualitative Analysis of Amino Acids. Int J Mol Sci 2023; 24:ijms24021129. [PMID: 36674641 PMCID: PMC9864027 DOI: 10.3390/ijms24021129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Due to the great significance of amino acids, a substantial number of research studies has been directed toward the development of effective and reliable platforms for their evaluation, detection, and identification. In order to support these studies, a new electrochemical platform based on PANI/ZnO nanowires' modified carbon inks screen-printed electrodes was developed for qualitative analysis of electroactive amino acids, with emphasis on tyrosine (Tyr) and tryptophan (Trp). A comparative investigation of the carbon ink before and after modification with the PANI/ZnO was performed by scanning electron microscopy and by Raman spectroscopy, confirming the presence of PANI and ZnO nanowires. Electrochemical investigations by cyclic voltammetry and electrochemical impedance spectroscopy have shown a higher charge-transfer rate constant, which is reflected into lower charge-transfer resistance and higher capacitance values for the PANI/ZnO modified ink when compared to the simple carbon screen-printed electrode. In order to demonstrate the electrochemical performances of the PANI/ZnO nanowires' modified carbon inks screen-printed electrodes for amino acids analysis, differential pulse voltammograms were obtained in individual and mixed solutions of electroactive amino acids. It has been shown that the PANI/ZnO nanowires' modified carbon inks screen-printed electrodes allowed for tyrosine and tryptophan a peak separation of more than 100 mV, enabling their screening and identification in mixed solutions, which is essential for the electrochemical analysis of proteins within the proteomics research field.
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12
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Mullen J, Li H, Atkin R, Silvester DS. Mixing Ionic Liquids Affects the Kinetics and Thermodynamics of the Oxygen/Superoxide Redox Couple in the Context of Oxygen Sensing. ACS PHYSICAL CHEMISTRY AU 2022; 2:515-526. [PMID: 36855608 PMCID: PMC9955187 DOI: 10.1021/acsphyschemau.2c00035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 11/28/2022]
Abstract
The electrochemical oxygen reduction reaction is vital for applications such as fuel cells, metal air batteries and for oxygen gas sensing. Oxygen undergoes a 1-electron reduction process in dry ionic liquids (ILs) to form the electrogenerated superoxide ion that is solvated and stabilized by IL cations. In this work, the oxygen/superoxide (O2/O2 •-) redox couple has been used to understand the effect of mixing ILs with different cations in the context of developing designer electrolytes for oxygen sensing, by employing cyclic voltammetry at both gold and platinum electrodes. Different cations with a range of sizes, geometries and aromatic/aliphatic character were studied with a common bis(trifluoromethylsulfonyl)imide ([NTf2]-) anion. Diethylmethylsulfonium ([S2,2,1]+), N-butyl-N-methylpyrrolidinum ([C4mpyrr]+) and tetradecyltrihexylphosphonium ([P14,6,6,6]+) cations were mixed with a common 1-butyl-3-methylimidazolium ([C4mim]+) cation at mole fractions (x) of [C4mim]+ of 0, 0.2, 0.4, 0.6, 0.8, and 1. Both the redox kinetics and thermodynamics were found to be highly dependent on the cation structure and the electrode material used. Large deviations from "ideal" mixtures were observed for mixtures of [C4mim][NTf2] with [C4mpyrr][NTf2] on gold electrodes, suggesting a much higher amount of [C4mim]+ ions near the electrode surface despite the large excess of [C4mpyrr]+ in the bulk. The electrical double layer structure was probed for a mixture of [C4mim]0.2[C4mpyrr]0.8[NTf2] using atomic force microscopy measurements on Au, revealing that the first layer was more like [C4mim][NTf2] than [C4mpyrr][NTf2]. Unusually fast kinetics for O2/O2 •- in mixtures of [C4mim]+ with [P14,6,6,6]+ were also observed in the electrochemistry results, which warrants further follow-up studies to elucidate this promising behavior. Overall, it is important to understand the effect on the kinetic and thermodynamic properties of electrochemical reactions when mixing solvents, to aid in the creation of designer electrolytes with favorable properties for their intended application.
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Affiliation(s)
- Jesse
W. Mullen
- School
of Molecular and Life Sciences, Curtin University, GPO Box U1987, Perth, Western
Australia 6845, Australia
| | - Hua Li
- School
of Molecular Sciences, The University of
Western Australia, Perth, Western Australia 6009, Australia,Centre
for Microscopy, Characterisation and Analysis, The University of Western Australia, Perth, Western Australia 6009, Australia
| | - Rob Atkin
- School
of Molecular Sciences, The University of
Western Australia, Perth, Western Australia 6009, Australia
| | - Debbie S. Silvester
- School
of Molecular and Life Sciences, Curtin University, GPO Box U1987, Perth, Western
Australia 6845, Australia,. Tel.: +61-08-9266-7148. Fax: +61-08-9266-2300
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13
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Zhou M, Bo Z, Ostrikov KK. Challenges and prospects of high-voltage aqueous electrolytes for energy storage applications. Phys Chem Chem Phys 2022; 24:20674-20688. [PMID: 36052687 DOI: 10.1039/d2cp02795j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aqueous electrolytes have attracted widespread attention as they are safe, environmentally benign and cost effective, holding great promise for future low-cost and sustainable energy storage devices. Nonetheless, the narrow electrochemical stability window caused by water electrolysis, as well as the trade-off between the stability window and other properties remain the bottleneck problem for the practical applications of aqueous electrolytes. Deep insights into the correlations between the microscopic physicochemical and electrochemical mechanisms and the macroscopic properties of aqueous electrolyte are essential for the envisaged applications, yet a systematic analysis of the recent progress in this area is still lacking. In this Perspective article, the basic mechanisms and influencing factors of water electrolysis including the hydrogen evolution and oxygen evolution reactions is critically examined. We systematically review the current state-of-the-art on high-voltage aqueous electrolytes focusing on the fundamental mechanisms of ion kinetics leading to dynamic electrolyte restructuring. Recent advances on the optimization of high-voltage aqueous electrolytes are also summarized. The existing challenges are identified and perspectives for exploring and developing future high-voltage aqueous electrolytes are provided.
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Affiliation(s)
- Meiqi Zhou
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang Province, 310027, P. R. China.
| | - Zheng Bo
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang Province, 310027, P. R. China.
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics, Centre for Materials Science, Centre for Clean Energy Technologies and Practices, Centre for Waste-free World, Queensland University of Technology, Brisbane, QLD 4000, Australia
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14
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Meslam M, Elzatahry AA, Youssry M. Promising aqueous dispersions of carbon black for semisolid flow battery application. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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15
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Jing C, Long Y. Observing electrochemistry on single plasmonic nanoparticles. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Chao Jing
- Department of Hydrogen Technique Chinese Academy of Sciences Shanghai Institute of Applied Physics Shanghai P. R. China
- School of Chemistry & Molecular Engineering East China University of Science and Technology Shanghai P. R. China
| | - Yi‐Tao Long
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University Nanjing P. R. China
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16
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Ng KL, Shu K, Azimi G. A Rechargeable Mg|O2 Battery. iScience 2022; 25:104711. [PMID: 35856026 PMCID: PMC9287604 DOI: 10.1016/j.isci.2022.104711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/31/2022] [Accepted: 06/28/2022] [Indexed: 11/30/2022] Open
Abstract
Rechargeable Mg|O2 batteries (RMOBs) offer several advantages over alkali metal-based battery systems owing to Mg’s ease of transport/storage in ambient environment, low cost originating from its high abundance, as well as the high theoretical specific energy of RMOBs. However, research on RMOBs has been stagnant for the past decade, largely owing to unacceptably poor electrochemical performance. Here, we present a RMOB that employs Mg anode, Mg((CF3SO2)2N)2-MgCl2 in diglyme (G2) electrolyte, and commercial Pt/C on carbon fiber paper (Pt/C@CFP) oxygen cathode. This battery demonstrates unparalleled improvement over existing RMOBs by rendering a discharge capacity over 1.6 mAh cm−2, achieving cycle lives up to 35 cycles with a cumulative energy density of ∼3.2 mWh cm−2 at room temperature. This RMOB system seeks to reignite the pursuit of novel electrochemical systems based on Mg-O2 chemistries. A rechargeable Mg|O2 battery with prolonged cycle life (∼35 cycles) is demonstrated Mg((CF3SO2)2N)2-MgCl2 in G2 enables reversible battery cycling O2 environment A multistep discharge product formation pathway is proposed MgO is identified as the main discharge product
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Affiliation(s)
- Kok Long Ng
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, ON M5S 3E4, Canada
| | - Kewei Shu
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - Gisele Azimi
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, ON M5S 3E4, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
- Corresponding author
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17
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Jürjo S, Oll O, Paiste P, Külaviir M, Zhao J, Lust E. Electrochemical co-reduction of praseodymium and bismuth from 1-butyl-1-methylpyrrolidinium bis(fluorosulfonyl)imide ionic liquid. Electrochem commun 2022. [DOI: 10.1016/j.elecom.2022.107285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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18
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Zhao J, Gorbatovski G, Oll O, Anderson E, Lust E. Influence of water on the electrochemical characteristics and nanostructure of Bi(hkl)│Ionic liquid interface. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Kondou S, Watanabe Y, Dokko K, Watanabe M, Ueno K. Electrochemical Pretreatment of Solid–Electrolyte Interphase Formation for Enhanced Li4Ti5O12 Anode Performance in a Molten Li–Ca Binary Salt Hydrate Electrolyte. ChemElectroChem 2022. [DOI: 10.1002/celc.202200061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shinji Kondou
- Yokohama National University: Yokohama Kokuritsu Daigaku Department of Chemistry and Life Science 79-5 Tokiwadai, Hodogaya-ku Yokohama JAPAN
| | - Yoshifumi Watanabe
- Yokohama National University: Yokohama Kokuritsu Daigaku Department of Chemistry and Life Science JAPAN
| | - Kaoru Dokko
- Yokohama National University: Yokohama Kokuritsu Daigaku Department of Chemistry and Life Science JAPAN
| | - Masayoshi Watanabe
- Yokohama National University: Yokohama Kokuritsu Daigaku Institute of Advanced Sciences JAPAN
| | - Kazuhide Ueno
- Yokohama National University: Yokohama Kokuritsu Daigaku 79-5 Tokiwadai, Hodogaya-ku Yokohama JAPAN
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20
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McKenzie ECR, Hosseini S, Petro AGC, Rudman KK, Gerroll BHR, Mubarak MS, Baker LA, Little RD. Versatile Tools for Understanding Electrosynthetic Mechanisms. Chem Rev 2021; 122:3292-3335. [PMID: 34919393 DOI: 10.1021/acs.chemrev.1c00471] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrosynthesis is a popular, green alternative to traditional organic methods. Understanding the mechanisms is not trivial yet is necessary to optimize reaction processes. To this end, a multitude of analytical tools is available to identify and quantitate reaction products and intermediates. The first portion of this review serves as a guide that underscores electrosynthesis fundamentals, including instrumentation, electrode selection, impacts of electrolyte and solvent, cell configuration, and methods of electrosynthesis. Next, the broad base of analytical techniques that aid in mechanism elucidation are covered in detail. These methods are divided into electrochemical, spectroscopic, chromatographic, microscopic, and computational. Technique selection is dependent on predicted reaction pathways and electrogenerated intermediates. Often, a combination of techniques must be utilized to ensure accuracy of the proposed model. To conclude, future prospects that aim to enhance the field are discussed.
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Affiliation(s)
- Eric C R McKenzie
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Seyyedamirhossein Hosseini
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Ana G Couto Petro
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Kelly K Rudman
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Benjamin H R Gerroll
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | | | - Lane A Baker
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - R Daniel Little
- Department of Chemistry, University of California Santa Barbara, Building 232, Santa Barbara, California 93106, United States
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21
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Ng MTK, Bell NL, Long DL, Cronin L. Facile and Reproducible Electrochemical Synthesis of the Giant Polyoxomolybdates. J Am Chem Soc 2021; 143:20059-20063. [PMID: 34812622 DOI: 10.1021/jacs.1c10198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Giant polyoxomolybdates are traditionally synthesized by chemical reduction of molybdate in aqueous solutions, generating complex nanostructures such as the highly symmetrical spherical {Mo102} and {Mo132}, ring-shaped {Mo154} and {Mo176}, and the gigantic protein sized {Mo368}, which combines both positive and negative curvature. These complex polyoxometalates are known to be highly sensitive to reaction conditions and are often difficult to reproduce, especially {Mo368}, which is often produced in yields far below 1%, meaning further investigation has always been limited. While the electrochemical properties of these materials have been studied, their electrochemical synthesis has not been explored. Herein, we demonstrate an alternative reliable synthetic method by means of electrochemistry. By using electrochemical synthesis, we have shown the synthesis of various reported polyoxomolybdates, along with some unreported structures with unique features that have yet to be reported by traditional synthetic methods. The six different giant polyoxomolybdates that were obtained via electrochemical synthesis range from the spherical {Mo102-xFex} and {Mo132} to the ring-shaped {Mo148} and {Mo154-x}, as well as the largest known polyoxometalate {Mo368}, with improved yield (up to 26.1% for {Mo368}), increased reproducibility, and shorter crystallization time compared to chemical reduction methods.
