NDLI: Graphene membrane encapsulated Co$_{3}$O$_{4}$ nanotubes with superior capacity and stability as anode materials for lithium ion batteries

Content Provider	Springer Nature Link
Author	Li, Dong Lu, Qifang Guo, Enyan Wei, Mingzhi Xiu, Zhiliang Ji, Xueyang
Copyright Year	2016
Abstract	The electrospun Co$_{3}$O$_{4}$ nanotubes encapsulated by graphene membrane are successfully synthesized via a novel and efficient method. The Co$_{3}$O$_{4}$ nanotubes with the diameter of ~200 nm are prepared by electrospinning combined with sintering process. Graphene is wrapped on the charge-modified surface of Co$_{3}$O$_{4}$ nanotubes by the mutual electrostatic interactions. The as-prepared graphene/Co$_{3}$O$_{4}$ nanotubes are applied as anode materials for lithium-ion batteries and show the improved rate capacities (up to 430.9 mAh g$^{−1}$ at the current density of 1600 mA g$^{−1}$) and excellent rechargeable stability (961.4 mAh g$^{−1}$ at the current density of 100 mA g$^{−1}$ after 80 cycles). The existence of graphene membrane not only decreases the lithium ion transport path due to serving as the additional transport channel, but also provides the elastic buffer to avoid the agglomeration of the Co$_{3}$O$_{4}$ nanotubes. The nanotubes located in the graphene could effectively prevent the agglomeration of graphene membranes, and consequently keep their high active surface area. The complementary and synergistic effect of Co$_{3}$O$_{4}$ nanotubes and graphene makes a great contribution to the outstanding electrochemical properties.The graphene/Co$_{3}$O$_{4}$ nanotubes composites were applied as anode materials and shown excellent electrochemical performance.
Starting Page	75
Ending Page	84
Page Count	10
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	82
Issue Number	1
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2016-12-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Co$_{3}$O$_{4}$ Nanotubes Anode Lithium ion batteries Ceramics, Glass, Composites, Natural Materials Inorganic Chemistry Optical and Electronic Materials Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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