We demonstrate that applying large a-axis strains of up to 5.2% dramatically enhances the catalytic activity of RuO2 (100) epitaxial thin films for the oxygen evolution reaction. A transition in the catalytic reaction mechanism by the c-axis compression was proposed based on synchrotron X-ray fluorescence holography.
Z. Fatima, D. Oka, Y. Matsumoto, K. Kimura, N. Happo, K. Hayashi, Y. Hirose and T. Fukumura, Chem. Commun., 2026, Accepted Manuscript , DOI: 10.1039/D5CC07318A
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