Site-specific synergy by heteronuclear microenvironment atomic editing for oxygen reduction reaction.

ABSTRACT: Although iron-nitrogen-carbon catalysts are appealing for use in the oxygen reduction reaction, achieving high activity and a long lifetime remains a persistent challenge. This necessitates the precise modulation of the active sites' microenvironment. Herein, we present a microenvironment atomic editing strategy for accessing heteronuclear triatomic Fe and Co sites of Fe₁Co₂N₇O₁ supported on a nitrogen-doped carbon matrix (Fe₁Co₂/NC). Its performance is boosted by the orbital hybridization between Fe and Co atoms, which alters the d band centers to push the activity (half-wave potential of 0.94 V in alkaline and 0.88 V in acid conditions) and stability boundaries to a high level. The optimized metal-adsorbate interactions an

SUBMITTER: Ji S 

PROVIDER: S-EPMC12748768 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature