Controllable synthesis of Fe2O3-carbon fiber composites via a facile sol-gel route as anode materials for lithium ion batteries

Controllable synthesis of Fe2O3-carbon fiber composites via a facile sol-gel route as anode... Article history: The Fe O -carbon fiber composites were prepared by a facile sol-gel method. The uniform distribu- 2 3 Received 6 May 2017 tion of Fe O grains on the surface of carbon fibers was confirmed by field emission scanning electron 2 3 Received in revised form 10 July 2017 microscopy and transmission electron microscopy. The impact of the Fe O content in composite materi- 2 3 Accepted 8 August 2017 als on electrochemical performance was also investigated in this study. The results show that the capacity Available online 12 August 2017 degradation during cycling is associated with the content of Fe O in composite materials. Comparative 2 3 study of three composite samples with different Fe O contents revealed that the best electrochemical 2 3 Keywords: performance with good cycling stability, high reversible capacity and improved rate capability was exhib- Fe O @carbon fiber composites 2 3 −1 ited by the Fe O @carbon fiber sample. Even after 150 cycles at a constant current density of 50 mA g , a 2 3 Anode materials −1 high reversible discharge capacity of 634 mAh g can be achieved, which is comparable to its theoretical Lithium-ion batteries −1 value http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Controllable synthesis of Fe2O3-carbon fiber composites via a facile sol-gel route as anode materials for lithium ion batteries

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2017.08.070
Publisher site
See Article on Publisher Site

Abstract

Article history: The Fe O -carbon fiber composites were prepared by a facile sol-gel method. The uniform distribu- 2 3 Received 6 May 2017 tion of Fe O grains on the surface of carbon fibers was confirmed by field emission scanning electron 2 3 Received in revised form 10 July 2017 microscopy and transmission electron microscopy. The impact of the Fe O content in composite materi- 2 3 Accepted 8 August 2017 als on electrochemical performance was also investigated in this study. The results show that the capacity Available online 12 August 2017 degradation during cycling is associated with the content of Fe O in composite materials. Comparative 2 3 study of three composite samples with different Fe O contents revealed that the best electrochemical 2 3 Keywords: performance with good cycling stability, high reversible capacity and improved rate capability was exhib- Fe O @carbon fiber composites 2 3 −1 ited by the Fe O @carbon fiber sample. Even after 150 cycles at a constant current density of 50 mA g , a 2 3 Anode materials −1 high reversible discharge capacity of 634 mAh g can be achieved, which is comparable to its theoretical Lithium-ion batteries −1 value

Journal

Applied Surface ScienceElsevier

Published: Jan 1, 2018

References

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