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Korean Carbon Society (한국탄소학회)
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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)
  • Received : 2009.12.28
  • Accepted : 2010.03.10
  • Published : 2010.03.30
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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.

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