| 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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Koster, Gertjan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Enhanced Piezoelectricity by Polarization Rotation through Thermal Strain Manipulation in PbZr<sub>0.6</sub>Ti<sub>0.4</sub>O<sub>3</sub> Thin Films
- 2024Orbital-overlap-driven hybridization in 3d-transition metal perovskite oxides LaMO3 (M = Ti-Ni) and La2CuO4citations
- 2024Orbital-overlap-driven hybridization in 3d-transition metal perovskite oxides LaMO3 (M = Ti-Ni) and La2CuO4citations
- 2024The effect of intrinsic magnetic order on electrochemical water splittingcitations
- 2024Thermally Stable Capacitive Energy-Density and Colossal Electrocaloric and Pyroelectric Effects of Sm-Doped Pb(Mg 1/3 Nb 2/3 )O 3 –PbTiO 3 Thin Filmscitations
- 2024In Situ X-ray Absorption Spectroscopy of LaFeO3 and LaFeO3/LaNiO3 Thin Films in the Electrocatalytic Oxygen Evolution Reaction
- 2024In Situ X-ray Absorption Spectroscopy of LaFeO3 and LaFeO3/LaNiO3 Thin Films in the Electrocatalytic Oxygen Evolution Reactioncitations
- 2024Stabilizing Perovskite Pb(Mg<sub>0.33</sub>Nb<sub>0.67</sub>)O<sub>3</sub>-PbTiO<sub>3</sub> Thin Films by Fast Deposition and Tensile Mismatched Growth Templatecitations
- 2023Correlated Metals Transparent Conductors with High UV to Visible Transparency on Amorphous Substratescitations
- 2023On the importance of the SrTiO3 template and the electronic contact layer for the integration of phase-pure low hysteretic Pb(Mg0.33Nb0.67)O3-PbTiO3 layers with Sicitations
- 2023Epitaxial oxides on semiconductors: growth perspectives and device applications
- 2023Epitaxial growth of the candidate ferroelectric Rashba material SrBiO<sub>3</sub> by pulsed laser deposition
- 2023Non-stoichiometry and its implications for the properties of PMN–PT thin filmscitations
- 2023A High-Entropy Oxide as High-Activity Electrocatalyst for Water Oxidationcitations
- 2023A High-Entropy Oxide as High-Activity Electrocatalyst for Water Oxidationcitations
- 2022A high entropy oxide as high-activity electrocatalyst for water oxidation
- 2022Large imprint in epitaxial 0.67Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>-0.33PbTiO<sub>3</sub> thin films for piezoelectric energy harvesting applicationscitations
- 2021Growth and crystallization of sio2/geo2 thin films on si(100) substratescitations
- 2021Growth and crystallization of sio 2 /geo 2 thin films on si(100) substratescitations
- 2020Single-Source, Solvent-Free, Room Temperature Deposition of Black γ-CsSnI 3 Filmscitations
- 2020Tailoring Vanadium Dioxide Film Orientation Using Nanosheets: a Combined Microscopy, Diffraction, Transport, and Soft X‐Ray in Transmission Studycitations
- 2020Tailoring Vanadium Dioxide Film Orientation Using Nanosheets: a Combined Microscopy, Diffraction, Transport, and Soft X‐Ray in Transmission Studycitations
- 2020Single‐Source, Solvent‐Free, Room Temperature Deposition of Black γ‐CsSnI3 Filmscitations
- 2020Epitaxial growth of full range of compositions of (1 1 1) PbZr1- xTixO3 on GaNcitations
- 2020Tailoring Vanadium Dioxide Film Orientation Using Nanosheets : a Combined Microscopy, Diffraction, Transport, and Soft X-Ray in Transmission Studycitations
- 2020Atomic layer deposition of SiO2-GeO2 multilayerscitations
- 2016Long-range domain structure and symmetry engineering by interfacial oxygen octahedral coupling at heterostructure interfacecitations
- 2015Epitaxy on Demandcitations
- 2014Patterning of Epitaxial Perovskites from Micro and Nano Molded Stencil Maskscitations
- 2012High-Temperature Magnetic Insulating Phase in Ultrathin La0.67Sr0.33MnO3 Filmscitations
- 2011Metallic and Insulating Interfaces of Amorphous SrTiO3-Based Oxide Heterostructurescitations
Places of action
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article
A High-Entropy Oxide as High-Activity Electrocatalyst for Water Oxidation
Abstract
<p>High-entropy materials are an emerging pathway in the development of high-activity (electro)catalysts because of the inherent tunability and coexistence of multiple potential active sites, which may lead to earth-abundant catalyst materials for energy-efficient electrochemical energy storage. In this report, we identify how the multication composition in high-entropy perovskite oxides (HEO) contributes to high catalytic activity for the oxygen evolution reaction (OER), i.e., the key kinetically limiting half-reaction in several electrochemical energy conversion technologies, including green hydrogen generation. We compare the activity of the (001) facet of LaCr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>O<sub>3-δ</sub> with the parent compounds (single B-site in the ABO<sub>3</sub> perovskite). While the single B-site perovskites roughly follow the expected volcano-type activity trends, the HEO clearly outperforms all of its parent compounds with 17 to 680 times higher currents at a fixed overpotential. As all samples were grown as an epitaxial layer, our results indicate an intrinsic composition-function relationship, avoiding the effects of complex geometries or unknown surface composition. In-depth X-ray photoemission studies reveal a synergistic effect of simultaneous oxidation and reduction of different transition metal cations during the adsorption of reaction intermediates. The surprisingly high OER activity demonstrates that HEOs are a highly attractive, earth-abundant material class for high-activity OER electrocatalysts, possibly allowing the activity to be fine-tuned beyond the scaling limits of mono- or bimetallic oxides.</p>