Development of bicontinuous Mg nanocomposites with superior hydrogen storage performances

• Project/Area Number: 24760566
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: WADA Takeshi 東北大学, 金属材料研究所, 助教 (10431602)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: コンポジット材料 / マグネシウム / コンポジット / デアロイング / 水素吸蔵 / 水素吸蔵合金

Research Abstract

A Mg/X (X:Fe, Cr, Ti, Zr) nanocomposite with unique bicontinuous structure was successfully prepared by dealloying treatment using Mg metallic melt. The microstructure of the composite can be controlled by dealloying temperature, dealloying time and alloy composition of the precursor. The bicontinuous Mg/X composite exhibited higher hydrogenation kinetics at lower hydrogen pressure compared to those of commercial pure Mg powder.

Research Products

• [Journal Article] Sub-micron porous niobium solid electrolytic capacitor prepared by dealloying in a metallic melt (2014)
  • Author(s): Kim, JW ; Wada, T. ; Kim, SG ; Kato, H
  • Journal Title: Materials Letters Volume: Vol.116 Pages: 223-226
  • DOI: 10.1016/j.matlet.2013.11.036
  • Peer Reviewed
• [Journal Article] Three-dimensional open-cell macroporous iron, chromium and ferritic stainless steel (2013)
  • Author(s): Wada, T ; Kato, H
  • Journal Title: Scripta Materialia Volume: Vol.68 Issue: 9 Pages: 723-726
  • DOI: 10.1016/j.scriptamat.2013.01.011
  • Peer Reviewed
• [Journal Article] 卑・半金属およびそれらの合金によるオープンセル型ポーラス材料の開発 (2013)
  • Author(s): 加藤秀実、和田武、津田雅史
  • Volume: 52
  • Pages: 395-403
  • NAID: 10031189522
  • URL: https://www.jim.or.jp/
  • Peer Reviewed
• [Journal Article] Kinetics of formation and coarsening of nanoporousα-titanium dealloyed with Mg melt (2013)
  • Author(s): M.Tsuda, T. Wada, H. Kato
  • Journal Title: Journal of Applied Physics Volume: 114 Pages: 113503-113503
  • Peer Reviewed
• [Journal Article] Kinetics of formation and coarsening of nanoporous a-titanium dealloyed with Mg melt (2013)
  • Author(s): Tsuda, Masashi; Wada, Takeshi; Kato, Hidemi
  • Journal Title: JOURNAL OF APPLIED PHYSICS Volume: 114 Issue: 11 Pages: 113503-113503
  • DOI: 10.1063/1.4821066
  • Peer Reviewed
• [Journal Article] Mg-based metallic glass matrix composite with in situ porous titanium dispersoids by dealloying in metallic melt (2013)
  • Author(s): H. Oka, W. Guo, T. Wada, H. Kato
  • Journal Title: Materials Science and Engineering A Volume: 582 Pages: 76-83
  • DOI: 10.1016/j.msea.2013.06.015
  • Peer Reviewed
• [Presentation] 金属溶湯デアロイング法によるナノポーラスシリコンの作製 (2013)
  • Author(s): 和田武、湯葢邦夫、加藤秀実、瀬川春彦、吉田浩一
  • Organizer: 日本金属学会秋季講演大会
  • Place of Presentation: 石川
  • Year and Date: 2013-09-17
• [Presentation] Preparation of Nanoporous Ti by Dealloying with Metallic Melt (2013)
  • Author(s): T. Wada, K. Yubuta, H. Kato
  • Organizer: IUMRS-ICA2012
  • Place of Presentation: Korea
  • Year and Date: 2013-08-27
• [Presentation] Nano Open Porous Nb Metal by Dealloying Reaction in Metallic Melt Bath (2013)
  • Author(s): J.W. Kim, T. Wada, H. Kato
  • Organizer: IUMRS-ICA2012
  • Place of Presentation: Korea
  • Year and Date: 2013-08-27
• [Presentation] 金属溶湯デアロイング法によるオープンポーラスFeおよびCrの作製 (2013)
  • Author(s): 和田武、加藤秀実
  • Organizer: 日本金属学会春季講演大会
  • Place of Presentation: 東京
  • Year and Date: 2013-03-29
• [Presentation] 金属溶湯デアロイング法によるオープンポーラスFeおよびCrの作製 (2013)
  • Author(s): 和田 武、加藤 秀実
  • Organizer: 日本金属学会春季大会
  • Place of Presentation: 東京
• [Presentation] Preparation of Nanoporous Titanium by Dealloying with Metallic Melt (2012)
  • Author(s): T. Wada, K. Yubuta, H. Kato
  • Organizer: IUMRS-ICA 2012
  • Place of Presentation: Busan, Korea