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Small. 2013 Oct 25;9(20):3433-8. doi: 10.1002/smll.201202697. Epub 2013 May 2.

Preparation of MoS2-coated three-dimensional graphene networks for high-performance anode material in lithium-ion batteries.

Author information

  • 1School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore, Tel: (+65) 67905175; Fax: (+ 65) 67909081, Website: http://www.ntu.edu.sg/home/hzhang.

Abstract

A novel composite, MoS2 -coated three-dimensional graphene network (3DGN), referred to as MoS2 /3DGN, is synthesized by a facile CVD method. The 3DGN, composed of interconnected graphene sheets, not only serves as template for the deposition of MoS2 , but also provides good electrical contact between the current collector and deposited MoS2 . As a proof of concept, the MoS2 /3DGN composite, used as an anode material for lithium-ion batteries, shows excellent electrochemical performance, which exhibits reversible capacities of 877 and 665 mAh g(-1) during the 50(th) cycle at current densities of 100 and 500 mA g(-1) , respectively, indicating its good cycling performance. Furthermore, the MoS2 /3DGN composite also shows excellent high-current-density performance, e.g., depicts a 10(th) -cycle capacity of 466 mAh g(-1) at a high current density of 4 A g(-1).

Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

KEYWORDS:

MoS2; binder-free materials; chemical vapor deposition; graphene networks; lithium-ion batteries

PMID:
23637090
[PubMed]
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