Preparation of compact polyaniline films: electrochemical synthesis using agar gel template and charge-storage applications
SCIE
SCOPUS
- Title
- Preparation of compact polyaniline films: electrochemical synthesis using agar gel template and charge-storage applications
- Authors
- Sung, JH; Kim, SJ; Lee, KH
- Date Issued
- 2004-02-16
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- Polyaniline (PANI) is electrochemically synthesized using agar gel as a template (Agar-PANI). The material characteristics and electrochemical behavior of the Agar-PANIs are compared with those of polyaniline synthesized by means of conventional methods (C-PANI). The electrochemical synthesis is monitored using the cyclic potential sweep (CPS) technique. The dependency of the total deposition charge on the number of cycles can be satisfactorily explained with a CPS parameter, n, and is consistent with scanning electron micrographs. The electrical conductivity and the bulk density of the Agar-PANI samples are 1.5 S cm(-1) and 1.53 g cm(-3), which are three orders and four times larger than those of the C-PANI samples, respectively. On the other hand, C-PANI and Agar-PANI have similar crystallinity. The capacitances of the Agar-PANIs are 200-500 F cm(-3) at 5 mHz and these electrodes would be adequate for high energy density devices. The accommodation of glutamate is 1.5 x 10(-3) mol cm(-3) for the Agar-PANI, which is two orders of magnitude larger than when a polypyrrole electrode is used. (C) 2003 Elsevier B.V All rights reserved.
- Keywords
- polyaniline; conducting polymers; template synthesis; secondary batteries; electrochemical capacitors; agar gel; RECHARGEABLE BATTERIES; POLYPYRROLE; MORPHOLOGY; ELECTRODEPOSITION; CAPACITORS; TRANSPORT; POLYMERS; ANILINE; RELEASE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/18088
- DOI
- 10.1016/j.jpowsour.2003.08.015
- ISSN
- 0378-7753
- Article Type
- Article
- Citation
- JOURNAL OF POWER SOURCES, vol. 126, no. 1-2, page. 258 - 267, 2004-02-16
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