| 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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Gómez, Elvira
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Bismuth oxyiodide-based composites for advanced visible-light activation of peroxymonosulfate in pharmaceutical mineralizationcitations
- 2024Advanced degradation of organic pollutants using sonophotocatalytic peroxymonosulfate activation with CoFe2O4/Cu- and Ce-doped SnO2 compositescitations
- 2023Nanostructured Ir-based electrocatalysts for oxygen evolution prepared by galvanic displacement of Co and Nicitations
- 2020Electrodeposition of nanostructured cobalt films from a deep eutectic solvent: Influence of the substrate and deposition potential rangecitations
- 2020Efficient and green electrochemical synthesis of 4-aminophenol using porous Au micropillarscitations
- 2020Electrodeposition of nanostructured cobalt films from a deep eutectic solvent: influence of the substrate and deposition potential rangecitations
- 2018Surface sensitive nickel electrodeposition in deep eutectic solventcitations
- 2018Use of CO as a Cleaning Tool of Highly Active Surfaces in Contact with Ionic Liquids: Ni Deposition on Pt(111) Surfaces in ILcitations
- 2016Sono-electrodeposition transfer of micro-scale copper patterns on to A7 substrates using a mask-less methodcitations
- 2014Conditions that bicontinuous microemulsions must fulfill to be used as template for electrodeposition of nanostructurescitations
- 2013Microemulsions for obtaining nanostructures by means of electrodeposition methodcitations
Places of action
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article
Nanostructured Ir-based electrocatalysts for oxygen evolution prepared by galvanic displacement of Co and Ni
Abstract
<p>Proton exchange membrane (PEM) electrolysers are promising devices to produce hydrogen as a green fuel. Currently, this technology is limited by the sluggish kinetics of the oxygen evolution reaction (OER). In this work, we describe an environmentally safe method for the preparation of Ir oxide thin films (IrO<sub>2</sub>) for OER. Electrodeposition of Co and Ni was performed in the non-toxic choline chloride:urea deep eutectic solvent (ChCl:urea DES), followed by galvanic displacement reaction (GDR) of Co and Ni by Ir(IV). We evaluated how the GDR conditions, such as the metal replaced (Co or Ni), time and temperature affect both the activity and stability of the deposited IrO<sub>2</sub> films on gold substrates. We observed that GDR of Ni at 90 °C induces morphological changes on the IrO<sub>2</sub> nanostructures which resulted in higher activity and stability towards OER. We highlight that not only reducing mass loadings of Ir but also tuning the surface morphology and structure controlling the synthesis preparation, as well as investigating the role of the substrate, are key to design more active and stable OER electrocatalysts.</p>