Stenzel, David ; Zhou, Bei ; Okafor, Chukwudalu ; Kante, Mohana Veeraju ; Lin, Ling ; Melinte, Georgian ; Bergfeldt, Thomas ; Botros, Miriam ; Hahn, Horst ; Breitung, Ben ; Schweidler, Simon (2022)
High-entropy spinel-structure oxides as oxygen evolution reaction electrocatalyst.
In: Frontiers in Energy Research, 2022, 10
doi: 10.26083/tuprints-00022029
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
High-entropy oxides are an upcoming research topic due to their broad range of possible crystal structures and applications. In this work, we want to present the change in the catalytic properties when using different elements to create a high-entropy spinel. Therefore, we used the nebulized-spray pyrolysis to synthesize the high-entropy spinel (Mn₀.₂Fe₀.₂Ni₀.₂Mg₀.₂Zn₀.₂)₃O₄ and later on exchanged the Mg or the Zn with elements with multiple possible oxidation states, in our example each with Cr or Co. The phase purity, morphology, microstructure and homogeneity were investigated by XRD, SEM and STEM-EDX. Their electrocatalytic performance and stability was measured via oxygen evolution reaction and cyclic voltammetry and compared to IrO₂, used as reference. The best performance of the synthesized materials was achieved by (Mn₀.₂Fe₀.₂Ni₀.₂Mg₀.₂Cr₀.₂)₃O₄.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Stenzel, David ; Zhou, Bei ; Okafor, Chukwudalu ; Kante, Mohana Veeraju ; Lin, Ling ; Melinte, Georgian ; Bergfeldt, Thomas ; Botros, Miriam ; Hahn, Horst ; Breitung, Ben ; Schweidler, Simon |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | High-entropy spinel-structure oxides as oxygen evolution reaction electrocatalyst |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | Frontiers Media S.A. |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Frontiers in Energy Research |
| Jahrgang/Volume einer Zeitschrift: | 10 |
| Kollation: | 11 Seiten |
| DOI: | 10.26083/tuprints-00022029 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22029 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | High-entropy oxides are an upcoming research topic due to their broad range of possible crystal structures and applications. In this work, we want to present the change in the catalytic properties when using different elements to create a high-entropy spinel. Therefore, we used the nebulized-spray pyrolysis to synthesize the high-entropy spinel (Mn₀.₂Fe₀.₂Ni₀.₂Mg₀.₂Zn₀.₂)₃O₄ and later on exchanged the Mg or the Zn with elements with multiple possible oxidation states, in our example each with Cr or Co. The phase purity, morphology, microstructure and homogeneity were investigated by XRD, SEM and STEM-EDX. Their electrocatalytic performance and stability was measured via oxygen evolution reaction and cyclic voltammetry and compared to IrO₂, used as reference. The best performance of the synthesized materials was achieved by (Mn₀.₂Fe₀.₂Ni₀.₂Mg₀.₂Cr₀.₂)₃O₄. |
| Freie Schlagworte: | high-entropy materials, high-entropy spinels, catalysis, oxygen evolution reaction, electrocatalyst, nebulized spray pyrolysis |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-220299 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien |
| Hinterlegungsdatum: | 26 Aug 2022 11:07 |
| Letzte Änderung: | 29 Aug 2022 05:23 |
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