鉄族金属共存下におけるZnのUnderpotential Deposition Underpotential Deposition of Zn with Iron-group Metals

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Zn underpotential deposition with iron-group metals was studied using a Cu substrate in sulfate or chloride baths containing a small amount of Zn<sup>2+</sup> ions at 5 to 80°C under potentiostatic conditions. Underpotential deposition occurs only in the presence of iron-group metals and is facilitated when conditions permit decreased inherent deposition overpotential of iron-group metals such as high temperature and Cl<sup>-</sup> additive. This is similar to induced alloy deposition, in which the properties of iron-group metals in a metallic state play an important role. This is cleary different, however, from induced because Zn deposition occurs at more noble potentials than its equilibrium. Iron-group metal properties in a metallic state appear responsible for Zn underpotential deposition, although the detailed mechanism is yet unclear. If the codepositing iron-group metal consistently reduces the activity coefficient of Zn deposited on the progressively formed cathode surface, the large amount of underpotential deposition is explainable thermodynamically.

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(11), 1209-1214, 1998-11-01 

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002111064
  • 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
    4603784
  • 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  CJP引用  NDL  J-STAGE 
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