Abstract: One aspect of the present invention relates to a porous carbon material having a nitrogen content of 0.6 to 2.0% by mass, a G band half-value width of 51 to 60 cm?1 and an R value of 1.08 to 1.40 measured in a Raman spectrum using a laser having a wavelength of 532 nm, and iodine adsorption performance of 1000 to 1500 mg/g.

Abstract: The present invention relates to activated carbon sorbents including nitrogen. In various embodiments, the present invention provides an activated carbon sorbent including a halogen- or halide-promoted activated carbon, the activated carbon sorbent particles including nitrogen in a surface layer of the sorbent particles. In various embodiments, the present invention provides a method of reducing the pollutant content in a pollutant-containing gas using the activated carbon sorbent. In various embodiments, the activated carbon sorbent can remove mercury from a mercury-containing gas that includes sulfur(VI) such as SO3 more efficiently than other sorbents.

Abstract: A continuous combustion production equipment for synthesizing ton-grade fullerenes and a synthetic process therefor. The continuous combustion production equipment is equipped with a gas supply and flow control system, a liquid supply and flow control system, a vaporization and preheating system, a combustion furnace, a combustor, a spray nozzle, an ignition system, a filter tank, a product collection system, a vacuum control system, a vacuum measuring and displaying unit and a circulation water cooling system. Opening the supply line of gas fuels, arranging the tip of a metal electrode of the ignition system near the gas fuel outlet of the combustor, opening the ignition system, igniting the gas with an electric spark to generate a flame; initiating the vacuum pump set; opening the supply line of liquid raw materials, adjusting to a suitable flux with a constant flow pump; adjusting the pressure of the system to keep it below 5000 Pa.

Abstract: Laser-induced graphene (LIG) and laser-induced graphene scrolls (LIGS) materials and, more particularly to LIGS, methods of making LIGS (such as from polyimide (PI)), laser-induced removal of LIG and LIGS, and 3D printing of LIG and LIGS using a laminated object manufacturing (LOM) process.

Abstract: A system and method that includes flowing brine containing a metal ion through a reactor that includes porous particles having metal ion imprinted polymer having selective binding sites. The system and method further include discharging the brine from the reactor, contacting the porous particles with water, and pressurizing the reactor with carbon dioxide. The carbon dioxide reacts with the adsorbed metal ions to form a metal carbonate solution, where the metal carbonate solution can then be continuously purified with ion exchange. The method can include recycling eluent from the ion exchange back into the system for re-use. The method further includes depressurizing the reactor to precipitate metal carbonate from the metal carbonate solution and discharging the metal carbonate solution from the reactor.

Abstract: The impact of post-synthesis processing in, for example, graphene oxid or reduced graphene oxide materials for supercapacitor electrodes has been analyzed. A comparative study of vacuum, freeze and critical point drying was carried out for graphene oxide or hydrothermally reduced graphene oxide demonstrating that the optimization of the specific surface area and preservation of the porous network is important to maximize its properties such as supercapacitance performance. As described below, using a supercritical fluid as the drying medium, unprecedented values of specific surface area (e.g., 364 m2 g?1) and supercapacitance (e.g., 441 F g?1) for this class of materials were achieved.

Abstract: The instant disclosure is related to the growth of carbon-based nanostructures and associated systems and products. Certain embodiments are related to carbon-based nanostructure growth using active growth materials comprising alkali metals and/or alkaline earth metals. In some embodiments, the growth of carbon-based nanostructures is performed at relatively low temperatures.

Abstract: Provided herein are graphene materials, fabrication processes, and devices with improved performance and a high throughput. In some embodiments, the present disclosure provides graphene oxide (GO) materials and methods for forming GO materials. Such methods for forming GO materials avoid the shortcomings of current forming methods, to facilitate facile, high-throughput production of GO materials.

Abstract: The present invention relates to a method for preparing a functionalized graphene. The method for preparing a functionalized graphene according to the present invention can functionalize graphene by a simple method and does not use any other substance other than graphene and a salt containing a double bond, thereby enabling functionalization of graphene while exhibiting characteristics inherent to graphene.

Abstract: The invention relates to a method for obtaining sheets of graphene, hexagonal boron nitride, molybdenum disulfide, tungsten disulfide or mixtures thereof from the powder of said materials. Said sheets consist of a set of strips, wherein said strips consist of between one and five layers. Said layers are layers of graphene, hexagonal boron nitride, molybdenum disulfide or tungsten disulfide having a monoatomic or monomolecular thickness. The invention also relates to a method for coating a surface with sheets of graphene, hexagonal boron nitride, molybdenum disulfide, tungsten disulfide or sheets of mixtures thereof.

Abstract: The invention relates to a method for preparing a material made of silicon and/or germanium nanowires, comprising the steps of: i) placing a source of silicon and/or a source of germanium in contact with a catalyst comprising a binary metal sulfide or a multinary metal sulfide, said metal(s) being selected from among Sn, In, Bi, Sb, Ga, Ti, Cu, and Zn, by means of which silicon and/or germanium nanowires are obtained, ii) optionally recovering the silicon and/or germanium nanowires obtained in step (i); the catalyst and, optionally, the source of silicon and/or the source of germanium being heated before, during and/or after being placed in contact under temperature and pressure conditions that allow the growth of the silicon and/or germanium nanowires.

