珊瑚状聚吡咯的制备及其超级电容性能

Preparation of coralloid polypyrrole and its supercapacitive performance

采用化学氧化法以甲苯-4-磺酸钠掺杂制备了珊瑚状聚吡咯。通过FT-IR、SEM等方法对产物进行了结构表征,研究了其电化学电容性能。结果表明:制备的掺杂态聚吡咯具有表面光滑的珊瑚状结构,循环伏安曲线接近于理想的矩形,在充放电整个电位范围内,电位和时间都保持较好的线性关系,单电极比电容可达220F/g。

The coralloid polypyrrole doped with TSNa was successfully sythesized using chemical oxidation synthsis. They were characterized by scanning electron microscopy, filter-grating infrared spectrometer for structure, and electrochemical station for supercapacitive performance. The results indicate that the doped PPy have smoothing surface and coralloid structure, and show excellent supercapacitive performance by the test of cyclic voltammetry and chronopotentionmetry technology characteristics with a maximum specific capacitance of 220 F/g.