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石墨烯-氧化锌复合材料及其电化学性能 被引量：6

Fabrication and Electrochemical Properties of Graphene-ZnO Nanocomposite
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摘要 采用Hummers法制得氧化石墨,再经溶剂热法一步合成石墨烯-氧化锌复合材料(GZO).在6 mol·L-1氢氧化钾电解液中,测试循环伏安曲线、交流阻抗谱图和计时电位曲线.结果表明,石墨烯-氧化锌复合材料电极的比电容为115 F·g-1,具有较好的循环寿命,改善了超级电容器的性能. in this work, the graphene-ZnO nanocomposite was successfully synthesized through a one-step solvothermal approach, using ethylene glycol as the solvent and reducing agent. The ZnO particles could be attached to the surfaces and edges of graphene sheet. The electrochemical performance of the nanocomposite was investigated by performing cyclic voltammetry, A.C. impedance and chronopotentiometry tests in 6 mol. L1 KOH. The results showed that the graphene-ZnO nanocomposite exhibited a nice electrochemical specific capacitance of 115 F·g-1 determined in cyclic voltammetry test, or 71 F·g-1 evaluated in chronopotentiometry test and good reversible charge/discharge behavior.
作者 门传玲 王婉 曹军
机构地区 上海理工大学能源与动力工程学院
出处 《电化学》 CAS CSCD 北大核心 2014年第2期189-193,共5页 Journal of Electrochemistry
基金 上海市自然科学基金项目(No.13ZR1428200)资助
关键词 石墨烯 氧化锌 超级电容器 纳米复合材料 循环伏安测试 graphene ZnO supercapacitors nanocomposite cyclic voltammetry
分类号 O646 [理学—物理化学]
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参考文献17

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同被引文献57

  • 1高翠芹,安从俊,程建平.纳米氧化锌的制备和电化学性能研究[J].电池工业,2006,11(1):5-7. 被引量：4
  • 2胡中华,万翔,刘亚菲,赵国华.改性活性炭双电层电容器电极材料研究[J].电子元件与材料,2006,25(8):11-15. 被引量：9
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引证文献6

二级引证文献7

电化学
2014年 第2期

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