Methods for growing long carbon single-walled nanotubes

Details Methods for growing long carbon single-walled nanotubes Methods for growing long carbon single-walled nanotubes

2011-01-18

2011-01-18

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C423S447100

Reexamination Certificate

active

07871591

ABSTRACT:
Methods and processes for synthesizing single-wall carbon nanotubes are provided. A carbon precursor gas is contacted with metal catalysts deposited on a support material. The metal catalysts are preferably nanoparticles having diameters less than about 3 nm. The reaction temperature is selected such that it is near the eutectic point of the mixture of metal catalyst particles and carbon. Further, the rate at which hydrocarbons are fed into the reactor is equivalent to the rate of formation of carbon SWNTs for given synthesis temperature. The methods produce carbon single-walled nanotubes having longer lengths.

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