Synergistic Transition-Metal Selenide Heterostructure as a High-Performance Cathode for Rechargeable Aluminum Batteries

Tianming Liu; Guocheng Lv; Meng Liu; Changchun Zhao; Libing Liao; Hao Liu; Jiayan Shi; Jian Zhang; Juchen Guo

doi:10.1021/acsami.2c23205

Synergistic Transition-Metal Selenide Heterostructure as a High-Performance Cathode for Rechargeable Aluminum Batteries

ACS Appl Mater Interfaces. 2023 Mar 8;15(9):11906-11913. doi: 10.1021/acsami.2c23205. Epub 2023 Feb 26.

Authors

Tianming Liu¹, Guocheng Lv², Meng Liu², Changchun Zhao¹, Libing Liao², Hao Liu¹, Jiayan Shi³, Jian Zhang⁴, Juchen Guo^{3

4}

Affiliations

¹ School of Science, China University of Geosciences, Beijing 100083, China.
² Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
³ Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, United States.
⁴ Materials Science and Engineering Program, University of California, Riverside, California 92521, United States.

PMID: 36843285
DOI: 10.1021/acsami.2c23205

Abstract

We synthesize and characterize a rechargeable aluminum battery cathode material composed of heterostructured Co₃Se₄/ZnSe embedded in a hollow carbon matrix. This heterostructure is synthesized from a metal-organic framework composite, in which ZIF-8 is grown on the surface of ZIF-67 cube. Both experimental and theoretical studies indicate that the internal electric field across the heterostructure interface between Co₃Se₄ and ZnSe promotes the fast transport of electron and Al-ion diffusion. As a result, the heterostructured Co₃Se₄/ZnSe demonstrates superior specific capacity and cycle stability compared to the single-phase Co₃Se₄ and ZnSe cathode materials.

Keywords: Al-ion battery; Co3Se4/ZnSe; DFT; MOF-on-MOF; heterostructure; metal selenides.