Efficient synthesis of carbon nanotube from nanodiamond nuclei by controlling growth driving force

2016 Fiscal Year Final Research Report

• Project/Area Number: 26286015
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials chemistry
• Research Institution: Osaka University
• Principal Investigator: Kobayashi Yoshihiro 大阪大学, 工学(系)研究科(研究院), 教授 (30393739)
• Co-Investigator(Kenkyū-buntansha): 小松 直樹 京都大学, 人間・環境学研究科(研究院), 教授 (30253008)
• Co-Investigator(Renkei-kenkyūsha): Negishi Ryota 大阪大学, 大学院工学研究科, 助教 (30381586)
• Research Collaborator: Kiyoyanagi Noriko 日本化薬(株) ; Arifuku Michiharu 日本化薬(株)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: カーボンナノチューブ / ナノダイヤモンド / 成長駆動力 / 成長制御 / バイオセンサー / ナノ粒子

Outline of Final Research Achievements

Growth of single-walled carbon nanotube (CNT) from nanodiamond (ND) nuclei , non-metallic nanoparticle, was investigated to overcome the difficulty of very narrow growth condition and consequent low growth efficiency, resulting in demonstration of the advantage for practical use of high-purity CNT materials synthesized from ND. Single nm ND with very narrow size distribution was prepared by separation processes using high performance liquid chromatography. Driving force of CNT growth was optimized independently for the initial growth stage of CNT precursor formation and for the steady growth stage thereafter by adjusting the growth gas pressure and composition. Consequently, CNT growth efficiency was significantly improved to grow CNTs from very thin ND layer with narrow size distribution. Biosensor devices fabricated using high-purity CNT films grown from ND was shown to detect biomolecules selectively in very high sensitivity and wide range of their concentration.

Free Research Field

ナノ材料工学