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The effect of heat-treatment on the properties of activated carbon fibre cloth polarizable electrodes

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Abstract

The effect of heat-treatment on the properties of activated carbon fibre cloths (ACFC) as polarizable electrodes has been investigated. The heat-treated ACFC was prepared by heating phenolic resinbased activated carbon fibre cloths at temperatures higher than 1000° C in an inert gas atmosphere. The electrical resistance of ACFC and the specific surface area began to decrease at 1000° C and 1500° C, respectively. The ACFC maintained amorphous structure even when it was treated at 2000° C. The cyclic voltammogram of ACFC heat-treated at 1000° C showed a stable electric double layer in organic electrolytes in the range between−1.5 and 1.5V with respect to SCE. In accordance with the lower resistance of heat-treated ACFC, electric double layer capacitors with ACFC heat-treated at 1000° C showed lower d.c. resistance in comparison with capacitors without heat-treated ACFC.

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Authors and Affiliations

  1. Central Research Laboratories, Matsushita Electric Industrial Co. Ltd., Yagumo-Nakamachi, 570, Moriguchi, Osaka, Japan

    I. Tanahashi, A. Yoshida & A. Nishino

Authors
  1. I. Tanahashi
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  2. A. Yoshida
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  3. A. Nishino
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Tanahashi, I., Yoshida, A. & Nishino, A. The effect of heat-treatment on the properties of activated carbon fibre cloth polarizable electrodes. J Appl Electrochem 21, 28–31 (1991). https://doi.org/10.1007/BF01103825

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  • DOI: https://doi.org/10.1007/BF01103825

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