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

Abstract : 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.
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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, Royal Society of Chemistry, 2000, vol. 10, pp. 249-252. ⟨10.1039/a908593i⟩. ⟨hal-00942779⟩

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