Codeposition behavior of impurity during electrogalvanizing in sulfate bath in the presence of Fe ions

Hiroaki Nakano, Satoshi Oue, Shoji Hisano, Shigeo Kobayashi, Hisaaki Fukushima

    研究成果: ジャーナルへの寄稿学術誌査読

    1 被引用数 (Scopus)

    抄録

    The codeposition behavior of impurity Fe with Zn was investigated galvanostatically over the current density range from 1 to 1000 A/m2 at 40°C in zinc sulfate solution of pH 3 containing 5000 ppm of Fe 2 and the other organic or inorganic impurity. Fe hardly codeposited with Zn in the solution containing both Fe and Mo or Ni as impurity. The codeposition of Fe seems to be strongly suppressed in the presence of Zn 2+ ions due to the adsorption of Zn hydroxide preferentially formed on the cathode. However, in the solution containing Fe and Cu, Fe evidently codeposited with Zn. The Fe content in deposit decreased with increasing the current density. The role of codeposited Cu is considered to promote Fe deposition by providing an active sites free from adsorbed Zn hydroxide. On the other hand, in the solution containing Fe and stearyle benzyl ammonium chloride (CIS-Benzyl) as impurities, the eodeposition of Fe was significantly recognized. The cathode potential for Zn deposition was greatly polarized by addition of C18-Benzyl and the Fe content in deposit increased with increasing the current density.

    本文言語英語
    ページ(範囲)39-43
    ページ数5
    ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
    93
    1
    DOI
    出版ステータス出版済み - 1月 2007

    !!!All Science Journal Classification (ASJC) codes

    • 凝縮系物理学
    • 物理化学および理論化学
    • 金属および合金
    • 材料化学

    フィンガープリント

    「Codeposition behavior of impurity during electrogalvanizing in sulfate bath in the presence of Fe ions」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル