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One-step extend strategy with ionic liquid assisted synthesis of Ni3S4-MoS2 heterojunction electrodes for supercapacitors

Abstract

A convenient, self-assembly, ionic liquid-assisted method for the preparation of Ni3S4-MoS2 heterojunction is reported. The Ni3S4 supporter not only proved high conductivity for heterojunction, but also showed more compatibility with MoS2 allowing long cycle life. The capacity of Ni3S4-MoS2 heterojunction is 985.21 Fg-1 at a current density of 1 Ag-1, and it can retain 573 Fg-1 after 20000 cycles at a current density of 10 Ag-1. The Ni3S4-MoS2 //AC (ASC) device demonstrated high energy density of 58.43 Wh/kg when the power density could reach 385.95 W/kg, and it can still retain 18.75 Wh/kg even at a high power density of 7500 W/kg, revealing its potential and viability for applications. Furthermore, this work provides a novel method to synthesize MxSy-MoS2 (M=Co, Mn et al.) heterojunction materials in one-step. These heterojunction materials could be used in wide fields such as HER catalyst, Li ion battery and supercapacitor electrodes.

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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, Accepted Manuscript
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    One-step extend strategy with 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, Accepted Manuscript , DOI: 10.1039/C7TA02268A

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