Exclusive Se-O Coordination and Fe-doping Complementation: A Catalytic Strategy for Enhanced Sulfur Redox in Li-S Batteries.

ABSTRACT: Developing efficient electrocatalysts to accelerate redox kinetics and suppress lithium polysulfides (LiPSs) shuttling remains a key challenge for lithium-sulfur batteries (LSBs). Although transition-metal-oxides exhibit strong adsorption for the LiPSs, their application is impeded by sluggish Li₂S conversion. Herein, a catalytic strategy is proposed for enhanced sulfur redox in LSBs by complementing exclusive Se-O coordination and Fe-doping in spinel Co₃O₄ (Fe_0.1Co_2.9O₄-Se) electrocatalyst. This engineered intersecting-porous nanoarchitecture, fabricated via an etching-carbonization method, facilitates electron/mass transport and exposes abundant electroactive sites. Fe³⁺ substitution at octahedral Co³⁺

SUBMITTER: Yang Z 

PROVIDER: S-EPMC12904079 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature