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Schott C, Schneider PM, Song KT, Yu H, Götz R, Haimerl F, Gubanova E, Zhou J, Schmidt TO, Zhang Q, Alexandrov V, Bandarenka AS. How to Assess and Predict Electrical Double Layer Properties. Implications for Electrocatalysis. Chem Rev 2024; 124:12391-12462. [PMID: 39527623 PMCID: PMC11613321 DOI: 10.1021/acs.chemrev.3c00806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 09/07/2024] [Accepted: 09/25/2024] [Indexed: 11/16/2024]
Abstract
The electrical double layer (EDL) plays a central role in electrochemical energy systems, impacting charge transfer mechanisms and reaction rates. The fundamental importance of the EDL in interfacial electrochemistry has motivated researchers to develop theoretical and experimental approaches to assess EDL properties. In this contribution, we review recent progress in evaluating EDL characteristics such as the double-layer capacitance, highlighting some discrepancies between theory and experiment and discussing strategies for their reconciliation. We further discuss the merits and challenges of various experimental techniques and theoretical approaches having important implications for aqueous electrocatalysis. A strong emphasis is placed on the substantial impact of the electrode composition and structure and the electrolyte chemistry on the double-layer properties. In addition, we review the effects of temperature and pressure and compare solid-liquid interfaces to solid-solid interfaces.
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Affiliation(s)
- Christian
M. Schott
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
| | - Peter M. Schneider
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
| | - Kun-Ting Song
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
| | - Haiting Yu
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
| | - Rainer Götz
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
| | - Felix Haimerl
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
- BMW
AG, Petuelring 130, 80809 München, Germany
| | - Elena Gubanova
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
| | - Jian Zhou
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
| | - Thorsten O. Schmidt
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
| | - Qiwei Zhang
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
- State
Key Laboratory of Urban Water Resource and Environment, School of
Environment, Harbin Institute of Technology, Harbin 150090, People’s Republic of China
| | - Vitaly Alexandrov
- Department
of Chemical and Biomolecular Engineering and Nebraska Center for Materials
and Nanoscience, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
| | - Aliaksandr S. Bandarenka
- Physics
of Energy Conversion and Storage, Department of Physics, Technical University of Munich, James-Franck-Straße 1, 85748 Garching bei München, Germany
- Catalysis
Research Center, Technical University of
Munich, Ernst-Otto-Fischer-Straße 1, 85748 Garching bei München, Germany
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Götz R, Pugacheva E, Ahaliabadeh Z, Llanos PS, Kallio T, Bandarenka AS. Characterization of the Lithium/Solid Electrolyte Interface in the Presence of Nanometer-thin TiO x Layers for All-Solid-State Batteries. CHEMSUSCHEM 2024; 17:e202401026. [PMID: 38837596 PMCID: PMC11587694 DOI: 10.1002/cssc.202401026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/02/2024] [Accepted: 06/05/2024] [Indexed: 06/07/2024]
Abstract
It is still unclear which role space charge layers (SCLs) play within an all-solid-state battery during operation with high current densities, as well as to which extent they form. Herein, we use a solid electrolyte with a known SCL formation and investigate it in a symmetric cell under non-blocking conditions with Li metal electrodes. Since the used LICGC™ electrolyte is known for its instability against lithium, it is protected from rapid degradation by nanometer-thin layers of TiOx deployed by atomic layer deposition. Close attention is given to the interfacial properties, as now additional Li+ can traverse through the interface depending on the applied bias potential. The interlayer's impedance response shows efficient lithium-ion conduction for low bias potentials and a diffusion-limiting effect towards high positive and negative potentials. SCLs grow up to a thickness of 5.1 μm. Additionally, estimating the apparent rate constant of the charge transfer across the interface indicates that the potentials where kinetics are hindered coincide with the widest SCLs. In conclusion, the investigation under higher steady-state currents was only possible because of the improved stability due to the interlayer. No chemo-physical failure could be observed after 800+ hours of cycling. However, an ex-situ SEM study shows a new phase at the interface, which grows into the electrolyte.
