Journal
NEW CARBON MATERIALS
Volume 29, Issue 4, Pages 301-308Publisher
ELSEVIER
DOI: 10.1016/S1872-5805(14)60139-6
Keywords
Fe3O4; Nanocomposite; Anode material; Lithium-ion battery
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Funding
- National Natural Science Foundation of China [20806024, 51002051]
- Fundamental Research Funds for the Central Universities [WA1014016]
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Morphology-controlled Fe3O4/carbon nanocomposites were synthesized by a solvothermal reaction followed by calcination under a nitrogen atmosphere. Flower-like structures, dispersed nanoflakes and hollow,microspheres could be readily obtained by adjusting the concentrations of the reactants. Based on the time-dependent structure evolution, a possible mechanism for the formation of the different morphologies under various conditions was discussed. The lithium storage properties of the different Fe3O4/carbon composites were compared. The flower-like sample shows the best electrochemical performance with the highest specific capacity of 227 mAh/g at a current rate of 5 C while hollow microspheres and dispersed nanoflakes have specific capacities of only 45 and 10 mAh/g, respectively.
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