Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 21, Issue 3, Pages 1262-1268Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201404624
Keywords
batteries; electrochemistry; lithium; mesoporous materials; spinel phases
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Funding
- National Natural Science Foundation of China [51202004]
- Nature Science Foundation of Anhui Province [KJ2013A051]
- CAS Key Laboratory of Materials for Energy Conversion [2014001]
- Anhui University of Technology [2013008, 2013009]
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In this work, we put forward a facile yet efficient room-temperature synthetic methodology for the smart fabrication of mesoporous nanocrystalline ZnMn2O4 in macro-quality from the birnessite-type MnO2 phase. A plausible reduction/ion exchange/re-crystallization mechanism is tentatively proposed herein for the scalable synthesis of the spinel phase ZnMn2O4. When utilized as a high-performance anode for advanced Li-ion battery (LIB) application, the as-synthesized nanocrystalline ZnMn2O4 delivered an excellent discharge capacity of approximately 1288mAhg(-1) on the first cycle at a current density of 400mAg(-1), and exhibited an outstanding cycling durability, rate capability, and coulombic efficiency, benefiting from its mesoporous and nanoscale structure, which strongly highlighted its great potential in next-generation LIBs. Furthermore, the strategy developed here is very simple and of great importance for large-scale industrial production.
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