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Journal of Materials Science

, Volume 44, Issue 16, pp 4235–4240 | Cite as

Graphitization behavior of iodine-treated Bombyx mori silk fibroin fiber

  • Md. Majibur Rahman Khan
  • Yasuo GotohEmail author
  • Hideaki Morikawa
  • Mikihiko Miura
Article

Abstract

In order to investigate the graphitization behavior of Bombyx mori silk fibroin (SF) fibers, structural inspection of carbonized SF fibers treated with iodine vapor was studied at different temperatures, from 800 to 1400 °C. Wide angle X-ray diffraction measurement suggested that both untreated and iodinated SF fibers exhibited amorphous structure carbonized to 1200 °C. After carbonization at 1400 °C for 12 h, a graphite-like structure was obtained. Raman spectroscopy and transmission electron microscopic observation showed that the graphite layers of SF fibers became more ordered after iodine treatment. The carbon yield obtained at higher temperature (1400 °C) after iodine treatment was higher, ca. 28 wt%, than that of untreated SF.

Keywords

Carbon Fiber Silk Fibroin Carbon Yield Electric Double Layer Capacitor Iodine Treatment 

Notes

Acknowledgements

This work was supported by The Global COE Program and Grant-in-Aid for Scientific Research program by the Ministry of Education, Science, Sports and Culture of Japan. The authors gratefully thank Professor Fujio Okino, Dr. Yoshiyuki Hattori, and Mr. Hisatoshi Koshikawa, Faculty of Textile Science and Technology, Shinshu University, Japan, for their help in TEM measurements.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Md. Majibur Rahman Khan
    • 1
  • Yasuo Gotoh
    • 2
    Email author
  • Hideaki Morikawa
    • 2
  • Mikihiko Miura
    • 2
  1. 1.Department of Biosystems EngineeringUniversity of ManitobaWinnipegCanada
  2. 2.Faculty of Textile Science and TechnologyShinshu UniversityUeda, NaganoJapan

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