Revealing the Fe doping effect on Ni catalysts for low alkalinity OER: from three-electrode systems to continuous flow anion exchange membrane water electrolyser

Identifier:  imarina:9468501

Handle: https://hdl.handle.net/20.500.11797/imarina9468501

Authors:  Huguet, David Domingo; Varela-Izquierdo, Victor; Martin, Jaime Cervera; Chaudret, Bruno; Soulantica, Katerina; Sanchez, Daniel Ruano; Sanchez, Miriam Diaz de los Bernardos; Godard, Cyril

Abstract:
Here, we report the use of magnetic induction heating as a rapid and efficient synthesis method to produce Fe@Ni nanoparticles (NPs) with tunable surface coverage and their application as catalysts in the oxygen evolution reaction (OER). This approach enables localized thermal decomposition of precursors, offering improved control over catalyst phase formation. To bridge the gap between lab-scale materials and practical electrolyser integration, the catalysts were deposited onto commercially available Ni-mesh supports suitable for Anion Exchange Membrane Water Electrolyser (AEMWE) operation. The influence of iron content on OER activity was evaluated, and the catalyst performance was validated in a full-cell electrolyser, highlighting the potential of this synthesis route for scalable green hydrogen technologies.