| 초록 |
Polypyrrole (PPy)/carbon nanotubes (CNTs) composite electrode was fabricated on ceramic fabrics for an electrochemical capacitor application. CNTs were grown on the ceramic fabrics by chemical vapor deposition (CVD) method and PPy was subsequently coated on the CNTs-ceramic fabrics by chemical polymerization. The large surface area and high conductivity of CNTs on porous ceramic fabrics enhanced energy storage capacity. PPy provide not only additional capacitance as an active material but also enhanced adhesion between CNTs and ceramic fabrics. Furthermore, PPy acts as a conducting binder for connecting every individual CNT to increase the capacitance. The morphology of PPy-CNTs on ceramic fabrics was confirmed by SEM and TEM, and the electrochemical characteristic was investigated by cyclic voltammetry and galvanostatic charge-discharge test. |
