期刊
JOURNAL OF POWER SOURCES
卷 177, 期 2, 页码 665-668出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2007.11.078
关键词
polypyrrole; nation; supercapacitor; conducting polymer
The electrochemical characteristics of polypyrrole doped with either perchlorate or Nation are determined. Polypyrrole doped with Nation ions or perchlorate ions exhibits a specific capacitance of 344 or 355 F g(-1), respectively. Cycle life experiments reveal that the Nafion-doped material retains 98% of the original capacitance after 3000 cycles whereas that doped with perchlorate retains only 70% over this period. Scanning electron microscopy (SEM) before and after long-term cycling, reveals some mechanical degradation. (C) 2008 Published by Elsevier B.V.
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