Development of Microreactors with Nano Structures by ApplyingInternal Oxidation of Alloys

• Project/Area Number: 22560714
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Material processing/treatments
• Research Institution: Nagaoka University of Technology
• Principal Investigator: NANKO Makoto 長岡技術科学大学, 工学部, 准教授 (90272666)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: ナノプロセス / ナノロッドアレイ / 光触媒 / 内部酸化 / Al2O3 / アルミナイジング / マイクロリアクター / マイクロリアクタ / Ni(Al) / NiAl2O4

Research Abstract

New approach for fabricating microreactors with naro-structure on the channel wall is studied with a production technique of nano-rod array structure via internal oxidation of dilute Ni(Al) alloys. In order to optimize internal oxidation process for nano-rod array structure, a kinetic model is established by combining a traditional internal oxidation model of bulk alloys and Al profile in solid solution. Validity of the mathematical model was confirmed by comparing the model calculation and experimental results. Nano-rod array can be fabricated homogenously on the wall of the channel by aluminizing and internally oxidizing. Size of nano-rods was ranged from 200-300 nm even at higher temperatures for internal oxidation process. Atmospheric CVD process of organometallic oxides was discussed for addition of photocatalyst on the nano-rod array structure. Photocatalytic TiO_2 can successfully deposited on the tips of nano-rods by the CVD process. Photocatatic performance was evaluated by decolorization of methane blue solution. Nanor-rod array with photocvatalytic TiO2 has faster decolorization than Ni substrate coated with TiO2 by the same CVD process. Space in nano-rod array is l\most likely effective for diffusion in the solution and absorption of UV light. Prototype microreactor was produced with nano-rod array on the channel wall. Photocatalytic reaction of the microreactor was confirmed.

