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Critical surface strain regime for stable and active epitaxial platinum oxygen reduction electrocatalysts
2 July 2026 at 01:00
Nature Energy, Published online: 02 July 2026; doi:10.1038/s41560-026-02108-4
Manipulating surface strain in epitaxial transition metal films can enhance electrocatalytic activity, yet maintaining long-term performance is challenging due to irreversible strain relaxation. Here the authors identify a thickness-dependent critical strain in epitaxial Pt/Ir films that optimizes stability and activity for the oxygen reduction reaction.
