| 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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Fabbri, Emiliana
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Designing bifunctional perovskite catalysts for the oxygen reduction and evolution reactionscitations
- 2024Cobalt-free layered perovskites RBaCuFeO 5+ δ (R = 4f lanthanide) as electrocatalysts for the oxygen evolution reactioncitations
- 2023Operando Investigations of Reversible and Irreversible Transformations of Metal Organic Framework Based Catalysts during the Oxygen Evolution Reaction
- 2023Influence of carbon on the dynamic changes in <scp>C</scp>o oxidation state of Ba0.<scp>5Sr0</scp>.<scp>5Co0</scp>.<scp>8Fe0</scp>.<scp>2O3</scp>‐δ perovskite catalyst during the oxygen reduction and evolution reactionscitations
- 2023Influence of carbon on the dynamic changes in Co oxidation state of Ba0.5Sr0.5Co0.8Fe0.2O3-δ perovskite catalyst during the oxygen reduction and evolution reactionscitations
- 2022Investigating Perovskite Oxide Catalysts As Bifunctional Oxygen Electrodes Using Operando XAS
- 2021Correlation between Oxygen Vacancies and Oxygen Evolution Reaction Activity for a Model Electrode: PrBaCo2O5+δ
- 2021Correlation between Oxygen Vacancies and Oxygen Evolution Reaction Activity for a Model Electrode: PrBaCo<sub>2</sub>O<sub>5+<i>δ</i></sub>citations
- 2020Tuning the Co oxidation state in Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ by flame spray synthesis towards high oxygen evolution reaction activitycitations
- 2019Fe-doping in double perovskite PrBaCo 2(1-x) Fe 2x O 6-δ : insights into structural and electronic efects to enhance oxygen evolution catalyst stabilitycitations
- 2019Fe-Doping in Double Perovskite PrBaCo2(1-x)Fe2xO6-δ: Insights into Structural and Electronic Effects to Enhance Oxygen Evolution Catalyst Stabilitycitations
- 2018Highly Active Nanoperovskite Catalysts for Oxygen Evolution Reaction: Insights into Activity and Stability of Ba0.5Sr0.5Co0.8Fe0.2O2+δ and PrBaCo2O5+δcitations
- 2017Unraveling thermodynamics, stability, and oxygen evolution activity of strontium ruthenium perovskite oxidecitations
- 2017Dynamic surface self-reconstruction is the key of highly active perovskite nano-electrocatalysts for water splittingcitations
- 2015Probing the bulk ionic conductivity by thin film hetero-epitaxial engineeringcitations
- 2014Catalyzed SnO2 thin films: theoretical and experimental insights into fabrication and electrocatalytic propertiescitations
Places of action
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article
Highly Active Nanoperovskite Catalysts for Oxygen Evolution Reaction: Insights into Activity and Stability of Ba0.5Sr0.5Co0.8Fe0.2O2+δ and PrBaCo2O5+δ
Abstract
It is shown that producing PrBaCo<sub>2</sub>O<sub>5+δ</sub> and Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>2+δ</sub>nanoparticle by a scalable synthesis method leads to high massactivities for the oxygen evolution reaction (OER) with outstandingimprovements by 10× and 50×, respectively, compared to those preparedvia the state‐of‐the‐art synthesis method. Here, detailed comparisons atboth laboratory and industrial scales show that Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>2+δ</sub> appears to be the most active and stable perovskite catalyst under alkaline conditions, while PrBaCo<sub>2</sub>O<sub>5+δ</sub>reveals thermodynamic instability described by the density‐functionaltheory based Pourbaix diagrams highlighting cation dissolution under OERconditions. <i>Operando</i> X‐ray absorption spectroscopy is used inparallel to monitor electronic and structural changes of the catalystsduring OER. The exceptional BSCF functional stability can be correlatedto its thermodynamic meta‐stability under OER conditions as highlightedby Pourbaix diagram analysis. BSCF is able to dynamicallyself‐reconstruct its surface, leading to formation of Co‐basedoxy(hydroxide) layers while retaining its structural stability.Differently, PBCO demonstrates a high initial OER activity while itundergoes a degradation process considering its thermodynamicinstability under OER conditions as anticipated by its Pourbaix diagram.Overall, this work demonstrates a synergetic approach of using bothexperimental and theoretical studies to understand the behavior ofperovskite catalysts.