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Affiliation(s)
- Rainer Götz
- Physics of Energy Conversion and StoragePhysics DepartmentTechnical University of MunichJames-Franck-Str. 185748GarchingGermany
| | - Ekaterina Pugacheva
- Physics of Energy Conversion and StoragePhysics DepartmentTechnical University of MunichJames-Franck-Str. 185748GarchingGermany
| | - Zahra Ahaliabadeh
- Electrochemical Energy ConversionAalto UniversityP.O. Box 11000, Otakaari 1BAalto00076Finland
| | | | - Tanja Kallio
- Electrochemical Energy ConversionAalto UniversityP.O. Box 11000, Otakaari 1BAalto00076Finland
| | - Aliaksandr S. Bandarenka
- Physics of Energy Conversion and StoragePhysics DepartmentTechnical University of MunichJames-Franck-Str. 185748GarchingGermany
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Wu X, Liu Q, Zheng L, Lin S, Zhang Y, Song Y, Wang Z. Innervate Commercial Fabrics with Spirally-Layered Iontronic Fibrous Sensors Toward Dual-Functional Smart Garments. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2402767. [PMID: 38953387 PMCID: PMC11434216 DOI: 10.1002/advs.202402767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 05/28/2024] [Indexed: 07/04/2024]
Abstract
Electronic fabrics exhibit desirable breathability, wearing comfort, and easy integration with garments. However, surficial deposition of electronically functional materials/compounds onto fabric substrates would consequentially alter their intrinsic properties (e.g., softness, permeability, biocompatibility, etc.). To address this issue, here, a strategy to innervate arbitrary commercial fabrics with unique spirally-layered iontronic fibrous (SLIF) sensors is presented to realize both mechanical and thermal sensing functionalities without sacrificing the intrinsic fabric properties. The mechanical sensing function is realized via mechanically regulating the interfacial ionic supercapacitance between two perpendicular SLIF sensors, while the thermal sensing function is achieved based on thermally modulating the intrinsic ionic impedance in a single SLIF sensor. The resultant SLIF sensor-innervated electronic fabrics exhibit high mechanical sensitivity of 81 N-1, superior thermal sensitivity of 34,400 Ω °C-1, and more importantly, greatly minimized mutual interference between the two sensing functions. As demonstrations, various smart garments are developed for the precise monitoring of diverse human physiological signals. Moreover, artificial intelligence-assisted object recognition with high-accuracy (97.8%) is demonstrated with a SLIF sensor-innervated smart glove. This work opens up a new path toward the facile construction of versatile smart garments for wearable healthcare, human-machine interfaces, and the Internet of Things.
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Affiliation(s)
- Xiaodong Wu
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, China
| | - Qi Liu
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, China
| | - Lifei Zheng
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, China
| | - Sijian Lin
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, China
| | - Yiqun Zhang
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, China
| | - Yangyang Song
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, China
| | - Zhuqing Wang
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, China
- Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, 610041, China
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Yang S, Deng Y, Zhou S. Capacitive Behavior of Aqueous Electrical Double Layer Based on Dipole Dimer Water Model. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:16. [PMID: 36615925 PMCID: PMC9824578 DOI: 10.3390/nano13010016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 11/24/2022] [Accepted: 11/27/2022] [Indexed: 06/11/2023]
Abstract
The aim of the present paper is to investigate the possibility of using the dipole dimer as water model in describing the electrical double layer capacitor capacitance behaviors. Several points are confirmed. First, the use of the dipole dimer water model enables several experimental phenomena of aqueous electrical double layer capacitance to be achievable: suppress the differential capacitance values gravely overestimated by the hard sphere water model and continuum medium water model, respectively; reproduce the negative correlation effect between the differential capacitance and temperature, insensitivity of the differential capacitance to bulk electrolyte concentration, and camel-shaped capacitance-voltage curves; and more quantitatively describe the camel peak position of the capacitance-voltage curve and its dependence on the counter-ion size. Second, we fully illustrate that the electric dipole plays an irreplaceable role in reproducing the above experimentally confirmed capacitance behaviors and the previous hard sphere water model without considering the electric dipole is simply not competent. The novelty of the paper is that it shows the potential of the dipole dimer water model in helping reproduce experimentally verified aqueous electric double layer capacitance behaviors. One can expect to realize this potential by properly selecting parameters such as the dimer site size, neutral interaction, residual dielectric constant, etc.
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Affiliation(s)
- Songming Yang
- School of Physics and Electronics, Central South University, Changsha 410083, China
- Zhili College, Tsinghua University, Beijing 100084, China
| | - Youer Deng
- School of Physics and Electronics, Central South University, Changsha 410083, China
| | - Shiqi Zhou
- School of Physics and Electronics, Central South University, Changsha 410083, China
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Electric Double Layer: The Good, the Bad, and the Beauty. ELECTROCHEM 2022. [DOI: 10.3390/electrochem3040052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The electric double layer (EDL) is the most important region for electrochemical and heterogeneous catalysis. Because of it, its modeling and investigation are something that can be found in the literature for a long time. However, nowadays, it is still a hot topic of investigation, mainly because of the improvement in simulation and experimental techniques. The present review aims to present the classical models for the EDL, as well as presenting how this region affects electrochemical data in everyday experimentation, how to obtain and interpret information about EDL, and, finally, how to obtain some molecular point of view insights on it.
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