Improvement of Electric Conductivity of Non-graphitizable Carbon Material via Breaking-down and Merging of the Microdomains

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  • Kim Doo-Won
    Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • Kil Hyun-Sig
    Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • 中林 康治
    九州大学大学院総合理工学府 | 九州大学先導物質化学研究所
  • 尹 聖昊
    九州大学大学院総合理工学府 | 九州大学先導物質化学研究所
  • 宮脇 仁
    九州大学大学院総合理工学府 | 九州大学先導物質化学研究所

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抄録

Highly graphitized carbon with high electric conductivity was successfully prepared from non-graphitizable carbon (NGC) via breaking-down and merging of boundaries of microdomains through the potassium hydroxide (KOH) treatment and subsequent graphitization. After the graphitization at 2800℃, the KOH-treated sample showed modified domains having merged boundaries between the microdomains which could be observed in graphitizable carbon (GC). Such a domain-modified carbon showed less than half electric resistivity of graphitized NGC, indicating that macroscopic properties, such as electric conductivity, of carbon materials can be improved via the modification of nanometer-scale microdomain and domain structures.

収録刊行物

  • Evergreen

    Evergreen 4 (1), 16-20, 2017-03

    九州大学グリーンテクノロジー研究教育センター

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