Fabrication of uniform graphene discs via transversal cutting of carbon nanofibers

Donghui Long, Jin Yong Hong, Wei Li, Jin Miyawaki, Licheng Ling, Isao Mochida, Seong Ho Yoon, Jyongsik Jang

研究成果: ジャーナルへの寄稿記事

22 引用 (Scopus)

抄録

The graphene discs with well-defined shape are successfully fabricated using a simple oxidation and exfoliation process of high-crystalline carbon nanofibers (CNFs). To control the shapes of graphene discs, two different types of CNFs (platelet and herringbone-type) are used as starting materials. The CNFs are formed by the perpendicular stacking of graphene discs, resulting in free edges on the external surface and ready access to interlay spaces. Interestingly, the diameter and shape of the graphene discs can be controlled by selectively designing the morphology of starting materials and optimizing the cutting method. In addition, a mechanical reduction method for oxidized graphene discs is also proposed in order to combine the high recovery of π-conjugated electronic structure with the solution processability of graphene discs. The reduced graphene discs can be formed without any additives, such as reducing agent, and are highly dispersed in different solvents with a high content of graphene discs. This novel strategy offers great possibility for fabricating various graphene-based nanomaterials with rational nanostructure design.

元の言語英語
ページ(範囲)6254-6261
ページ数8
ジャーナルACS nano
5
発行部数8
DOI
出版物ステータス出版済み - 8 23 2011

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Carbon nanofibers
Graphite
Graphene
graphene
Fabrication
fabrication
carbon
Reducing Agents
Reducing agents
Platelets
platelets
Nanostructured materials
Electronic structure
Nanostructures
recovery
electronic structure
Crystalline materials
Recovery
Oxidation
oxidation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

これを引用

Long, D., Hong, J. Y., Li, W., Miyawaki, J., Ling, L., Mochida, I., ... Jang, J. (2011). Fabrication of uniform graphene discs via transversal cutting of carbon nanofibers. ACS nano, 5(8), 6254-6261. https://doi.org/10.1021/nn201195g

Fabrication of uniform graphene discs via transversal cutting of carbon nanofibers. / Long, Donghui; Hong, Jin Yong; Li, Wei; Miyawaki, Jin; Ling, Licheng; Mochida, Isao; Yoon, Seong Ho; Jang, Jyongsik.

:: ACS nano, 巻 5, 番号 8, 23.08.2011, p. 6254-6261.

研究成果: ジャーナルへの寄稿記事

Long, D, Hong, JY, Li, W, Miyawaki, J, Ling, L, Mochida, I, Yoon, SH & Jang, J 2011, 'Fabrication of uniform graphene discs via transversal cutting of carbon nanofibers', ACS nano, 巻. 5, 番号 8, pp. 6254-6261. https://doi.org/10.1021/nn201195g
Long, Donghui ; Hong, Jin Yong ; Li, Wei ; Miyawaki, Jin ; Ling, Licheng ; Mochida, Isao ; Yoon, Seong Ho ; Jang, Jyongsik. / Fabrication of uniform graphene discs via transversal cutting of carbon nanofibers. :: ACS nano. 2011 ; 巻 5, 番号 8. pp. 6254-6261.
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abstract = "The graphene discs with well-defined shape are successfully fabricated using a simple oxidation and exfoliation process of high-crystalline carbon nanofibers (CNFs). To control the shapes of graphene discs, two different types of CNFs (platelet and herringbone-type) are used as starting materials. The CNFs are formed by the perpendicular stacking of graphene discs, resulting in free edges on the external surface and ready access to interlay spaces. Interestingly, the diameter and shape of the graphene discs can be controlled by selectively designing the morphology of starting materials and optimizing the cutting method. In addition, a mechanical reduction method for oxidized graphene discs is also proposed in order to combine the high recovery of π-conjugated electronic structure with the solution processability of graphene discs. The reduced graphene discs can be formed without any additives, such as reducing agent, and are highly dispersed in different solvents with a high content of graphene discs. This novel strategy offers great possibility for fabricating various graphene-based nanomaterials with rational nanostructure design.",
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