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 journalArticlepeer-review

12 Citations (Scopus)


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
Issue number11
Publication statusPublished - Jul 26 2004

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)


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