Fabrication of micro/nano alloy particles for titanium electrolytic capacitor applications

• Project/Area Number: 25630333
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Metal making/Resorce production engineering
• Research Institution: Hokkaido University
• Principal Investigator: KIKUCHI Tatsuya 北海道大学, 工学(系)研究科(研究院), 准教授 (60374584)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: カルシウム還元 / マイクロ・ナノ粒子 / 電解コンデンサ / アノード酸化

Outline of Final Research Achievements

A metallic titanium and zirconium alloy particles for electrolytic capacitor applications was produced by electroless reduction with a calcium reductant in calcium chloride molten salt. The reduction rate of oxide was observed to increase with decreasing particle size; accordingly, the residual oxygen content in the reduced titanium decreases. A micro-porous Ti-Zr alloy with low oxygen content and large surface area was successfully fabricated by electroless reduction under optimal conditions.

Research Products

• [Journal Article] Rapid reduction of titanium dioxide nano-particles by reduction with a calcium reductant (2014)
  • Author(s): Tatsuya Kikuchi, Masumi Yoshida, Shiki Matsuura, Shungo Natsui, Etsuji Tsuji, Hiroki Habazaki, Ryosuke O. Suzuki
  • Journal Title: Journal of Physics and Chemistry of Solids Volume: 75 Issue: 9 Pages: 1041-1048
  • DOI: 10.1016/j.jpcs.2014.04.016
  • NAID: 120005446634
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Fabrication of a Macro-Prorous Ti-Zr Alloy by Electroless Reduction with a Calcium Reductant for Electrolytic Capacitor Applications (2014)
  • Author(s): Taysuya Kikuchi, Masumi Yoshida, Yoshiaki Taguchi, Hiroki Habazaki and Ryosuke O. Suzuki
  • Journal Title: J. Alloys and Compounds Volume: 586 Pages: 148-154
  • DOI: 10.1016/j.jallcom.2013.10.052
  • Peer Reviewed
• [Presentation] カルシウム還元を用いた電解コンデンサ用マイクロポーラス合金の作製 (2014)
  • Author(s): 菊地竜也、吉田雅純、夏井俊悟、幅崎浩樹、鈴木亮輔
  • Organizer: 2014年電気化学秋期大会
  • Place of Presentation: 北海道大学（北海道札幌市）
  • Year and Date: 2014-09-27 – 2014-09-28
  • Invited
• [Presentation] チタニアナノ粒子のカルシウム還元によるポーラスチタンの作製 (2013)
  • Author(s): 吉田雅純、菊地竜也、夏井俊悟、幅崎浩樹、鈴木亮輔
  • Organizer: 第30回ARS弘前コンファレンス
  • Place of Presentation: 弘前パークホテル（青森県弘前市）
• [Presentation] チタニアナノ微粒子のCa還元によるポーラスチタンの作製 (2013)
  • Author(s): 吉田雅純、菊地竜也、夏井俊悟、幅崎浩樹、鈴木亮輔
  • Organizer: 日本金属学会第153回講演大会
  • Place of Presentation: 金沢大学（石川県金沢市）
• [Presentation] ジルコニアナノ粒子のカルシウム還元挙動 (2013)
  • Author(s): 石田龍馬、菊地竜也、鈴木亮輔
  • Organizer: 日本金属学会第153回講演大会
  • Place of Presentation: 金沢大学（石川県金沢市）
• [Presentation] マイクロ・ナノジルコニア粒子のカルシウム還元
  • Author(s): 石田龍馬、菊地竜也、鈴木亮輔
  • Organizer: 日本金属学会・日本鉄鋼協会 両北海道支部合同夏季サマーセッション
  • Place of Presentation: 室蘭工業大学（北海道室蘭市）