Self-assembled Ni/NiO/RGO heterostructures for high-performance supercapacitors

Zhu, Yachao, Chu, Wei, Wang, Ning, Lin, Tao, Yang, Wen, Wen, Jie and Zhao, X.S. (2015) Self-assembled Ni/NiO/RGO heterostructures for high-performance supercapacitors. RSC Advances, 5 95: 77958-77964. doi:10.1039/c5ra14790e

Author Zhu, Yachao
Chu, Wei
Wang, Ning
Lin, Tao
Yang, Wen
Wen, Jie
Zhao, X.S.
Title Self-assembled Ni/NiO/RGO heterostructures for high-performance supercapacitors
Journal name RSC Advances   Check publisher's open access policy
ISSN 2046-2069
Publication date 2015-09-10
Year available 2015
Sub-type Article (original research)
DOI 10.1039/c5ra14790e
Open Access Status Not Open Access
Volume 5
Issue 95
Start page 77958
End page 77964
Total pages 7
Publisher Royal Society of Chemistry
Collection year 2016
Language eng
Formatted abstract
A nano-sized nickel/nickel oxide/RGO (Ni/NiO/RGO) nano-hybrid was generated successfully by using a facile and green sol–gel approach, with the reduced graphene oxide as an effective component, for developing a high-efficiency electrode material with super-capacitance. In the novel hierarchical nano-composite, the combination of metallic nickel interfaced with the nickel oxide was created by the reduction of a nickel nitrate precursor with the carbon of the reduced graphene oxide surface, during the thermal treatment in nitrogen. The electrochemical performances of the Ni/NiO/RGO composite were measured through cyclic voltammetry tests and galvanostatic charge–discharges, as a supercapacitor material. Due to the higher conductivity and synergistic effect, the new hybrid delivered a high specific capacitance of 1027.27 F g−1 at the charge/discharge current density of 2 A g−1, and 720 F g−1 at 20 A g−1. After 1000 uninterrupted cycles at 5 A g−1, the high specific capacitance value can be still stabilized, and kept at 92.95% of the initial value of the specific capacitance for Ni/NiO/RGO. This new nano composite with RGO and Ni/NiO exhibits great promise as an electrode material for supercapacitors.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2016 Collection
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Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
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