Improvement of electric conductivity of non-graphitizable carbon material via breaking-down and merging of the microdomains

Doo Won Kim, Hyun Sig Kil, Koji Nakabayashi, Seong Ho Yoon, Jin Miyawaki

Research output: Contribution to journalArticle

Abstract

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°C, 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.

Original languageEnglish
Pages (from-to)16-20
Number of pages5
JournalEvergreen
Volume4
Issue number1
DOIs
Publication statusPublished - Jan 1 2017

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Surfaces, Coatings and Films
  • Management, Monitoring, Policy and Law

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