Question

When pure graphite rod is used for synthesis of carbon nanotubes multi walled carbon nanotubes are formed why?

Answer 1

hy here is the Answer.....

• Hipco method is an arc method synthesis method carried out under high pressure and was developed at Rice University to create high quality single-walled carbon nanotubes (SWCNT) from the gas-phase reaction of iron carbonyl with high-pressure carbon monoxide gas.

Answer 2

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Iron plays a higher catalytic role in the decomposition of hydrocarbons, which leads to the increase of CNT deposition, but the graphitization degree of these CNTs descends. On the other hand, cobalt catalyst makes carbon nanotube graphitization superior, but the yield decreases...