Synthesis and characterization of Ni-Si mixed oxide nanocomposite as a catalyst for carbon nanotubes formation

Ni-Si mixed oxide nanocomposite was prepared by co-precipitation method with Ni(NO 3 ) 2 · 6H 2 O and tetraethylorthosilicate (TEOS) at pH = 10.5 under reflux condition for 6 days. It was then used as a catalyst for the formation of carbon nanotubes (CNTs) by CVD procedure. Characterization of the c...

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Bibliographic Details
Published in:Materials science--Poland 2011-06, Vol.29 (2), p.152-157
Main Authors: Pasha, M. A., Fakhroueian, Z., Shafiekhani, A., Vesaghi, M. A., Farzaneh, F.
Format: Article
Language:English
Subjects:
carbon nanotubes
Chemistry and Materials Science
Materials Science
nanocomposite
Ni-Si mixed oxide
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Summary:Ni-Si mixed oxide nanocomposite was prepared by co-precipitation method with Ni(NO 3 ) 2 · 6H 2 O and tetraethylorthosilicate (TEOS) at pH = 10.5 under reflux condition for 6 days. It was then used as a catalyst for the formation of carbon nanotubes (CNTs) by CVD procedure. Characterization of the catalyst and the CNTs was carried out using X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The results showed that Ni-Si mixed oxides nanorods with the average diameter of 3 to 4 nm play a key role in CNTs formation.
ISSN:2083-124X
2083-1331
2083-134X
DOI:10.2478/s13536-011-0022-8