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C60 fullerene tubes as removable templates

Published online by Cambridge University Press:  01 February 2006

Jun-ichi Minato*
Affiliation:
Ecomaterials Center, National Institute for Materials Science, Tsukuba 305-0044, Japan
Kun'ichi Miyazawa*
Affiliation:
Ecomaterials Center, National Institute for Materials Science, Tsukuba 305-0044, Japan
*
a)Address all correspondence to these authors. e-mail: [email protected]
b)Address all correspondence to these authors. e-mail: [email protected]
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Abstract

Crystalline microtubes (inner diameter 240–2100 nm) consisting of C60 fullerene molecules were prepared in the mixture of C60-saturated pyridine and isopropyl alcohol kept at 0 °C. Characterization by transmission electron microscopy showed a linear relationship between the outer diameter and the inner diameter for the C60 fullerene tubes. Optical observations suggested that the specimens already had tubular structure when they were grown in the solution. Deposition of guest crystals inside the C60 fullerene tubes was performed by the following procedure: (i) ultrasonic pulverization to obtain the C60 fullerene tubes with open ends, (ii) absorption of methyl alcohol solution of KBr into the tubes by the capillary attraction, and (iii) evaporation of methyl alcohol to precipitate KBr inside the tubes. Columnar KBr crystals were then obtained by dissolving the fullerene tube walls in toluene.

Type
Articles
Copyright
Copyright © Materials Research Society 2006

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