Facile preparation of 3D hierarchical coaxial-cable-like Ni-CNTs@beta-(Ni, Co) binary hydroxides for supercapacitors with ultrahigh specific capacitance

Facile preparation of 3D hierarchical coaxial-cable-like Ni-CNTs@beta-(Ni, Co) binary hydroxides... Journal of Colloid and Interface Science 502 (2017) 33–43 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Facile preparation of 3D hierarchical coaxial-cable-like Ni-CNTs@beta- (Ni, Co) binary hydroxides for supercapacitors with ultrahigh specific capacitance Manyu Zhang, Xiaowei Ma, Han Bi, Xuebing Zhao, Chao Wang, Jie Zhang, Yuesheng Li, Renchao Che Laboratory of Advanced Materials, Department of Materials Science, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200438, People’s Republic of China graphical a bstract article i nfo abstract Article history: A facile chemical method for Co doping Ni-CNTs@a-Ni(OH) combining with an in situ phase transforma- Received 15 January 2017 tion process is successfully proposed and employed to synthesize three-dimensional (3D) hierarchical Ni- Revised 2 March 2017 CNTs@b-(Ni, Co) binary hydroxides. This strategy can effectively maintain the coaxial-cable-like structure Accepted 12 April 2017 of Ni-CNTs@a-Ni(OH) and meanwhile increase the content of Co as much as possible. Eventually, the Available online 13 April 2017 specific capacitances and electrical conductivity of the composites are remarkably enhanced. The opti- 1 1 2 mized composite exhibits high specific capacitances of 2861.8 F g at 1 A g (39.48 F cm at Keywords: 2 1 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Colloid and Interface Science Elsevier

Facile preparation of 3D hierarchical coaxial-cable-like Ni-CNTs@beta-(Ni, Co) binary hydroxides for supercapacitors with ultrahigh specific capacitance

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier Ltd
ISSN
0021-9797
eISSN
1095-7103
D.O.I.
10.1016/j.jcis.2017.04.041
Publisher site
See Article on Publisher Site

Abstract

Journal of Colloid and Interface Science 502 (2017) 33–43 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Facile preparation of 3D hierarchical coaxial-cable-like Ni-CNTs@beta- (Ni, Co) binary hydroxides for supercapacitors with ultrahigh specific capacitance Manyu Zhang, Xiaowei Ma, Han Bi, Xuebing Zhao, Chao Wang, Jie Zhang, Yuesheng Li, Renchao Che Laboratory of Advanced Materials, Department of Materials Science, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200438, People’s Republic of China graphical a bstract article i nfo abstract Article history: A facile chemical method for Co doping Ni-CNTs@a-Ni(OH) combining with an in situ phase transforma- Received 15 January 2017 tion process is successfully proposed and employed to synthesize three-dimensional (3D) hierarchical Ni- Revised 2 March 2017 CNTs@b-(Ni, Co) binary hydroxides. This strategy can effectively maintain the coaxial-cable-like structure Accepted 12 April 2017 of Ni-CNTs@a-Ni(OH) and meanwhile increase the content of Co as much as possible. Eventually, the Available online 13 April 2017 specific capacitances and electrical conductivity of the composites are remarkably enhanced. The opti- 1 1 2 mized composite exhibits high specific capacitances of 2861.8 F g at 1 A g (39.48 F cm at Keywords: 2 1

Journal

Journal of Colloid and Interface ScienceElsevier

Published: Sep 15, 2017

References

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