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

• 李 明

  九州工業大学工学部

• 盛満 正嗣

  九州工業大学工学部

• 松永 守央

  九州工業大学工学部

書誌事項

タイトル別名

• Co-W Alloy Induced Codeposition Mechanism Analyzed Using DC Polarography.
• ポーラログラフィホウ ニ ヨル Co-W ゴウキン ノ ユウキ キョウセキ キ

抄録

Tungstate ion reduction was studied in 1mol·dm^-3 KCl or 0.5mol·dm^-3 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

  表面技術 49 (7), 764-768, 1998

  一般社団法人 表面技術協会

キーワード

• Co-W Alloy
• Induced Codeposition
• DC Polarography

詳細情報

• CRID: 1390001204115468544
• NII論文ID: 10002109996
• NII書誌ID: AN1005202X
• DOI: 10.4139/sfj.49.764
• ISSN: 18843409
• ISSN: 09151869
• NDL書誌ID: 4514779
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4514779
• 本文言語コード: ja
• データソース種別:
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  • NDL
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  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可