Citation: Wang Peng, Li Chunyang, Wang Weigang, Wang Jing, Zhu Yusong, Wu Yuping. Hollow Co₉S₈ from metal organic framework supported on rGO as electrode material for highly stable supercapacitors[J]. Chinese Chemical Letters, ;2018, 29(4): 612-615. doi: 10.1016/j.cclet.2018.01.051 shu

Hollow Co₉S₈ from metal organic framework supported on rGO as electrode material for highly stable supercapacitors

Wang Peng ^a,b ,
Li Chunyang ^b ,
Wang Weigang ^b ,
Wang Jing ^b ,
Zhu Yusong ^b,, ,
Wu Yuping ^a,b,,

a.
State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
b.
School of Energy Science and Engineering & Institute for Advanced Materials, Nanjing Tech University, Nanjing 211816, China

Corresponding author: Zhu Yusong, zhuys@njtech.edu.cn Wu Yuping, wuyp@fudan.edu.cn
Received Date: 2 January 2018
Revised Date: 24 January 2018
Accepted Date: 25 January 2018
Available Online: 1 April 2018

Figures(3)

Metal sulfides as a feasible candidate with high specific capacitance for supercapacitors suffer from sluggish ion/electron transport kinetics and rapid capacitance fading. Herein, we demonstrate a method to fabricate a composite of reduced graphene oxide (rGO) with hollow Co₉S₈ derived from metal organic framework (MOF). Due to the combined highly conductive rGO substrates and hollow shell, the prepared rGO/Co₉S₈ composite exhibits a high specific capacitance of 575.9 F/g at 2 A/g and 92.0% capacitance retention after 9000 cycles. Its excellent electrochemical performance provides great promise for application, and this versatile method can be extended to prepare other similar nanocomposite.
- Cobalt sulfides,
- Metal organic framework,
- Reduced graphene oxides,
- Supercapacitors,
- Energy storage
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Hollow Co9S8 from metal organic framework supported on rGO as electrode material for highly stable supercapacitors

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Hollow Co₉S₈ from metal organic framework supported on rGO as electrode material for highly stable supercapacitors