Formation of CMK-3/Co3O4 nanosheets on nickel foam with markedly enhanced pseudocapacitive properties

被引：23

作者：

Zhang, Guoxing ^{[1
]}

Chen, Yuemei ^{[1
]}

Jiang, Yingjian ^{[1
]}

Lin, Chuan ^{[2
]}

Chen, Yigang ^{[1
]}

Guo, Haibo ^{[1
]}

机构：

[1] Shanghai Univ, Sch Mat Sci & Engn, Dept Elect Informat Mat, Shanghai 200444, Peoples R China

[2] GE Global Res, China Technol Ctr, Shanghai 201203, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2018年 / 34卷 / 09期

关键词：

CMK-3; Nanosheet; Cobalt oxide; Energy storage; Supercapacitor; HIGH-PERFORMANCE SUPERCAPACITORS; ELECTROCHEMICAL ENERGY-STORAGE; ORDERED MESOPOROUS CARBON; CO3O4; CAPACITORS; NANOWIRES; NANOCOMPOSITE; COMPOSITES; ELECTRODEPOSITION; NANOSTRUCTURES;

D O I：

10.1016/j.jmst.2017.12.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Composites of mesoporous carbon (CMK-3) and Co3O4 nanosheets grown on nickel foam were successfully synthesized by a simple route. A bare Co3O4 film was synthesized for comparison. With the addition of CMK-3, the Co3O4 nanoparticles self-organize and agglomerate into nanosheets, showing a significant influence by CMK-3 on the morphology. The CMK-3/Co3O4 exhibits an optimal specific capacitance of 1131.3 F g(-1) in 3 mol L-1 KOH aqueous electrolyte at 0.5 A g(-1), and a retention ratio of 91% over 3000 cycles, both being much higher than that achieved from the bare Co3O4 film (727 F g(-1) of specific capacitance, and 82% capacitance retention ratio), indicating that the CMK-3/Co3O4 nanosheets are very promising as electrode materials for supercapacitor applications. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.

引用

页码：1538 / 1543

页数：6

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