Carbon framework structures produced in the Fullerene related materials

Minato Egashira, Hisao Koura, Yozo Korai, Isao Mochida, John C. Crelling

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Abstract

Soot produced from graphite through arc discharge was separated into four fractions which were structurally analyzed. The toluene-soluble fraction carried C60, C70, and C76-C120 fullerenes while the toluene-insoluble quinoline-soluble fraction (ca. 1 wt%) consisted of larger clusters of C70 to C400 which have a similar framework to C60 or C70 fullerenes. Graphitic substances in the quinoline-insoluble fraction were separated through precipitation in acetone. Combustion of the quinoline-insoluble fraction free from graphitic substances (15 wt%) revealed two kinds of carbon framework structures; one is a pentagon-containing system similar to fullerenes (ca. 30 wt%) and the other is a rather graphitic, hexagonal system (ca. 45 wt%). The pentagon-containing system in 'soot' particles burned in air at temperatures as low as 400°C and was thermally converted to a hexagonal structure by heat treatment above 800°C.

Original languageEnglish
Pages (from-to)615-621
Number of pages7
JournalCarbon
Volume38
Issue number4
DOIs
Publication statusPublished - Jan 1 2000

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Cite this

Egashira, M., Koura, H., Korai, Y., Mochida, I., & Crelling, J. C. (2000). Carbon framework structures produced in the Fullerene related materials. Carbon, 38(4), 615-621. https://doi.org/10.1016/S0008-6223(99)00257-2