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2011 Fiscal Year Annual Research Report

異方性ナノ反応場におけるテーラーメイド無機ナノクリスタル創製

Research Project

Project/Area Number 21360338
Research InstitutionOsaka University

Principal Investigator

大原 智  大阪大学, 接合科学研究所, 特任准教授 (00396532)

Keywordsナノ構造 / セラミックス / カーボン / プロセス
Research Abstract

本研究ではまず、セラミックスナノクリスタルの結晶成長が有機分子等の部分的選択キャッピング効果により精密に制御可能な異方性ナノ反応場に関する基礎技術を確立する。これにより、液相プロセスにおけるテーラーメイドセラミックスナノクリスタル製造の技術基盤の構築に資する。また、異方性ナノ反応場を気相プロセスにも展開し、ユニークな形態の新規カーボンナノ材料の創製に挑戦する。さらに、ナノ材料を高次に集積化させた多元ナノ構造体の作製を試み、革新的性能を有する燃料電池、触媒、バイオセンサー等への応用展開を図ることを目的とする。
本年度はまず、これまでに引き続き、カーボンナノ材料の形態や生成量に与える合成条件を検討し、反応機構の解明を試みた。これにより、本新規物理的プロセスによるテーラーメイドカーボンナノ材料合成の基礎技術を構築し、ユニークな形態のカーボンナノチューブの合成や新しい形態のカーボンナノ材料(ナノリングやナノチェーン等)の創製に挑戦した。
さらに本年度は、これまでに引き続き、合成したセラミックスナノ粒子の自己組織化形成に及ぼす要因を系統的に検討し、多元超格子の作製を試みた。粒子-粒子間、粒子-溶媒分子間の相互作用を高度に制御し、多様性を持つ多層構造形成を試みた。また、ナノクリスタルのサイズ・形状の違いがアセンブリー構造に与える影響を明らかにした。これにより、セラミックスナノクリスタルの構造形成技術を体系化した。また、2種類以上のナノクリスタルから、多様性に富む自己組織化構造の形成を試みるとともに、セルフアセンブリー機構の科学の確立を目指した。

  • Research Products

    (19 results)

All 2012 2011 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (12 results) Remarks (1 results)

  • [Journal Article] Preparation of Aqueous Dispersible Styrene-Maleic Amide Encapsulated CoAl_2O_4 Nanocrystals using Supercritical Water Flow Type Apparatus2012

    • Author(s)
      D.Rangappa, S.Ohara, S.Takami, T.Naka, A.Kondo, M.Ishii, T.Kobayashi, T.Adschiri
    • Journal Title

      Materials Research Innovations

      Volume: 16 Pages: 30-37

    • DOI

      10.1179/1433075X11Y.0000000017

    • Peer Reviewed
  • [Journal Article] Surface Ligand-Assisted Valence Change in Ceria Nanocrystals2011

    • Author(s)
      J.Zhang, T.Naka, S.Ohara, K.Kaneko, T.Trevethan, A.Shluger, T.Adschiri
    • Journal Title

      Phys.Rev.B

      Volume: 84 Pages: 045411-1-9

    • DOI

      10.1103/PhysRevB.84.045411

    • Peer Reviewed
  • [Journal Article] One-pot Hydrothermal Synthesis of an Assembly of Magnetite Nanoneedles on a Scaffold of Cyclic-diphenylalanine Nanorods2011

    • Author(s)
      T.Togashi, M.Umetsu, T.Naka, S.Ohara, Y.Hatakeyama, T.Adschiri
    • Journal Title

      J.Nanopart.Res.

      Volume: 13 Pages: 3991-3999

    • DOI

      10.1007/s11051-011-0324-0

    • Peer Reviewed
  • [Journal Article] Ordered Deposition of Pd Nanoparticles on Sodium Dodecyl Sulfate-Functionalized Single-Walled Carbon nanotubes2011

    • Author(s)
      Z.Tan, H.Abe, S.Ohara
    • Journal Title

      J.Mater.Chem.

      Volume: 21 Pages: 12008-12014

    • DOI

      10.1039/c1jm11514f

    • Peer Reviewed
  • [Journal Article] Supramolecular Hydrogel of Bile Salts Triggered by Single-Walled Carbon Nanotubes2011

    • Author(s)
      Z.Tan, S.Ohara, M.Naito, H.Abe
    • Journal Title

      Adv.Mater.