Abstract: A method of producing carbon fibers includes the step of providing polyacrylonitrile precursor polymer fiber filaments. The polyacrylonitrile precursor filaments include from 87-97 mole % acrylonitrile, and less than 0.5 mole % of accelerant functional groups. The filaments are no more than 3 deniers per filament. The polyacrylonitrile precursor fiber filaments can be arranged into tows of at least 150,000 deniers per inch width. The arranged polyacrylonitrile precursor fiber tows are stabilized by heating the tows in at least one oxidation zone containing oxygen gas and maintained at a first temperature T1 while stretching the tows at least 10% to yield a stabilized precursor fiber tow. The stabilized precursor fiber tows are carbonized by passing the stabilized precursor fiber tows through a carbonization zone. Carbon fibers produced by the process are also disclosed.

Abstract: Methods of producing high purity powders of submicron particles of metal oxides are presented. The methods comprise providing or forming an alloy of a first metal with a second metal, optionally heating the alloy, subjecting the alloy to a leaching agent to remove the second metal from the alloy and to oxidize the first metal, thus forming submicron oxide particles of the first metal. Collections of high purity, high surface area, submicron particles are presented as well.

Abstract: The present invention relates to carbon nanotubes and a preparation method thereof by using PET. The carbon nanotubes of the present invention are prepared by processes of alcoholysis of PET materials, processes of washing, crushing and calcining unreacted intermediates and so on. By the preparation method of the present invention, multi-walled carbon nanotubes prepared by using waste PET have a good conductivity, and are a structure of top-down array with low aspect ratio. The method of the present invention is not only easy to implement, but also does not need a catalyst, and turns the waste PET into treasure, which solves the problem of environmental pollution caused by the increasingly serious waste PET. FIG. 9.

Abstract: A production method of low dimensional nano-material comprises steps of: introducing a layered material; adding an intercalating agent into the layered material; and exfoliating the layered material by ball-milling to form the low dimensional material. Mechanochemical approaches for low dimensional nano-material like graphene quantum dots synthesis offer a promise of new reaction pathways, and greener and more efficient syntheses, making them potential approaches for low cost production.

Abstract: Highly ordered arrays of 3D faceted nanoparticle supercrystals are formed by self-assembly with controlled nanoparticle packing and unique facet dependent optical property by using a binary solvent diffusion method. The binary diffusion results in supercrystals whose size and quality are determined by initial nanoparticle concentration and diffusion speed. The supercrystal solids display unique facet-dependent surface plasmonic and surface-enhanced Raman characteristics. The supercrystals have potential applications in areas such as optics, electronics, and sensor platforms.

Abstract: A sorbent composition such as for the removal of a contaminant species from a fluid stream, a method for manufacturing a sorbent composition and a method for the treatment of a flue gas stream to remove heavy metals such as mercury (Hg) therefrom. The sorbent composition includes a porous carbonaceous sorbent such as powdered activated carbon (PAC) and a solid particulate additive that functions as a flow-aid to enhance the pneumatic conveyance properties of the sorbent composition. The solid particulate additive may be a flake-like material, for example a phyllosilicate mineral or graphite.

Abstract: A process for producing a fabric comprising at least a graphene-based continuous or long fiber, comprising: (a) preparing a graphene dispersion having chemically functionalized graphene sheets dispersed in a fluid; (b) dispensing, depositing, and shearing at least a continuous or long filament of the graphene dispersion onto a substrate, and removing the fluid to form a continuous or long fiber comprising aligned chemically functionally graphene sheets; and (c) inducing chemical reactions between chemical functional groups attached to adjacent graphene sheets to form the graphene fiber; (d) combining the graphene fiber with a plurality of fibers, the same type as or different than the graphene fiber, to form at least one fiber yarn; and (e) combining the at least one fiber yarn and a plurality of fiber yarns, the same type as or different than the at least one fiber yarn, to form the fabric.

Abstract: The present disclosure is directed to methods for producing a single-walled carbon nanotube in a chemical vapor deposition (CVD) reactor. The methods comprise contacting liquid catalyst droplets and a carbon source in the reactor, and forming a single walled carbon nanotube at the surface of the liquid catalyst droplets.

Abstract: A method of making a thin film substrate involves exposing carbon nanostructures to a crosslinker to crosslink the carbon nanostructures. The crosslinked carbon nanostructures are recovered and disposed on a support substrate. A thin film substrate includes crosslinked carbon nanostructures on a support substrate. The crosslinked carbon nanostructures have a crosslinker between the carbon nanostructures. A method of performing surface enhanced Raman spectroscopy (SERS) on a SERS-active analyte involves providing a SERS-active analyte on such a thin film substrate, exposing the thin film substrate to Raman scattering, and detecting the SERS-active analyte.