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Facile synthesis of CoNi2S4/Co9S8 composites as advanced electrode materials for supercapacitors

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journal contribution
posted on 31.08.2017 by Fenglin Zhao, Wanxia Huang, Hongtao Zhang, Dengmei Zhou
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.

Funding

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).

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

Applied Surface Science

Volume

426

Pages

1206 - 1212

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.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

08/07/2017

Publication date

2017-07-13

Notes

This paper was published in the journal Applied Surface Science and the definitive published version is available at https://doi.org/10.1016/j.apsusc.2017.07.066.

ISSN

0169-4332

Language

en

Exports