Installation of metal clusters adjacent to dual-Fe sites for enhanced oxygen reduction.

ABSTRACT: Fe-based dual-metal center catalysts, featuring intermetallic d-d orbital coupling, have garnered significant interest for enhancing the oxygen reduction reaction (ORR). Modulation of the adjacent microenvironment to dual-metal sites is central to further enhancing the ORR performance, but remains an underexplored area. In this study, an atomic-scale electrocatalyst, consisting of dual-Fe sites and Fe-based atomic clusters (Fe_DS/MC-NC), is synthesized. Driven by these Fe-based atomic clusters, Fe_DS/MC-NC achieves a half-wave potential of up to 0.920 V vs reversible hydrogen electrode (RHE) during the ORR and exhibits a kinetic current density up to 7 times that of commercial Pt/C at 0.880 V vs RHE. Additionally, Fe_DS/MC-NC achieves a maximum power de

SUBMITTER: Liu M 

PROVIDER: S-EPMC12485987 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature