通过电化学沉积法制备得到聚苯胺/炭微球( PANI/CMS)复合电极材料,通过场发射扫描电子显微镜和红外光谱对PANI/CMS复合材料进行形貌和结构表征。并采用循环伏安、恒电流充放电、电化学阻抗谱及循环寿命测试等技术考察其电化学行为。结果表明:PANI均匀包覆于CMSs表面;在电流密度为1 A·g-1时,复合材料的比电容达到206 F·g-1;PANI/CMS复合材料表现出优异的电化学稳定性。说明PANI/CMS复合材料有望作为电极材料用于超级电容器。
A polyaniline-carbon microsphere ( PANI-CMS ) hybrid was prepared by an electrochemical deposition method and used as an electrode for supercapacitors. Field emission scanning electron microscopy and Fourier transform infra-red spectroscopy were used to characterize its morphology and structure. The supercapacitive performance of the hybrid was investigated by cyclic voltammetry, galvanostatic charge/discharge, electrochemical impedance spectroscopy and cycling tests. Results indicate that polya-niline is uniformly coated on the outer surfaces of the CMSs by the electrochemical deposition. The hybrid has a specific capacitance of 206 F·g-1 at a current density of 1 A·g-1 . It has a higher specific capacitance and more stable cycle performance than PANI, which is ascribed to a synergistic effect between the PANI and the CMSs.
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