A study on Discharge Plasma Phenomena in Heterogeneous Media Under Controlled Conditions

2010 Fiscal Year Final Research Report

• Project/Area Number: 20340162
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Plasma science
• Research Institution: Kyoto University
• Principal Investigator: TACHIBANA Kunihide Kyoto University, 大学院・理工学研究科, 教授 (40027925)
• Co-Investigator(Kenkyū-buntansha): SAKAI Osamu 京都大学, 大学院・工学研究科, 准教授 (30362445) ; JINNO Masafumi 愛媛大学, 大学院・理工学研究科, 教授 (30274335) ; MOTOMURA Hideki 愛媛大学, 大学院・理工学研究科, 助教 (80332831)
• Project Period (FY): 2008 – 2010
• Keywords: プラズマ基礎過程 / 放電現象 / バブル混合液体 / 液中放電プラズマ

Research Abstract

We have promoted a research on discharge phenomena in heterogeneous media composed of gas and liquid phases under controlled conditions. Firstly, we investigated discharge characteristics in water containing micro-bubbles and atmospheric gas containing liquid mists. Then, we analyzed the plasmas produced in underwater bubbles containing various gases and the discharge aftereffects, and discussed the production and loss processes of reactive species such as H, O, OH, etc.

Research Products

• [Journal Article] Plasma Sources Sci. (2011)
  • Author(s): K.Tachibana, Y.Takekata, Y.Mizumoto, H.Motomura, M.Jinno
  • Journal Title: Technol. Vol.20, No.3 Pages: 034005-1-12
  • Peer Reviewed
• [Journal Article] Microplasma generation in artificial media and its potential applications (2010)
  • Author(s): K.Tachibana
  • Journal Title: Pure and Appl. Chem. Vol.82, No.6 Pages: 1189-1199
  • Peer Reviewed
• [Journal Article] Generation of plasmas in multiphase medium (2010)
  • Author(s): K.Tachibana, T.Shirafuji
  • Journal Title: Trans. Mater. Res. Soc. Japan Vol.35, No.1 Pages: 81-83
  • Peer Reviewed
• [Journal Article] Reduction of CO_2 solute by hydrogen microplasmas in an electrolyte (2009)
  • Author(s): O.Sakai, T.Morita, N.Sano, T.Shirafuji, T.Nozaki, K. Tachibana
  • Journal Title: J.Phys. D : Appl. Phys. Vol.42, No.20 Pages: 202004-1-4
  • Peer Reviewed
• [Journal Article] Underwater microdischarge in arranged micro bubbles produced by electrolysis in electrolyte solution using fabric-type electrode (2008)
  • Author(s): O.Sakai, M.Kimura, T, Shirafuji, K.Tachibana
  • Journal Title: Appl. Phys. Lett. Vol.93, No.23 Pages: 231501-1-3
  • Peer Reviewed
• [Presentation] Variation of spectral shapes observed in underwater discharges (2011)
  • Author(s): K.Tachibana, Y.Takekata, Y.Mizumoto, H.Motomura, M. Jinno
  • Organizer: 6th International Workshop on Microplasmas
  • Place of Presentation: Parice, France
  • Year and Date: 20110400
• [Presentation] Synchronized pulse discharge with generation of bubbles using pulsed injection of gases into water (2010)
  • Author(s): Y.Takekata, H.Motomura, M.Jinno, K.Tachibana
  • Organizer: International Workshop on Plasmas with Liquids
  • Place of Presentation: Matsuyama
  • Year and Date: 20100300
• [Presentation] 構造を有するプラズマと構造を有する媒質中でのプラズマ現象が創成する新しい科学技術 (2009)
  • Author(s): 橘邦英
  • Organizer: 応用物理学会
  • Place of Presentation: 富山
  • Year and Date: 20090900
• [Presentation] Microplasma generation in artificial media and its potential applications (2009)
  • Author(s): 橘邦英
  • Organizer: 19th lnternational Symposium on Plasma Chemistry
  • Place of Presentation: Bochum,Germany
  • Year and Date: 20090700
• [Presentation] Underwater chemical reactions by microplasmas inside microbubbles generated through electrolysis (2009)
  • Author(s): T.Morita, O.Sakai, T.Shirafuji, K.Tachibana
  • Organizer: 19th International Symposium on Plasma Chemistry
  • Place of Presentation: Bochum, Germany
  • Year and Date: 20090700
• [Presentation] Enhancement of OH production rate in plasma on water by mixing Ar (2009)
  • Author(s): T.Shirafuji, T.Morita, O.Sakai, K.Tachibana
  • Organizer: 19th International Symposium on Plasma Chemistry
  • Place of Presentation: Bochum, Germany
  • Year and Date: 20090700
• [Remarks] 液中プラズマ国際ワークショップの開催研究代表者が国際組織委員長として、International Workshop on Plasmas with Liquid (IWPL2010)を2010年3月に松山で開催した。
• [Remarks] 同ワークショップのプロシーディングスとして、学術雑誌Plasma Sources, Science and Technology (IOP発行)の特集号を2011年6月に刊行。