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Basic CNT production

MH Mousa I. Hussein
SJ Syed S. Jehangir
IR I. J. Rajmohan
YH Y. Haik
TA Tahir Abdulrehman
QC Q. Clément
NV N. Vukadinovic
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The synthesis of the MWCNT has been carried out using the chemical vapor deposition (CVD) technique. The developed system enables the production of MWCNT, with a yield of few grams per hour, by inserting pure gas containing carbon, nitrogen and hydrogen into a quartz tube heated in an oven at a temperature of 720 °C. Metal nanoparticles such as cobalt or nickel are used as catalysts in the quartz tube to initiate the chemical reaction that allows the growth of the CNT. After the synthesis, the CNT need to be purified. The purification is done by using a patented ionic liquid based technology, developed at the United Arab Emirates University, and leads to the production of 95% pure MWCNT. The produced CNT is of inner diameter between 5–12 nm, outer diameter is 30–50 nm and the length is 10–20 µm.

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