Ce~(3+)-Doped Polyaniline Hollow Microspheres as Electrode Material of Supercapacitor

摘要

Polyaniline (PANI) hollow microspheres were fabricated by self-assembly method and further doped with cerium ions (Ce~(3+)). The constitution and morphology of Ce~(3+)-doped PANI (PANI/ Ce~(3+)) were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and Energy dispersive X-ray spectroscopy (EDX) etc. Furthermore, a 2016-type buckle capacitor was assembled and PANI/Ce~(3+) was employed as electrode material. The electrochemical properties of PANI/Ce~(3+) capacitor were measured by cyclic voltammetry (CV), galvanotatic charge-discharge (GCD), electrochemical impedance spectroscopy (EIS) and so on. The PANI/Ce~(3+) capacitor exhibited high specific capacitance and small resistance. The specific capacitance of PANI/Ce~(3+) was 248.2 F/g at current density of 1 mNcm~2.