Issue 12, 2017

Amorphous molybdenum sulfide on graphene–carbon nanotube hybrids as supercapacitor electrode materials

Abstract

Herein, we report the application of amorphous molybdenum sulfide (MoSx, x ≈ 3) as the main active material for supercapacitor electrodes. MoSx was deposited at room temperature onto a high specific surface area electrode made of graphene–carbon nanotube hybrids directly grown on carbon paper (GCNT/CP), using an electrochemical deposition method. The MoSx/GCNT/CP electrode showed high specific capacitance. A gravimetric specific capacitance of 414 F g−1 was demonstrated at a constant discharge rate of 0.67 A g−1. The deposition of MoSx onto a conductive, high surface area support played a crucial role for a high specific capacitance. An up to 4.5-fold enhancement in specific capacitance was demonstrated when MoSx was deposited on GCNT/CP as compared to MoSx deposited on a simple carbon paper support. The MoSx/GCNT/CP electrode is suggested to be a novel candidate for supercapacitor applications.

Graphical abstract: Amorphous molybdenum sulfide on graphene–carbon nanotube hybrids as supercapacitor electrode materials

Article information

Article type
Paper
Submitted
07 Dec 2016
Accepted
12 Jan 2017
First published
20 Jan 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 6856-6864

Amorphous molybdenum sulfide on graphene–carbon nanotube hybrids as supercapacitor electrode materials

K. Pham, D. S. McPhail, A. T. S. Wee and D. H. C. Chua, RSC Adv., 2017, 7, 6856 DOI: 10.1039/C6RA27901E

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