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Interaction between atmospheric-pressure non-equilibrium plasma and solution studied by optical diagnostics and computer simulations

Research Project

Project/Area Number 23684049
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Plasma science
Research InstitutionOsaka University

Principal Investigator

ITO Tsuyohito  大阪大学, 工学(系)研究科(研究院), 准教授 (70452472)

Project Period (FY) 2011-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥28,470,000 (Direct Cost: ¥21,900,000、Indirect Cost: ¥6,570,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2012: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2011: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Keywords大気圧プラズマ / プラズマー液相相互作用 / プラズマ―液相相互作用 / プラズマ-液相相互作用 / プラズマ-液相相互作用
Research Abstract

Interfacial phenomena to understand interaction between atmospheric-pressure non-equilibrium plasma and solution was studied.
Effects of an externally applied electric field on the water structure at an interface were studied using sum-frequency generation spectroscopy. Electric field, generally applied for atmospheric-pressure plasma generation, should be studied to understand the interfacial phenomena. The interface was calcium fluoride - solution (pH 3.8) interface. Water molecules that have an ice-like structure are strongly affected by an applied electric field. The required electric field is extremely low compared to that expected by the zeta potential. The results suggest that the structure of water molecules can be controlled with relatively weak electric field.
Furthermore, we performed particle simulations to understand energy fluxes delivered to the solution (cathode) from plasma. The results show that energy flux by neutrals can be higher than that delivered by ions.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (16 results)

All 2014 2013 2012 2011 Other

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (12 results) Remarks (2 results)

  • [Journal Article] Flipping Water Molecules at Insulator/Solution Interface using an Externally Applied Weak Electric Field2014

    • Author(s)
      T. Kondo, T. Ito
    • Journal Title

      Appl. Phys. Lett

      Volume: 104 Issue: 10 Pages: 101601-101601

    • DOI

      10.1063/1.4868022

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Journal Article] Rapid Breakdown Mechanisms of Open Air Nanosecond Dielectric Barrier Discharges2011

    • Author(s)
      T.Ito, T.Kanazawa, S.Hamaguchi
    • Journal Title

      Physical Review Letters

      Volume: 107 Issue: 6

    • DOI

      10.1103/physrevlett.107.065002

    • NAID

      120006955423

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] PIC-MCC法によるArおよびHe直流放電生成用陰極への照射粒子エネルギー分布計算2014

    • Author(s)
      近藤崇博, 伊藤剛仁
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      青山学院大学
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] Structure of interfacial water molecules under externally-applied electric field studied by vibrational sum-frequency generation2013

    • Author(s)
      T. Kondo, T. Ito
    • Organizer
      the 66th Gaseous Electronics Conference
    • Place of Presentation
      Princeton, USA
    • Related Report
      2013 Final Research Report
  • [Presentation] 和周波発生分光による界面水分子構造の外部電場依存性の調査2013

    • Author(s)
      近藤崇博, 伊藤剛仁
    • Organizer
      2013年秋季第74回応用物理学会秋季学術講演会
    • Place of Presentation
      同志社大学
    • Related Report
      2013 Final Research Report
  • [Presentation] 大気圧プラズマによる水中脱色反応の研究2013

    • Author(s)
      近藤崇博,鷹尾治樹,伊藤剛仁,伊藤拓宏,横山茂之
    • Organizer
      2013年春季第60回応用物理学関連連合講演会
    • Place of Presentation
      神奈川工科大学
    • Related Report
      2013 Final Research Report
  • [Presentation] Structure of interfacial water molecules under externally-applied electric field studied by vibrational sum-frequency generation2013

    • Author(s)
      T. Kondo, T. Ito
    • Organizer
      The 66th Gaseous Electronics Conference
    • Place of Presentation
      Princeton, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] 和周波発生分光による界面水分子構造の外部電場依存性の調査2013

    • Author(s)
      近藤崇博, 伊藤剛仁
    • Organizer
      2013年秋季 第74回応用物理学会秋季学術講演会
    • Place of Presentation
      同志社大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] 大気圧プラズマによる水中脱色反応の研究2013

    • Author(s)
      近藤崇博,鷹尾治樹,伊藤剛仁,伊藤拓宏,横山茂之
    • Organizer
      2013年春季 第60回応用物理学関連連合講演会
    • Place of Presentation
      神奈川工科大学(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Energetic Neutrals in the Cathode Sheath of Direct-Current Discharges2012

    • Author(s)
      T.Ito
    • Organizer
      The 14th International Workshop on Advanced Plasma Processing and Diagnostic
    • Place of Presentation
      福岡(招待講演)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Zero-Dimensional Reaction Simulations of Reactive Oxygen Species in Water2012

    • Author(s)
      T.Kanazawa, T.Ito, S.Hamaguchi
    • Organizer
      EU-Japan Joint Symposium on Plasma Processing
    • Place of Presentation
      奈良
    • Related Report
      2011 Annual Research Report
  • [Presentation] Electric field measurements in high-pressure discharges by coherent Raman scattering2011

    • Author(s)
      T.Ito
    • Organizer
      The 13th International Workshop on Advanced Plasma Processing and Diagnostic
    • Place of Presentation
      韓国・テジョン(招待講演)
    • Related Report
      2011 Annual Research Report
  • [Presentation] 大気開放誘電体バリア放電中での電界測定2011

    • Author(s)
      伊藤剛仁, 金沢龍也, 浜口智志
    • Organizer
      2011年秋季第72回応用物理学会学術講演会
    • Place of Presentation
      山形
    • Related Report
      2011 Annual Research Report
  • [Presentation] Laser electric field measurement in open-air dielectric barrier discharges2011

    • Author(s)
      T.Ito, T.Kanazawa, S.Hamaguchi
    • Organizer
      64th Gaseous Electronics Conference
    • Place of Presentation
      米国・ソルトレークシティ
    • Related Report
      2011 Annual Research Report
  • [Remarks] ホームページ等

    • URL

      http://www.ppl.eng.osaka-u.ac.jp/tsuyohito/

    • Related Report
      2013 Final Research Report
  • [Remarks] 研究者のグループホームページ

    • URL

      http://www.ppl.eng.osaka-u.ac.jp/tsuyohito/

    • Related Report
      2012 Annual Research Report

URL: 

Published: 2011-04-06   Modified: 2019-07-29  

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