<i>Operando</i> Fe dissolution in Fe–N–C electrocatalysts during acidic oxygen reduction: impact of local pH change

Authors: Angus Pedersen, Kavita Kumar, Yu-Ping Ku, Vincent Martin, Laetitia Dubau, Keyla Teixeira Santos, Jesús Barrio, Viktoriia A. Saveleva, Pieter Glatzel, Vinod K. Paidi, Xiaoyan Li, Andreas Hutzler, Maria-Magdalena Titirici, Antoine Bonnefont, Serhiy Cherevko, Ifan E. L. Stephens, Frédéric Maillard

Published: 2024-07-30

DOI: 10.1039/d4ee01995d

Source: Full article

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Abstract

Fe cations produced during the reduction of O2 on Fe–N–C materials transform into Fe-oxides due to a local increase in pH.