Rapid microwave-assisted synthesis of Mn3O4–graphene nanocomposite and its lithium storage properties

Li Li; Zaiping Guo; Aijun Du; Huakun Liu

doi:10.1039/C2JM15075A

Rapid microwave-assisted synthesis of Mn₃O₄–graphene nanocomposite and its lithium storage properties†

Li Li,^a Zaiping Guo,*^ab Aijun Du*^c and Huakun Liu^a

* Corresponding authors

^a Institute for Superconducting and Electronics Materials, University of Wollongong, Wollongong, Australia
E-mail: zguo@uow.edu.au
Fax: +61 2 42215225

^b School of Mechanical, Materials, and Mechatronic Engineering, University of Wollongong, Wollongong, Australia

^c Centre for Computational Molecular Science, Australian Institute for Bioengineering and Nanotechnology and School of Chemical Engineering, University of Queensland, Queensland, Australia
E-mail: a.du@uq.edu.qu

Abstract

A nanocomposite of Mn₃O₄ wrapped in graphene sheets (GSs) was successfully synthesized via a facile, effective, energy-saving, and scalable microwave hydrothermal technique. The morphology and microstructures of the fabricated GS–Mn₃O₄ nanocomposite were characterized using various techniques. The results indicate that the particle size of the Mn₃O₄ particles in the nanocomposite markedly decreased to nearly 20 nm, significantly smaller than that for the bare Mn₃O₄. Electrochemical measurements demonstrated a high specific capacity of more than 900 mA h g⁻¹ at 40 mA g⁻¹, and excellent cycling stability with no capacity decay can be observed up to 50 cycles. All of these properties are also interpreted by experimental studies and theoretical calculations.

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Article information

DOI: https://doi.org/10.1039/C2JM15075A
Article type: Paper
Submitted: 08 Oct 2011
Accepted: 09 Dec 2011
First published: 12 Jan 2012

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J. Mater. Chem., 2012,22, 3600-3605

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Rapid microwave-assisted synthesis of Mn₃O₄–graphene nanocomposite and its lithium storage properties

L. Li, Z. Guo, A. Du and H. Liu, J. Mater. Chem., 2012, 22, 3600 DOI: 10.1039/C2JM15075A

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Journal of Materials Chemistry