Electro-deposition of CoNi2S4 flower-like nanosheets on 3D hierarchically porous nickel skeletons with high electrochemical capacitive performance

Ternary cobalt nickel sulfide (CoNi 2 S 4 ) flower-like nanosheets are directly grown on three dimensional (3D) hierarchically porous nickel skeletons by one-step electro-deposition. The resultant 3D porous Ni/CoNi 2 S 4 composites could serve as binder-free integrated electrodes for supercapacitors...

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Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2015-11, Vol.3 (45), p.2335-2341
Main Authors: Wang, Tao, Zhao, Bo, Jiang, Hong, Yang, Hai-Peng, Zhang, Kai, Yuen, Matthew M. F, Fu, Xian-Zhu, Sun, Rong, Wong, Ching-Ping
Format: Article
Language:English
Subjects:
Electrodes
Foams
Nanostructure
Networks
Nickel
Renewable energy
Resultants
Sulfides
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container_end_page 2341
container_issue 45
container_start_page 2335
container_title Journal of materials chemistry. A, Materials for energy and sustainability
container_volume 3
creator Wang, Tao
Zhao, Bo
Jiang, Hong
Yang, Hai-Peng
Zhang, Kai
Yuen, Matthew M. F
Fu, Xian-Zhu
Sun, Rong
Wong, Ching-Ping
description Ternary cobalt nickel sulfide (CoNi 2 S 4 ) flower-like nanosheets are directly grown on three dimensional (3D) hierarchically porous nickel skeletons by one-step electro-deposition. The resultant 3D porous Ni/CoNi 2 S 4 composites could serve as binder-free integrated electrodes for supercapacitors, which exhibit higher capacitance than those of 3D porous Ni/Co 9 S 8 , 3D porous Ni/Ni 3 S 2 , Ni foam/CoNi 2 S 4 and smooth Ni/CoNi 2 S 4 electrodes. Furthermore, the 3D porous Ni/CoNi 2 S 4 electrodes demonstrate better electrochemical reversibility and excellent rate capability. The super electrochemical capacitive behavior might be attributed to the highly interconnected conductive networks of 3D hierarchically porous Ni scaffold supported CoNi 2 S 4 flower-like nanosheets with a large specific area and highly active sites. Electro-deposited CoNi 2 S 4 nanosheets on 3D hierarchically porous nickel skeletons demonstrate excellent electrochemical capacitive performance.
doi_str_mv 10.1039/c5ta04705f
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source Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list)
subjects Electrodes
Foams
Nanostructure
Networks
Nickel
Renewable energy
Resultants
Sulfides
title Electro-deposition of CoNi2S4 flower-like nanosheets on 3D hierarchically porous nickel skeletons with high electrochemical capacitive performance
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