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Characterization of Activated Carbon Fibers

Published online by Cambridge University Press:  26 February 2011

A. W. P. Fung ,
A. M. Rao ,
K. Kuriyama ,
M. S. Dresselhaus ,
G. Dresseliiaus  and
M. Endot
A. W. P. Fung
Affiliation:
Department of Electrical Engineering, Massachusetts Institute of Technology, Cambridge, MA
A. M. Rao
Affiliation:
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA
K. Kuriyama
Affiliation:
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA
M. S. Dresselhaus
Affiliation:
Department of Electrical Engineering, Massachusetts Institute of Technology, Cambridge, MA Department of Physics, Massachusetts Institute of Technology, Cambridge, MA
G. Dresseliiaus
Affiliation:
Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge,MA
M. Endot
Affiliation:
Faculty of Engineering, Shinshu University, Nagano, Japan

Abstract

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Low-temperature electrical conductivity and Raman scattering are studied as characterization tools for activated carbon fibers, which have a high density of defects and a huge specific surface area. The transport mechanism at low temperature is governed by variablerange hopping, as in other strongly disordered systems. From the Raman spectra obtained, we deduce that the long phenolic fibers are more disordered than the acrylic fibers and that increased specific surface area corresponds to increased disorder. The average in-plane microcrystallite size is about 20–30 Å.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 209: Symposium K – Defects in Materials , 1990 , 335
Copyright
Copyright © Materials Research Society 1991

References

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