The present invention addresses the problem of providing a method for producing a fibrous carbon nanohorn aggregate with higher efficiency. According to one embodiment of the present invention, a method for producing a carbon nanohorn aggregate comprising a fibrous carbon nanohorn aggregate, is provided, which includes a step (a) of fixing the end of a rod-shaped carbon target to a fixing jig, and a step (b) of irradiating the rod-shaped carbon target with a laser light, and moving the irradiation position of the laser light in the longitudinal direction of the rod-shaped carbon target without rotating the rod-shaped carbon target.

The present invention addresses the problem of providing a method for producing a fibrous carbon nanohorn aggregate with higher efficiency. According to one embodiment of the present invention, a method for producing a carbon nanohorn aggregate comprising a fibrous carbon nanohorn aggregate, is provided, which includes a step (a) of fixing the end of a rod-shaped carbon target to a fixing jig, and a step (b) of irradiating the rod-shaped carbon target with a laser light, and moving the irradiation position of the laser light in the longitudinal direction of the rod-shaped carbon target without rotating the rod-shaped carbon target.

This disclosure provides an electrophoretic display system including a first electrode disposed on a substrate and a three-dimensional (3D) carbon-based structure configured to guide a migration of electrically charged electrophoretic ink particles dispersed therein that are configured to be responsive to application of a voltage to the first electrode. The 3D carbon-based structure includes a plurality of 3D aggregates defined by a morphology of graphene nanoplatelets orthogonally fused together and cross-linked by a polymer; and, a plurality of channels interspersed throughout the 3D carbon-based structure defined by the morphology. The plurality of channels includes a plurality of inter-particle pathways and a plurality of intra-particle pathways. Each inter-particle pathway can include a smaller dimension than each inter-particle pathway. A second electrode is disposed on the 3D carbon-based structure. Each 3D aggregate can include any one or more of graphene, carbon nano-onions, carbon nanoplatelets, or carbon nanotubes.

This disclosure provides an electrophoretic display system including a first electrode disposed on a substrate and a three-dimensional (3D) carbon-based structure configured to guide a migration of electrically charged electrophoretic ink particles dispersed therein that are configured to be responsive to application of a voltage to the first electrode. The 3D carbon-based structure includes a plurality of 3D aggregates defined by a morphology of graphene nanoplatelets orthogonally fused together and cross-linked by a polymer; and, a plurality of channels interspersed throughout the 3D carbon-based structure defined by the morphology. The plurality of channels includes a plurality of inter-particle pathways and a plurality of intra-particle pathways. Each inter-particle pathway can include a smaller dimension than each inter-particle pathway. A second electrode is disposed on the 3D carbon-based structure. Each 3D aggregate can include any one or more of graphene, carbon nano-onions, carbon nanoplatelets, or carbon nanotubes.

The embodiments of the present disclosure relate to a method, system and composition producing a magnetic carbon nanomaterial product that may comprise carbon nanotubes (CNTs) at least some of which are magnetic CNTs (mCNTs). The method and apparatus employ carbon dioxide (CO.sub.2) as a reactant in an electrolysis reaction in order to make mCNTs. In some embodiments of the present disclosure, a magnetic additive component is included as a reactant in the method and as a portion of one or more components in the system or composition to facilitate a magnetic material addition process, a carbide nucleation process or both during the electrosynthesis reaction for making magnetic carbon nanomaterials.

This present invention provides a microporous carbon nanospheres, method for synthesizing and activating thereof, the method comprising: adding and mixing well deionized water, absolute ethanol, triblock copolymer, ammonia solution, resorcinol and formaldehyde solution; separating solid and liquid of the mixture solution, then drying the separated solid substrate to have a dried solid substrate; sintering the dried solid substrate surrounding by nitrogen twice and collecting microporous carbon nanospheres after cooling down. Further sintering to activate these microporous carbon nanospheres surrounding by carbon dioxide, and collecting activated microporous carbon nanospheres after cooling down. Microporous carbon nanospheres and activated microporous carbon nanospheres synthesized by this present invention have spherical structure, small size and high the specific surface area, and the process is simplified, cost-effective and environment-friendly.

This present invention provides a microporous carbon nanospheres, method for synthesizing and activating thereof, the method comprising: adding and mixing well deionized water, absolute ethanol, triblock copolymer, ammonia solution, resorcinol and formaldehyde solution; separating solid and liquid of the mixture solution, then drying the separated solid substrate to have a dried solid substrate; sintering the dried solid substrate surrounding by nitrogen twice and collecting microporous carbon nanospheres after cooling down. Further sintering to activate these microporous carbon nanospheres surrounding by carbon dioxide, and collecting activated microporous carbon nanospheres after cooling down. Microporous carbon nanospheres and activated microporous carbon nanospheres synthesized by this present invention have spherical structure, small size and high the specific surface area, and the process is simplified, cost-effective and environment-friendly.

Provided is a shortened fibrous carbon nanohorn aggregate (CNB) obtained by shortening a CNB having a length of 1 μm or more and a diameter in the short direction in the range of 30 to 100 nm, by oxidizing, stirring in an acid solution, subjecting to an ultrasonic treatment in a liquid, followed by cutting. The shortened CNB has an end surface on which no tip of the plurality of single-walled carbon nanohorns is disposed toward the longitudinal direction at least one end in the longitudinal direction, and has an excellent dispersibility by shortening the length to less than 1 μm.

Provided is a shortened fibrous carbon nanohorn aggregate (CNB) obtained by shortening a CNB having a length of 1 μm or more and a diameter in the short direction in the range of 30 to 100 nm, by oxidizing, stirring in an acid solution, subjecting to an ultrasonic treatment in a liquid, followed by cutting. The shortened CNB has an end surface on which no tip of the plurality of single-walled carbon nanohorns is disposed toward the longitudinal direction at least one end in the longitudinal direction, and has an excellent dispersibility by shortening the length to less than 1 μm.

A method of forming nanoparticles having superhydrophobicity includes preparing a PDMS film including a structure having a predetermined shape on a surface thereof, and generating the nanoparticles having superhydrophobicity on the surface of the PDMS film by combusting the surface of the PDMS film using a diffusion flame. Transparent nanoparticles having superhydrophobicity and oleophobicity may be generated simply and easily on the surface of the PDMS film.