Structure and texture of phenol-based carbon nanofibers heat-treated at high temperatures
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- Kaburagi Yutaka
- Faculty of Engineering, Tokyo City University
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- Kaitou Yasuhiro
- Faculty of Engineering, Tokyo City University
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- Shindo Emi
- Faculty of Engineering, Tokyo City University
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- Yoshida Akira
- Advanced Research Laboratory, Tokyo City University
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- Iwashita Norio
- National Institute of Advanced Industrial Science and Technology, AIST
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- Yoshizawa Noriko
- National Institute of Advanced Industrial Science and Technology, AIST
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- Kodama Masaya
- National Institute of Advanced Industrial Science and Technology, AIST
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Commercially available phenol-based carbon nanofibers (CNFs) and activated carbon nanofibers (ACNFs) about 200-500 nm in diameter were heated to 900 °C and then heat-treated further at temperatures of 3000-3200 °C. The texture and structure of the both heat-treated samples were investigated by SEM and TEM observations and measurements of XRD and Raman spectra. A large number of fine graphite particles 300-1000 nm in diameter were observed for ACNF much more than for CNF after heat treatment at high temperatures. The result supports the mechanism of generation of the particles by evaporation of carbon species at high temperatures from the nanofibers followed by the deposition, because ACNF has much larger external surface area than CNF. A large volume of graphitic regions and rather small volume of turbostratic regions were observed in the nanofibers of all heat-treated CNFs and ACNFs. The graphitic region was believed to be formed due to surface graphitization as reported for carbon sheets derived from bacteria cellulose nanofibers heat-treated at high temperatures.
収録刊行物
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- 炭素
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炭素 2013 (257), 110-115, 2013
炭素材料学会
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詳細情報 詳細情報について
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- CRID
- 1390282679207657216
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- NII論文ID
- 10031163327
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- NII書誌ID
- AN00140335
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- ISSN
- 18845495
- 03715345
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- NDL書誌ID
- 024689836
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 使用不可