物理化学学报 >> 2011, Vol. 27 >> Issue (02): 455-460.doi: 10.3866/PKU.WHXB20110228

电化学和新能源 上一篇    下一篇

水溶性壳聚糖制备多孔碳/氧化镍复合材料及其电化学电容行为

张海军1, 张校刚1, 原长洲1, 高博1, 孙康2, 傅清宾1, 卢向军1, 蒋剑春2   

  1. 1. 南京航空航天大学材料科学与技术学院, 南京 210016;
    2. 中国林业科学研究院林产化学工业研究所, 南京 210042
  • 收稿日期:2010-09-20 修回日期:2010-11-30 发布日期:2011-01-25
  • 通讯作者: 张校刚 E-mail:azhangxg@163.com
  • 基金资助:

    国家重点基础研究发展计划(973) (2007CB209703)及江苏省生物质能源与材料重点实验室(2010M001)资助项目

Preparation of Water Soluble Chitosan-Based Porous Carbon/NiO Composites and Their Electrochemical Capacitive Behavior

ZHANG Hai-Jun1, ZHANG Xiao-Gang1, YUAN Chang-Zhou1, GAO Bo1, SUN Kang2, FU Qing-Bin1, LU Xiang-Jun1, JIANG Jian-Chun2   

  1. 1. College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China;
    2. Institute of Chemical Industry of Forest Products, Nanjing 210042, P. R. China
  • Received:2010-09-20 Revised:2010-11-30 Published:2011-01-25
  • Contact: ZHANG Xiao-Gang E-mail:azhangxg@163.com
  • Supported by:

    The project was supported by the National Key Basic Research Program of China (973) (2007CB209703) and Key Laboratory of Biomass Energy and Material, Jiangsu Province, China (2010M001).

摘要:

将水溶性壳聚糖碳化得到多孔碳材料, 然后制备了多孔碳/NiO复合材料. 透射电子显微镜(TEM), X射线衍射(XRD)和N2吸-脱附实验等结构表征显示, 材料具有富含介孔的孔道结构. 循环伏安(CV), 恒流充放电等电化学测试表明, 复合材料具有良好的电化学电容性能. 其中Ni/C质量比为2:20时, 复合材料在0.1 A·g-1电流密度下比容量可达355 F·g-1, 而且经过1500次循环比容量仍保持99%左右, 表现出良好的循环稳定性.

关键词: 超级电容器, 壳聚糖, 多孔碳, 氧化镍

Abstract:

Porous carbons were prepared by the carbonization of water soluble chitosan and they were then used to synthesize porous C/NiO composites. Transmission electron microscopy (TEM), X-ray diffraction (XRD), and nitrogen adsorption-desorption experinents were used to characterize the structure and morphology of the products. The results showed that the mesopore-rich composites consisted of NiO crystallites and porous carbon. The electrochemical properties of the porous C/NiO composites were studied by cyclic voltammetry (CV) and galvanostatic charge/discharge measurements. We found that compared with porous carbon, the composites showed superior electrochemical capacitive performance. When the mass ratio of nickel to carbon was 2:20, the composite had a large specific capacitance of 355 F·g-1 at a current density of 0.1 A·g-1 and excellent cyclability with a capacity retention of about 99% after 1500 cycles.

Key words: Supercapacitor, Chitosan, Porous carbon, Nickel oxide

MSC2000: 

  • O646