Efficient PEMWE requires OER catalysts with high activity and stability. By tuning RuO2 lattice constants via Gd doping, Ru-O covalency is optimized. Gd0.08Ru0.92O2 shows low overpotential, excellent durability, suppressed LOM pathways, and mitigated Ru dissolution, enabling robust high-performance water electrolysis.
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T. Zhu, S. Ji, X. Feng, Y. Wu, S. Yin, J. Xu, Z. Yu and X. Pi, Chem. Commun., 2026, Accepted Manuscript , DOI: 10.1039/D5CC07405C
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