Growth of Carbon Nanotubes on Quasicrystalline Alloys

Jariwala, Deep and Chandra , Kaushik and Cao, Anyuan and Saikat , Talapatra and Shima, Mutshihiro and Anuhya, D and Prasad, V V S and Ribeiro, R and Canfield, P C and Wu, D and Srivastava , Anchal and Mandal, R K and Pramanick, A K and Vajtai , Robert and Ajayan , Pulickel M and Sastry, G V S (2012) Growth of Carbon Nanotubes on Quasicrystalline Alloys. The Banaras Metallurgist, 17 . pp. 57-67.

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We report on the synthesis of carbon nanotubes on quasicrystalline alloys. Aligned multiwalled carbon nanotubes (MWNTs) on the conducting faces of decagonal quasicrystals were synthesized using floating catalyst chemical vapor deposition. The alignment of the nanotubes was found perpendicular to the decagonal faces of the quasicrystals. A comparison between the growth and tube quality has also been made between tubes grown on various quasicrystalline and SiO2 substrates. While a significant MWNT growth was observed on decagonal quasicrystalline substrate, there was no significant growth observed on icosahedral quasicrystalline substrate. Raman spectroscopy and high resolution transmission electron microscopy (HRTEM) results show high crystalline nature of the nanotubes. Presence of continuous iron filled core in the nanotubes grown on these substrates was also observed, which is typically not seen in MWNTs grown using similar process on silicon and/or silicon dioxide substrates. The study has important implications for understanding the growth mechanism of MWNTs on conducting substrates which have potential applications as heat sinks

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Quasicrystals, CNT, HRTEM, Growth
Divisions:Material Science and Technology
ID Code:6573
Deposited By:Dr. A.K. Pramanick
Deposited On:23 Apr 2013 11:47
Last Modified:23 Apr 2013 11:47
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