Assembly of polyhedral metal oxide nanocrystal to facilitate handling of nanomaterials

• Project/Area Number: 25286013
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials chemistry
• Research Institution: Tohoku University
• Principal Investigator: Takami Seiichi 東北大学, 多元物質科学研究所, 准教授 (40311550)
• Co-Investigator(Kenkyū-buntansha): 齊藤 丈靖 大阪府立大学, 工学(系)研究科(研究院), 准教授 (70274503) ; 冨樫 貴成 山形大学, 理学部, 助教 (80510122)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000); Fiscal Year 2015: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2014: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2013: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
• Keywords: ナノ粒子 / 結晶面 / 金属酸化物ナノ結晶 / 水熱合成 / 有機分子修飾 / 酸化物ナノ粒子 / 表面修飾 / ナノ結晶 / 有機修飾 / 規則配列 / 金属酸化物 / 超臨界水 / 合成機構

Outline of Final Research Achievements

Metal oxides have various properties and are used in the form of nanoparticles. Their functions depend on the crystal face and the assembly of nanoparticles have a merit to facilitate their handling including recovery and dispersion. This research synthesized Cr-substituted cerium oxide nanocrystal that showed higher oxygen storage capacity. Also the assemblies of cerium oxide nanoparticles are formed by using bi-functional organic molecules.

Research Products

• [Journal Article] Kinetics Study to Identify Reaction-Controlled Conditions for Supercritical Hydrothermal Nanoparticle Synthesis with Flow-type Reactors (2016)
  • Author(s): 32.Nobuaki Aoki, Ayato Sato, Hikari Sasaki, Andrzej-Alexander Litwinowicz, Gimyeong Seong, Tsutomu Aida, Daisuke Hojo, Seiichi Takami, Tadafumi Adschiri
  • Journal Title: The Journal of Supercritical Fluids Volume: 110 Pages: 161-166
  • DOI: 10.1016/j.supflu.2015.11.015
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Co-doping of Tin and Zinc into Indium Oxide Nanocrystals Using a Facile Hydrothermal Method (2016)
  • Author(s): J. Lu, K. Minami, S. Takami, M. Shibata, Y. Kaneko, T. Adschiri
  • Journal Title: ChemistrySelect Volume: 1 Issue: 3 Pages: 518-523
  • DOI: 10.1002/slct.201500025
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Tuning surface grafting density of CeO2 nanocrystals with near- and supercritical solvent characteristics (2016)
  • Author(s): B. Giroire, C. Slostowski, S. Marre, C. Aymonier, T. Aida, D. Hojo, N. Aoki, S. Takami, T. Adschiri
  • Journal Title: Physical Chemistry Chemical Physics Volume: 18 Issue: 3 Pages: 1727-1734
  • DOI: 10.1039/c5cp07034a
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Beneficial use of CeO2 nanocatalyst for black liquor conversion under sub and supercritical conditions (2015)
  • Author(s): H. Boucard, M. Watanabe, S. Takami, E. Weiss-Hortala, R. Barna, T. Adschiri
  • Journal Title: JOURNAL OF SUPERCRITICAL FLUIDS Volume: 105 Pages: 66-76
  • DOI: 10.1016/j.supflu.2015.02.008
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Green solvent for green materials: a supercritical hydrothermal method and shape-controlled synthesis of Cr-doped CeO2 nanoparticles (2015)
  • Author(s): Yuanzheng Zhu, Seiichi Takami, Gimyeong Seong, Mehdi Dejhosseini, Muhammad Zamir Hossain, Takio Noguchi, Daisuke Hojo, Nobuaki Aoki, Tsutomu Aida, Tadafumi Adschiri
  • Journal Title: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences Volume: 373 Issue: 2057 Pages: 1-14
  • DOI: 10.1098/rsta.2015.0012
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 超臨界技術を使ったナノ粒子、ナノ構造の作成 (2016)
  • Author(s): 高見 誠一
  • Organizer: 日本セラミックス協会 資源・環境関連材料部会 講演会
  • Place of Presentation: 東京都立産業技術センター（東京都江東区）
  • Invited
• [Presentation] 表面修飾金属酸化物ナノ粒子の合成手法とその利用 (2016)
  • Author(s): 高見 誠一
  • Organizer: 『ナノマテリアルの新展開』 in ナノマテリアルコロキウム
  • Place of Presentation: 秋田大学（秋田県秋田市）
  • Invited
• [Presentation] Synthesis of surface-modified metal oxide nanocrystals and their application (2015)
  • Author(s): Seiichi Takami
  • Organizer: 2nd Japan-France Symposium on Green-Materials and Advanced Characterization (GMAC2015)
  • Place of Presentation: 筑波大学（茨城県つくば市）
  • Year and Date: 2015-08-30
  • Int'l Joint Research / Invited
• [Presentation] ナノ複合材料の創製を目指したアミノ基呈示CeO2ナノ粒子の水熱合成 (2015)
  • Author(s): 宮川 和輝・青木 宣明・北條 大介・高見 誠一・阿尻 雅文
  • Organizer: 化学工学会 第80年会
  • Place of Presentation: 東京、日本
  • Year and Date: 2015-03-20
• [Presentation] 高温水中における有機分子を用いたアナターゼ型酸化チタンナノ粒子の形状制御 (2015)
  • Author(s): 丁 孝眞・青木 宣明・有田 稔彦・北條 大介・高見 誠一・阿尻 雅文
  • Organizer: 化学工学会 第80年会
  • Place of Presentation: 東京
  • Year and Date: 2015-03-20
• [Presentation] 表面修飾酸化物ナノ粒子の合成とハイブリッド材料への応用 (2015)
  • Author(s): 高見 誠一
  • Organizer: コロイド先端技術講座II
  • Place of Presentation: 日本化学会館（東京都千代田区）
  • Invited
• [Presentation] Synthesis and Application of Organic-molecule Modified Metal Oxide Nanocrystals (2014)
  • Author(s): S. Takami
  • Organizer: 4th International Solvothermal and Hydrothermal Association Conference
  • Place of Presentation: ボルドー、フランス
  • Year and Date: 2014-10-20
  • Invited
• [Presentation] Synthesis of CeO2 nanoassemblies using a flow-type reactor and their structural change during reaction (2014)
  • Author(s): A.-A. Litwinowicz, S. Takami, D. Hojo, N. Aoki, T. Adschiri
  • Organizer: 2014 European Materials Research Society
  • Place of Presentation: リール、フランス
  • Year and Date: 2014-05-20
• [Presentation] Neutron Computed Tomography at the Mixing Point of Supercritical Water and Room Temperature Water in a Tubular Flow Reactor (2013)
  • Author(s): S. Takami, K. Ozawa, K. Sugioka, T. Tsukada, T. Adschiri, K. Sugioka, N.Takenaka, Y. Saito
  • Organizer: The 6th International Symposium on High Pressure Processes Technology
  • Place of Presentation: Belgrade, Serbia
• [Presentation] Structural Evolution of CeO2 Nanoassemblies During Their Hydrothermal Synthesis in a Flow-Type Reactor (2013)
  • Author(s): A.-A. Litwinowicz, S. Takami, D. Hojo, N. Aoki, T. Adschiri
  • Organizer: 2013 Materials Research Society Fall Meeting
  • Place of Presentation: Boston, U.S.A.