Nowroozi, Mohammad Ali ; de Laune, Benjamin ; Clemens, Oliver (2018)
Reversible Electrochemical Intercalation and Deintercalation of Fluoride Ions into Host Lattices with Schafarzikite-Type Structure.
In: ChemistryOpen, 7 (8)
doi: 10.1002/open.201800106
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Herein, we report the successful electrochemical fluorination and defluorination of schafarzikite‐type compounds with the composition Fe0.5M0.5Sb2O4 (M=Mg or Co). We show that electrochemical methods can present a more controllable and less environmentally damaging route for fluorinating compounds in contrast to traditional methods that involve heating samples in F2‐rich atmospheres. The reactivity of the host lattices with fluoride during electrochemical fluorination makes this material an interesting candidate for fluoride‐ion battery applications. However, deleterious side reactions with the conductive carbon matrix during fluorination suggests to the contrary. Regardless of the side reactions, the schafarzikite structure was found to be an alternative reversible host lattice for fluoride incorporation and removal in addition to the previously reported Ruddlesden–Popper‐type compounds.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Nowroozi, Mohammad Ali ; de Laune, Benjamin ; Clemens, Oliver |
| Art des Eintrags: | Bibliographie |
| Titel: | Reversible Electrochemical Intercalation and Deintercalation of Fluoride Ions into Host Lattices with Schafarzikite-Type Structure |
| Sprache: | Englisch |
| Publikationsjahr: | August 2018 |
| Verlag: | Wiley-VCH Verlag GmbH, Weinheim |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ChemistryOpen |
| Jahrgang/Volume einer Zeitschrift: | 7 |
| (Heft-)Nummer: | 8 |
| DOI: | 10.1002/open.201800106 |
| URL / URN: | https://doi.org/10.1002/open.201800106 |
| Kurzbeschreibung (Abstract): | Herein, we report the successful electrochemical fluorination and defluorination of schafarzikite‐type compounds with the composition Fe0.5M0.5Sb2O4 (M=Mg or Co). We show that electrochemical methods can present a more controllable and less environmentally damaging route for fluorinating compounds in contrast to traditional methods that involve heating samples in F2‐rich atmospheres. The reactivity of the host lattices with fluoride during electrochemical fluorination makes this material an interesting candidate for fluoride‐ion battery applications. However, deleterious side reactions with the conductive carbon matrix during fluorination suggests to the contrary. Regardless of the side reactions, the schafarzikite structure was found to be an alternative reversible host lattice for fluoride incorporation and removal in addition to the previously reported Ruddlesden–Popper‐type compounds. |
| Freie Schlagworte: | electrochemical fluorination, fluoride-ion batteries, schafarzikite type structure, topochemical reactions, X-ray diffraction |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialdesign durch Synthese |
| Hinterlegungsdatum: | 11 Dez 2018 14:39 |
| Letzte Änderung: | 11 Dez 2018 14:39 |
| PPN: | |
| Sponsoren: | This work was funded by the German Research Foundation (grant no CL551/2‐1)., B.d.L. acknowledges the EPSRC for financial support (EP/L014114/1)., We further acknowledge support by the German Research Foundation (DFG) and the Open Access Publishing Fund of Technische Universität Darmstadt. |
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