Synthesis of single-walled carbon nanotube-Co-MgO composite powders and extraction of the nanotubes

Emmanuel Flahaut (1) , Alain Peigney (1) , Christophe Laurent (1) , Abel Rousset (1)

1 LCMI - Laboratoire de Chimie des Matériaux Inorganiques

A carbon nanotube-Co-MgO composite powder is prepared by reducing a Mg0.9Co0.1O solid solution in H2-CH4 atmosphere. The oxide matrix and part of the Co catalyst are dissolved by acid treatment without damage to the nanotubes. More than 80% of the carbon nanotubes have either one or two walls. The diameters of the nanotubes are in the range 0.5-5 nm. The utilized method may be a real improvement in the low-cost, large-scale synthesis of single- and double-walled carbon nanotubes.

Mots clés: Single-walled carbon nanotubes; Double-walled carbon nanotubes; Purification

Domaines: Matériaux; Matériaux

Emmanuel Flahaut, Alain Peigney, Christophe Laurent, Abel Rousset. Synthesis of single-walled carbon nanotube-Co-MgO composite powders and extraction of the nanotubes. Journal of Materials Chemistry, 2000, vol. 10, pp. 249-252. ⟨10.1039/a908593i⟩. ⟨hal-00942779⟩