Abstract: Provided is a method for highly efficiently producing highly pure single-walled carbon nanotubes. This method for producing carbon nanotubes by fluidized CVD includes: a step for heating a material (A) to 1200° C. or higher, in which the total mass of Al2O3 and SiO2 constitutes at least 90% of the total mass of the material (A) and the mass ratio of Al2O3/SiO2 is in the range of 1.0-2.3; and a step for bringing a gas, which is present in the environment in which the material (A) is being heated to 1200° C. or higher, into contact with a feed gas to generate carbon nanotubes.

Abstract: The electrode structure for electronic devices according to the present invention comprises a powdered electrode material, and carbon nanotubes having a volume resistivity of not more than 2×10?2 ?·cm.

Abstract: A CNT production apparatus 1 provided by the present invention includes a cylindrical chamber 10 and a control valve 60 provided to a gas discharge pipe 50. The chamber 10 includes a reaction zone provided in a partial range of the chamber 10 in the direction of the cylinder axis, a deposition zone 22 which is provided downstream of the reaction zone 20, and a deposition state detector 40 that detects a physical property value indicating a deposition state of carbon nanotubes in the deposition zone 22. The apparatus is configured to close the control valve 60 and deposit carbon nanotubes in the deposition zone 22 when the physical property value detected by the deposition state detector 40 is equal to or less than a predetermined threshold value, and configured to open the control valve 60 and recover the carbon nanotubes deposited in the deposition zone 22 when the physical property value exceeds the predetermined threshold value.

Abstract: Provided are a carbon nanotube production device and production method capable of realizing high-temperature heating of a catalyst raw material in a floating catalyst chemical vapor deposition (FCCVD) method, and improving the quality and yield of carbon nanotubes synthesized. A carbon nanotube production device 1 includes a synthesis furnace 2 for synthesizing carbon nanotubes; a catalyst raw material supplying nozzle 3 for supplying a catalyst raw material used to synthesize carbon nanotubes to the synthesis furnace 2; and a nozzle temperature adjusting unit 6 capable of setting a temperature of an inner portion 4 of the catalyst raw material supplying nozzle 3 higher than a temperature of a reaction field 5 of the synthesis furnace 2.

Abstract: There is provided a positive electrode for a lithium-ion rechargeable battery in which it is possible to achieve both exceptional electrical conductivity and adhesion of an electrode active material to a current collector and it is possible to dramatically improve battery characteristics compared to those in the related art. A positive electrode for a lithium-ion rechargeable battery includes a current collector; and an electrode active material-containing layer provided on the current collector, wherein the electrode active material-containing layer contains active material particles and a conductive material that connects the active material particles to each other; wherein the mass ratio of the active material particles:the conductive material:other components in the electrode active material-containing layer is 95 to 99.7:0.

Abstract: The electrode structure for electronic devices according to the present invention comprises a powdered electrode material, and carbon nanotubes having a volume resistivity of not more than 2×10?2 ?·cm.

Abstract: Disclosed is a method of producing a cell culture vessel (10) having a carbon nanotube (CNT) layer (14) on its surface. The method comprises the steps of providing a vessel (12) having a predetermined shape; providing a CNT dispersion of a CNT material composed primarily of CNT dispersed in a dispersion medium at a concentration of not more than 50 mg/L; and forming the carbon nanotube layer (14) on the surface of the vessel (12). The formation of the CNT layer (14) is achieved by alternately repeating a supply step of applying the CNT dispersion solution to the vessel (12) and a drying step of drying the applied dispersion solution one or more times.

Abstract: The present invention provides a carbon nanotube dispersion, in which carbon nanotubes are uniformly dispersed and a satisfactory dispersed state is maintained over a long period of time, and also inherent properties of carbon nanotubes can be exhibited. The carbon nanotube dispersion contains an alcohol solvent (preferably a lower alcohol having about 1 to 4 carbon atoms) and a polyvinyl acetal resin.

Abstract: A process and an apparatus for producing a composite material utilize a rotatable hollow body that is inclined with an upstream side being higher than a downstream side. A reaction zone is defined within an elongated chamber in the hollow body. Protrusions inwardly extend from an inner peripheral wall of the hollow body adjacent to the reaction zone. Base material is input into the chamber via a base material introduction port and a carbon source vapor is input into the chamber via a carbon source supply port. A heater heats the reaction zone to a temperature at which carbon nanotubes form on the base material from the carbon source vapor. The protrusions catch base material disposed on the inner peripheral wall of the hollow body when the hollow body rotates and then drop the base material through the reaction zone so that the base material contacts the carbon source vapor.

Abstract: A process and an apparatus for producing a composite material utilize a rotatable hollow body that is inclined with an upstream side being higher than a downstream side. A reaction zone is defined within an elongated chamber in the hollow body. Protrusions inwardly extend from an inner peripheral wall of the hollow body adjacent to the reaction zone. Base material is input into the chamber via a base material introduction port and a carbon source vapor is input into the chamber via a carbon source supply port. A heater heats the reaction zone to a temperature at which carbon nanotubes form on the base material from the carbon source vapor. The protrusions catch base material disposed on the inner peripheral wall of the hollow body when the hollow body rotates and then drop the base material through the reaction zone so that the base material contacts the carbon source vapor.

Abstract: The present invention provides a carbon nanotube dispersion, in which carbon nanotubes are uniformly dispersed and a satisfactory dispersed state is maintained over a long period of time, and also inherent properties of carbon nanotubes can be exhibited. The carbon nanotube dispersion contains an alcohol solvent (preferably a lower alcohol having about 1 to 4 carbon atoms) and a polyvinyl acetal resin.

Abstract: Disclosed is a method of producing a cell culture vessel (10) having a carbon nanotube (CNT) layer (14) on its surface. The method comprises the steps of providing a vessel (12) having a predetermined shape; providing a CNT dispersion of a CNT material composed primarily of CNT dispersed in a dispersion medium at a concentration of not more than 50 mg/L; and forming the carbon nanotube layer (14) on the surface of the vessel (12). The formation of the CNT layer (14) is achieved by alternately repeating a supply step of applying the CNT dispersion solution to the vessel (12) and a drying step of drying the applied dispersion solution one or more times.