Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu 3 (HHTP) 2 for Reversible Lithium‐Ion Storage
Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu 3 (HHTP) 2 for Reversible Lithium‐Ion Storage
Faradaic reactions including charge transfer are often accompanied with diffusion limitation inside the bulk. Conductive two-dimensional frameworks (2D MOFs) with a fast ion transport can combine both—charge transfer and fast diffusion inside their porous structure. To study remaining diffusion limi...
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Personal Name(s): | Wrogemann, Jens Matthies (Corresponding author) |
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Lüther, Marco Joes / Bärmann, Peer / Lounasvuori, Mailis / Javed, Ali / Tiemann, Michael / Golnak, Ronny / Xiao, Jie / Petit, Tristan / Placke, Tobias / Winter, Martin | |
Contributing Institute: |
Helmholtz-Institut Münster Ionenleiter für Energiespeicher; IEK-12 |
Published in: | Angewandte Chemie, 62 (2023) 26, S. e202303111 |
Imprint: |
Weinheim
Wiley-VCH
2023
|
DOI: |
10.1002/anie.202303111 |
DOI: |
10.34734/FZJ-2024-02603 |
Document Type: |
Journal Article |
Research Program: |
Fundamentals and Materials |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2024-02603 in citations.
Faradaic reactions including charge transfer are often accompanied with diffusion limitation inside the bulk. Conductive two-dimensional frameworks (2D MOFs) with a fast ion transport can combine both—charge transfer and fast diffusion inside their porous structure. To study remaining diffusion limitations caused by particle morphology, different synthesis routes of Cu-2,3,6,7,10,11-hexahydroxytriphenylene (Cu3(HHTP)2), a copper-based 2D MOF, are used to obtain flake- and rod-like MOF particles. Both morphologies are systematically characterized and evaluated for redox-active Li+ ion storage. The redox mechanism is investigated by means of X-ray absorption spectroscopy, FTIR spectroscopy and in situ XRD. Both types are compared regarding kinetic properties for Li+ ion storage via cyclic voltammetry and impedance spectroscopy. A significant influence of particle morphology for 2D MOFs on kinetic aspects of electrochemical Li+ ion storage can be observed. This study opens the path for optimization of redox active porous structures to overcome diffusion limitations of Faradaic processes. |