| 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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Bäumer, Christoph
University of Twente
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2024The effect of intrinsic magnetic order on electrochemical water splittingcitations
- 2024In Situ X-ray Absorption Spectroscopy of LaFeO3 and LaFeO3/LaNiO3 Thin Films in the Electrocatalytic Oxygen Evolution Reactioncitations
- 2023Separating the Effects of Band Bending and Covalency in Hybrid Perovskite Oxide Electrocatalyst Bilayers for Water Electrolysis
- 2023Probing the stability of SrIrO3 during active water electrolysis via operando atomic force microscopycitations
- 2023Single-Source Vapor-Deposition of MA1–xFAxPbI3 Perovskite Absorbers for Solar Cellscitations
- 2023A High-Entropy Oxide as High-Activity Electrocatalyst for Water Oxidationcitations
- 2022Atomistic Insights into Activation and Degradation of La0.6Sr0.4CoO3-δElectrocatalysts under Oxygen Evolution Conditionscitations
- 2022Separating the Effects of Band Bending and Covalency in Hybrid Perovskite Oxide Electrocatalyst Bilayers for Water Electrolysiscitations
- 2022A high entropy oxide as high-activity electrocatalyst for water oxidation
- 2022Activity-Stability Relationships in Oxide Electrocatalysts for Water Electrolysiscitations
- 2021In situ spectroscopic ellipsometry as a pathway toward achieving VO2 stoichiometry for amorphous vanadium oxide with magnetron sputteringcitations
- 2021Carbonate formation lowers the electrocatalytic activity of perovskite oxides for water electrolysiscitations
- 2020Antiphase Boundaries Constitute Fast Cation Diffusion Paths in SrTiO3 Memristive Devicescitations
- 2020Photoemission electron microscopy of magneto-ionic effects in La0.7Sr0.3MnO3citations
- 2020SrTiO3 termination controlcitations
- 2019Topotactic Phase Transition Driving Memristive Behaviorcitations
- 2019Electrolysis of Water at Atomically Tailored Epitaxial Cobaltite Surfacescitations
- 2018A Theoretical and Experimental View on the Temperature Dependence of the Electronic Conduction through a Schottky Barrier in a Resistively Switching SrTiO3-Based Memory Cellcitations
- 2018Addressing Multiple Resistive States of Polyoxovanadatescitations
- 2018A Theoretical and Experimental View on the Temperature Dependence of the Electronic Conduction through a Schottky Barrier in a Resistively Switching SrTiO 3 -Based Memory Cellcitations
- 2018Reduction of the forming voltage through tailored oxygen non-stoichiometry in tantalum oxide ReRAM devicescitations
- 2018Charge-transfer in B-site-depleted NdGaO3/SrTiO3 heterostructurescitations
- 2017Molecular Characteristics of a Mixed-Valence Polyoxovanadate {VIV/V18O42} in Solution and at the Liquid-Surface Interfacecitations
- 2015Surface Termination Conversion during SrTiO$_{3}$ Thin Film Growth Revealed by X-ray Photoelectron Spectroscopycitations
- 2015Complex behaviour of vacancy point-defects in SrRuO3 thin filmscitations
- 2015Ferroelectrically driven spatial carrier density modulation in graphenecitations
- 2015The influence of the local oxygen vacancy concentration on the piezoresponse of strontium titanate thin filmscitations
- 2015Surface Termination Conversion during SrTiO3 Thin Film Growth Revealed by X-ray Photoelectron Spectroscopycitations
- 2015Impact of the cation-stoichiometry on the resistive switching and data retention of SrTiO3 thin filmscitations
- 2013Feasibility studies for filament detection in resistively switching SrTiO3 devices by employing grazing incidence small angle X-ray scatteringcitations
Places of action
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article
Carbonate formation lowers the electrocatalytic activity of perovskite oxides for water electrolysis
Abstract
<p>The study of oxide electrocatalysts is often complicated by the formation of complex and unknown surface species as well as the interaction between the catalysts and common support materials. Because unknown surface species may result from air exposure, we developed a clean transfer system for the air-free electrochemical investigation of epitaxial thin films fabricated under typical surface science conditions. LaNiO<sub>3</sub>electrocatalysts exposed to ambient air exhibit a lower activity towards the oxygen evolution reaction than samples probed without air exposure. We demonstrate that this decrease in activity is connected to an alteration of the chemical environment of the electrocatalytically active sites through carbonate formation on exposure to CO<sub>2</sub>. Our study therefore shows that (1) the effects of air exposure must be considered for transition metal oxide catalysts and (2) that for the perovskite oxide LaNiO<sub>3</sub>the clean surface is more active than the air-exposed surface.</p>