Method of evaluating the ionic conductance of polypyrrole films and improvement of ionic conductance of polyethylene oxide-incorporated polypyrrole composite

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18 引文 斯高帕斯(Scopus)

摘要

In this study, stainless steel electrode alternate current (ac) impedance associated with direct current (dc) polarization measurements were proposed to successfully evaluate the contribution of ionic conductance (tion) to the bulk conductance of polypyrrole (PPy) in various relative humidities (RH). The fraction of tion, defined as the ratio of (1/Ri) to ((1/Ri)+(1/Re)), was used as a quantitative index for the contribution of ionic conductance. The results showed that the tion are 0.15, 0.29, and 0.46 for PPy in 5, 25, and 50% RH, respectively. Also, the tion can increase from 0.12 to 0.22 in dry nitrogen after PPy was modified with polyethylene oxide (PEO).

原文英語
頁(從 - 到)791-795
頁數5
期刊Materials Chemistry and Physics
77
發行號3
DOIs
出版狀態已發佈 - 一月 30 2003
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ASJC Scopus subject areas

  • 材料科學(全部)
  • 凝聚態物理學

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