Carbonization of wood via the cell cavity functioning as a micro reactor

• Project/Area Number: 21580202
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Wood science
• Research Institution: The University of Tokyo
• Principal Investigator: SAITO Yukie 東京大学, 大学院・農学生命科学研究科, 准教授 (30301120)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: 化学加工 / カーボン材料

Research Abstract

The conical graphitic whisker(CGW) is spindle-shaped carbon consisted of highly ordered turbostratic carbon with helicon-conically distorted stacked hexagonal carbon layers which is produced by vapor phase carbonization with a SiC crystal serving as a seed. CGW could be derived from pyrolysis gas of wood and grown inside the wood cavity. In this study CGW was intercalated with H2SO4 and expanded, without separating from the wood cavity functioning as a scaffold. This indicated that intercalation occurred by supply of electric charge via the cell wall char which enveloped the CGW s. This study suggested the new possibility of inventing functional materials by using cell structure of wood.

Research Products

• [Journal Article] Carbonaceous structural changes of wood induced by microwave irradiation (2012)
  • Author(s): Yukie Saito, Masatoshi Sato
  • Journal Title: Holzforschung Volume: 66 Pages: 85-92
• [Journal Article] Sulfuric acid intercalation of whole wood block char encapsulated with cone-shaped graphitic whiskers in its cell lumen (2012)
  • Author(s): Yukie Saito
  • Journal Title: Transactions of the Materials Research Society of Japan
  • NAID: 130004676434
• [Presentation] スパイラル円錐構造炭素の硫酸層間挿入による膨脹化と (2011)
  • Author(s): 斎藤幸恵
  • Organizer: バネ状挙動第38回炭素材料学会年会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2011-12-01
• [Presentation] 木炭細胞内腔に担持された円錐黒鉛ウイスカーの硫酸層間化合物化と、膨張に伴うバネ状挙動 (2011)
  • Author(s): 斎藤幸恵、有馬孝禮
  • Organizer: 第61回日本木材学会大会
  • Place of Presentation: 京都大学
• [Presentation] マイクロ波による木材炭素化と生成物の特性 (2011)
  • Author(s): 斎藤幸恵、佐藤雅俊
  • Organizer: 第9回木質炭化学会研究発表会
  • Place of Presentation: 秋田ビューホテル
• [Presentation] Investigation of carbonaceous metamorphosis of wood to produce new materials (2011)
  • Author(s): Yukie Saito
  • Place of Presentation: Indonesia, LIPI
• [Presentation] SPRING-LIKE BEHAVORS OF EXFOLIATED HERRINGBONE CARBON WHEN OBSERVING UNDER AN ELECTRON MICROSCOPE (2011)
  • Author(s): Saito Y.
  • Organizer: 2011CESEP
  • Place of Presentation: フランス、ヴィシー
• [Presentation] 木炭中に成長したスパイラル円錐炭素の硫酸インターカレーションによる加工 (2011)
  • Author(s): 斎藤幸恵
  • Organizer: 第21回MRS-Jシンポジウム
  • Place of Presentation: 横浜
• [Presentation] SPRING-LIKE BEHAVORS OF EXFOLIATED HERRINGBONE CARBON WHEN OBSERVING UNDER AN ELECTRON MICROSCOPE (2011)
  • Author(s): Saito Y.
  • Organizer: 2011 CESEP
  • Place of Presentation: フランス、ヴィシー
• [Presentation] スパイラル円錐構造炭素の硫酸層間挿入による膨脹化と、バネ状挙動 (2011)
  • Author(s): 斎藤幸恵
  • Organizer: 第38回炭素材料学会年会
  • Place of Presentation: 名古屋大学
• [Presentation] 炭化細胞壁に生成する円錐黒鉛ウイスカーからの硫酸相間化合物の創製 (2010)
  • Author(s): 斎藤幸恵、有馬孝礼
  • Organizer: 第60回日本木材学会大会
  • Place of Presentation: 宮崎観光ホテル
  • Year and Date: 2010-03-19
• [Presentation] 炭化木材細胞に生成する円錐黒鉛ウイスカーからの硫酸層間化合物の創製 (2010)
  • Author(s): 斎藤幸恵、有馬孝禮
  • Organizer: 第60回日本木材学会大会
  • Place of Presentation: 宮崎観光ホテル
• [Presentation] 木材細胞内腔に担持したヘリンボン型炭素物質の硫酸インターカレーション (2010)
  • Author(s): 斎藤幸恵
  • Organizer: 第37回炭素材料学会年会
• [Remarks] 新聞による研究活動の紹介1,日刊水産経済新聞2009年1月23日