LiCl-KCl共晶溶融塩中におけるTi電解の電極反応

• 久間 英典

  豊橋技術科学大学(現:日本ステンレス(株)筑波研究室)

• 伊藤 公允

  豊橋技術科学大学 工博

• 川上 正博

  豊橋技術科学大学 工博

書誌事項

タイトル別名

• Electrode Reaction on the Electrolysis of Titanium in LiCl-KCl Eutectic Melt
• LiCl KCl キョウショウ ヨウユウエンチュウ ニ オケル Ti デンカイ

抄録

Cathodic reduction of Ti ions and anodic oxidation of Cl ion were investigated in LiCl-KCl eutectic melt. The experiments were carried out under argon atmosphere at higher temperature than 500°C with addition of TiCl₃ and/or Ti chips. The results are summarised as follows.<BR>Two waves on linear sweep voltammograms were observed when TiCl₃ was added to the melt. The first reduction wave appears at the potential near-0.6V, and is attributed to the step of Ti³⁺ → Ti²⁺. The second reduction wave appears at-1.1V corresponding to the step of Ti²⁺ → Ti⁰. Reduction rate of Ti²⁺ → Ti⁰ was proportional to concentration of Ti²⁺. The reduction potentials at which Ti³⁺ → Ti²⁺ and Ti²⁺ → Ti⁰ reductions take place are in good agreement with the theoretical ones calculated from the thermodynamic data. The oxidation of Cl^- → Cl⁰ takes place at + 1.0V which corresponds well to the theoretical oxidation potential. Electrodeposit at-1.2V in the melt containing Ti²⁺ was found to be titanium metal, by EPMA analysis.

収録刊行物

• 鉄と鋼

  鉄と鋼 76 (10), 1656-1663, 1990

  一般社団法人 日本鉄鋼協会

キーワード

• molten salt
• titanium
• electrodeposit
• reduction potential
• oxidation potential

詳細情報

• CRID: 1390282680161152512
• NII論文ID: 110001492478
• NII書誌ID: AN00151251
• DOI: 10.2355/tetsutohagane1955.76.10_1656
• ISSN: 18832954
• ISSN: 00211575
• NDL書誌ID: 3694410
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3694410
• Web Site: https://www.jstage.jst.go.jp/article/tetsutohagane1955/76/10/76_10_1656/_pdf
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