Ferromagnetic ordering correlated strong metal-oxygen hybridization for superior oxygen reduction reaction activity.

ABSTRACT: The efficiency of transition-metal oxide materials toward oxygen-related electrochemical reactions is classically controlled by metal-oxygen hybridization. Recently, the unique magnetic exchange interactions in transition-metal oxides are proposed to facilitate charge transfer and reduce activation barrier in electrochemical reactions. Such spin/magnetism-related effects offer a new and rich playground to engineer oxide electrocatalysts, but their connection with the classical metal-oxygen hybridization theory remains an open question. Here, using the Mn_xV_yO_z family as a platform, we show that ferromagnetic (FM) ordering is intrinsically correlated with the strong manganese (Mn)-oxygen (O) hybridization of Mn oxides, thus significantly increasing the oxygen

SUBMITTER: Li J 

PROVIDER: S-EPMC10614601 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature