Spin polarization induced rapid reconstruction of transition metal oxide for efficient water electrolysis.

ABSTRACT: Although high-valent metal hydroxyl oxides formed in situ through electrochemical oxidation of the metal oxide matrix are key active sites for the oxygen evolution reaction (OER) in transition metal oxides, such a sluggish structural reconstruction largely hinders the electrocatalytic performance. Herein, we present a novel spin polarization engineering strategy to accelerate the formation of high-valent CoOOH, thereby significantly enhancing the OER performance. Through strategic substitutional doping of Mn atoms into the CoO lattice and subsequent confinement of the resulting bimetallic oxides within hollow mesoporous carbon spheres (Mn-CoO/HMCS), the as-prepared catalyst demonstrates markedly enhanced electrocatalytic activity, delivering approximately 5.9-fold higher mass activi

SUBMITTER: Chen ZQ 

PROVIDER: S-EPMC12265186 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature