| 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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Steinhart, Martin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Polymeric liquids in mesoporous photonic structures: From precursor film spreading to imbibition dynamics at the nanoscalecitations
- 2024TFE Terpolymers: Once Promising -Are There Still Perspectives in the 21st Century: Synthesis, Characterization, and Properties-Part Icitations
- 2021Cationic Ordering and Its Influence on the Magnetic Properties of Co-Rich Cobalt Ferrite Thin Films Prepared by Reactive Solid Phase Epitaxy on Nb-Doped SrTiO3(001)citations
- 2017Electro-oxidation of a cobalt based steel in LiOH: a non-noble metal based electro-catalyst suitable for durable water-splitting in an acidic milieucitations
- 2017Hybrid surface patterns mimicking the design of the adhesive toe pad of tree frog
- 2017Hybrid Surface Patterns Mimicking the Design of the Adhesive Toe Pad of Tree Frogcitations
- 2017Hybrid Surface Patterns Mimicking the Design of the Adhesive Toe Pad of Tree Frogcitations
- 2016Electro-oxidation of Ni42 steel: A highly active bifunctional electrocatalystcitations
- 2016Electro‐Oxidation of Ni42 Steel: A Highly Active Bifunctional Electrocatalystcitations
- 2015Stainless steel made to rust: a robust water-splitting catalyst with benchmark characteristicscitations
- 2007Nanoscopic building blocks from polymers, metals, and semiconductorscitations
- 2001Preparation of fibers with nanoscaled morphologies: Electrospinning of polymer blendscitations
Places of action
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article
Electro‐Oxidation of Ni42 Steel: A Highly Active Bifunctional Electrocatalyst
Abstract
<jats:p>Janus type water‐splitting catalysts have attracted highest attention as a tool of choice for solar to fuel conversion. AISI Ni42 steel is upon harsh anodization converted into a bifunctional electrocatalyst. Oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) are highly efficiently and steadfast catalyzed at pH 7, 13, 14, 14.6 (OER) and at pH 0, 1, 13, 14, 14.6 (HER), respectively. The current density taken from long‐term OER measurements in pH 7 buffer solution upon the electro‐activated steel at 491 mV overpotential (<jats:italic>η</jats:italic>) is around four times higher (4 mA cm<jats:sup>−2</jats:sup>) in comparison with recently developed OER electrocatalysts. The very strong voltage–current behavior of the catalyst shown in OER polarization experiments at both pH 7 and at pH 13 are even superior to those known for IrO<jats:sub>2</jats:sub>‐RuO<jats:sub>2</jats:sub>. No degradation of the catalyst is detected even when conditions close to standard industrial operations are applied to the catalyst. A stable Ni‐, Fe‐oxide based passivating layer sufficiently protects the bare metal for further oxidation. Quantitative charge to oxygen (OER) and charge to hydrogen (HER) conversion are confirmed. High‐resolution XPS spectra show that most likely γ−NiO(OH) and FeO(OH) are the catalytic active OER and NiO is the catalytic active HER species.</jats:p>