Title Investigation of Co-doped iron oxide electrocatalysts for AEM electrolysis
Authors Bockute, Kristina ; Barauskiene, Ieva ; Chimicius, Titas ; Laukaitis, Giedrius
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Is Part of 18th European congress and exhibition on advanced materials and processes, FEMS EUROMAT 2025, 14 – 18 September 2025, Granada, Spain: symposium program [with abstracts].. Madrid : Spanish Society of Materials. 2025, paper 788, p. 206
Keywords [eng] Cobalt ; Iron Oxide ; Electrocatalysis
Abstract [eng] Recent advancements in catalyst development for anion exchange membrane (AEM) water electrolysis have highlighted iron oxides doped with cobalt as efficient and costeffective alternatives to noble metal-based catalysts. Studies demonstrate that Co doping enhances the oxygen evolution reaction (OER) activity and durability of Fe-based oxides, optimizing their electronic and structural properties for improved performance. These findings [1-2] emphasize the potential of Co-doped Fe oxides to boost AEM electrolysis efficiency, offering a promising pathway toward scalable and sustainable hydrogen production. In this study, we present a systematic investigation into transition metal oxides, specifically Fe2O3 thin films doped with cobalt, as highly active and robust catalysts for OER. The thin films were fabricated using reactive magnetron sputtering, a precise deposition technique enabling control over film composition, microstructure, and thickness. Comprehensive characterization of the Co-doped Fe2O3 thin films revealed improvements in catalytic activity and stability compared to undoped Fe2O3. Structural analysis using X-ray diffraction (XRD) indicated that cobalt incorporation enhances the crystallinity and modifies the lattice structure, promoting favorable electronic and surface properties. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) provided insights into the surface morphology and uniformity of the films, which directly impact their electrochemical performance.
Published Madrid : Spanish Society of Materials
Type Conference paper
Language English
Publication date 2025