| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Strotkötter, Valerie
Ruhr University Bochum
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2024Self-formation of compositionally complex surface oxides on high entropy alloys: a route to sustainable catalysts
- 2023High-throughput exploration of structural and functional properties of the high entropy nitride system (Ti-Co-Mo-Ta-W)Ncitations
- 2022Discovery of high-entropy oxide electrocatalysts: from thin-film material libraries to particlescitations
- 2020Complex‐solid‐solution electrocatalyst discovery by computational prediction and high‐throughput experimentationcitations
- 2020Sputter deposition of highly active complex solid solution electrocatalysts into an ionic liquid librarycitations
- 2020Design of complex solid solution electrocatalysts by correlating configuration, adsorption energy distribution patterns and activity curvescitations
- 2020Design von komplexen Mischkristall‐Elektrokatalysatoren auf Basis der Korrelation von Konfiguration, Verteilungsmustern der Adsorptionsenergie und Aktivitätskurvencitations
Places of action
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document
Self-formation of compositionally complex surface oxides on high entropy alloys: a route to sustainable catalysts
Abstract
<jats:p>Sustainable catalysts rely on abundant elements which are prone to oxidation. A new route to non-noble electro-catalysts is opened by directing the formation of unavoidable surface oxides towards creating a few atomic layers of an active and stable electrocatalyst, which is in direct contact with its metallic, conducting support. This is enabled by combining the possibilities of compositionally complex solid solutions with accelerated atomic-scale surface characterization. Surface composition changes from the as-synthesized state to states after exposure to the oxygen evolution reaction (OER) are investigated using a Cantor-alloy-catalyst-coated tip array for atom probe tomography. Whereas the as-deposited film has a 3 nm thick native oxide, initial and prolonged OER exposures result in an oxygen-influenced surface layer equilibrium, which shows a lower oxidation depth and altered metal composition. This demonstrates that as-synthesized complex compositions can be used to obtain active and stable surface oxides under electrochemical load.</jats:p>