Issue 23, 2016

Highly stable hollow bifunctional cobalt sulfides for flexible supercapacitors and hydrogen evolution

Abstract

Hollow structures of NiAs-type cobalt sulfide have been synthesized by a facile hydrothermal method. These hollow structured cobalt sulfides exhibit excellent electrochemical properties for supercapacitor applications (867 F g−1) and respectable hydrogen evolution activity. The symmetrical supercapacitor device fabricated using cobalt sulfide nanostructures showed an areal capacitance of 260 mF cm−2 with good flexibility and high temperature stability. The specific capacitance of the supercapacitor is enhanced over 150%, when the temperature is increased from 10 to 70 °C.

Graphical abstract: Highly stable hollow bifunctional cobalt sulfides for flexible supercapacitors and hydrogen evolution

Supplementary files

Article information

Article type
Communication
Submitted
16 Apr 2016
Accepted
17 May 2016
First published
17 May 2016

J. Mater. Chem. A, 2016,4, 9014-9018

Author version available

Highly stable hollow bifunctional cobalt sulfides for flexible supercapacitors and hydrogen evolution

C. K. Ranaweera, Z. Wang, E. Alqurashi, P. K. Kahol, P. R. Dvornic, B. K. Gupta, K. Ramasamy, A. D. Mohite, G. Gupta and R. K. Gupta, J. Mater. Chem. A, 2016, 4, 9014 DOI: 10.1039/C6TA03158G

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