EIS Studies of Polyaniline-Coated Graphite Electrodes for Electrochemical Capacitors

摘要

Considerable current attention has been focused on the subjects of certain conducting polymers,e.g.,polyaniline (PAN) and polypyrrole,because of both fundamental interest and potential applications in the energy storage and conversion systems,electrochromic devices,sensors,anticorrosive coatings and electrocatalysts [1-3].Since PAN is very stable and becomes electronically conducting when it is oxidized via either chemical or electrochemical methods [4,5],this material is considered as a promising material for the application of energy storage devices [6].