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过程工程学报 ›› 2016, Vol. 16 ›› Issue (2): 341-345.DOI: 10.12034/j.issn.1009-606X.215386

• 材料工程专栏 • 上一篇    下一篇

三维氧化石墨烯-Ag/泡沫镍复合材料的制备及其电化学性能

常建霞 酒红芳 焦红倩 张少梅 武世梅 宋霜   

  1. 中北大学理学院 中北大学理学院 中北大学理学院 中北大学理学院 中北大学理学院 中北大学理学院
  • 收稿日期:2015-11-18 修回日期:2015-12-25 出版日期:2016-04-20 发布日期:2016-12-22
  • 通讯作者: 酒红芳

Synthesis and Electrochemical Performance of 3D Redox Graphene Oxide-Ag/Nickel

CHANG Jian-xia JIU Hong-fang JIAO Hong-qian ZHANG Shao-mei WU Shi-mei SONG Shuang   

  1. College of science,North university of China College of science,North university of China College of science,North university of China College of science,North university of China College of science,North university of China College of science,North university of China
  • Received:2015-11-18 Revised:2015-12-25 Online:2016-04-20 Published:2016-12-22
  • Contact: JIU Hong-fang

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被引次数

3

摘要： 采用改进的Hummer法制备氧化石墨(GO)，以干燥浸泡法制备三维氧化石墨烯(rGO)-Ag/泡沫镍(NF)复合材料，对其物相、形貌和组成进行分析，研究了其电化学性能. 结果表明，复合材料呈疏松多孔结构，Ag颗粒直径为200 nm，电流密度为5 mA/cm2时初次比容量为1.59 F/cm2，循环1000次后为初始容量的70%，循环稳定性良好.

关键词: 干燥浸泡法, 氧化石墨烯-Ag/泡沫镍复合材料, 结构, 电化学性能, 超级电容器

Abstract: Graphite oxide (GO) was prepared by a modified Hummer method, and three-dimensional redox graphene oxide-Ag/nickel foam (rGO-Ag/NF) composite prepared by dry immersion method. Its crystalline phase, morphology and composition were characterized, and electrochemical properties analyzed, such as galvanostatic charge-discharge and cyclic voltammogram. The results showed that rGO-Ag/NF composite had a porous structure in which the diameter of Ag particles was 200 nm. At the current density of 5 mA/cm2, its specific capacitance was estimated as 1.59 F/cm2. The composite also had a retention rate of 70% of its initial capacitance after 1000 cycles, indicating excellent recycling stability.

Key words: dry immersion, redox graphene oxide-Ag/nickel foam composite, structure, electrochemical property, supercapacitor

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