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Affiliation(s)
- Marcus Tze-Kiat Ng
- School of Chemistry, University of Glasgow, University Avenue, Glasgow, G12 8QQ, U.K
| | - Nicola L Bell
- School of Chemistry, University of Glasgow, University Avenue, Glasgow, G12 8QQ, U.K
| | - De-Liang Long
- School of Chemistry, University of Glasgow, University Avenue, Glasgow, G12 8QQ, U.K
| | - Leroy Cronin
- School of Chemistry, University of Glasgow, University Avenue, Glasgow, G12 8QQ, U.K
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22
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Zhang B, Wang L, Liu Y, Zhang Y, Zhang L, Shi Z. Can metallic lithium be electrochemically extracted from water, the universal solvent? J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Pameté Yambou E, Beguin F. Effect of salt concentration in aqueous LiTFSI electrolytes on the performance of carbon-based electrochemical capacitors. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138687] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Amiri M, Shul G, Donzel N, Bélanger D. Aqueous electrochemical energy storage system based on phenanthroline- and anthraquinone-modified carbon electrodes. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138862] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Mantel T, Jacki E, Ernst M. Electrosorptive removal of organic water constituents by positively charged electrically conductive UF membranes. WATER RESEARCH 2021; 201:117318. [PMID: 34134036 DOI: 10.1016/j.watres.2021.117318] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/24/2021] [Accepted: 05/27/2021] [Indexed: 06/12/2023]
Abstract
Negatively charged electrically conductive ultrafiltration (UF) membranes have been intensively investigated for fouling mitigation and rejection enhancement in recent years. This study reports the novel approach of applying positive charge (+2.5 V cell potential) to a conductive membrane to induce electrosorption of negatively charged substances onto the membrane. Subsequently, desorption of negatively charged substances is achieved by changing the potential periodically (e.g., after 30 min) to negative charge (-2.5 V cell potential). For this purpose, sputter deposition of ultra-thin gold layers (40 nm) is used to generate electrically conductive gold-polymer-gold flat sheet membranes by coating the active and the support layer of two commercial polymer UF membranes (polyethersulfone UP150, polyamide M5). When M5 membrane was charged positively during filtration (+2.5 V), Suwannee River NOM, Hohloh lake NOM, humic acid and Brilliant Blue ionic dye showed removal rates of 70 %, 75% and 93% and 99%, respectively. Whereas, when no potential was applied (0 V) removal rates were only 1 - 5 %. When a positive potential was applied to the active membrane layer and a negative potential was applied to the support layer (cell potential 2.5 V), a significant increase of flux with 25 L/(m² h) was observed due to the induction of electro-osmosis. Electrosorption was only observed for M5 membrane (ζ: +13 mV, pH 7) and not with UP150 membrane (ζ: -29 mV, pH 7). Due to a low current density of 1.1 A/m² at a flux of 100 L/(m² h), the additional energy consumption of electrosorption and desorption process was low with 0.03 kWh per m³ of permeate. This study delivered the proof of concept for the novel process of electrosorptive UF with energy consumption between microfiltration and ultrafiltration but NOM removal rates of nanofiltration membranes.
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Affiliation(s)
- Tomi Mantel
- Institute for Water Resources and Water Supply, Hamburg University of Technology, Am Schwarzenberg-Campus 3, 20173 Hamburg, Germany.
| | - Elena Jacki
- Institute for Water Resources and Water Supply, Hamburg University of Technology, Am Schwarzenberg-Campus 3, 20173 Hamburg, Germany
| | - Mathias Ernst
- Institute for Water Resources and Water Supply, Hamburg University of Technology, Am Schwarzenberg-Campus 3, 20173 Hamburg, Germany
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26
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Watanabe H, Arai N, Nozaki E, Han J, Fujii K, Ikeda K, Otomo T, Ueno K, Dokko K, Watanabe M, Kameda Y, Umebayashi Y. Local Structure of Li + in Superconcentrated Aqueous LiTFSA Solutions. J Phys Chem B 2021; 125:7477-7484. [PMID: 34196549 DOI: 10.1021/acs.jpcb.1c04693] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
It has been reported that aqueous lithium ion batteries (ALIBs) can operate beyond the electrochemical window of water by using a superconcentrated electrolyte aqueous solution. The liquid structure, particularly the local structure of the Li+, which is rather different from conventional dilute solution, plays a crucial role in realizing the ALIB. To reveal the local structure around Li+, the superconcentrated LiTFSA (TFSA: bis(trifluoromethylsulfonil)amide) aqueous solutions were investigated by means of Raman spectroscopic experiments, high-energy X-ray total scattering measurements, and the neutron diffraction technique with different isotopic composition ratios of 6Li/7Li and H/D. The Li+ local structure changes with the increase of the LiTFSA concentration; the oligomer ([Lip(TFSA)q](p-q)+ (q > 2) forms at the molar fraction of LiTFSA (xLiTFSA) > 0.25. The average structure can be determined in which two water molecules and two oxygen atoms of TFSA anion(s) coordinate to the Li+ in the superconcentrated LiTFSA aqueous solution (LiTFSA)0.25(H2O)0.75. In addition, the intermolecular interaction between the neighboring water molecules was not found, and the hydrogen-bonded interaction in the solution should be significantly weak. According to the coordination number of the oxygen atom (TFSA or H2O), a variety of TFSA- and H2O coordination manners would exist in this solution; in particular, the oligomer is formed in which the monodentate TFSA cross-links Li+.
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Affiliation(s)
- Hikari Watanabe
- Graduate School of Science and Technology, Niigata University, 8050 Ikarashi, 2-no-cho, Nishi-ku, Niigata City 950-2181, Japan
| | - Nana Arai
- Graduate School of Science and Technology, Niigata University, 8050 Ikarashi, 2-no-cho, Nishi-ku, Niigata City 950-2181, Japan
| | - Erika Nozaki
- Graduate School of Science and Technology, Niigata University, 8050 Ikarashi, 2-no-cho, Nishi-ku, Niigata City 950-2181, Japan
| | - Jihae Han
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Kenta Fujii
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Kazutaka Ikeda
- Institute of Materials Structure Science, KEK, Tsukuba 305-0801, Japan
| | - Toshiya Otomo
- Institute of Materials Structure Science, KEK, Tsukuba 305-0801, Japan
| | | | | | | | - Yasuo Kameda
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University, 1-4-12, Kojirakawa-machi, Yamagata City, Yamagata 990-8560, Japan
| | - Yasuhiro Umebayashi
- Graduate School of Science and Technology, Niigata University, 8050 Ikarashi, 2-no-cho, Nishi-ku, Niigata City 950-2181, Japan
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27
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Amiri M, Bélanger D. Physicochemical and Electrochemical Properties of Water-in-Salt Electrolytes. CHEMSUSCHEM 2021; 14:2487-2500. [PMID: 33973406 DOI: 10.1002/cssc.202100550] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/19/2021] [Indexed: 06/12/2023]
Abstract
Aqueous electrolytes are attractive for applications in electrochemical technologies due to features like being eco-friendly, cost effective, and non-flammable. Very recently, superconcentrated aqueous electrolytes, such as so-called water-in-salt, water-in-bisalt, and hydrate melt, have received a significant attention for electrochemical energy storage due to enhanced stability and much wider electrochemical stability window. This Review focuses on the physicochemical properties of the highly concentrated electrolytes that are derived from several analysis techniques and simulation. A summary of most common features such as ions-water interactions, structure of species present in the electrolyte, conductivity, and viscosity of the electrolytes found in the literature are presented as well. In addition, this Review explains how these characteristics affect the electrochemical behavior of the electrolyte such as double layer structure and electrode/electrolyte interface leading to enhanced electrochemical stability of aqueous electrolytes.
