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Title: Facile synthesis of CoNi2S4/Co9S8 composites as advanced electrode materials for supercapacitors
Authors: Zhao, Fenglin
Huang, Wanxia
Zhang, Hongtao
Zhou, Dengmei
Keywords: CoNi2S4/Co9S8 composites
Chemical bath deposition
Supercapacitors
Electrode materials
Three-dimensional architecture
Issue Date: 2017
Publisher: © Elsevier
Citation: ZHAO, F. ... et al, 2017. Facile synthesis of CoNi2S4/Co9S8 composites as advanced electrode materials for supercapacitors. Applied Surface Science, 426, pp. 1206-1212.
Abstract: In this paper, a facile chemical bath deposition method was utilized to synthesize three-dimensional nanostructured CoNi2S4/Co9S8 (CNSCS) composites as advanced electrode materials for high performance supercapacitors. CNSCS composites showed remarkable electrochemical performance owing to the high porosity, appropriate pore size distribution, novel architecture and synergistic effect of Ni/Co ions. The electrochemical tests revealed that CNSCS composites exhibited high specific capacitance (1183.3 Fg−1 at the current density of 2 Ag−1), excellent rate performance (74.9% retention with tenfold current density increase) and outstanding cycle life stability. Moreover, the effect of temperature on electrochemical performance of CNSCS composites was investigated and the results indicated the specific capacitance of CoNi2S4/Co9S8 can keep relatively stable in a wide temperature from 0 °C to 50 °C. These results indicated that the synthesized CNSCS composites can be a promising electrode materials candidate for supercapacitors and chemical bath deposition is a promising processing route for CNSCS composites production.
Description: This paper is closed access until 13th July 2018.
Sponsor: This work was financially supported by the Science and Technology Innovation Team of Sichuan Province (No. 2015TD0003), and the Program of Science and Technology Bureau of Sichuan Province (No. 2017GZ0133).
Version: Accepted for publication
DOI: 10.1016/j.apsusc.2017.07.066
URI: https://dspace.lboro.ac.uk/2134/26274
Publisher Link: http://dx.doi.org/10.1016/j.apsusc.2017.07.066
ISSN: 0169-4332
Appears in Collections:Closed Access (Materials)

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