Preparation of spherical activated carbon with high electric double-layer capacitance

Sang Ick Lee, Satoshi Mitani, Seong-Ho Yoon, Yozo Korai, Isao Mochida

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The preparation of optically anisotropic spherical carbon from coal-based isotropic pitch was investigated. NaOH and KOH were used as activating agents. Spherical carbon with or without pre-calcination was mixed with four times the amount of NaOH and KOH by weight. Capacitance was measured at 25°C in a two electrode system using 1 M Et4NBF4 in propylene carbonate as an electrolyte. The result shows that the high density and moderate reactivity of anisotropy spherical carbon balanced by the pre-calcination and moderate activation with NaOH was indicated in the high capacitance per volume.

Original languageEnglish
Pages (from-to)2332-2334
Number of pages3
JournalCarbon
Volume42
Issue number11
DOIs
Publication statusPublished - Jul 26 2004

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Activated carbon
Capacitance
Carbon
Calcination
Coal
Electrolytes
Propylene
Carbonates
Anisotropy
Chemical activation
Electrodes
propylene carbonate

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Cite this

Preparation of spherical activated carbon with high electric double-layer capacitance. / Lee, Sang Ick; Mitani, Satoshi; Yoon, Seong-Ho; Korai, Yozo; Mochida, Isao.

In: Carbon, Vol. 42, No. 11, 26.07.2004, p. 2332-2334.

Research output: Contribution to journalArticle

Lee, Sang Ick ; Mitani, Satoshi ; Yoon, Seong-Ho ; Korai, Yozo ; Mochida, Isao. / Preparation of spherical activated carbon with high electric double-layer capacitance. In: Carbon. 2004 ; Vol. 42, No. 11. pp. 2332-2334.
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AU - Mitani, Satoshi

AU - Yoon, Seong-Ho

AU - Korai, Yozo

AU - Mochida, Isao

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Y1 - 2004/7/26

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AB - The preparation of optically anisotropic spherical carbon from coal-based isotropic pitch was investigated. NaOH and KOH were used as activating agents. Spherical carbon with or without pre-calcination was mixed with four times the amount of NaOH and KOH by weight. Capacitance was measured at 25°C in a two electrode system using 1 M Et4NBF4 in propylene carbonate as an electrolyte. The result shows that the high density and moderate reactivity of anisotropy spherical carbon balanced by the pre-calcination and moderate activation with NaOH was indicated in the high capacitance per volume.

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