高等学校化学研究 ›› 1998, Vol. 14 ›› Issue (2): 147-152.
The Phenomenon of Mutual Media in Polypyrrole with Electroactive Ions
YANG Chun-he, DONG Shao-jun
- Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
The Phenomenon of Mutual Media in Polypyrrole with Electroactive Ions
YANG Chun-he, DONG Shao-jun
- Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
摘要： The dependence of the differential capacitance of polypyrrole doped with several typical dopants on potential is presented, which shows that the differential capacitance varies with the potential, the doped polypyrroles with electroactive ions give the largest capacitance near their formal potentials, which is attributed to the mutual media for electron transfer between polypyrrole and electroactive dopants. The existence of two conducting phases was observed in the complex capacitance plots. The electroactive anions act as an intra-conducting-phase medium for electron transfer, the electroactive cations act as an inter-conducting phase medium for electron transfer. The mutual media between polypyrrole and redox dopants lead to the increase of the discharging time.