Research Products

• [Journal Article] Fabrication of nano-rod array structure by using aluminizing and internal oxidation of Ni with microchannels (2013)
  • Author(s): T. Ishizaki, D. T. M. Do and M. Nanko
  • Journal Title: Mater. Sci. Forum Volume: 761 Pages: 131-134
• [Journal Article] Fabrication of nano-rod array structure by using aluminizing and internal oxidation of Ni with micro-channels (2013)
  • Author(s): Takeshi Ishizaki, Dung Thi Mai Do and Makoto Nanko
  • Journal Title: Mater. Sci. Forum Volume: 761 Pages: 131-134
  • DOI: 10.4028/www.scientific.net/msf.761.131
  • Peer Reviewed
• [Journal Article] A Fabrication Method for Vertical Oxide Nano-Rod Array by Internal Oxidation of Alloys at High-Temperatures (2012)
  • Author(s): M. Nanko, D. T. M. Do and T. Ishizaki
  • Journal Title: Current Appl. Phys Volume: 12
• [Journal Article] A Fabrication Method for Vertical Oxide Nano-Rod Array by Internal Oxidation of Alloys at High-Temperatures (2012)
  • Author(s): Makoto Nanko, Dung Thi Mai Do and Takeshi Ishizaki
  • Journal Title: Current Appl. Phys Volume: 12 Pages: S184-S187
  • DOI: 10.1016/j.cap.2012.03.002
  • Peer Reviewed
• [Journal Article] FeAl2O4 nano-rod array structures on Fe(Al) solid solution fabricated by internal oxidation process (2011)
  • Author(s): D. T. M Do and M. Nanko
  • Journal Title: IOP Conf. Ser.: Mater. Sci. Eng. Volume: 20
• [Journal Article] Oxide nano-rod array structure via a simple metallurgical process (2011)
  • Author(s): M. Nanko and D. T. M Do
  • Journal Title: IOP Conf. Ser.: Mater. Sci. Eng Volume: 20
• [Journal Article] FeAl2O4 nano-rod array structures on Fe(Al) solid solution fabricated by internal oxidation rocess (2011)
  • Author(s): D.T.M Do, M.Nanko
  • Journal Title: IOP Conf.Ser. : Mater.Sci.Eng. Volume: 20
  • Peer Reviewed
• [Journal Article] Oxide nano-rod array structure via a simple metallurgical process (2011)
  • Author(s): M.Nanko, D.T.M Do
  • Journal Title: IOP Conf.Ser. : Mater.Sci.Eng. Volume: 20
  • Peer Reviewed
• [Presentation] Internal Oxidation of Alloys as Materials Processing to Fabricate Nano-Rod Arrays (2013)
  • Author(s): M. Nanko
  • Organizer: Gordon Research Conference: High Temperature Corrosion
  • Place of Presentation: New Hampshire, USA (予定)
• [Presentation] Internal Oxidation of Alloys as Materials Processing to Fabricate Nano-Rod Arrays (2013)
  • Author(s): Makoto Nanko
  • Organizer: Gordon Research Conference: High Temperature Corrosion
  • Place of Presentation: New London, NH , USA
  • Invited
• [Presentation] Fabrication of nano-rod array structure by using aluminizing and internal oxidation of Ni with micro-channels (2013)
  • Author(s): Takeshi Ishizaki, Dung Thi Mai Do and Makoto Nanko
  • Organizer: ISEPD2013
  • Place of Presentation: 鹿児島
• [Presentation] Fabrication of Oxide Nano-Rod Arrays Structure on Ni Components (2012)
  • Author(s): D.T.M. Do, T. Ishizaki, M. Nanko
  • Organizer: The 1st Intl. GIGAKU Conference in Nagaoka
  • Place of Presentation: 長岡市
  • Year and Date: 2012-02-04
• [Presentation] Fabrication of Oxide Nano-Rod Arrays Structure on Ni Components (2012)
  • Author(s): D.T.M.Do.T.Ishizaki, M. Nanko
  • Organizer: The 1st International GIGAKU Conference in Nagaoka
  • Place of Presentation: 長岡市
  • Year and Date: 2012-02-04
• [Presentation] Fabrication of Vertically Aligned Nano-Oxide Arrays via Internal Oxidation of Dilute Alloys (2012)
  • Author(s): M. Nanko and D. T. Do
  • Organizer: PRiME2012
  • Place of Presentation: Honolulu USA
• [Presentation] Fabrication of Vertically Aligned Nano-Oxide Arrays via Internal Oxidation of Dilute Alloys (2012)
  • Author(s): Makoto Nanko and D. T. Do
  • Organizer: PRiME2012
  • Place of Presentation: Hnolulu, USA
  • Invited
• [Presentation] Fabrication of Nano-Rod Array Structure Used Aluminizing and Internal Oxidation of Alloy for Micro-Channel (2012)
  • Author(s): T. Ishizaki, D. T. Do, and M. Nanko
  • Organizer: PRiME2012
  • Place of Presentation: Honolulu, USA
• [Presentation] アルミ化処理と内部酸化を用いた微小チャネル内壁へのナノロッドアレイ作製 (2012)
  • Author(s): 石崎 丈之 Do Thi Mai Dung 南口 誠
  • Organizer: 日本金属学会秋季大会
  • Place of Presentation: 愛媛
• [Presentation] アルミ化処理と内部酸化を用いて作製されたナノロッドアレイ構造へ のTiO2コーティングとその評価 (2012)
  • Author(s): 石崎丈之，南口 誠
  • Organizer: 日本金属学会北陸信越支部 日本鉄鋼協会北陸信越支部
  • Place of Presentation: 福井
• [Presentation] A Fabrication Method for Vertical Oxide Nano-Rod Array by Internal Oxidation of Alloys at High-Temperatures (2011)
  • Author(s): M. Nanko, D. T. M. Do and T. Ishizaki
  • Organizer: HyMap2011
  • Place of Presentation: 韓国プサン
  • Year and Date: 2011-10-27
• [Presentation] A Fabrication Method for Vertical Oxide Nano-Rod Array by Internal Oxidation of Alloys at High-Temperatures (2011)
  • Author(s): Makoto Nanko, Dung Thi Mai Do, Takeshi Ishizaki
  • Organizer: HyMap2011
  • Place of Presentation: 韓国プサン(招待講演)
  • Year and Date: 2011-10-27
• [Presentation] Fabrication of Oxide Nano-Rod Array Structure via Internal Oxidation of Alloys (2010)
  • Author(s): M. Nanko
  • Organizer: ISHOC-10
  • Place of Presentation: 湘南国際村
  • Year and Date: 2010-11-08