Methods comprising: contacting a carbon fiber seed to a carbon-metal melt, drawing the carbon fiber seed to form a carbon fiber. And, systems and apparatuses comprising: a carbon fiber reactor for fabricating carbon fiber, the reactor comprising a receptacle for containing a carbon-metal melt, and a plurality of nozzles through which a plurality of menisci are formed by the carbon-metal melt for contact with a carbon seed to fabricate the carbon fiber.

The present invention relates to a method for preparing a carbon nanotube fiber which is a continuous array of carbon nanotube. The present invention enables minimization of rotational flow inside a tube reactor and thus can facilitate enhanced tensile strength of the prepared carbon nanotube fiber.

A method for making carbon fiber film includes growing a carbon nanotube array on a surface of a growth substrate. A carbon nanotube film is pulled out from the carbon nanotube array, and pass through a reaction room. A negative voltage is applied to the carbon nanotube film. A carrier gas and a carbon source gas are supplied to the reaction room to form graphite sheets on the carbon nanotube film.

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.

There is provided a process for continuously producing carbon nanofilaments and a carbon sequestration reactor for continuously producing carbon nanofilaments. There is also provided a pyrolysis system configured to produce a pyrolysis product including fuel from a carbon-based feedstock, such waste plastics. There is also provided a pyrolysis process wherein at least a portion of the pyrolysis product is recycled as fuel for the pyrolysis system and/or as feedstock for the carbon sequestration process and reactor. At least a portion of the products of the carbon sequestration process and reactor can be fed into a plasma reactor to produce hydrogen and carbon black and/or graphene.

The present invention relates to carbon materials comprising carbon nanotubes, powders comprising carbon nanotubes and methods of making carbon nanotubes. In the methods of the present invention, the size and/or formation of floating catalyst particles is closely controlled. The resulting carbon nanotubes typically exhibit armchair chirality and typically have metallic properties. The carbon nanotubes produced by this method readily form bulk materials, which typically have a conductivity of at least 0.7?10.sup.6 Sm.sup.?1 in at least one direction. The invention has particular application to the manufacture of components such as electrical conductors. Suitable electrical conductors include wires (e.g. for electrical motors) and cables (e.g. for transmitting electrical power).

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 synthesise graphitic material with a desired morphology.

The present invention relates to carbon materials comprising carbon nanotubes, powders comprising carbon nanotubes and methods of making carbon nanotubes. In the methods of the present invention, the size and/or formation of floating catalyst particles is closely controlled. The resulting carbon nanotubes typically exhibit armchair chirality and typically have metallic properties. The carbon nanotubes produced by this method readily form bulk materials, which typically have a conductivity of at least 0.7?106 Sm1 in at least one direction. The invention has particular application to the manufacture of components such as electrical conductors. Suitable electrical conductors include wires (e.g. for electrical motors) and cables (e.g. for transmitting electrical power).

In embodiments of this disclosure, a rotating media fluidized bed reactor for the decomposition of a gaseous hydrocarbon into nanofibers and other carbonaceous materials and hydrogen having a stationary or rotating distributor comprises a substantially hollow gas impermeable structure in fluid communication with one or more peripheral gas distributors to create a slip velocity vortex of reactant gas flow around the gas impermeable structure.

As a method for manufacturing a carbon nanotube assembled wire, that is capable of manufacturing the carbon nanotube assembled wire in a tubular carbon nanotube synthesis furnace efficiently, an adhesion suppressing gas stream is generated from an adhesion suppressing gas discharge port located between a second end of the carbon nanotube synthesis furnace and an end of a heater closer to the second end, the adhesion suppressing gas stream flowing between an internal wall of the carbon nanotube synthesis furnace and an external wall of a first channel, in which carbon nanotubes are oriented to form the carbon nanotube assembled wire, in a direction from the second end toward a first end to suppress adhesion of a plurality of carbon nanotubes to the internal wall of the carbon nanotube synthesis furnace.