A method for manufacturing a carbon nanotube assembled wire includes: a first step of supplying a carbon-containing gas at one, first end of a tubular carbon nanotube synthesis furnace to grow a carbon nanotube from each of a plurality of catalyst particles suspended in the carbon nanotube synthesis furnace to synthesize a plurality of carbon nanotubes; a second step of orienting the plurality of carbon nanotubes in a longitudinal direction of the carbon nanotubes in a first channel provided in the carbon nanotube synthesis furnace, and thus assembling them together, to form a carbon nanotube assembled wire; and a third step of collecting the carbon nanotube assembled wire using a collecting gas stream flowing from a second end of the carbon nanotube synthesis furnace opposite to the first end in a direction away from the carbon nanotube synthesis furnace.

Method and processes for synthesizing single-wall carbon nanotubes is 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 50 nm. The reaction temperature is selected such that it is near the eutectic point of the mixture of metal catalyst particles and carbon.

A carbon nanotube assembled wire includes a plurality of carbon nanotubes, wherein in a Raman spectrum of the carbon nanotube assembled wire, a ratio IB/IA of an integrated intensity IA in a range of a Raman shift of 120 cm.sup.1 or more and 210 cm.sup.1 or less and an integrated intensity IB in a range of a Raman shift of more than 210 cm.sup.1 and 280 cm.sup.1 or less is 0.1 or more.

Systems and a method for forming carbon nanotubes are described. A method includes forming carbon nanotubes in a reactor, using a Bosch reaction. The carbon nanotubes are separated from a reactor effluent to form a waste gas stream. The feed gas, a dry waste gas stream, or both, are heated with waste heat from the waste gas stream. The waste gas stream is chilled in an ambient temperature heat exchanger to condense water vapor, forming a dry waste gas stream.

A process of controlling the morphology of graphite in a process for the production of graphite, the process comprising: contacting at elevated temperature, a metal-containing catalyst with a hydrocarbon gas to catalytically convert at least a portion of the hydrocarbon gas to hydrogen and carbon; wherein the temperature is between 600 C. and 1000 C. and a pressure between 0 bar(g) and 100 bar(g), and wherein both the temperature and the pressure are set within predetermined value ranges to selectively synthesize graphitic material with a desired morphology.

A carbon nanotube-resin composite includes: a carbon nanotube assembled wire including a plurality of carbon nanotubes; and a resin, wherein in the carbon nanotube assembled wire, the carbon nanotubes are oriented at a degree of orientation of 0.9 or more and 1 or less.