Preparation and Supercapacitive Performance of Three-dimensional Graphene/Poly(aniline-co-pyrrole) Composite
ZHI Xin1, PENG Tongjiang2,3, SUN Hongjuan3, WANG Jiande1
1 School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010; 2 Center of Forecasting and Analysis, Southwest University of Science and Technology, Mianyang 621010; 3 Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010;
Abstract: Three-dimensional graphene/poly(aniline-co-pyrrole) composite(3DAP) was prepared by one-step hydrothermal method using a suspension of graphene oxide and poly(aniline-co-pyrrole) as precursor. X-ray diffraction(XRD), Raman spectroscopy(Raman), Fourier transform infrared spectra(FT-IR), scanning electronic microscopy(SEM), transmission electron microscope(TEM) and electrochemical measurements were performed to investigate the structure, morphology and supercapacitive performance of the composite. The result showed that 3DAP presented three dimensional structure and granular poly(aniline-co-pyrrole) were dispersed in the pores uniformly. The capacities reached 628.5 F·g-1 and 384 F·g-1 at 0.5 A·g-1 and 20 A·g-1. The retention rate was found to be 86.1% after 1 000 times of charging and discharging cycle at 1 A·g-1. The results indicated that the composite showed good rate performance and cycle stability and its supercapacitive performance was far better than the 3DGS and poly(aniline-co-pyrrole).
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2017, Vol. 31 
