Raman spectroscopic study of carbon nanotubes prepared using Fe/ZnO-palm olein-chemical vapour deposition

• Published in: Journal of Nanomaterials
• Main Author: Mohd Zobir S.A.; Abu Bakar S.; Abdullah S.; Zainal Z.; Sarijo S.H.; Rusop M.
• Format: Article
• Language: English
• Published: 2012
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84858126417&doi=10.1155%2f2012%2f451473&partnerID=40&md5=abe0a2149f69906d2c194f8ad6f498aa

Multiwalled carbon nanotubes (MWCNTs) were synthesized using Fe/ZnO catalyst by a dual-furnace thermal chemical vapor deposition (CVD) method at 800-1000°C using nitrogen gas with a constant flow rate of 150sccm/min as a gas carrier. Palm olein (PO), ferrocene in the presence of 0.05M zinc nitrate, and a p-type silicon wafer were used as carbon source, catalyst precursor, and sample target, respectively. D, G, and G() bands were observed at 1336-1364, 1559-1680, and 2667-2682cm-1, respectively. Carbon nanotubes (CNTs) with the highest degree of crystallinity were obtained at around 8000°C, and the smallest diameter of about 2nm was deposited on the silicon substrate at 1000°C. © 2012 Syazwan Afif Mohd Zobir et al.