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

doi:10.5109/1808307

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

Department of Advanced Device Materials

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

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 language	English
Pages (from-to)	16-20
Number of pages	5
Journal	Evergreen
Volume	4
Issue number	1
DOIs	https://doi.org/10.5109/1808307
Publication status	Published - 2017

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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10.5109/1808307

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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°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.",

author = "Kim, {Doo Won} and Kil, {Hyun Sig} and Koji Nakabayashi and Yoon, {Seong Ho} and Jin Miyawaki",

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T1 - Improvement of electric conductivity of non-graphitizable carbon material via breaking-down and merging of the microdomains

AU - Kim, Doo Won

AU - Kil, Hyun Sig

AU - Nakabayashi, Koji

AU - Yoon, Seong Ho

AU - Miyawaki, Jin

N1 - Funding Information: This research was financially supported by the Ministry of Trade, Industry and Energy (MOTIE) and the Korea Institute for Advancement of Technology (KIAT) through the International Cooperative R&D program. Publisher Copyright: © 2017, Novel Carbon Resource Sciences. All rights reserved.

PY - 2017

Y1 - 2017

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°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.

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°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.

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

Abstract

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