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An interpretation of small values of transfer coefficient at conducting polymers
http://hdl.handle.net/10098/1147
http://hdl.handle.net/10098/11475a4589a9-58ab-4573-a9cf-b8febd0e12f8
名前 / ファイル | ライセンス | アクション |
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179-alfCP2.pdf (146.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-11-07 | |||||
タイトル | ||||||
タイトル | An interpretation of small values of transfer coefficient at conducting polymers | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | conducting polymers | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | transfer coefficient | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Tafel plot | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | activated complex | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | conductance | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
資源タイプ | other | |||||
著者 |
AOKI, Koichi
× AOKI, Koichi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The electrochemical oxidation of electronically conducting polymers has shown values of the anodic transfer coefficient closed to zero at the Tafel equation rather than 0.5. This experimental result is interpreted in this report as a difference between the ionic conductance in the reactant with the neutral state and the electric conductance in the product with the polaron state. Since the electric conductance generates a lower electric field for the charged activated complex than the ionic conductance in the reaction coordinate, it compels the activated complex to move less toward the reactant than toward the product. The asymmetry of the activation potential hill makes the anodic transfer coefficient small. This concept is demonstrated by use of the Langevin equation for the activated complex at the activation energy hill. The transfer coefficient is expressed in terms of the thermal fluctuation the conductance, and the current density. The Tafel plot deviates convexly from a straight line, and depends on applied potential, as is consistent with experimental results. | |||||
書誌情報 |
Journal of Electroanalytical Chemistry 巻 569, 号 1, p. 121-125, 発行日 2004-07 |
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出版者 | ||||||
出版者 | Elsevier Ltd | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 220728 | |||||
書誌レコードID | ||||||
識別子タイプ | NCID | |||||
関連識別子 | TD00006573 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.jelechem.2004.02.019 | |||||
著者版フラグ | ||||||
出版タイプ | AO | |||||
出版タイプResource | http://purl.org/coar/version/c_b1a7d7d4d402bcce |