Construction of MnO2- Mn3O4 heterostructures to facilitate high-performance aqueous magnesium ion energy storage

Xueli Chen; Lu Han; Guangzhen Zhao; Litao Zhao; Guoliang Gao; Lianghao Yu; Yanjiang Li; Xiuyang Shan; Junfeng Li; Xinjuan Liu; Guang Zhu

doi:10.1039/d3cc06199j

Construction of MnO₂- Mn₃O₄ heterostructures to facilitate high-performance aqueous magnesium ion energy storage

Chem Commun (Camb). 2024 Mar 12;60(22):3067-3070. doi: 10.1039/d3cc06199j.

Authors

Xueli Chen^{1

2}, Lu Han¹, Guangzhen Zhao¹, Litao Zhao¹, Guoliang Gao¹, Lianghao Yu¹, Yanjiang Li¹, Xiuyang Shan¹, Junfeng Li³, Xinjuan Liu⁴, Guang Zhu^{1

2}

Affiliations

¹ Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, PR China. 982563331@qq.com.
² School of Materials Science and Engineering, Anhui Polytechnic University, Wuhu 241000, PR China.
³ College of Logistics Engineering, Shanghai Maritime University, Shanghai 201306, PR China.
⁴ School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.

PMID: 38386357
DOI: 10.1039/d3cc06199j

Abstract

MnO₂-Mn₃O₄ heterostructure materials are applied in aqueous magnesium ion energy storage for the first time. The heterostructure yields an exceptionally high pseudocapacitance contribution, resulting in a specific capacitance of 313.5 F g^-1 at 1 A g^-1, which contrasts with that of MnO₂ (108.8 F g^-1) and Mn₃O₄ (123.5 F g^-1). Additionally, it shows potential for practical applications as a cathode for magnesium ion hybrid supercapacitors (MHS).