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Preferential arc-discharge production of higher fullerenes

✍ Scribed by Takumi Kimura; Toshiki Sugai; Hisanori Shinohara; Takashi Goto; Kazuyuki Tohji; Isao Matsuoka

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
426 KB
Volume
246
Category
Article
ISSN
0009-2614

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✦ Synopsis

A new method for efficiently generating higher fullerenes is reported. By utilizing the arc-discharge of boron-doped graphite (bulk boronized graphite) electrodes, we have. found that the yield of higher fullerenes (C76-C96) in toluene extracts becomes 35-40 wt% with an optimum boron doping, which is more than twice as large as that obtained in the conventional arc-discharge of 100% graphite rods. A typical absolute yield of the higher fullerenes in soot is 5-6 wt%. The results suggest that some boron-carbon binary clusters play an important role in an early stage of the formation of highe~ fullerenes.

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