Porous cobalt–manganese oxide nanocubes derived from metal organic frameworks as a cathode catalyst for rechargeable Li–O2 batteries

Jian Zhang; Liangjun Wang; Leilei Xu; Xiaoming Ge; Xiao Zhao; Min Lai; Zhaolin Liu; Wei Chen

doi:10.1039/C4NR05865H

Porous cobalt–manganese oxide nanocubes derived from metal organic frameworks as a cathode catalyst for rechargeable Li–O₂ batteries†

Jian Zhang,^ab Liangjun Wang,^c Leilei Xu,^b Xiaoming Ge,^d Xiao Zhao,^b Min Lai,^a Zhaolin Liu*^d and Wei Chen*^bce

* Corresponding authors

^a School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, Jiangsu, China

^b Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore

^c Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore

^d Institute of Materials Research and Engineering (IMRE), Agency of Science, Technology, and Research (A*STAR), 3 Research Link, Singapore 117602, Singapore
E-mail: zl-liu@imre.a-star.edu.sg

^e National University of Singapore (Suzhou) Research Institute, Suzhou, China
E-mail: phycw@nus.edu.sg
Fax: +65-6777 6126
Tel: +65-6516 2921

Abstract

The development of cathode catalysts with a porous structure is essential to design Li–O₂ batteries with a high rate performance and good cycle stability. Herein, spinel-type porous cobalt–manganese oxide (Co–Mn–O) nanocubes derived from metal organic frameworks were employed as an electrocatalyst in a Li–O₂ battery. The battery with the porous Co–Mn–O nanocubes electrode showed a low overpotential and enhanced capacity. The synergistic effects of large specific surface area, porous structure, and the high electrocatalytic activity of the porous Co–Mn–O nanocubes electrode endowed the Li–O₂ battery with a good rate performance and excellent cycle stability up to 100 cycles.

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Article information

DOI: https://doi.org/10.1039/C4NR05865H
Article type: Paper
Submitted: 06 Oct 2014
Accepted: 04 Nov 2014
First published: 10 Nov 2014

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Nanoscale, 2015,7, 720-726

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Porous cobalt–manganese oxide nanocubes derived from metal organic frameworks as a cathode catalyst for rechargeable Li–O₂ batteries

J. Zhang, L. Wang, L. Xu, X. Ge, X. Zhao, M. Lai, Z. Liu and W. Chen, Nanoscale, 2015, 7, 720 DOI: 10.1039/C4NR05865H

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