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℃, 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 : joint journal of Novel Carbon Resource Sciences & Green Asia Strategy
Volume4
Issue number1
Publication statusPublished - Mar 2017

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Merging
Carbon
Graphitization
Electric conductivity
Electric Conductivity

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title = "Improvement of Electric Conductivity of Non-graphitizable Carbon Material via Breaking-down and Merging of the Microdomains",
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℃, 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.",
author = "Doo-Won Kim and Hyun-Sig Kil and Koji Nakabayashi and Seong-Ho Yoon and Jin Miyawaki",
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AU - Kil, Hyun-Sig

AU - Nakabayashi, Koji

AU - Yoon, Seong-Ho

AU - Miyawaki, Jin

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N2 - 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.

AB - 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.

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