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Study on chemical reactions in single-walled carbon nanotube hollow cores for prebiotic synthesis of organic molecules

Research Project

Project/Area Number 20K20946
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 17:Earth and planetary science and related fields
Research InstitutionNagoya Institute of Technology

Principal Investigator

KAWASAKI SHINJI  名古屋工業大学, 工学(系)研究科(研究院), 教授 (40241294)

Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywordsカーボンナノチューブ / 内包 / 初期地球 / 生物有機物 / 擬高圧効果 / 電気化学還元 / 擬高圧力 / 有機分子合成 / 電気化学反応 / 硫黄 / 二酸化炭素
Outline of Research at the Start

生命の起源を考えるうえで非生物的に有機物がどのように合成できるかを調べることは重要である。この非生物的有機物合成に関して多くの研究が行われてきたが、本研究はこれまでとは全く異なるアプローチでこの問題に取り組む。本研究では単層カーボンナノチューブ内の擬似高圧力場を利用して無機小分子から生物有機分子の合成を試みる。

Outline of Final Research Achievements

We found some phenomena in the course of this investigation, although we could not prepare primitive organic molecules from inorganic molecules encapsulated in single-walled carbon nanotubes (SWCNTs) that was the original purpose of the investigation. Firstly, we prepared sulfur molecules encapsulated in SWCNTs (S@SWCNTs). It was shown by Raman spectroscopic measurements that the molecular structure of the encapsulated sulfur moles is different from that of bulk sulfur powder sample and is dependent on the diameter of the host SWCNTs. We also prepared iron sulfide molecules encapsulated in SWCNTs (FeSx@SWCNTs) from S@SWCNTs. We found that some unidentified reduction products are formed by an electrochemical reduction of carbon dioxides in FeSx@SWCNTs.

Academic Significance and Societal Importance of the Research Achievements

単層カーボンナノチューブ(SWCNT)のチューブ内に挿入された硫黄分子がチューブ径により異なる分子構造をとることを実験的に明らかにした。このことは、ナノメートルサイズの直径の筒状構造の空間のもつ特異性を示すものであり、学術的な意義がある。また、この特異な空間で二酸化炭素の電気化学還元実験を行うことができることを示し、かつその還元生成物の分析を実施できたことは実験の幅を広げる意味で有意義な成果である。さらに、こうした実験を通して初期地球の生命有機物の生成に関して議論できることを示したことは今後の研究の進展につながる意義深い試みである。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Single-walled carbon nanotubes as reducing agent for the synthesis of Prussian blue-based composite: a quartz crystal microbalance study2022

    • Author(s)
      Yosuke Ishii, Ayar Al-zubaidi, Yoshimitsu Taniguchi, Shinya Jindo, and Shinji Kawasaki
    • Journal Title

      Nanoscale Advances

      Volume: 4 Issue: 2 Pages: 510-520

    • DOI

      10.1039/d1na00739d

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultra-fine metal particles dispersed on single-walled carbon nanotubes for energy devices2022

    • Author(s)
      Yosuke Ishii, Sae Ishikawa, Itta Yamada, Kohei Kondo, Shinya Jindo, Shinji Kawasaki, Yoshiyuki Hattori, Oleksandr Mashkov, and Wolfgang Heiss
    • Journal Title

      Journal of Materials Science

      Volume: 57 Issue: 6 Pages: 4300-4310

    • DOI

      10.1007/s10853-022-06894-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Iodine redox reactions in single-walled carbon nanotube hollow cores for rechargeable iodine cathode-based energy storage2022

    • Author(s)
      Ayar Al-zubaidi, Remi Date, Yuna Yokoya, Yosuke Ishii, Shinji Kawasaki
    • Journal Title

      Carbon Reports

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Flexible Photocatalytic Electrode Using Graphene, Non-noble Metal, and Organic Semiconductors for Hydrogen Evolution Reaction2021

    • Author(s)
      Kohei Kondo, Yusuke Watanabe, Junya Kuno, Yosuke Ishii, Shinji Kawasaki, Masashi Kato, Golap Kalita, Yoshiyuki Hattori, Oleksandr Mashkov, Mykhailo Sytnyk, and Wolfgang Heiss
    • Journal Title

      Energy Technology

      Volume: 9 Issue: 8

    • DOI

      10.1002/ente.202100123

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Switching of alternative electrochemical charging mechanism inside single-walled carbon nanotubes: a quartz crystal microbalance study2021

    • Author(s)
      Ayar Al-zubaidi, Mikako Takahashi, Yosuke Ishii, and Shinji Kawasaki
    • Journal Title

      RSC Advances

      Volume: 11 Issue: 48 Pages: 30253-30258

    • DOI

      10.1039/d1ra04398f

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] One-step synthesis of visible light CO2 reduction photocatalyst from carbon nanotubes encapsulating iodine molecules2021

    • Author(s)
      A. Alzubaidi, K. Kobayashi, Y. Ishii, S. Kawasaki
    • Journal Title

      Sci. Rep.

      Volume: - Issue: 1

    • DOI

      10.1038/s41598-021-89706-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Photo-devices using encapsulation of iodine molecules in single-walled carbon nanotubes2022

    • Author(s)
      Shinji Kawasaki
    • Organizer
      2nd International Conference on Nanomaterials for Energy Conversion and Storage Applications (NECSA-2022)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] New energy cycle “HI cycle” to repeat solar hydrogen generation and battery power generation2022

    • Author(s)
      Shinji Kawasaki, Kenta Kobayashi, Yosuke Ishii
    • Organizer
      第62回フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Aqueous electrolyte batteries using the encapsulation properties of single-walled carbon nanotubes2022

    • Author(s)
      Yuna Yokoya, Yosuke Ishii, Shinji Kawasaki
    • Organizer
      第62回フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Solar CO2 reduction properties of AgI/SWCNT/AgIO3 and g-C3N4/SWCNT/Cu photocatalysts2022

    • Author(s)
      Jumpei Hayashi, Kenta Kobayashi, Sae Ishikawa, Shunsuke Sato, Yosuke Ishii, Shinji Kawasaki
    • Organizer
      第62回フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] カーボンナノチューブ内包分子の反応を利用した光触媒開発2021

    • Author(s)
      川崎晋司、石井陽祐
    • Organizer
      学振117委員会
    • Related Report
      2020 Research-status Report
  • [Presentation] 単層カーボンナノチューブに内包された硫黄の構造の特徴2020

    • Author(s)
      糟谷 栞, 石井 陽祐, 川崎 晋司
    • Organizer
      第47回炭素材料学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 単層カーボンナノチューブ電極の水系電解液中における耐酸化性の評価2020

    • Author(s)
      ウーガンバヤル ナムーン, 神藤 慎弥, 石井 陽祐, 川崎 晋司
    • Organizer
      第47回炭素材料学会年会
    • Related Report
      2020 Research-status Report

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Published: 2020-08-03   Modified: 2023-01-30  

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