Abstract: A method for manufacturing carbon nanotubes according to embodiments of the present disclosure includes injecting a carbon source, a metal catalyst, a cocatalyst and a transport gas into a reactor, and heating the reactor to manufacture carbon nanotubes. A ratio of a molar flow rate of the carbon source to a molar flow rate of the metal catalyst is 350 to 1,300.

Abstract: A carbon nanotube production system according to the present disclosure includes a reactor configured to generate a carbon nanotube fluid in a first direction; a conveyor unit which is arranged spaced apart from the reactor in the first direction, and comprises a mesh belt configured to capture carbon nanotube structures from the carbon nanotube fluid while continuously traveling in a second direction perpendicular to the first direction; and a collection unit configured to collect carbon nanotube units from the carbon nanotube structures.

Abstract: A catalyst electrode including a metal layer and a catalyst layer formed on the metal layer is provided. The catalyst layer includes iridium and palladium. A membrane electrode assembly and a method for manufacturing a catalyst electrode are also provided.

Abstract: A catalyst electrode including a metal layer and a catalyst layer formed on the metal layer is provided. The catalyst layer includes silver and iridium. A membrane electrode assembly and a method for manufacturing a catalyst electrode are also provided.

Abstract: Disclosed are an electrochemical hybrid catalyst that has a configuration in which two species of single atomic metals, that is, nickel (Ni) and iron (Fe), each bonded to (coordinated with) nitrogen in a nitrogen-doped carbon nanostructure, are adjacent to each other and are indirectly linked via nitrogen to form a catalyst site or an active site and thus exhibits high carbon monoxide selectivity and current density at a low overpotential during reduction reaction for converting carbon dioxide into carbon monoxide, and a carbon dioxide conversion system using the same.

Abstract: A conductive material dispersion, an electrode slurry and a lithium secondary battery, where the conductive material dispersion includes a conductive material including carbon nanotubes, a hydrogenated nitrile-based copolymer, a multivalent amine-based compound, and a solvent, the electrode slurry includes the conductive material dispersion, and the lithium secondary battery includes an electrode active material layer formed from the electrode slurry. An amine value of the conductive material dispersion is 5 mgKOH/g to 30 mgKOH/g.