EPR STUDIES OF POLYANILINE

NCU Institutional Repository > 工學院 > 化學工程與材料工程研究所 > 期刊論文 > Item 987654321/26707

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题名:	EPR STUDIES OF POLYANILINE
作者:	YANG,SM;LI,CP
贡献者:	化學工程與材料工程學系
关键词:	DEVICES;FILMS
日期:	1993
上传时间:	2010-06-29 17:34:48 (UTC+8)
出版者:	中央大學
摘要:	Polyaniline films of different thickness were formed on Pt and Au electrodes. In-situ epr spectra at different applied potentials in various pH media were reported in order to clarify the conducting mechanism. The results indicate that upon electrochemical doping of polyaniline, an equilibrium between polaron and bipolaron occurs. The thicker the film, the more stable the polaron. The more acidic the medium , the more stable the polaron. The stability of the polaron of polyaniline formed on Pt is better than those formed on Au electrode. A small epr spin density maximum appear before the major spin density maximum on the plot of spin density versus applied potential of polyaniline formed on Pt electrode. This phenomenon may result from polarons in different environments.
關聯:	SYNTHETIC METALS
显示于类别:	[化學工程與材料工程研究所] 期刊論文

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