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首页> 外文期刊>Journal of nano research >Microwave Involved Synthesis of Graphene/Polyaniline Nanocomposite with Superior Electrochemical Performance
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Microwave Involved Synthesis of Graphene/Polyaniline Nanocomposite with Superior Electrochemical Performance

机译：微波法合成具有优异电化学性能的石墨烯/聚苯胺纳米复合材料

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摘要

A microwave irradiation involved process was applied to fabrication of graphene/polyaniline nanocomposite via in-situ polymerization of aniline monomers on graphene sheets. Structure and morphology of composites were characterized through scanning electron microscopy, Raman spectra, X-ray diffraction, Fourier transform infrared spectroscopy and X-ray photoelectron spectra. Electrochemical performances for energy storage applications were examined by cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge/discharge measurements. Owing to the homogeneous coating of polyanilline on the large surface of graphene, graphene/polyaniline composite-based electrode exhibits remarkably enhanced capacitive behavior with a specific capacitance of 429 F/g at 0.2 Ag-1, a good cyclic stability and an excellent conducting behavior, which are much superior to those of individual components of composites. The improved electrochemical behavior of the composite resulting from the irradiation of microwave suggests the promising potentials for supercapacitors.
机译：通过在石墨烯片上进行苯胺单体的原位聚合，将涉及微波辐射的工艺应用于制造石墨烯/聚苯胺纳米复合材料。通过扫描电子显微镜，拉曼光谱，X射线衍射，傅立叶变换红外光谱和X射线光电子能谱对复合材料的结构和形貌进行表征。通过循环伏安法，电化学阻抗谱和恒电流充/放电测量，研究了储能应用的电化学性能。由于在石墨烯的大表面上均聚了聚苯胺涂层，石墨烯/聚苯胺复合材料电极显示出显着增强的电容性能，在0.2 Ag-1时的比电容为429 F / g，良好的循环稳定性和出色的导电性能，其性能远远优于复合材料的各个组分。由微波辐射引起的复合材料电化学性能的改善表明，超级电容器具有广阔的发展前景。

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