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Preparation and Electrochemical Performance of Ultra-long MnOOH Nanowires
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Xiaoling CHENG, Luyin HUANG, Kai HU, Haosen CHEN
Journal of the Chinese Ceramic Society | 2020, 48(11) : 1859 - 1864
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Journal of the Chinese Ceramic Society | 2020, 48(11): 1859-1864
• Research Articles •
Preparation and Electrochemical Performance of Ultra-long MnOOH Nanowires
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Xiaoling CHENG, Luyin HUANG, Kai HU, Haosen CHEN
Affiliations
  • School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

    • HUANG Luyin (1993-), female, Master candidate. E-mail:

About Author:

HUANG Luyin (1993-), female, Master candidate. E-mail:

Published: 2020-11-20 doi: 10.14062/j.issn.0454-5648.20200001
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Ultra-long MnOOH nanowire was prepared by a simple hydrothermal process using KMnO4 and ammonium acetate without additional template agents. MnOOH sample was characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, amperometry, constant current charge/discharge characterization and electrochemical impedance spectroscopy. The results show that the length of MnOOH nanowires is more than 10 μm, and the diameter is approximately 20 nm. The specific capacitance is 285 F/g at current density of 1 A/g in 1.0 mol/L Na2SO4 electrolyte, and it can still keep a good cycling stability after 4 000 cycles. The post-capacitance retention rate reaches 96.2%. The MnOOH nanowire as an electrode material has an excellent electron transmission channel, exhibiting a superior ultracapacitor performance, which can have broad application prospects as an electrode material for supercapacitors.

manganese oxyhydroxide  /  hydrothermal method  /  electrochemical performance  /  supercapacitor
成晓玲, 黄露茵, 胡凯, 陈豪森. 超长纳米线状MnOOH电极材料的制备及其电化学性能. 硅酸盐学报, 2020 , 48 (11) : 1859 -1864 . DOI: 10.14062/j.issn.0454-5648.20200001
Xiaoling CHENG, Luyin HUANG, Kai HU, Haosen CHEN. Preparation and Electrochemical Performance of Ultra-long MnOOH Nanowires[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (11) : 1859 -1864 . DOI: 10.14062/j.issn.0454-5648.20200001
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Year 2020 volume 48 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20200001
  • Receive Date：2020-01-01
  • Online Date：2026-10-29
  • Published：2020-11-20
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History
  • Received：2020-01-01
  • Revised：2020-04-10
Funding
Affiliations
    School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

Corresponding:

CHENG Xiaoling (1963-), female, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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