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2010 Fiscal Year Final Research Report

)Preparation of ordered macroporous carbons by using ice crystal growth and control of their hierarchical structure

Research Project

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Project/Area Number 20360349
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Properties in chemical engineering process/Transfer operation/Unit operation
Research InstitutionKyoto University

Principal Investigator

TAMON Hajime  Kyoto University, 大学院・工学研究科, 教授 (30111933)

Co-Investigator(Kenkyū-buntansha) SANO Noriaki  京都大学, 大学院・工学研究科, 准教授 (70295749)
SUZUKI Tetsuo  京都大学, 大学院・工学研究科, 助教 (50243043)
Project Period (FY) 2008 – 2010
Keywordsマクロポーラスカーボン / 氷晶テンプレート法 / 階層構造制御 / ゾルーゲル法 / レゾルシノール / ホルムアルデヒド / 炭素化 / 賦活
Research Abstract

Carbon cryogel microhoneycombs (CMHs) were prepared via sol-gel polycondensation of resorcinol with formaldehyde, unidirectional freezing, freeze drying and pyrolysis. CMHs had a hierarchical structure of macropores and meso/micropores. However, the porosity of CMHs was lower than that of carbon cryogels prepared by a conventional method. The influence of freezing, HCl aging or CO_2 activation on their porous properties of CMHs was studied. The freezing operation greatly decreased the mesopore volume of CMHs. Since the freezing operation was indispensable to the preparation of CMHs, their porosity should be developed after the formation of honeycomb structure. The HCl aging of organic microhoneycombs could develop micropores or mesopores of CMHs. CO_2 activation was extremely useful for improving porosity of CMHs because the honeycomb structure was kept during activation. The CMH whose mesoporosity was much developed could be prepared by the combination of synthesis conditions of resorcinol-formaldehyde hydrogels and CO_2 activation. The CMHs were also immersed in silica sol under reduced pressure, and the carbon-silica composites were prepared via unidirectional freezing, solvent exchange and freeze drying. Silica gel honeycombs or fibrous silica gels could be formed inside the CMHs by unidirectional freezing. The experimental results suggested that the carbon-silica composites with high crystalinity and high compressive strength were prepared in the case where colloidal silica was used as a raw material for silica gels.

  • Research Products

    (11 results)

All 2011 2010 2009

All Journal Article (3 results) (of which Peer Reviewed: 1 results) Presentation (8 results)

  • [Journal Article] HCl treatment on micropore and mesopore structures of carbon cryogels from resorcinol and formaldehyde2011

    • Author(s)
      K.Kraiwattanawong, H.Tamon, P.Praserthdam
    • Journal Title

      J.Chem.Eng.Jpn Vol.44

      Pages: 110-117

    • Peer Reviewed
  • [Journal Article] 吸着材開発の最新動向-階層構造多孔性材料の開発-2010

    • Author(s)
      田門肇
    • Journal Title

      分離技術 40巻

      Pages: 34-39

  • [Journal Article] 吸着技術の現状と将来展望2010

    • Author(s)
      田門肇
    • Journal Title

      分離技術 40巻

      Pages: 323-329

  • [Presentation] Preparation of carbon cryogel microhoneycomb with hierarchical pore structure by ice-templating2011

    • Author(s)
      H.Tamon, M.Sakamoto, T.Suzuki, N.Sano
    • Organizer
      3rd Regional Conference on Chemical Engineering
    • Place of Presentation
      Manila
    • Year and Date
      2011-01-21
  • [Presentation] Hierarchical pore structure of carbon cryogel microhoneycomb prepared through ice-templating2010

    • Author(s)
      H.Tamon, K.Miyamoto, T.Suzuki, N.Sano
    • Organizer
      17th Regional Symposium on Chemical Engineering
    • Place of Presentation
      Bangkok
    • Year and Date
      2010-11-22
  • [Presentation] Preparation of carbon cryogel microhoneycomb by ice-templating and activation2010

    • Author(s)
      H.Tamon, M.Sakamoto, T.Suzuki, N.Sano
    • Organizer
      17th International Drying Symposium
    • Place of Presentation
      Magdeburg (Germany)
    • Year and Date
      2010-10-06
  • [Presentation] Porosity development in carbon cryogel microhoneycomb prepared by ice-templating2010

    • Author(s)
      H.Tamon, M.Sakamoto, T.Suzuki, N.Sano
    • Organizer
      10th International Conference on Fundamentals on Adsorption
    • Place of Presentation
      淡路
    • Year and Date
      2010-05-24
  • [Presentation] 氷晶テンプレート法によるマイクロハニカム状カーボンの作製と細孔特性評価2010

    • Author(s)
      田門肇, 宮本敬子, 佐野紀彰
    • Organizer
      化学工学会第75年会
    • Place of Presentation
      鹿児島
    • Year and Date
      2010-03-19
  • [Presentation] Porosity Development in Carbon Cryogel Microhoneycomb Prepared by Ice-Templating2010

    • Author(s)
      H.Tamon, M.Sakamoto, T.Suzuki, N.Sano
    • Organizer
      11^<th> International Conference on Microreaction Engineering
    • Place of Presentation
      京都
    • Year and Date
      2010-03-09
  • [Presentation] ポーラスカーボンのモルフォロジーとナノ構造の階層制御2009

    • Author(s)
      田門肇
    • Organizer
      活性炭技術研究会第138回講演会
    • Place of Presentation
      大阪
    • Year and Date
      2009-10-29
  • [Presentation] 氷晶成長を利用した多孔質材料のモルフォロジーとナノ構造の階層制御2009

    • Author(s)
      田門肇
    • Organizer
      岡山地区化学工学懇話会特別講演会
    • Place of Presentation
      岡山
    • Year and Date
      2009-06-18

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Published: 2012-01-26   Modified: 2016-04-21  

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