Codeposition behavior of impurities during electrogalvanization in sulfate baths 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記事

6 引用 (Scopus)

抄録

The codeposition behavior of impurity Fe with Zn was investigated galvanostatically over the current density range 1-1000A/m2 at 40°C In zinc sulfate solutions of pH 3 containing 5 000 ppm of Fe 2+ and other organic or inorganic impurities. Fe showed hardly any codeposition with Zn In solutions containing Fe and either Mo or Ni as impurities. The codeposition of Fe is strongly suppressed in the presence of Zn2+ ions through preferential adsorption of Zn hydroxide on the cathode. In solutions containing Fe and Cu, Fe codeposited with Zn and the Fe content in the deposit decreased with increasing current density. Codeposited Cu promotes Fe deposition by providing active sites that are free of adsorbed Zn hydroxide, In solutions containing Fe and benzyl(dimethyl)(stearyl)ammonium chloride (C18-Benzyl) as an impurity, significant amounts of Fe were codeposited. The cathode potential for Zn deposition was greatly polarized by addition of C18-Benzyl, and the Fe content In deposits increased with increasing current density.

元の言語英語
ページ(範囲)1029-1033
ページ数5
ジャーナルisij international
47
発行部数7
DOI
出版物ステータス出版済み - 9 17 2007

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Sulfates
Impurities
Ions
Current density
Cathodes
Deposits
Zinc Sulfate
Ammonium Chloride
Zinc
Adsorption
hydroxide ion

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

これを引用

Codeposition behavior of impurities during electrogalvanization in sulfate baths in the presence of Fe ions. / Nakano, Hiroaki; Oue, Satoshi; Hisano, Shoji; Kobayashi, Shigeo; Fukushima, Hisaaki.

:: isij international, 巻 47, 番号 7, 17.09.2007, p. 1029-1033.

研究成果: ジャーナルへの寄稿記事

Nakano, Hiroaki ; Oue, Satoshi ; Hisano, Shoji ; Kobayashi, Shigeo ; Fukushima, Hisaaki. / Codeposition behavior of impurities during electrogalvanization in sulfate baths in the presence of Fe ions. :: isij international. 2007 ; 巻 47, 番号 7. pp. 1029-1033.
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abstract = "The codeposition behavior of impurity Fe with Zn was investigated galvanostatically over the current density range 1-1000A/m2 at 40°C In zinc sulfate solutions of pH 3 containing 5 000 ppm of Fe 2+ and other organic or inorganic impurities. Fe showed hardly any codeposition with Zn In solutions containing Fe and either Mo or Ni as impurities. The codeposition of Fe is strongly suppressed in the presence of Zn2+ ions through preferential adsorption of Zn hydroxide on the cathode. In solutions containing Fe and Cu, Fe codeposited with Zn and the Fe content in the deposit decreased with increasing current density. Codeposited Cu promotes Fe deposition by providing active sites that are free of adsorbed Zn hydroxide, In solutions containing Fe and benzyl(dimethyl)(stearyl)ammonium chloride (C18-Benzyl) as an impurity, significant amounts of Fe were codeposited. The cathode potential for Zn deposition was greatly polarized by addition of C18-Benzyl, and the Fe content In deposits increased with increasing current density.",
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N2 - The codeposition behavior of impurity Fe with Zn was investigated galvanostatically over the current density range 1-1000A/m2 at 40°C In zinc sulfate solutions of pH 3 containing 5 000 ppm of Fe 2+ and other organic or inorganic impurities. Fe showed hardly any codeposition with Zn In solutions containing Fe and either Mo or Ni as impurities. The codeposition of Fe is strongly suppressed in the presence of Zn2+ ions through preferential adsorption of Zn hydroxide on the cathode. In solutions containing Fe and Cu, Fe codeposited with Zn and the Fe content in the deposit decreased with increasing current density. Codeposited Cu promotes Fe deposition by providing active sites that are free of adsorbed Zn hydroxide, In solutions containing Fe and benzyl(dimethyl)(stearyl)ammonium chloride (C18-Benzyl) as an impurity, significant amounts of Fe were codeposited. The cathode potential for Zn deposition was greatly polarized by addition of C18-Benzyl, and the Fe content In deposits increased with increasing current density.

AB - The codeposition behavior of impurity Fe with Zn was investigated galvanostatically over the current density range 1-1000A/m2 at 40°C In zinc sulfate solutions of pH 3 containing 5 000 ppm of Fe 2+ and other organic or inorganic impurities. Fe showed hardly any codeposition with Zn In solutions containing Fe and either Mo or Ni as impurities. The codeposition of Fe is strongly suppressed in the presence of Zn2+ ions through preferential adsorption of Zn hydroxide on the cathode. In solutions containing Fe and Cu, Fe codeposited with Zn and the Fe content in the deposit decreased with increasing current density. Codeposited Cu promotes Fe deposition by providing active sites that are free of adsorbed Zn hydroxide, In solutions containing Fe and benzyl(dimethyl)(stearyl)ammonium chloride (C18-Benzyl) as an impurity, significant amounts of Fe were codeposited. The cathode potential for Zn deposition was greatly polarized by addition of C18-Benzyl, and the Fe content In deposits increased with increasing current density.

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