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.

The present invention relates to a surface-decorated flexible graphene self-heating gas sensor, which has a pattern of graphene formed on a flexible substrate, has a part of the pattern of graphene decorated with metal nanoparticles, and detects a gas by applying an external voltage.

The present disclosure relates to a graphene composite and a method of manufacturing the same, and a graphene composite according to an exemplary embodiment includes: a substrate; a first thin film positioned on the substrate; and a second thin film positioned on the first thin film, in which the first thin film includes graphene, and the second thin film includes at least any one of VSe.sub.2, VS.sub.2, VTe.sub.2, TaS.sub.2, TaSe.sub.2, NbS.sub.2, NbSe.sub.2, TiS.sub.2, TiSe.sub.2, TiTe.sub.2, ReS.sub.2, and ReSe.sub.2.

A method for graphene functionalization that preserves electronic properties and enables nanoparticles deposition comprising providing graphene, functionalizing the graphene via non-covalent or covalent functionalization, rinsing the graphene, drying the graphene, and forming functionalized graphene wherein the functionalized graphene preserves electronic properties and enables nanoparticles deposition. A functionalized graphene wherein the graphene functionalization preserves electronic properties and enables nanoparticles deposition.

A method of producing a multi-layered functionalised graphene oxide paper, comprises the steps of providing an aqueous suspension of oxidised graphene oxide flakes, size reducing the oxidised graphene oxide flakes in the suspension to provide an aqueous suspension of particulate oxidised graphene oxide having an average particle size of less than 1 μm and drying the aqueous suspension in a vessel to provide a multi-layered graphene oxide material. The multi-layered graphene oxide material is annealed to provide a multi-layered reduced graphene oxide material, before surface grafting functional groups to the surface of the multi-layered reduced graphene oxide material by reacting the material with a functional group precursor in the presence of plasma. The use of a graphene oxide material to treat bone defects, and as an energy storage device, is also described.

Provided are a carbon-silicon three-dimensional structural composite material and a preparation method thereof. The preparation method includes: dissolving graphene quantum dots in ultrapure water, dropwise adding a CuCl.sub.2 or ZnCl.sub.2 solution, and performing oscillation to generate a mixed emulsifier; mixing the mixed emulsifier with a graphite oxide aqueous solution and a cyclohexane solution containing nanosilicon spheres, and performing homogenization to form a uniform oil-in-water emulsion; adding hydrazine hydrate into the obtained emulsion for reduction, and performing a hydrothermal reaction to obtain a reduced emulsion; and freeze-drying the reduced emulsion, performing washing with a washing liquid, and performing vacuum drying to obtain a carbon-silicon three-dimensional structural composite material.

Provided is a sulfur-carbon material composite body which, when used for an electrode of a secondary battery, is unlikely to degrade cycle characteristics at the time of charging and discharging of the secondary battery. Disclosed is a sulfur-carbon material composite body including a first carbon material having a graphene layered structure; a spacer at least partially disposed between graphene layers of the first carbon material or at an end of the first carbon material; and sulfur or a sulfur-containing compound at least partially disposed between the graphene layers of the first carbon material or at the end of the first carbon material.

A process to produce graphene dual doped with nitrogen and sulfur atoms through a reduction of graphene oxide by microorganisms. Also, graphene dual doped with nitrogen and sulfur atoms obtainable by this process, and the use of the doped graphene to produce e.g. electronic components or water purification equipment. The process is eco-sustainable and economic with the additional advantage of providing a product with significantly improved performance compared to known products.

A light-modulating material of which the light transmittance can be controlled over a wide region from visible light to infrared light by voltage application is provided. The light-modulating material comprises a graphene-like carbon material having an aspect ratio of 3 or more and 330 or less.