A NOVEL EXTRACTION METHOD FOR FULLERENES OVER C-90 IN LARGE QUANTITIES USING HYDROTHERMAL TREATMENT

Authors
TAKAHASHI H GOTO T AKIYAMA K JEYADEVAN B TOHJI K MATSUOKA I
Citation
H. Takahashi et al., A NOVEL EXTRACTION METHOD FOR FULLERENES OVER C-90 IN LARGE QUANTITIES USING HYDROTHERMAL TREATMENT, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 217, 1996, pp. 42-45
Citations number
11
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
217
Year of publication
1996
Pages
42 - 45
Database
ISI
SICI code
0921-5093(1996)217:<42:ANEMFF>2.0.ZU;2-W
Abstract
In this paper, a novel method called Hydrothermally Initiated Dynamic Extractions (HIDE) is proposed for the extraction of fullerenes over C -90. In this method, the soot is hydrothermally treated prior to the e xtraction by organic solvent. The HIDE treatment provides comminution in a microscopic scale as a result of collision between the soot parti cles and the water molecules and initiates weakening and breaking of t he bonds between the fullerenes and the soot. The fullerenes thus free d from the soot are extracted easily in the toluene Soxhlet extraction . The merits of the HDE method are that water neither dissolves fuller enes nor produces any by-products and the extraction efficiency of ful lerenes over C-60 is greatly increased compared with the conventional method.