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Denis, M., Chevreau, H., Salcedo-Abraira, P., Moreau, P., Dupre, N., Paris, M., Poizot, P. & Devic, T. (2023) Impact of the metal centre (Al3+, Fe3+) on the post-synthetic lithiation of functionalized MIL-53s and the electrochemical properties of lithiated derivatives. Molecular Systems Design & Engineering, 8 1030–1039. 
Added by: Richard Baschera (2023-04-28 14:19:12)   Last edited by: Richard Baschera (2023-08-17 12:49:16)
Type de référence: Article
DOI: 10.1039/D3ME00030C
Numéro d'identification (ISBN etc.): 2058-9689
Clé BibTeX: Denis2023
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Catégories: IMN, ST2E
Créateurs: Chevreau, Denis, Devic, Dupre, Moreau, Paris, Poizot, Salcedo-Abraira
Collection: Molecular Systems Design & Engineering
Consultations : 3/89
Indice de consultation : 10%
Indice de popularité : 2.5%
Liens URLs     https://pubs.rsc.o ... 2023/me/d3me00030c
Metal–organic frameworks (MOFs) combining both organic and inorganic redox-active moieties have recently drawn interest in the field of electrochemical energy storage. Here we focused our attention on MIL-53(M) (M = Al, Fe) analogues based on 2,5-dioxo-1,4-benzenedicarboxylate, as this ligand was already found to present an interesting electrochemical activity based on the quinone/phenolate redox couple in the solid state. We described here our attempts to chemically lithiate the title solids. Various synthetic paths were explored, and the resulting solids were characterized by a broad set of techniques, including X-ray diffraction, MAS NMR spectroscopy, transmission electron microscopy, inductively coupled plasma-atomic emission spectroscopy and total X-ray scattering experiments, among others. We showed that although the lithiation was accompanied by a loss of the long-range order whatever the synthetic conditions and the trivalent cation, the reactivity strongly differed for M = Al and Fe. Eventually, the electrochemical extraction/uptake of Li+ in the lithiated derivatives was evaluated in Li-half cells. Although their storage capacities are moderate, we found that the presence of even a minor amount of M3+ cations not only impacts the working potential of the ligand but also improves their long term capacity retention.
Publisher: The Royal Society of Chemistry
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