Spherical NiCo2O4/CuS composites for supercapacitor electrodes

被引：22
|
作者：
Tian, Yunyan [2 ]
Su, Zhanhua [1 ,2 ]
Zhao, Zhifeng [1 ]
Cong, Bowen [3 ]
Wang, Meijia [2 ]
机构：
[1] Guangdong Univ Petrochem Technol, Coll Chem, Maoming 525000, Peoples R China
[2] Harbin Normal Univ, Coll Chem & Chem Engn, Harbin 150025, Peoples R China
[3] Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Peoples R China
来源：
MATERIALS LETTERS | 2020年 / 264卷
关键词：
NiCo2O4/CuS; Composite materials; Mesoporous; Supercapacitor; PERFORMANCE;
D O I：
10.1016/j.matlet.2020.127400
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, spherical NiCo2O4/CuS composites was synthesized by hydrothermal method. As electrode material, it possesses high specific capacitance (2169 F g(-1) at 0.5 A g(-1)), while maintaining excellent stability with about 123% capacitance retention after 7000 cycles at 1 A g(-1). The asymmetric supercapacitor based NiCo2O4/CuS electrode exhibits a high energy density of 173.5 W h kg(-1) at at a power density of 360 W kg(-1) and can provide power supply for red LEDs indicator. This is mainly attributed to the synergistic effect of CuS and NiCo2O4, which promotes electron transport and electrolyte ion diffusion. (C) 2020 Elsevier B.V. All rights reserved.
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页数：5
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