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Affiliation(s)
- Mona Amiri
- Département de Chimie, Université du Québec à Montréal, Case Postale 8888, succursale Centre-Ville, Montréal, Québec, H3C 3P8, Canada
| | - Daniel Bélanger
- Département de Chimie, Université du Québec à Montréal, Case Postale 8888, succursale Centre-Ville, Montréal, Québec, H3C 3P8, Canada
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28
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Becker M, Rentsch D, Reber D, Aribia A, Battaglia C, Kühnel R. The Hydrotropic Effect of Ionic Liquids in Water‐in‐Salt Electrolytes**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maximilian Becker
- Empa Swiss Federal Laboratories for Materials Science and Technology 8600 Dübendorf Switzerland
- Department of Materials ETH Zurich 8093 Zurich Switzerland
| | - Daniel Rentsch
- Empa Swiss Federal Laboratories for Materials Science and Technology 8600 Dübendorf Switzerland
| | - David Reber
- Empa Swiss Federal Laboratories for Materials Science and Technology 8600 Dübendorf Switzerland
| | - Abdessalem Aribia
- Empa Swiss Federal Laboratories for Materials Science and Technology 8600 Dübendorf Switzerland
- Department of Materials ETH Zurich 8093 Zurich Switzerland
| | - Corsin Battaglia
- Empa Swiss Federal Laboratories for Materials Science and Technology 8600 Dübendorf Switzerland
| | - Ruben‐Simon Kühnel
- Empa Swiss Federal Laboratories for Materials Science and Technology 8600 Dübendorf Switzerland
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29
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Becker M, Rentsch D, Reber D, Aribia A, Battaglia C, Kühnel RS. The Hydrotropic Effect of Ionic Liquids in Water-in-Salt Electrolytes*. Angew Chem Int Ed Engl 2021; 60:14100-14108. [PMID: 33786945 DOI: 10.1002/anie.202103375] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Indexed: 11/11/2022]
Abstract
Water-in-salt electrolytes have successfully expanded the electrochemical stability window of aqueous electrolytes beyond 2 V. Further improvements in stability can be achieved by partially substituting water with either classical organic solvents or ionic liquids. Here, we study ternary electrolytes composed of LiTFSI, water, and imidazolium ionic liquids. We find that the LiTFSI solubility strongly increases from 21 mol kg-1 in water to up to 60 mol kg-1 in the presence of ionic liquid. The solution structure is investigated with Raman and NMR spectroscopy and the enhanced LiTFSI solubility is found to originate from a hydrotropic effect of the ionic liquids. The increased reductive stability of the ternary electrolytes enables stable cycling of an aqueous lithium-ion battery with an energy density of 150 Wh kg-1 on the active material level based on commercially relevant Li4 Ti5 O12 and LiNi0.8 Mn0.1 Co0.1 O2 electrode materials.
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Affiliation(s)
- Maximilian Becker
- Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland.,Department of Materials, ETH Zurich, 8093, Zurich, Switzerland
| | - Daniel Rentsch
- Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland
| | - David Reber
- Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland
| | - Abdessalem Aribia
- Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland.,Department of Materials, ETH Zurich, 8093, Zurich, Switzerland
| | - Corsin Battaglia
- Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland
| | - Ruben-Simon Kühnel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland
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30
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Dhattarwal HS, Remsing RC, Kashyap HK. Intercalation-deintercalation of water-in-salt electrolytes in nanoscale hydrophobic confinement. NANOSCALE 2021; 13:4195-4205. [PMID: 33586725 DOI: 10.1039/d0nr08163a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Intercalation-deintercalation of water-in-salt (WIS) electrolytes in nanoscale confinement is an important phenomenon relevant to energy storage and self-assembly applications. In this article, we use molecular simulations to investigate the effects of intersurface separation on the structure and free energy underlying the intercalation-deintercalation of the Li bis(trifluoromethane)sulfonimide ([Li][TFSI]) water-in-salt (WIS) electrolyte confined between nanoscale hydrophobic surfaces. We employ enhanced sampling to estimate the free energy profiles for the intercalation behaviour of WIS in confining sheets at several intersurface separations. We observe that the relative stability of the condensed and vapour phases of WIS in the confinement depends on the separation between the confining surfaces and the WIS concentration. We find that the critical separation at which the condensed and vapour phases are equally stable in confinement depends on the concentration of WIS. The relative height of the free energy barrier also strongly depends on the concentration of [Li][TFSI] inside the confined space, and we find that this concentration dependence can be attributed to changes in line tension. The process of deintercalation passes through vapour tube formation inside the confined space, and this process is initiated by vapour bubble formation. The size of the critical vapour tube required for spontaneous evaporation of WIS from the confinement is also found to depend on the intersurface separation and WIS concentration.
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Affiliation(s)
- Harender S Dhattarwal
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Richard C Remsing
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA
| | - Hemant K Kashyap
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
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Tan C, Robbins EM, Wu B, Cui XT. Recent Advances in In Vivo Neurochemical Monitoring. MICROMACHINES 2021; 12:208. [PMID: 33670703 PMCID: PMC7922317 DOI: 10.3390/mi12020208] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/11/2021] [Accepted: 02/14/2021] [Indexed: 12/20/2022]
Abstract
The brain is a complex network that accounts for only 5% of human mass but consumes 20% of our energy. Uncovering the mysteries of the brain's functions in motion, memory, learning, behavior, and mental health remains a hot but challenging topic. Neurochemicals in the brain, such as neurotransmitters, neuromodulators, gliotransmitters, hormones, and metabolism substrates and products, play vital roles in mediating and modulating normal brain function, and their abnormal release or imbalanced concentrations can cause various diseases, such as epilepsy, Alzheimer's disease, and Parkinson's disease. A wide range of techniques have been used to probe the concentrations of neurochemicals under normal, stimulated, diseased, and drug-induced conditions in order to understand the neurochemistry of drug mechanisms and develop diagnostic tools or therapies. Recent advancements in detection methods, device fabrication, and new materials have resulted in the development of neurochemical sensors with improved performance. However, direct in vivo measurements require a robust sensor that is highly sensitive and selective with minimal fouling and reduced inflammatory foreign body responses. Here, we review recent advances in neurochemical sensor development for in vivo studies, with a focus on electrochemical and optical probes. Other alternative methods are also compared. We discuss in detail the in vivo challenges for these methods and provide an outlook for future directions.
