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Characterization of Activated Carbon Fibers

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Abstract

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

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Acknowledgement

We would like to express our gratitude to Dr. D. E. Heiman of the National Magnet Lab., M.I.T., for generously allowing us to use his optical equipment. We treasure the many enlightening discussions with Mr. di Vittorio of the Dept. of Materials Science at M.I.T. We would also like to acknowledge the Lawrence Livermore National Laboratory for support of this work under subcontract B130530.

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Authors and Affiliations

  1. Department of Electrical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA

    A. W. P. Fung & M. S. Dresselhaus

  2. Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA

    A. M. Rao, K. Kuriyama & M. S. Dresselhaus

  3. Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA

    G. Dresseliiaus

  4. Faculty of Engineering, Shinshu University, Nagano, Japan

    M. Endot

Authors
  1. A. W. P. Fung
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  2. A. M. Rao
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  3. K. Kuriyama
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  4. M. S. Dresselhaus
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  5. G. Dresseliiaus
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  6. M. Endot
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Fung, A.W.P., Rao, A.M., Kuriyama, K. et al. Characterization of Activated Carbon Fibers. MRS Online Proceedings Library 209, 335–340 (1990). https://doi.org/10.1557/PROC-209-335

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  • DOI: https://doi.org/10.1557/PROC-209-335

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