Electron-injection-engineering Induced Dual-phase MoOF/MoOF Heterostructure for Magnesium Storage

Overview

Journal Natl Sci Rev

Date 2024 Aug 12

PMID 39131923

Authors

Weixiao Wang

Fangyu Xiong

Shaohua Zhu

Mengyu Yan

Xiaobin Liao

Kesong Yu

Lianmeng Cui

Jinghui Chen

Junjun Wang

Ruoqi Lan

Jun Xie

Qinyou An

Liqiang Mai

Affiliations

Soon will be listed here.

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 Mg 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 MoOF/MoOF heterostructure to accelerate Mg diffusion. The electron injection strategy triggers weak Jahn-Teller distortion in MoO octahedra and reorganization of the Mo 4d-orbital, leading to a partial phase transition from orthorhombic phase MoOF to cubic phase MoOF. As a result, the designed heterostructure generates a built-in electric field, simultaneously improving its electronic conductivity and ionic diffusivity by at least one order of magnitude compared to MoOF and MoOF. Importantly, the assembled MoOF/MoOF//Mg full cell exhibits a remarkable reversible capacity of 172.5 mAh g at 0.1 A g, pushing forward the orbital-scale manipulation for high-performance RMBs.

Citing Articles

MoOF/MoOF heterostructures for high-rate magnesium-ion battery cathodes.

He Z, De Volder M Natl Sci Rev. 2024; 11(12):nwae390.

PMID: 39660300 PMC: 11630285. DOI: 10.1093/nsr/nwae390.

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