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Affiliation(s)
- Chao Tan
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA; (C.T.); (E.M.R.); (B.W.)
| | - Elaine M. Robbins
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA; (C.T.); (E.M.R.); (B.W.)
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Bingchen Wu
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA; (C.T.); (E.M.R.); (B.W.)
- Center for Neural Basis of Cognition, Pittsburgh, PA 15213, USA
| | - Xinyan Tracy Cui
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA; (C.T.); (E.M.R.); (B.W.)
- Center for Neural Basis of Cognition, Pittsburgh, PA 15213, USA
- McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15219, USA
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Serva A, Dubouis N, Grimaud A, Salanne M. Confining Water in Ionic and Organic Solvents to Tune Its Adsorption and Reactivity at Electrified Interfaces. Acc Chem Res 2021; 54:1034-1042. [PMID: 33530686 PMCID: PMC7944480 DOI: 10.1021/acs.accounts.0c00795] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Indexed: 12/17/2022]
Abstract
ConspectusThe recent discovery of "water-in-salt" electrolytes has spurred a rebirth of research on aqueous batteries. Most of the attention has been focused on the formulation of salts enabling the electrochemical window to be expanded as much as possible, well beyond the 1.23 V allowed by thermodynamics in water. This approach has led to critical successes, with devices operating at voltages of up to 4 V. These efforts were accompanied by fundamental studies aiming at understanding water speciation and its link with the bulk and interfacial properties of water-in-salt electrolytes. This speciation was found to differ markedly from that in conventional aqueous solutions since most water molecules are involved in the solvation of the cationic species (in general Li+) and thus cannot form their usual hydrogen-bonding network. Instead, it is the anions that tend to self-aggregate in nanodomains and dictate the interfacial and transport properties of the electrolyte. This particular speciation drastically alters the presence and reactivity of the water molecules at electrified interfaces, which enlarges the electrochemical windows of these aqueous electrolytes.Thanks to this fundamental understanding, a second very active lead was recently followed, which consists of using a scarce amount of water in nonaqueous electrolytes in order to control the interfacial properties. Following this path, it was proposed to use an organic solvent such as acetonitrile as a confinement matrix for water. Tuning the salt/water ratio in such systems leads to a whole family of systems that can be used to determine the reactivity of water and control the potential at which the hydrogen evolution reaction occurs. Put together, all of these efforts allow a shift of our view of the water molecule from a passive solvent to a reactant involved in many distinct fields ranging from electrochemical energy storage to (electro)catalysis.Combining spectroscopic and electrochemical techniques with molecular dynamics simulations, we have observed very interesting chemical phenomena such as immiscibility between two aqueous phases, specific adsorption properties of water molecules that strongly affect their reactivity, and complex diffusive mechanisms due to the formation of anionic and aqueous nanodomains.
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Affiliation(s)
- Alessandra Serva
- Sorbonne
Université, CNRS, Physico-chimie des Electrolytes et Nanosystémes
Interfaciaux, PHENIX, F-75005 Paris, France
- Réseau
sur le Stockage Electrochimique de l’Energie (RS2E), Amiens, France
| | - Nicolas Dubouis
- Chimie
du Solide et de l’Energie, Collège
de France, 11 Place Marcelin Berthelot, 75231 Paris, France
- Sorbonne
Université, Paris, France
- Réseau
sur le Stockage Electrochimique de l’Energie (RS2E), Amiens, France
| | - Alexis Grimaud
- Sorbonne
Université, Paris, France
- Chimie
du Solide et de l’Energie, Collège
de France, Paris, France
- Réseau
sur le Stockage Electrochimique de l’Energie (RS2E), Amiens, France
| | - Mathieu Salanne
- Sorbonne
Université, CNRS, Physico-chimie des Electrolytes et Nanosystémes
Interfaciaux, PHENIX, F-75005 Paris, France
- Institut
Universitaire de France (IUF), 75231 Paris Cedex 05, France
- Réseau
sur le Stockage Electrochimique de l’Energie (RS2E), Amiens, France
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Electrically conducting duplex-coated gold-PES-UF membrane for capacitive organic fouling mitigation and rejection enhancement. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118831] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Nian Z, Zhang J, Du Y, Jiang Z, Chen Z, Li Y, Han C, He Z, Meng W, Dai L, Wang L. Chlorine doping enables NaTi2(PO4)3/C excellent lithium ion storage performance in aqueous lithium ion batteries. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Turguła A, Graś M, Gabryelczyk A, Lota G, Pernak J. Long-Chain Ionic Liquids Based on Monoquaternary DABCO Cations and TFSI Anions: Towards Stable Electrolytes for Electrochemical Capacitors. Chempluschem 2020; 85:2679-2688. [PMID: 33326698 DOI: 10.1002/cplu.202000680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/03/2020] [Indexed: 02/02/2023]
Abstract
The desirable properties of ionic liquids (ILs) enable their use in various branches of chemistry, through a wide range of applications, e. g. as organic electrolytes. In the present study, an efficient two-step method was developed for the synthesis of long-chain ionic liquids with alkyl derivatives of DABCO as cations and bis(trifluoromethane)sulfonimide as anions. ILs obtained with high yields (≥91 %) were solids with melting points that increased with the rise in the number of carbon atoms of the alkyl substituent in the bicyclic cation. The structure of the compounds was confirmed by spectroscopic methods and elemental analysis. All compounds were soluble in the main solvents except water and hexane. The solubility in organic solvents such as acetonitrile allowed the use of synthesized ILs in electrochemical capacitors. Electrochemical tests revealed that the ILs enhanced the conductivity of organic electrolytes. This phenomenon improved the cyclability and reduced the internal resistance of the electrochemical capacitors.
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Affiliation(s)
- Anna Turguła
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
| | - Małgorzata Graś
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
| | - Agnieszka Gabryelczyk
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
| | - Grzegorz Lota
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
| | - Juliusz Pernak
- Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
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Steinrück H, Cao C, Lukatskaya MR, Takacs CJ, Wan G, Mackanic DG, Tsao Y, Zhao J, Helms BA, Xu K, Borodin O, Wishart JF, Toney MF. Interfacial Speciation Determines Interfacial Chemistry: X-ray-Induced Lithium Fluoride Formation from Water-in-salt Electrolytes on Solid Surfaces. Angew Chem Int Ed Engl 2020; 59:23180-23187. [PMID: 32881197 PMCID: PMC7756515 DOI: 10.1002/anie.202007745] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Indexed: 11/17/2022]
Abstract
Super-concentrated "water-in-salt" electrolytes recently spurred resurgent interest for high energy density aqueous lithium-ion batteries. Thermodynamic stabilization at high concentrations and kinetic barriers towards interfacial water electrolysis significantly expand the electrochemical stability window, facilitating high voltage aqueous cells. Herein we investigated LiTFSI/H2 O electrolyte interfacial decomposition pathways in the "water-in-salt" and "salt-in-water" regimes using synchrotron X-rays, which produce electrons at the solid/electrolyte interface to mimic reductive environments, and simultaneously probe the structure of surface films using X-ray diffraction. We observed the surface-reduction of TFSI- at super-concentration, leading to lithium fluoride interphase formation, while precipitation of the lithium hydroxide was not observed. The mechanism behind this photoelectron-induced reduction was revealed to be concentration-dependent interfacial chemistry that only occurs among closely contact ion-pairs, which constitutes the rationale behind the "water-in-salt" concept.
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Grants
- Joint Center for Energy Storage Research (JCESR).
- DE-SC0012704 Chemical Sciences, Geosciences, and Biosciences Division
- ECCS-1542152 National Science Foundation
- DE-AC02-76SF00515 U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences
- DE-AC02-05CH11231 Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy
- ECCS-2026822 National Science Foundation
- SN2020957 Joint Center for Energy Storage Research (JCESR) / ARL
- Chemical Sciences, Geosciences, and Biosciences Division
- National Science Foundation
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences
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Affiliation(s)
- Hans‐Georg Steinrück
- SSRL Materials Science DivisionSLAC National Accelerator LaboratoryMenlo ParkCA94025USA
- SLAC National Accelerator LaboratoryJoint Center for Energy Storage Research (JCESR)LemontIL60439USA
- Department ChemieUniversität Paderborn33098PaderbornGermany
| | - Chuntian Cao
- SSRL Materials Science DivisionSLAC National Accelerator LaboratoryMenlo ParkCA94025USA
| | - Maria R. Lukatskaya
- SSRL Materials Science DivisionSLAC National Accelerator LaboratoryMenlo ParkCA94025USA
- SLAC National Accelerator LaboratoryJoint Center for Energy Storage Research (JCESR)LemontIL60439USA
- Laboratory for Electrochemical Energy SystemsDepartment of Mechanical and Process EngineeringETH Zürich8092ZürichSwitzerland
| | - Christopher J. Takacs
- SSRL Materials Science DivisionSLAC National Accelerator LaboratoryMenlo ParkCA94025USA
- SLAC National Accelerator LaboratoryJoint Center for Energy Storage Research (JCESR)LemontIL60439USA
| | - Gang Wan
- SSRL Materials Science DivisionSLAC National Accelerator LaboratoryMenlo ParkCA94025USA
| | | | - Yuchi Tsao
- Department of ChemistryStanford UniversityStanfordUSA
| | - Jingbo Zhao
- Joint Center for Energy Storage ResearchLawrence Berkeley National LaboratoryBerkeleyCA94720USA
| | - Brett A. Helms
- Joint Center for Energy Storage ResearchLawrence Berkeley National LaboratoryBerkeleyCA94720USA
- The Molecular FoundryLawrence Berkeley National LaboratoryBerkeleyCA94720USA
| | - Kang Xu
- Energy Storage BranchSensor and Electron Devices DirectorateU.S. Army Research LaboratoryAdelphi20783USA
| | - Oleg Borodin
- Energy Storage BranchSensor and Electron Devices DirectorateU.S. Army Research LaboratoryAdelphi20783USA
| | | | - Michael F. Toney
- SSRL Materials Science DivisionSLAC National Accelerator LaboratoryMenlo ParkCA94025USA
- SLAC National Accelerator LaboratoryJoint Center for Energy Storage Research (JCESR)LemontIL60439USA
- Department of Chemical and Biological EngineeringUniversity of ColoradoBoulderCO80309USA
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Steinrück H, Cao C, Lukatskaya MR, Takacs CJ, Wan G, Mackanic DG, Tsao Y, Zhao J, Helms BA, Xu K, Borodin O, Wishart JF, Toney MF. Interfacial Speciation Determines Interfacial Chemistry: X‐ray‐Induced Lithium Fluoride Formation from Water‐in‐salt Electrolytes on Solid Surfaces. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007745] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Hans‐Georg Steinrück
- SSRL Materials Science Division SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
- SLAC National Accelerator Laboratory Joint Center for Energy Storage Research (JCESR) Lemont IL 60439 USA
- Department Chemie Universität Paderborn 33098 Paderborn Germany
| | - Chuntian Cao
- SSRL Materials Science Division SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
| | - Maria R. Lukatskaya
- SSRL Materials Science Division SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
- SLAC National Accelerator Laboratory Joint Center for Energy Storage Research (JCESR) Lemont IL 60439 USA
- Laboratory for Electrochemical Energy Systems Department of Mechanical and Process Engineering ETH Zürich 8092 Zürich Switzerland
| | - Christopher J. Takacs
- SSRL Materials Science Division SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
- SLAC National Accelerator Laboratory Joint Center for Energy Storage Research (JCESR) Lemont IL 60439 USA
| | - Gang Wan
- SSRL Materials Science Division SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
| | | | - Yuchi Tsao
- Department of Chemistry Stanford University Stanford USA
| | - Jingbo Zhao
- Joint Center for Energy Storage Research Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Brett A. Helms
- Joint Center for Energy Storage Research Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Kang Xu
- Energy Storage Branch Sensor and Electron Devices Directorate U.S. Army Research Laboratory Adelphi 20783 USA
| | - Oleg Borodin
- Energy Storage Branch Sensor and Electron Devices Directorate U.S. Army Research Laboratory Adelphi 20783 USA
| | - James F. Wishart
- Chemistry Division Brookhaven National Laboratory Upton NY 11973 USA
| | - Michael F. Toney
- SSRL Materials Science Division SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
- SLAC National Accelerator Laboratory Joint Center for Energy Storage Research (JCESR) Lemont IL 60439 USA
- Department of Chemical and Biological Engineering University of Colorado Boulder CO 80309 USA
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Bouchal R, Li Z, Bongu C, Le Vot S, Berthelot R, Rotenberg B, Favier F, Freunberger SA, Salanne M, Fontaine O. Competitive Salt Precipitation/Dissolution During Free-Water Reduction in Water-in-Salt Electrolyte. Angew Chem Int Ed Engl 2020; 59:15913-15917. [PMID: 32390281 PMCID: PMC7540070 DOI: 10.1002/anie.202005378] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Indexed: 11/19/2022]
Abstract
Water-in-salt electrolytes based on highly concentrated bis(trifluoromethyl)sulfonimide (TFSI) promise aqueous electrolytes with stabilities nearing 3 V. However, especially with an electrode approaching the cathodic (reductive) stability, cycling stability is insufficient. While stability critically relies on a solid electrolyte interphase (SEI), the mechanism behind the cathodic stability limit remains unclear. Now, two distinct reduction potentials are revealed for the chemical environments of free and bound water and that both contribute to SEI formation. Free water is reduced about 1 V above bound water in a hydrogen evolution reaction (HER) and is responsible for SEI formation via reactive intermediates of the HER; concurrent LiTFSI precipitation/dissolution establishes a dynamic interface. The free-water population emerges, therefore, as the handle to extend the cathodic limit of aqueous electrolytes and the battery cycling stability.
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Affiliation(s)
- Roza Bouchal
- ICGMUniv. Montpellier, CNRSMontpellierFrance
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS FR345933 rue Saint Leu80039Amiens CedexFrance
| | - Zhujie Li
- Sorbonne University, vUPMC Univ. Paris 06CNRS, Laboratoire PHENIX75005ParisFrance
- Maison de la SimulationCEA, University Paris-Saclay91191Gif-sur-YvetteFrance
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS FR345933 rue Saint Leu80039Amiens CedexFrance
| | - Chandra Bongu
- ICGMUniv. Montpellier, CNRSMontpellierFrance
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS FR345933 rue Saint Leu80039Amiens CedexFrance
| | - Steven Le Vot
- ICGMUniv. Montpellier, CNRSMontpellierFrance
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS FR345933 rue Saint Leu80039Amiens CedexFrance
| | - Romain Berthelot
- ICGMUniv. Montpellier, CNRSMontpellierFrance
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS FR345933 rue Saint Leu80039Amiens CedexFrance
| | - Benjamin Rotenberg
- Sorbonne University, vUPMC Univ. Paris 06CNRS, Laboratoire PHENIX75005ParisFrance
- Maison de la SimulationCEA, University Paris-Saclay91191Gif-sur-YvetteFrance
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS FR345933 rue Saint Leu80039Amiens CedexFrance
| | - Frederic Favier
- ICGMUniv. Montpellier, CNRSMontpellierFrance
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS FR345933 rue Saint Leu80039Amiens CedexFrance
| | - Stefan A. Freunberger
- Institute for Chemistry and Technology of Materials GrazStremayrgasse 98010GrazAustria
- IST Austria (Institute of Science and Technology Austria)Am Campus 13400KlosterneuburgAustria
| | - Mathieu Salanne
- Sorbonne University, vUPMC Univ. Paris 06CNRS, Laboratoire PHENIX75005ParisFrance
- Maison de la SimulationCEA, University Paris-Saclay91191Gif-sur-YvetteFrance
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS FR345933 rue Saint Leu80039Amiens CedexFrance
| | - Olivier Fontaine
- ICGMUniv. Montpellier, CNRSMontpellierFrance
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS FR345933 rue Saint Leu80039Amiens CedexFrance
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Rudolph M, Schneider S, Fischer C, Terfort A. Simple electrochemical method for the quantification of chlorite in aqueous and non-aqueous media. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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40
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Bouchal R, Li Z, Bongu C, Le Vot S, Berthelot R, Rotenberg B, Favier F, Freunberger SA, Salanne M, Fontaine O. Competitive Salt Precipitation/Dissolution During Free‐Water Reduction in Water‐in‐Salt Electrolyte. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005378] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Roza Bouchal
- ICGM Univ. Montpellier, CNRS Montpellier France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR3459 33 rue Saint Leu 80039 Amiens Cedex France
| | - Zhujie Li
- Sorbonne University, vUPMC Univ. Paris 06 CNRS, Laboratoire PHENIX 75005 Paris France
- Maison de la Simulation CEA, University Paris-Saclay 91191 Gif-sur-Yvette France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR3459 33 rue Saint Leu 80039 Amiens Cedex France
| | - Chandra Bongu
- ICGM Univ. Montpellier, CNRS Montpellier France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR3459 33 rue Saint Leu 80039 Amiens Cedex France
| | - Steven Le Vot
- ICGM Univ. Montpellier, CNRS Montpellier France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR3459 33 rue Saint Leu 80039 Amiens Cedex France
| | - Romain Berthelot
- ICGM Univ. Montpellier, CNRS Montpellier France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR3459 33 rue Saint Leu 80039 Amiens Cedex France
| | - Benjamin Rotenberg
- Sorbonne University, vUPMC Univ. Paris 06 CNRS, Laboratoire PHENIX 75005 Paris France
- Maison de la Simulation CEA, University Paris-Saclay 91191 Gif-sur-Yvette France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR3459 33 rue Saint Leu 80039 Amiens Cedex France
| | - Frederic Favier
- ICGM Univ. Montpellier, CNRS Montpellier France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR3459 33 rue Saint Leu 80039 Amiens Cedex France
| | - Stefan A. Freunberger
- Institute for Chemistry and Technology of Materials Graz Stremayrgasse 9 8010 Graz Austria
- IST Austria (Institute of Science and Technology Austria) Am Campus 1 3400 Klosterneuburg Austria
| | - Mathieu Salanne
- Sorbonne University, vUPMC Univ. Paris 06 CNRS, Laboratoire PHENIX 75005 Paris France
- Maison de la Simulation CEA, University Paris-Saclay 91191 Gif-sur-Yvette France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR3459 33 rue Saint Leu 80039 Amiens Cedex France
| | - Olivier Fontaine
- ICGM Univ. Montpellier, CNRS Montpellier France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR3459 33 rue Saint Leu 80039 Amiens Cedex France
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Paixão TRLC. Measuring Electrochemical Surface Area of Nanomaterials versus the Randles−Ševčík Equation. ChemElectroChem 2020. [DOI: 10.1002/celc.202000633] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Thiago R. L. C. Paixão
- Departamento de Química Fundamental Instituto de QuímicaUniversidade de São Paulo São Paulo SP, 05508-000 Brazil
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica Campinas SP, 13084-971 Brazil
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42
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Chen M, Feng G, Qiao R. Water-in-salt electrolytes: An interfacial perspective. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2019.12.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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De S, White J, Brusuelas T, Patton C, Koh A, Huang Q. Electrochemical behavior of protons and cupric ions in water in salt electrolytes with alkaline metal chloride. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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44
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De S, Sides W, Brusuelas T, Huang Q. Electrodeposition of superconducting rhenium-cobalt alloys from water-in-salt electrolytes. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Interfacial aspects induced by saturated aqueous electrolytes in electrochemical capacitor applications. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135572] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Liu Z, Huang Y, Huang Y, Yang Q, Li X, Huang Z, Zhi C. Voltage issue of aqueous rechargeable metal-ion batteries. Chem Soc Rev 2020; 49:180-232. [PMID: 31781706 DOI: 10.1039/c9cs00131j] [Citation(s) in RCA: 190] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Over the past two decades, a series of aqueous rechargeable metal-ion batteries (ARMBs) have been developed, aiming at improving safety, environmental friendliness and cost-efficiency in fields of consumer electronics, electric vehicles and grid-scale energy storage. However, the notable gap between ARMBs and their organic counterparts in energy density directly hinders their practical applications, making it difficult to replace current widely-used organic lithium-ion batteries. Basically, this huge gap in energy density originates from cell voltage, as the narrow electrochemical stability window of aqueous electrolytes substantially confines the choice of electrode materials. This review highlights various ARMBs with focuses on their voltage characteristics and strategies that can effectively raise battery voltage. It begins with the discussion on the fundamental factor that limits the voltage of ARMBs, i.e., electrochemical stability window of aqueous electrolytes, which decides the maximum-allowed potential difference between cathode and anode. The following section introduces various ARMB systems and compares their voltage characteristics in midpoint voltage and plateau voltage, in relation to respective electrode materials. Subsequently, various strategies paving the way to high-voltage ARMBs are summarized, with corresponding advancements highlighted. The final section presents potential directions for further improvements and future perspectives of this thriving field.
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Affiliation(s)
- Zhuoxin Liu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
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Ko S, Yamada Y, Yamada A. Formation of a Solid Electrolyte Interphase in Hydrate-Melt Electrolytes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:45554-45560. [PMID: 31710206 DOI: 10.1021/acsami.9b13662] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Aqueous Li-ion batteries using nonflammable aqueous electrolytes have been continuously studied to achieve the ultimate safety of the battery system. However, they have a major drawback of low operation voltage resulting from the narrow potential window of aqueous electrolytes. Recently, a room-temperature hydrate melt of Li salts has been discovered as a new class of stable aqueous electrolyte with a widened potential window (over 3 V) that enables the reversible operation of high-voltage (3 V-class) aqueous Li-ion batteries. An important factor contributing to the wide potential window is the formation of a solid electrolyte interphase (SEI) on negative electrodes, but its detailed mechanism has not been fully understood yet. Here, we study the SEI formation in the hydrate-melt electrolyte in relation with the composition and morphology of the electrodes investigated via X-ray photoelectron spectroscopy and scanning electron microscopy. We demonstrate that the formation of a stable SEI depends on the type of the electrodes used as well as the electrolyte salt concentrations.
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Affiliation(s)
- Seongjae Ko
- Department of Chemical System Engineering , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Yuki Yamada
- Department of Chemical System Engineering , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
- Elements Strategy Initiative for Catalysts & Batteries (ESICB) , Kyoto University , 1-30, Goryo-Ohara , Nishikyo-ku, Kyoto 615-8245 , Japan
| | - Atsuo Yamada
- Department of Chemical System Engineering , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
- Elements Strategy Initiative for Catalysts & Batteries (ESICB) , Kyoto University , 1-30, Goryo-Ohara , Nishikyo-ku, Kyoto 615-8245 , Japan
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48
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Electrochemical activity of platinum, gold and glassy carbon electrodes in water-in-salt electrolyte. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113538] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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49
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Kondou S, Nozaki E, Terada S, Thomas ML, Ueno K, Umebayashi Y, Dokko K, Watanabe M. Enhanced Electrochemical Stability of Molten Li Salt Hydrate Electrolytes by the Addition of Divalent Cations. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:20167-20175. [PMID: 30220955 PMCID: PMC6130271 DOI: 10.1021/acs.jpcc.8b06251] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/15/2018] [Indexed: 06/08/2023]
Abstract
Water can be an attractive solvent for Li-ion battery electrolytes owing to numerous advantages such as high polarity, nonflammability, environmental benignity, and abundance, provided that its narrow electrochemical potential window can be enhanced to a similar level to that of typical nonaqueous electrolytes. In recent years, significant improvements in the electrochemical stability of aqueous electrolytes have been achieved with molten salt hydrate electrolytes containing extremely high concentrations of Li salt. In this study, we investigated the effect of divalent salt additives (magnesium and calcium bis(trifluoromethanesulfonyl)amides) in a molten salt hydrate electrolyte (21 mol kg-1 lithium bis(trifluoromethanesulfonyl)amide) on the electrochemical stability and aqueous lithium secondary battery performance. We found that the electrochemical stability was further enhanced by the addition of the divalent salt. In particular, the reductive stability was increased by more than 1 V on the Al electrode in the presence of either of the divalent cations. Surface characterization with X-ray photoelectron spectroscopy suggests that a passivation layer formed on the Al electrode consists of inorganic salts (most notably fluorides) of the divalent cations and the less-soluble solid electrolyte interphase mitigated the reductive decomposition of water effectively. The enhanced electrochemical stability in the presence of the divalent salts resulted in a more-stable charge-discharge cycling of LiCoO2 and Li4Ti5O12 electrodes.
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Affiliation(s)
- Shinji Kondou
- Department
of Chemistry and Biotechnology, Yokohama
National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Erika Nozaki
- Graduate
School of Science and Technology, Niigata
University, 8050 Ikarashi, 2-no-cho, Nishi-ku, Niigata
City 950-2181, Japan
| | - Shoshi Terada
- Department
of Chemistry and Biotechnology, Yokohama
National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Morgan L. Thomas
- Department
of Chemistry and Biotechnology, Yokohama
National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Kazuhide Ueno
- Department
of Chemistry and Biotechnology, Yokohama
National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Yasuhiro Umebayashi
- Graduate
School of Science and Technology, Niigata
University, 8050 Ikarashi, 2-no-cho, Nishi-ku, Niigata
City 950-2181, Japan
| | - Kaoru Dokko
- Department
of Chemistry and Biotechnology, Yokohama
National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- Unit
of Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Kyoto 615-8510, Japan
| | - Masayoshi Watanabe
- Department
of Chemistry and Biotechnology, Yokohama
National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
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50
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Electrodeposition of rhenium with suppressed hydrogen evolution from water-in-salt electrolyte. Electrochem commun 2018. [DOI: 10.1016/j.elecom.2018.06.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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