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Issue 22, 2017
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One-step extended strategy for the ionic liquid-assisted synthesis of Ni3S4–MoS2 heterojunction electrodes for supercapacitors

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Abstract

A convenient, self-assembly, ionic liquid-assisted method for the preparation of a Ni3S4–MoS2 heterojunction is reported. The Ni3S4 support not only provided high conductivity in the heterojunction for MoS2, but also showed more compatibility with MoS2, allowing a long cycle life. The capacity of the Ni3S4–MoS2 heterojunction is 985.21 F g−1 at a current density of 1 A g−1, and it can retain 573 F g−1 after 20 000 cycles at a current density of 10 A g−1. The Ni3S4–MoS2//AC (ASC) device demonstrated a high energy density of 58.43 W h kg−1 when the power density reached 385.95 W kg−1, and it can retain an energy density of 18.75 W h kg−1 even at a high power density of 7500 W kg−1, revealing its potential and viability for practical applications. Furthermore, this work provides a novel method to synthesize MxSy–MoS2 (M = Co, Mn, etc.) heterojunction materials in one step. These heterojunction materials could be used in a wide range of fields such as in HER catalysts, Li ion batteries and supercapacitor electrodes.

Graphical abstract: One-step extended strategy for the ionic liquid-assisted synthesis of Ni3S4–MoS2 heterojunction electrodes for supercapacitors

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Publication details

The article was received on 14 Mar 2017, accepted on 16 May 2017 and first published on 16 May 2017


Article type: Paper
DOI: 10.1039/C7TA02268A
Citation: J. Mater. Chem. A, 2017,5, 11278-11285
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    One-step extended strategy for the ionic liquid-assisted synthesis of Ni3S4–MoS2 heterojunction electrodes for supercapacitors

    W. Luo, G. Zhang, Y. Cui, Y. Sun, Q. Qin, J. Zhang and W. Zheng, J. Mater. Chem. A, 2017, 5, 11278
    DOI: 10.1039/C7TA02268A

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