The Production of CNT Flower-Like Structures with 3-Fold and 4-Fold Symmetries on a Pt/Si Substrate - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Advances in Chemical Engineering and Science Année : 2013

The Production of CNT Flower-Like Structures with 3-Fold and 4-Fold Symmetries on a Pt/Si Substrate

Résumé

Carbon nanotubes flower (CNTs-F) films were prepared by catalytic chemical vapor deposition (CVD) on a platinum (Pt) thin layer, supported on a silicon wafer. The products were synthesized from an aerosol composed of ferrocene and toluene, as catalyst and carbon precursor respectively, at 820. The high synthesis temperature induces a modification of a Pt thin layer to a nano-structured island giving rise to the formation of CNTs-F during the following films growth step by CVD process. The suggested mechanism involves the selective diffusion of the catalyst and carbon atoms through the Pt grain boundaries. This results in the appearance of flower-like structures with 3-and 4-fold symmetries.

Domaines

Matériaux

Dates et versions

hal-01872815 , version 1 (12-09-2018)

Identifiants

Citer

Madjid Arab, Marjorie David, Christophe Valmalette, Christophe Ramseyer. The Production of CNT Flower-Like Structures with 3-Fold and 4-Fold Symmetries on a Pt/Si Substrate. Advances in Chemical Engineering and Science, 2013, 03 (01), pp.78 - 81. ⟨10.4236/aces.2013.31009⟩. ⟨hal-01872815⟩
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