Modified Carbon Fiber Electrodes for Carbon Dioxide Reduction

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  • HAMAMOTO Osamu
    Steel Structure or Logistic Hq., Mitsui Engineering & Shipbuilding Co.,Ltd.
  • AKAHORI Yumi
    Department of Industrial Chemistry, Meiji University, School of Science and Technology
  • GOTO Sachiko
    Department of Industrial Chemistry, Meiji University, School of Science and Technology
  • KATO Yumi
    Japan Analysis & Evaluation Center
  • ISHII Mikita
    Department of Industrial Chemistry, Meiji University, School of Science and Technology Japan Analysis & Evaluation Center

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<p>Carbon dioxide was reduced by the surface modified carbon fiber electrodes impregnated with indium to form formic acid which is expected to be available for the chemiluminescent application. The PAN (polyacrylonitrile) based carbon fiber (800°C pre-heated) was baked with aluminum chloride and water in nitrogen atmosphere oven to introduce oxygen atoms and to increase the degree of crystallization, which results in the improvement in hydrogen overvoltage and some electrochemical reactivities. Indium was electrodeposited to the surface modified carbon fibers for the working electrode. The current efficiency of carbon dioxide conversion to formic acid was close to 100%, and trace of by-products such as folmaldehyde and carbon monooxide were detected under the optimum electrochemical conditions. The cell technologies of flow coulometric detectors and redox flow batteries were applied to the design of the electrolytic cells for carbon dioxide reduction.</p>

収録刊行物

  • Electrochemistry

    Electrochemistry 72 (5), 322-327, 2004-05-05

    公益社団法人　電気化学会

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