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Fluorination of Cup-stacked Carbon Nanotubes, Structures and Properties

Published online by Cambridge University Press:  01 February 2011

Hidekazu Touhara ,
Akiko Yonemoto ,
Kazunao Yamamoto ,
Shingo Komiyama ,
Shinji Kawasaki ,
Fujio Okino ,
Takashi Yanagisawa  and
Morinobu Endo
Hidekazu Touhara
Affiliation:
Faculty of Textile Science and Technology, Shinshu University, Ueda 386–8567, Japan
Akiko Yonemoto
Affiliation:
Faculty of Textile Science and Technology, Shinshu University, Ueda 386–8567, Japan
Kazunao Yamamoto
Affiliation:
Faculty of Textile Science and Technology, Shinshu University, Ueda 386–8567, Japan
Shingo Komiyama
Affiliation:
Faculty of Textile Science and Technology, Shinshu University, Ueda 386–8567, Japan
Shinji Kawasaki
Affiliation:
Graduate School of Engineering, Nagoya Institute of Technology, Nagoya 466–8555, Japan.
Fujio Okino
Affiliation:
Faculty of Textile Science and Technology, Shinshu University, Ueda 386–8567, Japan
Takashi Yanagisawa
Affiliation:
Faculty of Engineering, Shinshu University, Nagano 380–8553, Japan
Morinobu Endo
Affiliation:
Faculty of Engineering, Shinshu University, Nagano 380–8553, Japan
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Abstract

Cup-stacked carbon nanotubes (Cup-CNTs) was fluorinated in a temperature range RT-500• •by 0.5–1 atm elemental fluorine. The F/C atomic ratio (CF0.4-CF1.2) and the color are strongly dependent on the fluorination conditions. The color of fluorinated Cup-CNTs (F-Cup-CNTs) varies from black, through gray and yellow to white. The form and morphology of the pristine tubes were well preserved after fluorination, and the fluorination results in the functionalization and modification of pristine Cup-CNTs with respect to electrochemical properties. The F-Cup-CNTs as cathodes for primary Li cells discharge satisfactorily with 100% cathode utility.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 858: Symposium HH – Functional Carbon Nanotubes , 2004 , HH12.3
Copyright
Copyright © Materials Research Society 2005

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References

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