Acta Phys. -Chim. Sin. ›› 2015, Vol. 31 ›› Issue (1): 90-98.doi: 10.3866/PKU.WHXB201411202

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

Preparation and Supercapacitive Performance of Three-Dimensional Reduced Graphene Oxide/Polyaniline Composite

WANG Jian-De1, PENG Tong-Jiang2,3, XIAN Hai-Yang3, SUN Hong-Juan3   

  1. 1. School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621000, Sichuan Province, P. R. China;
    2. Center of Forecasting and Analysis, Southwest University of Science and Technology, Mianyang 621010, Sichuan Province, P. R. China;
    3. Institute of Mineral Materials & Application, Southwest University of Science and Technology, Mianyang 621000, Sichuan Province, P. R. China
  • Received:2014-10-20 Revised:2014-11-19 Published:2014-12-25
  • Contact: PENG Tong-Jiang E-mail:tjpeng@swust.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (41272051), Doctor Fund Project by Southwest University of Science and Technology, China (11ZX7135), Postgraduate Innovation Fund Project by Southwest University of Science and Technology, China (14ycx003), and Miaozi Subtopic Project for the Construction of Mianyang Sci-Tech City University Students' Innovative Undertaking Club Demonstration Site, China (2014RZ0038-15).

Abstract:

Three-dimensional reduced graphene oxide (RGO)/polyaniline (PANI) composite has been prepared in a single step by the ultrasonic irradiation of a suspension of graphite oxide gels and PANI nanowire using a hydrothermal method. Scanning electronic microscopy (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), X-ray photoelectron spectra (XPS), and electrochemical measurements were performed to investigate the morphology, structure, and supercapacitive performance of the composite. The result showed that the composite maintained the basic morphology of RGO, and that the PANI was inlayed inside the RGO network. An outstanding supercapacitive performance was obtained when the mass ratio of graphite oxide and PANI was 1:1. Furthermore, the capacities reached 758 and 400 F·g-1 at 0.5 and 30A·g-1, respectively. The retention rate was found to be 86% after 1000 cycles at 1 A·g-1. These results therefore indicate that this new composite possesses good rate capability and cycle stability, and that its supercapacitive performance is better than that of pure RGO or PANI. The excellent supercapacitive performance of this composite can be attributed to the mutual synergy of RGO and PANI.

Key words: Graphite oxide gel, Polyaniline, Hydrothermal method, Three-dimensional reduced graphene oxide/polyaniline, Supercapacitive performance

MSC2000: 

  • O646