Synthesis of SnO2/RGO/PANI Ternary Composites and Its Electrochemical Behaviors
SnO2 /RGO/PANI ternary composites were prepared by means of a two-step method including the synthesis of well-dispersed SnO2 /RGO and the in-situ chemical oxidative polymerization of aniline. Morphologies and microstructures of the resulting product were characterized by Fourier transform infrared (FT-IR) spectrometer. X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). Electrochemical behaviors of the ternary composites as a single electrode of supercapacitors were investigated by cyclic vojtammogram (CV), galvanos-tatic charge/discharge tests and electrochemical impedance techniques. The results show that the ternary composites exhibit a maximum specific capacitance of 424. BF/g, which is greater than the specific capacitance of SnCWRGO binary composites. Furthermore, specific capacitance of the sample increases with increasing amount of PANI in the ternary composites. The positive synergy effect between the three components might enhance the capacitive performance.
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万方数据
维普
