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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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Krysiak, Olga
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024From quinary Co–Cu–Mo–Pd–Re materials libraries to gas diffusion electrodes for Alkaline hydrogen evolutioncitations
- 2023Oxidative depolymerisation of kraft lignincitations
- 2023Scalable Synthesis of Multi‐Metal Electrocatalyst Powders and Electrodes and their Application for Oxygen Evolution and Water Splittingcitations
- 2023High-throughput exploration of structural and functional properties of the high entropy nitride system (Ti-Co-Mo-Ta-W)Ncitations
- 2023Microscale combinatorial libraries for the discovery of high-entropy materialscitations
- 2022Discovery of high-entropy oxide electrocatalysts: from thin-film material libraries to particlescitations
Places of action
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article
Scalable Synthesis of Multi‐Metal Electrocatalyst Powders and Electrodes and their Application for Oxygen Evolution and Water Splitting
Abstract
<jats:title>Abstract</jats:title><jats:p>Multi‐metal electrocatalysts provide nearly unlimited catalytic possibilities arising from synergistic element interactions. We propose a polymer/metal precursor spraying technique that can easily be adapted to produce a large variety of compositional different multi‐metal catalyst materials. To demonstrate this, 11 catalysts were synthesized, characterized, and investigated for the oxygen evolution reaction (OER). Further investigation of the most active OER catalyst, namely CoNiFeMoCr, revealed a polycrystalline structure, and operando Raman measurements indicate that multiple active sites are participating in the reaction. Moreover, Ni foam‐supported CoNiFeMoCr electrodes were developed and applied for water splitting in flow‐through electrolysis cells with electrolyte gaps and in zero‐gap membrane electrode assembly (MEA) configurations. The proposed alkaline MEA‐type electrolyzers reached up to 3 A cm<jats:sup>−2</jats:sup>, and 24 h measurements demonstrated no loss of current density of 1 A cm<jats:sup>−2</jats:sup>.</jats:p>