期刊
ELECTROCHIMICA ACTA
卷 56, 期 22, 页码 7460-7466出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.06.113
关键词
Supercapacitor; Electroactive polymer; Carbon nanotubes; Nano composites
资金
- Ministry of Education, Science and Technology [2011-0006268]
- Regional Innovation Center (RIC) of the Ministry of Knowledge (MKE)
- National Research Foundation of Korea (NRF)
- National Research Foundation of Korea [2009-0093249] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Polypyrrole (PPy)/carbon nanotube (CNT) composite electrodes are fabricated on ceramic fabrics for electrochemical capacitor applications. The CNTs are grown on the ceramic fabrics by the chemical vapor deposition (CVD) method and PPy is subsequently coated on them by chemical polymerization. The large surface area and high conductivity of the CNTs on the porous ceramic fabrics enhance their energy storage capacity. PPy provides not only additional capacitance as an active material, but also enhances the adhesion between the CNTs and ceramic fabrics. Furthermore, PPy acts as a conducting binder for connecting every individual CNT to increase the capacitance. The morphology of the PPy-CNTs on the ceramic fabrics is confirmed by SEM and TEM, and the electrochemical characteristics are investigated by cyclic voltammetry and galvanostatic charge-discharge tests. (C) 2011 Elsevier Ltd. All rights reserved.
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