Acta Phys. -Chim. Sin. ›› 2011, Vol. 27 ›› Issue (02): 455-460.doi: 10.3866/PKU.WHXB20110228

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

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
  • 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).


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