Formation of PPy/Ta2O5/Ta structure by electropolymerization

Young‐Seo ‐S Park, Shinji Takeoka, Kimihisa Yamamoto, Eishun Tsuchida

    研究成果: Article

    3 引用 (Scopus)

    抄録

    Electropolymerization of pyrrole on tantalum (Ta) electrodes was carried out in buffer solutions (0.04 M phosphoric acid, 0.04 M acetic acid, 0.04 M boric acid and 0.2 M sodium hydroxide) containing 0.1 M sodium ptoluenesulfonate (TsONa) under galvanostatic conditions and it was found that a polypyrrole (PPy) and a tantalum oxide (Ta2O5) layer are formed on a Ta electrode by an electrochemical oxidation process. The conditions of this simultaneous formation were studied in respect to current density (id), pyrrole concentration ([Py]), pH and the amount of electricity. Under certain conditions ([Py] = 0.25 M, pH = 1.8, id = 10–20 mA cm−2, the amount of electricity = 1 C), 6–8 μm thick PPy films were efficiently formed on homogeneous 30–50 nm thick Ta2O5 layers. The PPy film showed a high electrical conductivity (110 s cm−1), adhered well and covered the Ta2O5 layer. The resulting PPy/Ta2O5/Ta system is therefore proved to have excellent properties as a capacitor.

    元の言語English
    ページ(範囲)395-400
    ページ数6
    ジャーナルPolymers for Advanced Technologies
    3
    発行部数7
    DOI
    出版物ステータスPublished - 1992

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    Tantalum
    Electropolymerization
    Polypyrroles
    Pyrroles
    Electricity
    Sodium
    Tantalum oxides
    Sodium Hydroxide
    Boric acid
    Electrodes
    Electrochemical oxidation
    Phosphoric acid
    Acetic acid
    Acetic Acid
    Buffers
    Capacitors
    Current density
    polypyrrole

    ASJC Scopus subject areas

    • Polymers and Plastics

    これを引用

    Formation of PPy/Ta2O5/Ta structure by electropolymerization. / Park, Young‐Seo ‐S; Takeoka, Shinji; Yamamoto, Kimihisa; Tsuchida, Eishun.

    :: Polymers for Advanced Technologies, 巻 3, 番号 7, 1992, p. 395-400.

    研究成果: Article

    Park, Young‐Seo ‐S ; Takeoka, Shinji ; Yamamoto, Kimihisa ; Tsuchida, Eishun. / Formation of PPy/Ta2O5/Ta structure by electropolymerization. :: Polymers for Advanced Technologies. 1992 ; 巻 3, 番号 7. pp. 395-400.
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    abstract = "Electropolymerization of pyrrole on tantalum (Ta) electrodes was carried out in buffer solutions (0.04 M phosphoric acid, 0.04 M acetic acid, 0.04 M boric acid and 0.2 M sodium hydroxide) containing 0.1 M sodium ptoluenesulfonate (TsONa) under galvanostatic conditions and it was found that a polypyrrole (PPy) and a tantalum oxide (Ta2O5) layer are formed on a Ta electrode by an electrochemical oxidation process. The conditions of this simultaneous formation were studied in respect to current density (id), pyrrole concentration ([Py]), pH and the amount of electricity. Under certain conditions ([Py] = 0.25 M, pH = 1.8, id = 10–20 mA cm−2, the amount of electricity = 1 C), 6–8 μm thick PPy films were efficiently formed on homogeneous 30–50 nm thick Ta2O5 layers. The PPy film showed a high electrical conductivity (110 s cm−1), adhered well and covered the Ta2O5 layer. The resulting PPy/Ta2O5/Ta system is therefore proved to have excellent properties as a capacitor.",
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    AU - Park, Young‐Seo ‐S

    AU - Takeoka, Shinji

    AU - Yamamoto, Kimihisa

    AU - Tsuchida, Eishun

    PY - 1992

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    AB - Electropolymerization of pyrrole on tantalum (Ta) electrodes was carried out in buffer solutions (0.04 M phosphoric acid, 0.04 M acetic acid, 0.04 M boric acid and 0.2 M sodium hydroxide) containing 0.1 M sodium ptoluenesulfonate (TsONa) under galvanostatic conditions and it was found that a polypyrrole (PPy) and a tantalum oxide (Ta2O5) layer are formed on a Ta electrode by an electrochemical oxidation process. The conditions of this simultaneous formation were studied in respect to current density (id), pyrrole concentration ([Py]), pH and the amount of electricity. Under certain conditions ([Py] = 0.25 M, pH = 1.8, id = 10–20 mA cm−2, the amount of electricity = 1 C), 6–8 μm thick PPy films were efficiently formed on homogeneous 30–50 nm thick Ta2O5 layers. The PPy film showed a high electrical conductivity (110 s cm−1), adhered well and covered the Ta2O5 layer. The resulting PPy/Ta2O5/Ta system is therefore proved to have excellent properties as a capacitor.

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    KW - Polypyrrole

    KW - p‐Toluenesulfonate

    KW - Tantalum oxide

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