Preparation of fullerenes by resistive heating vaporization method; Effect of carbon materials

Otsuki, Ryusei*; Nasu, Shoichi*; Fujimori, Ryosuke*; Anada, Kinji*; Ohashi, Kentaro*; Yamamoto, Ryoichi*; Fujii, Kimio; Okubo, Keisuke*

Effects of carbon materials on weight yield of (C $_{60}$ +C $_{70}$ ) and weight ratios of C $_{60}$ to (C $_{60}$ +C $_{70}$ ) in soot were examined by the Joule resistive heating of four kinds of carbon materials at He gas pressures from 0.710 $^{4}$ 8.010 $^{4}$ Pa for collector radii of 45, 50 and 55mm. The yields were in the range of 1 to 8% for graphite with hexagonal lattice, and better than those for glassy carbon. The most effective He gas pressure for the fullerene yield were in the range of 4.05.310 $^{4}$ Pa. Any collector radii dependence of the yields was not observed. The weight ratios of C $_{60}$ to (C $_{60}$ +C $_{70}$ ) were about 60 to 70%, and showed neither He gas pressure depenndennce nor collector radii depenndence four kinds of carbon materials.

Language	:	English
Journal	:	Funtai Oyobi Fummatsu Yakin
Volume	:	51
Number	:	8
Pages	:	p.622 - 625
Publication Year/Month	:	2004/08
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Paper URL	:	https://doi.org/10.2497/jjspm.51.622
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Keywords	:	Carbon Materials; Fullerene; Helium; Gas Pressure; Resistive Heating
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Registration No. : A20040446
JAEA Abstracts No. : 320994
Paper Submission No. : 21395

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