      Volume: 23 Pages: 4053-4057

    • DOI

      10.1002/adma.201102160

    • Peer Reviewed
  • [Journal Article] Fabrication of Pd-DNA and Pd-CNT Hybrid Nanostructures for Hydrogen Sensors2011

    • Author(s)
      S.Ohara, Y.Hatakeyama, M.Umetsu, Z.Tan, T.Adschiri
    • Journal Title

      Advanced Powder Technology

      Volume: 22 Pages: 559-565

    • DOI

      10.1016/j.apt.2011.05.006

    • Peer Reviewed
  • [Presentation] Novel Mechanochemical Synthesis of Carbon and Ceramic Nanomaterials by a High-Speed Ball-Milling Process2011

    • Author(s)
      S.Ohara, Z.Tan, H.Abe
    • Organizer
      2nd Nanotoday Conference
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2011-12-13
  • [Presentation] Novel Mechanochemical Synthesis of Fine Ceramic Nano-Materials by a High-Speed Ball-Milling Process2011

    • Author(s)
      S.Ohara, Z.Tan
    • Organizer
      ECO-Mates 2011
    • Place of Presentation
      Osaka, Japan
    • Year and Date
      2011-11-28
  • [Presentation] Fabrication of Pd-DNA and Pd-CNT Hybrid Nanomaterials for Hydrogen Sensors2011

    • Author(s)
      S.Ohara, M.Umetsu, T.Adschiri, Z.Tan, H.Abe
    • Organizer
      15th International Conference of Thin Films
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2011-11-10
  • [Presentation] Novel Mechanochemical Synthesis of Carbon Nanomaterials by a High-Speed Ball-Milling Process2011

    • Author(s)
      S.Ohara, Z.Tan, H.Abe
    • Organizer
      BIT's 1st Annual World Congress of Nano-S&T-2011
    • Place of Presentation
      Dalian, China
    • Year and Date
      2011-10-24
  • [Presentation] Tailor-Made Ceramic Nanocrystals by Organic-Ligand-Assisted Hydrothermal Synthesis2011

    • Author(s)
      S.Ohara
    • Organizer
      Materials Science & Technology 2011 Conference & Exhibition
    • Place of Presentation
      Ohio, USA(招待講演)
    • Year and Date
      2011-10-19
  • [Presentation] Novel Mechanochemical Synthesis of Fine Ceramic Nanoparticles by a High-Speed Ball-Milling Process2011

    • Author(s)
      S.Ohara, Z.Tan
    • Organizer
      The 8th International Symposium on Applied Plasma Science
    • Place of Presentation
      Hakone, Japan
    • Year and Date
      2011-09-29
  • [Presentation] Mechanochemical Synthesis of Carbon Nanaomaterials by a High-Speed Ball-Milling Process2011

    • Author(s)
      S.Ohara, Z.Tan, H.Abe
    • Organizer
      VII International Conference on Mechanochemistry and Mechanical Alloying
    • Place of Presentation
      Herceg Novi, Montenegro
    • Year and Date
      2011-09-01
  • [Presentation] Mechanochemical Synthesis of Carbon and Ceramic Nanomaterials by a High-Speed Ball-Milling Process2011

    • Author(s)
      S.Ohara
    • Organizer
      The 4th International Symposium on Functional Materials
    • Place of Presentation
      Sendai, Japan(招待講演)
    • Year and Date
      2011-08-05
  • [Presentation] Novel Mechanochemical Synthesis of Carbon Nanaomaterials by a High-Speed Ball-Milling2011

    • Author(s)
      S.Ohara, Z.Tan, H.Abe
    • Organizer
      The 2011 International Conference on Advanced Engineering Materials and Technology
    • Place of Presentation
      Sanya, China
    • Year and Date
      2011-07-30
  • [Presentation] Synthesis and Joining of Advanced Nanoparticles towards Bio-Medical Applications2011

    • Author(s)
      S.Ohara, Z.Tan, K.Sato, M.Umetsu
    • Organizer
      STAC5 and AMDI2
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      2011-06-23
  • [Presentation] Novel Mechanochemical Synthesis of Carbon Nanomaterials by a High-Speed Ball-Milling Process2011

    • Author(s)
      S.Ohara
    • Organizer
      12th Conference of the European Ceramic Society
    • Place of Presentation
      Stockholm, Sweeden(招待講演)
    • Year and Date
      2011-06-20
  • [Presentation] DNA Templated Integration of Metal and Ceramic Nanoparticles2011

    • Author(s)
      S.Ohara, J.Han, Z.Tan, K.Sato, M.Umetsu
    • Organizer
      European Materials Research Society Spring Meeting 2011
    • Place of Presentation
      Nice, France
    • Year and Date
      2011-05-09
  • [Remarks]

    • URL

      http://www.jwri.osaka-u.ac.jp/research/research06_1.html

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Published: 2013-06-26  

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