ポーラログラフィ法によるCo-W合金の誘起共析機構の解析 Co-W Alloy Induced Codeposition Mechanism Analyzed Using DC Polarography

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抄録

Tungstate ion reduction was studied in 1mol·dm<sup>-3</sup> KCl or 0.5mol·dm<sup>-3</sup> citric acid solutions using DC polarography. In citric acid solutions containing only tungstate ions, a tungstate ion reduction wave was observed only at 3.5 pH. This wave disappeared when cobalt ions were added to the solution because the hydrogen evolution current increased. Polarograms from KCl solutions containing only tungstate ions showed a well-defined tungstate ion reduction wave when the solution's pH was from 3.2 to 3.9. A clear tungstate ion reduction wave preceded by a cobalt deposition wave appeared in the KCl solution containing tungstate and cobalt ions at 6.0pH, but no reduction wave was obtained in the solution without cobalt ions. The limiting current for the tungstate ion reduction was proportional to that for the cobalt deposition, when the concentration of cobalt ions was lower than that of tungstate ions. This linear relation suggests that cobalt deposition induces tungstate ion reduction.

収録刊行物

  • 表面技術 = The Journal of the Surface Finishing Society of Japan

    表面技術 = The Journal of the Surface Finishing Society of Japan 49(7), 764-768, 1998-07-01

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002109996
  • NII書誌ID(NCID)
    AN1005202X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09151869
  • NDL 記事登録ID
    4514779
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-291
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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