Preparation of Fullerenes by Arc Discharge between Graphite Anode and Tungsten Cathode Effects of Arc Temperatures

Ryusei Ohtsuki; Shoichi Nasu; Kinji Anada; Ryosuke Fujimori; Kentaro Ohhashi; Ryoichi Yamamoto; Keisuke Ohkubo

doi:10.2497/jjspm.51.630

Preparation of Fullerenes by Arc Discharge between Graphite Anode and Tungsten Cathode

Effects of Arc Temperatures

Ryusei Ohtsuki, Shoichi Nasu, Kinji Anada, Ryosuke Fujimori, Kentaro Ohhashi, Ryoichi Yamamoto, Keisuke Ohkubo

著者情報

キーワード: Fullerene, arc discharge, arc temperature, helium, gas pressure

ジャーナルオープンアクセス

2004 年 51 巻 8 号 p. 630-632

DOI https://doi.org/10.2497/jjspm.51.630

詳細

抄録

Effects of arc temperatures (arc positions) on weight ratios of C₇₀ to (C₆₀+C₇₀) in fullerene production were examined by vaporization of graphite inserted in the cathode drop region and in the positive column region in helium (He) arc discharge between two tungsten electrodes. C₇₀ were detected more than C₆₀ in the soot prepared by both vaporizations under He arc discharge between two tungsten electrodes in He gas pressure range of 0.7×10⁴ to 8.0×10⁴ Pa. In addition, C₇₀ were formed more than C₆₀ near the arc position, that is, at higher temperatures than near the wall of the deposition bowl, that is, at lower temperatures.

責任著者(Corresponding author)

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