Formation of CMK-3/Co_3O_4 nanosheets on nickel foam with markedly enhanced pseudocapacitive properties  

作　　者：Guoxiong Zhang Yuemei Chen Yingjian Jiang Chuan Lin Yigang Chen Haibo Guo 

机构地区：[1]Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University [2]China Technology Center,GE Global Research

出　　处：《Journal of Materials Science & Technology》2018年第9期1538-1543,共6页材料科学技术（英文版）

基　　金：jointly supported by Shanghai Eastern-scholar program

摘　　要：Composites of mesoporous carbon（CMK-3） and Co3 O4 nanosheets grown on nickel foam were successfully synthesized by a simple route. A bare Co3 O4 film was synthesized for comparison. With the addition of CMK-3, the Co3 O4 nanoparticles self-organize and agglomerate into nanosheets, showing a significant influence by CMK-3 on the morphology. The CMK-3/Co3 O4 exhibits an optimal specific capacitance of 1131.3 Fg^（-1） in 3 mol L-1 KOH aqueous electrolyte at 0.5 Ag-1, and a retention ratio of 91% over3000 cycles, both being much higher than that achieved from the bare Co3 O4 film（727 Fg^（-1） of specific capacitance, and 82% capacitance retention ratio）, indicating that the CMK-3/Co3 O4 nanosheets are very promising as electrode materials for supercapacitor applications.Composites of mesoporous carbon（CMK-3） and Co3 O4 nanosheets grown on nickel foam were successfully synthesized by a simple route. A bare Co3 O4 film was synthesized for comparison. With the addition of CMK-3, the Co3 O4 nanoparticles self-organize and agglomerate into nanosheets, showing a significant influence by CMK-3 on the morphology. The CMK-3/Co3 O4 exhibits an optimal specific capacitance of 1131.3 Fg^（-1） in 3 mol L-1 KOH aqueous electrolyte at 0.5 Ag-1, and a retention ratio of 91% over3000 cycles, both being much higher than that achieved from the bare Co3 O4 film（727 Fg^（-1） of specific capacitance, and 82% capacitance retention ratio）, indicating that the CMK-3/Co3 O4 nanosheets are very promising as electrode materials for supercapacitor applications.

关 键 词：CMK-3 NANOSHEET Cobalt oxide Energy storage SUPERCAPACITOR 

分 类 号：TB2[一般工业技术—工程设计测绘]