交流インピーダンス法による水素吸蔵合金のアルカリ処理効果の解析

• 小浦 延幸

  東京理科大学理工学部

• 武田 賢一

  東京理科大学理工学部

• 井手本 康

  東京理科大学理工学部

書誌事項

タイトル別名

• Effect of Alkaline Treatment for the Alloys on the Hydrogen Absorbing Reaction by using AC Impedance Method
• コウリュウ インピーダンスホウ ニ ヨル スイソ キュウゾウ ゴウキン ノ アルカリ ショリ コウカ ノ カイセキ

抄録

LaNi_5−xM_x(M = Al, Co, x = 0, 0.3, 0.5) electrodes were treated by immersing them in boiling alkaline solution to remove the oxide films from the alloy surface. The electrodes treated by immersing them in a boiling 6 mol dm⁻³ KOH solution for 2 h were activated rapidly, and the capacity was increased 10∼67%. The hydrogen absorbing reaction of the treated electrodes has been investigated using the AC impedance method and XPS, and has been compared with the non-treated electrode. From these results, it was found that the oxide films on the alloy surface were removed and the number of Ni clusters on the alloy surface was increased by the alkaline treatment. Therefore, the hydrogen absorbing reaction in which the diffusion of hydrogen atoms into the alloys follows the formation of hydrogen atoms was improved.

収録刊行物

• Electrochemistry

  Electrochemistry 68 (2), 98-105, 2000-02-05

  公益社団法人　電気化学会

キーワード

• Hydrogen Absorbing Alloys
• AC Impedance Method
• Alkaline Treatment

詳細情報

• CRID: 1390564227344492672
• NII論文ID: 10004454784
• NII書誌ID: AN00151637
• DOI: 10.5796/electrochemistry.68.98
• ISSN: 21862451
• ISSN: 13443542
• NDL書誌ID: 4981046
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4981046
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/68/2/68_98/_pdf
• 本文言語コード: ja
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