| 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
Influence 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 reactions
Abstract
<jats:title>Abstract</jats:title><jats:p>Carbon is often used as a conductive additive in catalyst layers to increase conductivity and catalytic activity. However, the effect of carbon addition to perovskites on the oxygen reduction (ORR) and oxygen evolution (OER) reactions is convoluted. In this work, composites of perovskite Ba<jats:sub>0.5</jats:sub>Sr<jats:sub>0.5</jats:sub>Co<jats:sub>0.8</jats:sub>Fe<jats:sub>0.2</jats:sub>O<jats:sub>3‐δ</jats:sub> (BSCF) and conductive additives, carbon and indium doped tin oxide are compared. It is found that the conductive additives have differing effects on the ORR and OER activities and cobalt redox behavior, with carbon having a much more significant effect. In order to elucidate further these differences between BSCF and BSCF/carbon, operando X‐ray absorption spectroscopy (XAS) is measured simultaneously with cyclic voltammetry into the ORR and OER regions and the continuous changes in the Co oxidation state are observed with high time resolution. We theorize that carbon is enhancing the Co redox activity and as a result, the ORR and OER activities are likewise improved.</jats:p><jats:p><jats:boxed-text content-type="graphic" position="anchor"><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink" mimetype="image/png" position="anchor" specific-use="enlarged-web-image" xlink:href="graphic/eom212353-gra-0001-m.png"><jats:alt-text>image</jats:alt-text></jats:graphic></jats:boxed-text></jats:p>