Characterization and enhancement in conductivity and conductivity stability of electropolymerized polypyrrole/Al2O3 nanocomposites

Yu Chuan Liu, Chenh Jung Tsai

研究成果: 雜誌貢獻文章同行評審

32 引文 斯高帕斯(Scopus)

摘要

In this study, a nanocomposite of 80 nm α-Al2O3-incorporated polypyrrole (PPy) film was electropolymerized on a Au substrate. It was found that the nucleation and growth were instantaneous three-dimensional processes before and after nuclei overlapping for pure PPy electropolymerization. However, a distinguishable nucleation and growth mechanism before nuclei overlapping was shown for the preparation of the nanocomposite. The nanocomposite demonstrates an extremely high oxidation level revealed from the analyses of X-ray photoelectron spectroscopy (XPS) and surface-enhanced Raman scattering (SERS). Also the conductivity of the nanocomposite was increased substantially (∼5.4 times) and it can depress aging in a 50% relative humidity, 20% (v/v) O2 and 30°C atmosphere for 60 days, in comparison to pure PPy.

原文英語
頁(從 - 到)165-171
頁數7
期刊Journal of Electroanalytical Chemistry
537
發行號1-2
DOIs
出版狀態已發佈 - 十一月 29 2002
對外發佈Yes

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

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