Green preparation technique to fabricate MnO2/Ni(OH)2@Ni composite electrode material

被引：0

作者：

Zheng L.-J. ^{[1
,2
]}

Yu D.-D. ^{[3
]}

Zhou J.-G. ^{[1
]}

机构：

[1] State Key Laboratory of Industrial Control Technology, Institute of Cyber-Systems and Control, Zhejiang University, Hangzhou

[2] Department of Chemistry, Zhejiang University, Hangzhou

[3] Hospital of Zhejiang University, Hangzhou

来源：

Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2018年 / 52卷 / 05期

关键词：

Electrochemical performance; Electrode material; Green preparation technique; MnO[!sub]2[!/sub]/Ni(OH)[!sub]2[!/sub;

D O I：

10.3785/j.issn.1008-973X.2018.05.024

中图分类号：

学科分类号：

摘要：

A fast and mild green preparation technique was presented, aiming at the complex preparation process of MnO2/Ni(OH)2@Ni composite electrode material. In the hydrothermal system, the structure and electrochemical performances of MnO2/Ni(OH)2@Ni composite electrode material were analyzed at different reaction temperatures, using MnCl2•4H2O, H2O2 and foamed nickel as raw materials. The uniform MnO2/Ni(OH)2 nanosheets were successfully grown on Ni foam at 90℃ for only 3 h. The test result shows that the prepared MnO2/Ni(OH)2@Ni electrode material in this condition has the good electrochemical performance, including high specific capacitance (2.5 mA/cm2, 7.4 F/cm2), the good rate capability and the good cycling stability (the capacitance retention of 78% after 500 cycles). © 2018, Zhejiang University Press. All right reserved.

引用

页码：1020 / 1024

页数：4

共 9 条

[1] Ma L., Li H., Chang K., Et al., Synthesis of SnS2 nanosheets and their electrochemical performances used as anode materials of Li-ion battery, Journal of Zhejiang University: Engineering Science, 45, 2, pp. 354-357, (2011)
[2] Li H., Li H., Chang K., Et al., Synthesis of Sn/C nanocomposites and their electrochemical performances as anode materials of Li-ion battery, Journal of Zhejiang University: Engineering Science, 45, 5, pp. 919-922, (2011)
[3] Lian H.-Q., Wang J.-M., Chang X., Et al., Structure and electrochemical performance of cobalt substituted alpha nickel hydroxide, Journal of Zhejiang University: Engineering Science, 42, 7, pp. 1223-1226, (2008)
[4] Zhou Q., Cui M., Tao K., Et al., High areal capacitance three-dimensional Ni@Ni(OH)2 foams via in situ oxidizing Ni foams in mild aqueous solution, Applied Surface Science, 365, pp. 125-130, (2016)
[5] Wallar C., Luo D., Manganese dioxide-carbon nanotube composite electrodes with high active mass loading for electrochemical supercapacitors, Journal of Materials Science, 52, 7, pp. 3687-3696, (2017)
[6] Dang W.H., Dong C.J., Zhang Z.F., Self-grown MnO2 nanosheets on carbon fiber paper as high performance supercapacitors electrodes, Electrochimica Acta, 217, pp. 16-23, (2016)
[7] Chen H., Hu L., Yan Y., Et al., One-step fabrication of ultrathin porous nickel hydroxide-manganese dioxide hybrid nanosheets for supercapacitor electrodes with excellent capacitive performance, Advanced Energy Materials, 3, 12, pp. 1636-1646, (2013)
[8] Saha S., Chhetri S., Khanra P., Et al., In-situ hydrothermal synthesis of MnO2/NiO@Ni hetero structure electrode for hydrogen evolution reaction and high energy asymmetric supercapacitor applications, Journal of Energy Storage, 6, pp. 22-31, (2016)
[9] Wang Z., Wang F., Tu J., Et al., Nickel foam supported hierarchical mesoporous MnO2/Ni(OH)2 nanosheet networks for high performance supercapacitor electrode, Materials Letters, 171, pp. 10-13, (2016)

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