Polypyrrole/MnO2 composites and their enhanced electrochemical capacitance
作者： Ai-Qin Zhang , Yuan-Hua Xiao , Ling-Zhen Lu , Li-Zhen Wang , Feng Li
DOI: 10.1002/APP.38153
关键词:
摘要: The composites of polypyrrole (PPY) and MnO2 have been prepared through chemical oxidation pyrrole monomer suspension with ammonium peroxysulfate at low temperature. morphology structure materials were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), Transmission microscopy (TEM), thermal gravity analysis - differential (TG-DTG), X-ray diffraction (XRD) measurements. electrochemical properties the composite investigated galvanostatic charge–discharge impedance spectroscopy. specific capacitance electrode is 352.8 F/g a current 8 mA/cm2 in Na2SO4 electrolyte 0.5 mol/L, which much higher than that 246.2 103.5 PPY MnO2, respectively. A convenient effective technique has developed to fabricate promising for designing new capacitors. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
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