Abstract
The influence of temperature on the growth of carbon nanotubes (CNTs) by chemical vapor deposition (CVD) using FeCl3 as a floating catalyst (FC) precursor and methane as a carbon source was studied. FeCl3 was found to be an efficient FC precursor for methane CVD into CNTs without the need of introducing hydrogen in feed. The optimum temperature for growing CNTs was 1050°C, giving off 80% yield of CNTs. The electron microscopy analysis shows that the produced CNTs possessed the average diameter of 30 nm and Raman scattering reveals the low ID/IG ratio of 0.62, indicating the presence of high graphitized structure.
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