Upgrading the detection of electrocatalyst degradation during the oxygen evolution reaction AITranslate

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DOI：https://doi.org/10.1016/j.coelec.2023.101247

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Highlights • Degradation is a key challenge for earth-abundant electrocatalysts. • Materials degradation needs to be distinguished from operational degradation. • Degradation studies have high demands on experimental design. • Degradation studies require additional physical characterization. • Quantification of electrochemical degradation is urgently needed. Electrocatalysts for the oxygen evolution reaction (OER) are an important component for the transition from fossil to sustainable energy. Commercialization of cost-effective earth-abundant electrocatalysts is in large parts hindered by their degradation. In this short review, I identify common processes leading to a decrease in electrocatalyst activity, followed by an introduction of staple methods to determine degradation electrochemically and by additional physical characterization, which has the potential to remove ambiguities of purely electrochemical studies. I conclude by a summary of the key challenges for an accurate determination of degradation processes and highlight interesting directions to advance the understanding of degradation processes on electrocatalysts in materials-centered model studies. Graphical abstract Download : Download high-res image (193KB) Download : Download full-size image