KOH activation of carbon nanofibers

Seong Ho Yoon, Seongyop Lim, Yan Song, Yasunori Ota, Wenming Qiao, Atsushi Tanaka, Isao Mochida

Research output: Contribution to journalArticle

245 Citations (Scopus)

Abstract

Catalytically grown carbon nanofiber (CNF) was activated with KOH to attain a high surface area with porous structure. The structural change of CNFs through KOH activation was investigated by using SEM, TEM and XRD. KOH activation was found to be effective to develop particular pore sizes on the CNF surface, increasing the surface area of CNF. The increase of surface area in KOH activation of CNF is first ascribed to local broadening of graphene interstices or local burn-off of graphenes, which limit the surface area increase of CNF with the fiber structure maintained. The activation under severe conditions caused to destroy the fiber structure of CNF. Activated CNFs were applied as an electrode for electrical double layer capacitors to be compared to active carbon fibers in terms of the surface properties.

Original languageEnglish
Pages (from-to)1723-1729
Number of pages7
JournalCarbon
Volume42
Issue number8-9
DOIs
Publication statusPublished - Jun 7 2004

Fingerprint

Carbon nanofibers
Chemical activation
Graphite
Fibers
Graphene
Carbon fibers
Pore size
Surface properties
Capacitors
Transmission electron microscopy
Scanning electron microscopy
Electrodes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Cite this

Yoon, S. H., Lim, S., Song, Y., Ota, Y., Qiao, W., Tanaka, A., & Mochida, I. (2004). KOH activation of carbon nanofibers. Carbon, 42(8-9), 1723-1729. https://doi.org/10.1016/j.carbon.2004.03.006

KOH activation of carbon nanofibers. / Yoon, Seong Ho; Lim, Seongyop; Song, Yan; Ota, Yasunori; Qiao, Wenming; Tanaka, Atsushi; Mochida, Isao.

In: Carbon, Vol. 42, No. 8-9, 07.06.2004, p. 1723-1729.

Research output: Contribution to journalArticle

Yoon, SH, Lim, S, Song, Y, Ota, Y, Qiao, W, Tanaka, A & Mochida, I 2004, 'KOH activation of carbon nanofibers', Carbon, vol. 42, no. 8-9, pp. 1723-1729. https://doi.org/10.1016/j.carbon.2004.03.006
Yoon SH, Lim S, Song Y, Ota Y, Qiao W, Tanaka A et al. KOH activation of carbon nanofibers. Carbon. 2004 Jun 7;42(8-9):1723-1729. https://doi.org/10.1016/j.carbon.2004.03.006
Yoon, Seong Ho ; Lim, Seongyop ; Song, Yan ; Ota, Yasunori ; Qiao, Wenming ; Tanaka, Atsushi ; Mochida, Isao. / KOH activation of carbon nanofibers. In: Carbon. 2004 ; Vol. 42, No. 8-9. pp. 1723-1729.
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