Wang, Junbo ; Stenzel, David ; Azmi, Raheleh ; Najib, Saleem ; Wang, Kai ; Jeong, Jaehoon ; Sarkar, Abhishek ; Wang, Qingsong ; Sukkurji, Parvathy Anitha ; Bergfeldt, Thomas ; Botros, Miriam ; Maibach, Julia ; Hahn, Horst ; Brezesinski, Torsten ; Breitung, Ben (2024)
Spinel to Rock-Salt Transformation in High Entropy Oxides with Li Incorporation.
In: Electrochem, 2020, 1 (1)
doi: 10.26083/tuprints-00022222
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
High entropy oxides (HEOs) constitute a promising class of materials with possibly new and largely unexplored properties. The virtually infinite variety of compositions (multi-element approach) for a single-phase structure allows the tailoring of their physical properties and enables unprecedented materials design. Nevertheless, this level of versatility renders their characterization as well as the study of specific processes or reaction mechanisms challenging. In the present work, we report the structural and electrochemical behavior of different multi-cationic HEOs. Phase transformation from spinel to rock-salt was observed upon incorporation of monovalent Li+ ions, accompanied by partial oxidation of certain elements in the lattice. This transition was studied by X-ray diffraction, inductively coupled plasma-optical emission spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, and attenuated total reflection infrared spectroscopy. In addition, the redox behavior was probed using cyclic voltammetry. Especially, the lithiated rock-salt structure HEOs were found to exhibit potential for usage as negative and positive electrode materials in rechargeable lithium-ion batteries.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Wang, Junbo ; Stenzel, David ; Azmi, Raheleh ; Najib, Saleem ; Wang, Kai ; Jeong, Jaehoon ; Sarkar, Abhishek ; Wang, Qingsong ; Sukkurji, Parvathy Anitha ; Bergfeldt, Thomas ; Botros, Miriam ; Maibach, Julia ; Hahn, Horst ; Brezesinski, Torsten ; Breitung, Ben |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Spinel to Rock-Salt Transformation in High Entropy Oxides with Li Incorporation |
| Sprache: | Englisch |
| Publikationsjahr: | 12 Januar 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2020 |
| Ort der Erstveröffentlichung: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Electrochem |
| Jahrgang/Volume einer Zeitschrift: | 1 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.26083/tuprints-00022222 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22222 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | High entropy oxides (HEOs) constitute a promising class of materials with possibly new and largely unexplored properties. The virtually infinite variety of compositions (multi-element approach) for a single-phase structure allows the tailoring of their physical properties and enables unprecedented materials design. Nevertheless, this level of versatility renders their characterization as well as the study of specific processes or reaction mechanisms challenging. In the present work, we report the structural and electrochemical behavior of different multi-cationic HEOs. Phase transformation from spinel to rock-salt was observed upon incorporation of monovalent Li+ ions, accompanied by partial oxidation of certain elements in the lattice. This transition was studied by X-ray diffraction, inductively coupled plasma-optical emission spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, and attenuated total reflection infrared spectroscopy. In addition, the redox behavior was probed using cyclic voltammetry. Especially, the lithiated rock-salt structure HEOs were found to exhibit potential for usage as negative and positive electrode materials in rechargeable lithium-ion batteries. |
| Freie Schlagworte: | high entropy materials, high entropy oxides, phase transformation, electrochemical energy storage, Li-ion batteries |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-222228 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien |
| Hinterlegungsdatum: | 12 Jan 2024 13:54 |
| Letzte Änderung: | 15 Jan 2024 09:37 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Spinel to Rock-Salt Transformation in High Entropy Oxides with Li Incorporation. (deposited 12 Jan 2024 13:54) [Gegenwärtig angezeigt]
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