書誌事項
- タイトル別名
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- Evaluation of Harmful Effect of Impurities in Zn Electrowinning Solution by Cyclic Voltammetry
- サイクリック ボルタンメトリー ニ ヨル アエン デンカイ サイシュエキ ノ フジュンブツ ノ アクエイキョウ ヒョウカ
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The harmful effect of impurities on the electrowinning of Zn was evaluated by a cyclic voltammetry. The voltammograms obtained from the solutions containing Cu, Ni and Sb as impurities showed a shift of hydrogen evolution potential to the noble direction and an increase in critical current density for Zn deposition. When the potential of working electrode in the voltammetry was turned back to the noble direction after Zn deposition, the deposited Zn dissolved. The potential required for initiating the dissolution of Zn was somewhat more noble in solutions containing Cu and Ni than in impurity-free solution. In solutions containing Cu and Ni, the further shift of potential to the noble direction after dissolution of Zn brought about the abrupt shift of current density to reduction side for hydrogen evolution. This is attributed to Cu and Ni with low hydrogen overpotential deposited on electrode, and showing that the voltammogram can indicate whether the impurity deposits or not. It could be concluded that the harmful effect of impurities on the electrowinning of Zn can be evaluated by the cyclic voltammetry.
収録刊行物
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- 資源と素材
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資源と素材 127 (6_7), 267-271, 2011
一般社団法人 資源・素材学会
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詳細情報 詳細情報について
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- CRID
- 1390282680258687488
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- NII論文ID
- 10028222482
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- NII書誌ID
- AA12188381
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- ISSN
- 18840450
- 18816118
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- NDL書誌ID
- 11146629
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可