Influence of carbon structure of the anode on the production of graphite in single-walled carbon nanotube soot synthesized by arc discharge using a Fe-Ni-S catalyst

Hikaru Nishizaka, Masaru Namura, Kenichi Motomiya, Yasumasa Ogawa, Yasuo Udagawa, Kazuyuki Tohji, Yoshinori Sato

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We investigated the production of the graphite contained in the soot of single-walled carbon nanotubes (SWCNTs) synthesized using the arc discharge method with a poorly graphitized carbon (PGC) rod in comparison to a graphite rod. A PGC rod was produced using a mixture of coal tar and carbon black and was heat treated to 1000 °C. The rod was packed with a mixture of iron (Fe), nickel (Ni), sulfur (S), and PGC and used for the production of SWCNT soot using arc discharge. From the results of X-ray diffraction and electron microscopy, the amount of graphite in the SWCNT soot synthesized by PGC rod was lower than that by graphite rod. The production of graphite in the soot was found to be dependent on the carbon structure of the anode and the current density of arc discharge.

Original languageEnglish
Pages (from-to)3607-3614
Number of pages8
JournalCarbon
Volume49
Issue number11
DOIs
Publication statusPublished - 2011 Sep

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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