Issue 71, 2017

Three dimensional Ni1+xFe2−xS4-graphene-2D-MoSe2 as an efficient material for supercapacitors

Abstract

A ternary Ni1+xFe2−xS4-graphene-2D-MoSe2 (Ni1+xFe2−xS4-g-MoSe2) nanocomposite was designed and fabricated through a facile two-step method. Well-dispersed Ni1+xFe2−xS4 nanoparticles on graphene sheets were achieved using a hydrothermal method followed by coating with MoSe2 nanosheets using in situ adsorption. The synergistic effect of the three components present in Ni1+xFe2−xS4-g-MoSe2 yielded enhanced electrochemical properties in terms of high specific capacitance reaching up to 2108 F g−1 at a current density of 1 A g−1, with capacity retention of 93.3% after 4000 cycles at the high charge–discharge current density of 5 A g−1. These outstanding capacitance features were mainly attributed to the unique Ni1+xFe2−xS4-g-MoSe2 nanostructure, allowing easy access to the pseudocapacitive species and fast ion/electron transfer. Overall, the prepared 3D nanocomposite is promising as an electrode material for advanced supercapacitors.

Graphical abstract: Three dimensional Ni1+xFe2−xS4-graphene-2D-MoSe2 as an efficient material for supercapacitors

Supplementary files

Article information

Article type
Paper
Submitted
09 Aug 2017
Accepted
10 Sep 2017
First published
22 Sep 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 45170-45176

Three dimensional Ni1+xFe2−xS4-graphene-2D-MoSe2 as an efficient material for supercapacitors

X. Tang, Z. Yang and J. Liang, RSC Adv., 2017, 7, 45170 DOI: 10.1039/C7RA08785C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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