Yield of fullerenes generated by contact arc method under He and Ar: dependence on gas pressure

Yahachi Saito, Motonori Inagaki, Hisanori Shinohara, Hideo Nagashima, Masato Ohkohchi, Yoshinori Ando

研究成果: Contribution to journalArticle査読

79 被引用数 (Scopus)

抄録

The yields of toluene-soluble material from carbon soot depend on the buffer gas as well as the pressure. Helium was more effective for yielding fullerenes than argon, and the optimum pressure was 20 Torr, under which a maximum yield of about 13 wt% was obtained. C60 showed a maximum abundance at 20 Torr, while C70 and higher fullerenes (C76, C78 and C84) at a slightly higher pressure between 20 and 50 Torr. Raw soot was also studied by electron microscopy. The pressure dependence of the fullerene yield is discussed in terms of the cooling rate and diffusion of carbon vapor around the evaporation source.

本文言語英語
ページ(範囲)643-648
ページ数6
ジャーナルChemical Physics Letters
200
6
DOI
出版ステータス出版済み - 12 25 1992
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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