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Metals 2016, 6(6), 142; doi:10.3390/met6060142

Mechanical Alloying Synthesis of Co9S8 Particles as Materials for Supercapacitors

1
School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
2
School of Bailie Engineering & Technology, Lanzhou City University, Lanzhou 730070, China
3
State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
*
Author to whom correspondence should be addressed.
Academic Editor: Chun-Liang Chen
Received: 6 May 2016 / Revised: 28 May 2016 / Accepted: 31 May 2016 / Published: 16 June 2016
(This article belongs to the Special Issue Mechanical Alloying)
View Full-Text   |   Download PDF [1330 KB, uploaded 16 June 2016]   |  

Abstract

Cobalt sulfide (Co9S8) particles are compounded as the electrode materials of supercapacitors by a mechanical alloying method. They show excellent properties including good cycling stability and high specific capacitance. A supercapacitor is assembled using Co9S8 as the anode and activated carbon (AC) as the cathode. It gains a maximum specific capacitance of 55 F·g−1 at a current density of 0.5 A·g−1, and also an energy density of 15 Wh·kg−1. Those results show that the novel and facile synthetic route may be able to offer a new way to synthesize alloy compounds with excellent supercapacitive properties. View Full-Text
Keywords: Co9S8 particle; mechanical alloying; energy storage and conversion; nanoparticles Co9S8 particle; mechanical alloying; energy storage and conversion; nanoparticles
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Li, B.; Hu, Y.; Li, J.; Liu, M.; Kong, L.; Hu, Y.; Kang, L. Mechanical Alloying Synthesis of Co9S8 Particles as Materials for Supercapacitors. Metals 2016, 6, 142.

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