Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 13, Issue 7, Pages 698-700Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2011.04.013
Keywords
Lithium-air batteries; MnO2/MWNT cathodes; Electrochemical performance; Air electrodes
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Funding
- National Key Project on Basic Research [2009CB939801, 2011CB935904]
- Natural Science Foundation of Fujian Province [2010J05041]
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences [SZD09003]
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Manganese dioxide (MnO2) nanoflakes were uniformly coated on multi-walled carbon nanotubes (MWNTs) by immersing MWNTs into an aqueous KMnO4 solution. Directly using the MnO2/MWNT composites (containing 40 wt.% MWNTs) as lithium-air battery electrodes enhances kinetics of the oxygen reduction and evolution reactions, thereby effectively improving energy efficiency and reversible capacity. (C) 2011 Elsevier B.V. All rights reserved.
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