The present disclosure relates to a method for preparing a porous carbon material including: (1) a step of centrifugally milling a porous carbon material; and (2) a step of filtering the centrifugally milled porous carbon material through a sieve, wherein a mesh size of the sieve is 2.8 to 4 times of a D.sub.50 particle size of the porous carbon material filtered through the sieve in the step (2). The present disclosure also relates to a porous carbon material prepared by the above-described method, a sulfur-carbon composite and a lithium-sulfur battery including the porous carbon material prepared by the above-described method.

The present disclosure relates to a method for preparing a porous carbon material including: (1) a step of centrifugally milling a porous carbon material; and (2) a step of filtering the centrifugally milled porous carbon material through a sieve, wherein a mesh size of the sieve is 2.8 to 4 times of a D.sub.50 particle size of the porous carbon material filtered through the sieve in the step (2). The present disclosure also relates to a porous carbon material prepared by the above-described method, a sulfur-carbon composite and a lithium-sulfur battery including the porous carbon material prepared by the above-described method.

The present invention provides a method for manufacturing a dopant composition-nanomaterial composite, which method makes it possible to simply and efficiently change a Seebeck coefficient value of a nanomaterial. This manufacture method of the present invention includes the step of putting a dopant composition in contact with a nanomaterial in a solvent, the dopant composition containing an anion, a cation, and a scavenger.

The present invention provides a method for manufacturing a dopant composition-nanomaterial composite, which method makes it possible to simply and efficiently change a Seebeck coefficient value of a nanomaterial. This manufacture method of the present invention includes the step of putting a dopant composition in contact with a nanomaterial in a solvent, the dopant composition containing an anion, a cation, and a scavenger.

Disclosed are methods for decapping single wall carbon nanotubes and purifying the decapped single wall carbon nanotubes. The disclosed methods include the steps of oxidizing the single wall carbon nanotubes to remove the terminal end cap and subsequently acid washing the single wall carbon nanotubes to remove the catalyst particles. The resulting carbon nanotubes have improved BET surface area and pore volume.

Disclosed are methods for decapping single wall carbon nanotubes and purifying the decapped single wall carbon nanotubes. The disclosed methods include the steps of oxidizing the single wall carbon nanotubes to remove the terminal end cap and subsequently acid washing the single wall carbon nanotubes to remove the catalyst particles. The resulting carbon nanotubes have improved BET surface area and pore volume.

Discrete, individualized carbon nanotubes having targeted, or selective, oxidation levels and/or content on the interior and exterior of the tube walls are claimed. Such carbon nanotubes can have little to no inner tube surface oxidation, or differing amounts and/or types of oxidation between the tubes' inner and outer surfaces. These new discrete carbon nanotubes are useful in plasticizers, which can then be used as an additive in compounding and formulation of elastomeric, thermoplastic and thermoset composite for improvement of mechanical, electrical and thermal properties.

Stem cell, bone and nerve scaffolding comprising discrete carbon nanotubes is disclosed. The discrete carbon nanotubes may be have targeted, or selective oxidation levels and/or content on the interior and exterior of the tube walls. The described scaffolding may be used to guide, target and protect stem cells upon injection into the body.

Stem cell, bone and nerve scaffolding comprising discrete carbon nanotubes is disclosed. The discrete carbon nanotubes may be have targeted, or selective oxidation levels and/or content on the interior and exterior of the tube walls. The described scaffolding may be used to guide, target and protect stem cells upon injection into the body.

Discrete, individualized carbon nanotubes having targeted, or selective, oxidation levels and/or content on the interior and exterior of the tube walls are claimed. Such carbon nanotubes can have little to no inner tube surface oxidation, or differing amounts and/or types of oxidation between the tubes' inner and outer surfaces. These new discrete carbon nanotubes are useful in electromagnetic and radio frequency shielding applications, especially where the shielding is essentially constant over a relatively wide range of frequencies. Additives such as plasticizers, can be used in compounding and formulation of elastomeric, thermoplastic and thermoset composite for improvement of mechanical, electrical and thermal properties.