Breaking linear scaling relationships in oxygen evolution via dynamic structural regulation of active sites.

ABSTRACT: The universal linear scaling relationships between the adsorption energies of reactive intermediates limit the performance of catalysts in multi-step catalytic reactions. Here, we show how these scaling relationships can be circumvented in electrochemical oxygen evolution reaction by dynamic structural regulation of active sites. We construct a model Ni-Fe₂ molecular catalyst via in situ electrochemical activation, which is able to deliver a notable intrinsic oxygen evolution reaction activity. Theoretical calculations and electrokinetic studies reveal that the dynamic evolution of Ni-adsorbate coordination driven by intramolecular proton transfer can effectively alter the electronic structure of the adjacent Fe active centre during the catalytic cycle. This dynamic dual-site co

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC11790916 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature