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http://dx.doi.org/10.5714/CL.2010.11.1.009

C60@MWCNT: Room Temperature Encapsulation of C60 into Multiwall Carbon Nanotubes  

Gupta, Vinay (Carbon Technology Unit, National Physical Laboratory)
Bahl, Om P. (Carbon Technology Unit, National Physical Laboratory)
Mathur, Rakesh B. (Carbon Technology Unit, National Physical Laboratory)
Publication Information
Carbon letters / v.11, no.1, 2010 , pp. 9-12 More about this Journal
Abstract
The synthesis of $C_{60}$@MWCNT was carried out at room temperature (${\sim}25^{\circ}C$) from arc-discharge prepared Multi-wall carbon nanotubes (MWCNTs). They were oxidized and acid treated for tube opening. Then $C_{60}$ molecules were encapsulated into MWCNTs by wetting them with $C_{60}$-toluene solution for several minutes followed by ultrasonification. $C_{60}$@MWCNT was cleaned by pure toluene to remove any excess $C_{60}$. $C_{60}$@MWCNT was characterized by electron microscopy, which showed large scale filling of $C_{60}$ into MWCNTs. It was observed that the mechanism of insertion of $C_{60}$ into MWCNTs may be due to the capillary suction at the opening ends of MWCNTs.
Keywords
Multi-wall carbon nanotube; Fullerenes; Nanomaterials; Transmission electron microscopy; Encapsulation;
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