New efficient Fe2O3 and FeMo supported OMCVD catalysts for single wall carbon nanotubes growth

Emmanuel Lamouroux (1) , Philippe Serp (1) , Yolande Kihn (2) , Philippe Kalck (1)

1 LCC - Laboratoire de chimie de coordination
2 CEMES - Centre d'élaboration de matériaux et d'études structurales

Organometallic chemical vapor deposition (OMCVD) has been used for the preparation of Fe2O3/Al2O3 and FeMo/Al2O3 catalysts from zero-valent carbonyl precursors. These systems have been successfully applied in the methane decomposition reaction to produce selectively single wall carbon nanotubes. The performances of these catalysts are compared to that obtained with monometallic Fe/Al2O3 and Mo/Al2O3 systems also prepared by OMCVD. From the results present therein, it appears that the selective production of SWNT is associated with the formation of small iron clusters during the reduction step of an oxide phase.

Mots clés: Bimetallic catalysis; Carbon nanotubes; Chemical vapor deposition; Nanoparticles

Domaines: Matériaux; Catalyse; Chimie inorganique

Emmanuel Lamouroux, Philippe Serp, Yolande Kihn, Philippe Kalck. New efficient Fe2O3 and FeMo supported OMCVD catalysts for single wall carbon nanotubes growth. Catalysis Communications, 2006, 7 (8), pp.604 - 609. ⟨10.1016/j.catcom.2006.01.020⟩. ⟨hal-01889128⟩