Issue 12, 2017, Issue in Progress
From the journal:

RSC Advances

Novel three-dimensional island-chain structured V2O5/graphene/MWCNT hybrid aerogels for supercapacitors with ultralong cycle life

Wenchao Bi,a   Guohua Gao,*a   Yingjie Wu,a   Huiyu Yang,a   Jichao Wang,a   Yuerou Zhang,a   Xing Liang,a   Yindan Liua  and  Guangming Wu*a  

* Corresponding authors

a Shanghai Key Laboratory of Special Artificial Microstructure, School of Physics Science and Engineering, Tongji University, Shanghai, PR China
E-mail: gao@tongji.edu.cn, gmwu@tongji.edu.cn

Abstract

Novel three-dimensional (3D) island-chain structured vanadium pentoxide (V2O5)/graphene (GN)/multiwalled carbon nanotube (MWCNT) hybrid aerogels (VGMA) are synthesized by a sol–gel method. In this process, V2O5 in situ grows along the surface of both MWCNT and GN by the coordination effect. These two kinds of one-dimensional fibers (V2O5 nanofibers and V2O5 coated MWCNT) and one kind of two-dimensional sheets (GN) co-assemble into a 3D porous island-chain structure. VGMA exhibit enhanced specific capacitance (504 F g−1), large energy density (70 W h kg−1) and outstanding cyclic property (82.9% retention after 32 500 cycles). All these excellent electrochemical properties of ternary VGMA can be attributed to the well-designed nanostructure and synergistic effect of the individual components. This also demonstrates that the unique island-chain nanostructured VGMA can be a good candidate for supercapacitors.

Graphical abstract: Novel three-dimensional island-chain structured V2O5/graphene/MWCNT hybrid aerogels for supercapacitors with ultralong cycle life

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Article information

DOI
https://doi.org/10.1039/C6RA25077G
Article type
Paper
Submitted
11 Oct 2016
Accepted
07 Nov 2016
First published
23 Jan 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 7179-7187

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Novel three-dimensional island-chain structured V2O5/graphene/MWCNT hybrid aerogels for supercapacitors with ultralong cycle life

W. Bi, G. Gao, Y. Wu, H. Yang, J. Wang, Y. Zhang, X. Liang, Y. Liu and G. Wu, RSC Adv., 2017, 7, 7179 DOI: 10.1039/C6RA25077G

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