Formation of CMK-3/Co3O4 nanosheets on nickel foam with markedly enhanced pseudocapacitive properties
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2018年第9期
论文作者：Guoxiong Zhang Yuemei Chen Yingjian Jiang Chuan Lin Yigang Chen Haibo Guo
文章页码：1538 - 1543
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.
Guoxiong Zhang1，Yuemei Chen1，Yingjian Jiang1，Chuan Lin2，Yigang Chen1，Haibo Guo1
1. Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University2. China Technology Center,GE Global Research
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.
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