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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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Reissner, Regine
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Publications (4/4 displayed)
- 2020Facilitating Water electrolysers for electricity-grid services in Europe through establishing standardized testing protocolscitations
- 2019Highly Active Binder Free Plasma Sprayed Non-Noble Metal Electrodes for Anion Exchange Membrane Electrolysis at Different Reduced KOH Concentrationscitations
- 2002Reaction of potassium with thin epitaxial NiO() filmscitations
- 2000Dry layer preparation and characterisation of polymer electrolyte fuel cell componentscitations
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article
Reaction of potassium with thin epitaxial NiO() films
Abstract
Nickel is frequently used as catalyst in alkaline electrochemical systems where the alkaline metal adsorbs on theoxygen electrodes. Therefore the reaction of potassium with thin nickel oxide films deposited on an Ag(1 00) surfacewas study by ultraviolet photoelectron spectroscopy, low-energy electron diffraction and X-ray photoelectron spec-troscopy, which allows to investigate the oxidation states of the potassium and the nickel. Due to the deposition ofmetallic potassium the formed oxides cannot be stoichiometric. The potassium reacted with the nickel oxide film,whereby the nickel was partially reduced and the potassium was oxidized. The reaction started at low temperatures andfinished at approx. 300 K