Electron-injection-engineering induced dual-phase MoO_2.8F_0.2/MoO_2.4F_0.6 heterostructure for magnesium storage.

ABSTRACT: Rechargeable magnesium batteries (RMBs) have received increased attention due to their high volumetric capacity and safety. Nevertheless, the sluggish diffusion kinetics of highly polarized Mg²⁺ in host lattices severely hinders the development of RMBs. Herein, we report an electron injection strategy for modulating the Mo 4d-orbital splitting manner and first fabricate a dual-phase MoO_2.8F_0.2/MoO_2.4F_0.6 heterostructure to accelerate Mg²⁺ diffusion. The electron injection strategy triggers weak Jahn-Teller distortion in MoO₆ octahedra and reorganization of the Mo 4d-orbital, leading to a partial phase transition from orthorhombic phase MoO_2.8F_0.2 to cubic phase MoO_2.4F_0.6

SUBMITTER: Wang W 

PROVIDER: S-EPMC11312365 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature