• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Effect of Plasma-Excited Radicals Distribution on Organic Reaction Process

Research Project

Project/Area Number 19H02079
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 19020:Thermal engineering-related
Research InstitutionEhime University

Principal Investigator

NOMURA SHINFUKU  愛媛大学, 理工学研究科(工学系), 教授 (20263957)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Keywordsプラズマプロセス / プラズマ放電 / LIF / 燃料合成 / 有機物分解 / ヒドロキシラジカル / パルス放電 / プラズマ / ラジカル / 液中プラズマ / 有機反応
Outline of Research at the Start

プラズマはラジカルの高い励起エネルギーを供給できるので、基底状態では空軌道のいろいろな箇所に電子が入り込むことで、非常に活性の高い状態をとることができる。本研究ではこれらの励起ラジカルが有機反応プロセスに及ぼす影響を明らかにし、選択的に有機反応プロセスを行う方法を検討する。そして、本研究成果を新規の触媒開発や無触媒による難分解物質分解・合成技術として展開していく。

Outline of Final Research Achievements

Plasma was generated between an electrode installed above the water surface and the water surface, the density of OH radicals generated by the plasma discharge was measured by the LIF method. The YAG laser excitation dye laser used as the excitation light generated 564 nm which was converted to 282 nm using a wavelength conversion unit. The generated excitation light was introduced into the plasma generation region. OH radicals are generated at the rise of the power supply voltage and then attenuated. The ground state OH radicals are generated in much greater numbers than the excited OH radicals and have a longer lifetime. Fuel synthesis and organic matter decomposition by a series of plasma discharges have been carried out, and some useful results have been obtained.

Academic Significance and Societal Importance of the Research Achievements

本研究では、水プラズマで発生する励起軌道の異なるOHラジカルの発光の測定とその寿命の測定を実施した。プラズマの発生はラジカルの高励起状態の達成が可能となるため、触媒を利用する方法が主流であった化学反応を、プラズマ界面に発生する大量の荷電粒子や中性粒子の運動を物理的に刺激することによって、低温環境下での触媒性能の発現や、触媒を必要としない科学プロセスや、酸化・還元反応に選択性を持たせる可能性があることを示した。本実験の成果は、セルロース分解で使われるセルラーゼや水素発生で使われるパラジウムなどの高価な触媒を使用しないプロセス研究に展開できる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (10 results)

All 2022 2021 2020 2019 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 4 results) Remarks (1 results)

  • [Journal Article] Enzyme-free saccharification of cellulose to glucose using ultrasonic welding2022

    • Author(s)
      Nomura Shinfuku、Murase Taiki、Kodama Takeru、Mukasa Shinobu、Iwamoto Yukiharu
    • Journal Title

      International Journal of Thermofluids

      Volume: 13 Pages: 100137-100137

    • DOI

      10.1016/j.ijft.2022.100137

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] One-step Ammonia Synthesis by In-liquid Plasma under Ordinary Temperature and Pressure2020

    • Author(s)
      Rosuke OKAMOTO, Ryoya SHIRAISHI, Shinfuku NOMURA, Hiromichi TOYOTA, and Shota SHIMOKAWA
    • Journal Title

      Journal of the Japan Institute of Energy

      Volume: 99 Issue: 8 Pages: 94-98

    • DOI

      10.3775/jie.99.94

    • NAID

      130007892974

    • ISSN
      0916-8753, 1882-6121
    • Year and Date
      2020-08-20
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Methylene Blue Decomposition Via Various In-liquid Plasma Methods2020

    • Author(s)
      Kazuki TANGE, Shinfuku NOMURA, Junichi NAKAJIMA
    • Journal Title

      Journal of the Japan Institute of Energy

      Volume: 99 Issue: 8 Pages: 99-103

    • DOI

      10.3775/jie.99.99

    • NAID

      130007892970

    • ISSN
      0916-8753, 1882-6121
    • Year and Date
      2020-08-20
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Density distribution of OH radicals by discharge on water surface2021

    • Author(s)
      Hideki Motomura, Shinfuku Nomura, Taiki Murase, Yuta Kawaji
    • Organizer
      Second Asian Conference on Thermal Sciences(2nd ACTS )
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Methylene blue decomposition via various in-liquid plasma methods2019

    • Author(s)
      Kazuki Tange, Shinfuku Nomura, Junichi Nakajima
    • Organizer
      8th Joint Conference on Renewable Energy and Nanotechnology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] One-step ammonia synthesis under by in-liquid plasma ordinary temperature and pressure2019

    • Author(s)
      Kosuke Okamoto, Ryoya Shiraishi, Shinfuku Nomura, Hiromichi Toyota, Shota Shimokawa
    • Organizer
      8th Joint Conference on Renewable Energy and Nanotechnology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sintering of Copper Nanoparticles Synthesized by Pulsed Discharge Method in Methanol2019

    • Author(s)
      Riku Yamada, Shinobu Mukasa, Ryota Kikuchi, Koichiroh Sakai, Shinfuku Nomura
    • Organizer
      8th Joint Conference on Renewable Energy and Nanotechnology (November 2019, Makassar
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 液中プラズマ法の水蒸気改質反応によるn-ドデカンからの水素製造2019

    • Author(s)
      天野 祐希, 野村 信福, 白石 僚也, 向笠 忍
    • Organizer
      第56回日本伝熱シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] 加圧NaCl水溶液中でのパルス放電法の開発と発光スペクトル測定2019

    • Author(s)
      名和 賢吾,向笠 忍,松田 昌大,大家 拓巳, 野村 信福
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Remarks]

    • URL

      https://www.me.ehime-u.ac.jp/labo/kikaiene/netubutu/achievements.html

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi