Journal
RSC ADVANCES
Volume 5, Issue 89, Pages 72495-72499Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra15464b
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Funding
- National Natural Science Foundation of China [U1401246, 51474110, 51474077, 51364004]
- Guangxi Nature Science Foundation [2013GXNSFDA019027, 2013GXNSFAA019032]
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Flower-like 3D MnO2 ultrathin nanosheets were synthesized by direct growth of MnO2 on carbon paper (CP) through a facile electro-deposition method. When applied as a self-supporting, binder-free cathode material for rechargeable non-aqueous lithium-oxygen batteries, the as-prepared MnO2/CP electrode exhibited comparable catalytic performance (discharge capacity of 5132 mA h g(-1) at a current density of 500 mA g(-1)) and long cycle stability (up to 125 cycles with controlling capacity of 500 mA h g(-1)). The superior performance is proposed to be associated with the 3D nanoporous structures and abundant oxygen defects as well as the absence of side reactions related to carbon based conductive additives and binders.
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