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Activation of Carbon Materials by Plasma Processing and Industrial Application

Research Project

Project/Area Number 07650780
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic materials/Physical properties
Research InstitutionFukui University

Principal Investigator

HORITA Kiyoshi  Fukui University Engineering Professor, 工学部, 教授 (60020195)

Co-Investigator(Kenkyū-buntansha) YONEZAWA Susumu  Fukui University Engineering Research Associate, 工学部, 助手 (80242585)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1995: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsPlasma processing / Carbon black / Oxygen electrode / Surface modification / カーボンブラック
Research Abstract

We have investigated the surface properties which are electric conductivity, wettability, surface functional groups, and rate constant of H_2O_2 decomposition of surface modified acetylene black (AB) by low temperature oxygen plasma of dc glow discharge. This work also describes the relations between the surface properties and the electrochemical behavior in an aqueous KOH solution of the gas diffusion electrodes with oxygen plasma processed AB.The results are as follows ; the conductivity of AB decreases with processing time, the AB surface changes from hydrophobic to hydrophilic, and the processing enhances the H_2O_2 decomposition ability of AB.These facts would be explained by the increase of oxygen functionalities such as aromatic -OH,>C=O,-COOH etc.of AB surface. The polarization and discharge behavior of oxygen electrode with AB have been much improved by the plasma processing. These can be regarded as forming the stable three phase zone owing to adequate wettability, high H_2O_2 decomposition ability, and developed fine pore of the AB electrode. From experiments using a rotating ring disk electrode, it can be concluded that oxygen electrode reaction on AB surface is a two electron reaction forming H_2O_2 as an intermediate.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 堀田紀好: "酸素プラズマプロセシングによるアセチレンブラックの表面修飾とガス拡散電極への応用" 日本化学会誌. 512-517 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K. Horita: "Oxgen Plasma Processing on-to Carbon Black Surface for Gas Diffusion Electrode of Fuell Cell" TANSO. 165. 255-260 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K. Horita: "Surface Modification of Carbon Black by Anodic Oxidation and Electrochemical Characterization" CARBON. 34. 217-222 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Horita et al: "Surface Modification of Acetylene Black by Oxygen Plasma Processing and Application to Gas Diffusion Electrode" Nippon Kagaku Kaishi. No.6. 512-517 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Horita et al: "Oxygen Plasma Processing onto Carbon Black Surface for Gas Diffusion Electrode of Fuel Cell" TANSO. No.165. 255-260 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Horita et al: "Surface Modification of Carbon Black by Anodic Oxidation and Electrochemical Characterization" CARBON. 34-2. 217-222 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 堀田紀好: "酸素プラズマプロセシングによるアセチレンブラックの表面修飾とガス拡散電極への応用" 日本化学会誌. 6. 512-517 (1994)

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Horita: "Oxygen Plasma Processing onto Carbon Black Surface for Gas Diffusion Electrode of Fuel Cell" TANASO. 165. 255-260 (1994)

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Horita: "Surface Modification of Carbon Black by Anodic Oxidation and Electrochemical Characterization" CARBON. 34・2. 217-222 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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