Superior high rate capability of MgMn2O4/rGO nanocomposites as cathode materials for aqueous rechargeable magnesium ion batteries

Guang Liu; Qingguo Chi; Yongquan Zhang; Qingguo Chen; Changhai Zhang; Kai Zhu; Dianxue Cao

doi:10.1039/C8CC05366A

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Superior high rate capability of MgMn₂O₄/rGO nanocomposites as cathode materials for aqueous rechargeable magnesium ion batteries†

Guang Liu,^a Qingguo Chi,

^a Yongquan Zhang,

*^abc Qingguo Chen,^a Changhai Zhang,^ac Kai Zhu^b and Dianxue Cao

*^b

Author affiliations

* Corresponding authors

^a Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, P. R. China

^b Key Laboratory of Superlight Materials and Surface Technology (Ministry of Education), College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
E-mail: caodianxue@hrbeu.edu.cn

^c School of Science, Harbin University of Science and Technology, Harbin 150080, P. R. China
E-mail: yqzhang@hrbust.edu.cn

Abstract

Incorporation of reduced graphene oxide (rGO) optimizes the interfacial properties of MgMn₂O₄ and improves the Mg²⁺ diffusion in the electrode. This results in enhanced specific capacity and rate capability. MgMn₂O₄/rGO nanocomposites show a large discharge specific capacity of 140.1 mA h g⁻¹ at a current density of 1000 mA g⁻¹.

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Article information

DOI: https://doi.org/10.1039/C8CC05366A
Article type: Communication
Submitted: 03 Jul 2018
Accepted: 31 Jul 2018
First published: 01 Aug 2018

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Chem. Commun., 2018,54, 9474-9477

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Superior high rate capability of MgMn₂O₄/rGO nanocomposites as cathode materials for aqueous rechargeable magnesium ion batteries

G. Liu, Q. Chi, Y. Zhang, Q. Chen, C. Zhang, K. Zhu and D. Cao, Chem. Commun., 2018, 54, 9474 DOI: 10.1039/C8CC05366A

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Chemical Communications