Preparation and Characterization of Bayberry-Like Polypyrrole Composites Using Functionalized Mesoporous Silica as In Situ Dopant

摘要

A series of polypyrrole composites with different content of functionalized mesoporous silica, which functioned as the in situ dopant and inorganic host, were prepared. The morphology, structure, thermal stability, and electrical properties of the samples were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, cyclic voltammetry, and galvanostatic charge-discharge test. The content of functionalized mesoporous silica had strongly impact on the morphology and electrical properties of the samples. When the value was 10 wt%, the sample showed a bayberry-like morphology and possessed the maximum electrical conductivity and specific capacitance of 33.33 S/cm and 237.6 F/g, respectively.