Fabrication of nanocrystalline high-entropy oxide CoNiFeCrMnO<sub><i>x</i></sub> thin film electrodes by dip-coating for oxygen evolution electrocatalysis
Qingyang Wu, Achim Alkemper, Stefan Lauterbach, Jan P. Hofmann, Marcus Einert
Abstract
Nanocrystalline high-entropy CoNiFeCrMnO x thin films were prepared by dip-coating and annealing at 400 °C, showing stable oxygen evolution with overpotentials of 258 mV vs. RHE at 10 mA cm −2 over 10 hours in alkaline media.
Topics & Concepts
Nanocrystalline materialElectrocatalystFabricationMaterials scienceOxideThin filmElectrodeCoatingOxygen evolutionOxygenNanotechnologyChemical engineeringElectrochemistryMetallurgyChemistryPhysical chemistryAlternative medicineEngineeringMedicineOrganic chemistryPathologyElectrocatalysts for Energy ConversionHigh Entropy Alloys StudiesChalcogenide Semiconductor Thin Films