Abstract: Embodiments of the present disclosure generally relate to processes and apparatus for carbon nanotube formation, and more specifically, to processes and apparatus for carbon nanotube alignment. In an embodiment, a process for aligning carbon nanotubes is provided. The process includes introducing an aqueous solution to a pressure-controlled system that includes a silanated glass element, a porous membrane, and a container. The process further includes applying a pressure differential across the porous membrane to draw the aqueous solution from the silanated glass element, through the porous membrane, and to the container at a flow rate to form a filtrate disposed within the container and a retentate disposed above the porous membrane, the retentate comprising carbon nanotubes. The process further includes optically detecting a position of a meniscus of the aqueous solution in the silanated glass element. Apparatus for forming and aligning carbon nanotubes are also disclosed.

Abstract: An apparatus for continuous preparation of carbon nanotubes, based on a fluidized bed reactor. The fluidized bed reactor comprises an annular varying diameter zone, a raw material gas inlet, a catalyst feeding port, a protective gas inlet, and a pulse gas controller. The annular varying diameter zone is located at a zone from a ¼ position starting from the bottom to the top. The pulse gas controller is disposed at the arc-shaped top portion of the annular varying diameter zone. The catalyst feeding port is located at the top of the fluidized bed reactor. The raw material gas inlet and the protective gas inlet are located at the bottom of the fluidized bed reactor. The device is also provided with a product outlet and a tail gas outlet.

Abstract: A carbon foam formed of carbon fibers, where, at 90% or more of any 20 locations, the carbon fibers have a fiber diameter that is within ±20% of an average fiber diameter.

Abstract: Provided herein compositions of activated graphene oxide (AGO) and activated reduced graphene oxide (ARGO) and methods of producing thereof. The AGO and ARGO provided herein exhibit high surface areas and conductivities, and the methods herein enable facile production at large scales.

Abstract: The present invention relates to a nanomaterial comprising a nanoclay having a layered structure and carbon nanotubes being intercalated between layers of the layered of the nanoclay, and manufacturing method thereof.

Abstract: The present invention relates a compact compound and their preparation and more particularly to such compact compound prepared from hydroxyl graphene functionalized and combinations with thermosetting polymer with particular particles of specified size, shape and properties. The present invention relates generally to field of nanomaterials and preparation of nanomaterials as well as use of nanomaterials in architecture, engineering and interior design.

Abstract: An object of the present invention is to provide a new form of adsorbent suitable for a motor vehicle canister. An activated carbon fiber sheet satisfies one or two or more of conditions for indices, such as a specific surface area, a pore volume of pores having a given pore diameter, and a sheet density. An embodiment, for example, may have: a specific surface area ranging from 1400 to 2200 m2/g; a pore volume ranging from 0.20 to 1.20 cm3/g for pores having pore diameters of more than 0.7 nm and 2.0 nm or less; and a sheet density ranging from 0.030 to 0.200 g/cm3.

Abstract: A carbon nanomaterial for gas storage and a method for manufacturing the same are provided. The specific surface area of the carbon nanomaterial for gas storage is greater than 2000 m2/g. The mesopore volume of the carbon nanomaterial for gas storage is greater than the micropore volume of the carbon nanomaterial for gas storage, and the carbon nanomaterial for gas storage has a peak intensity ratio (ID/IG) between G band and D band, as determined from the Raman spectrum, between 1.1 and 2. In the carbon nanomaterial for gas storage, the pore volume of pores with a pore width of 6 nm or less is bigger than that of pores with a pore width greater than 6 nm.

Abstract: The present subject matter relates to systems, devices, and methods of enhancing carbon fiber dispersion in wet-laid nonwovens. A quantity of fibers is deposited in a medium, and each of one or more stirring elements is moved in a pattern to mechanically agitate the medium. In some embodiments, moving each of the one or more stirring elements includes moving the one or more stirring elements in complementary patterns to induce a chaotic advection current within the medium.

Abstract: The present disclosure relates to a composition that includes a film having a network of randomly aligned carbon nanotubes, where the carbon nanotubes have an average diameter between about 0.6 nm and about 2.0 nm and the carbon nanotubes form bundles having an average diameter between about 3 nm and about 50 nm. In addition, the composition is characterized by a power factor ?2? between 1 ?W/mK2 and about 3500 ?W/mK2 and by ZT=?2?T/k between about 0.02 and about 2.0 over a temperature range between about 100 K and about 500 K.

Abstract: The product of and a process for forming a metal composite comprising particles of a carbon allotrope dispersed in a metal or a mixture of metals.

Abstract: This disclosure provides a nano-graphitic sponge (NGS) and methods for preparing the nano-graphitic sponge. The disclosed nano-graphitic sponge possesses many excellent properties, including large surface areas and pore volumes, low-mass densities, good electrical conductivities and mechanical properties. These excellent properties make the nano-graphitic sponge an ideal material for many applications, such as electrodes for batteries and supercapacitors, fuel cells and solar cells, catalysts and catalyst supports, and sensors.

Abstract: Provided are graphene nanosheets having a polyaromatic hydrocarbon concentration of less than about 0.7% by weight. Also provided are Graphene nanosheets having a polyaromatic hydrocarbon concentration of about 0.01% to about 0.5%.

Abstract: Provided is a method for preparing a graphene material from an industrial hemp material by laser induction, which uses a skin, a stem and/or a root of industrial hemp as a carbon precursor-containing material and reduce the carbon precursor-containing material into graphene by laser induction, so as to prepare graphene, graphene quantum dots, a graphene mesoporous material and a graphene composite material.

Abstract: The embodiments herein provide a facile four-step process for the preparation of binder-free graphene felts that are free standing and mechanically robust. The step of deagglomeration of graphene material leads to a uniform size distribution which when combined/integrated with an appropriate moulding technique allows an easy fine tuning of various attributes of graphene felts including electrical conductivity, porosity, surface area, surface morphology and surface functionalization depending on the desired application. Since graphene felts obtained from this process do not incorporate any binder, to achieve better electrical conductivity, electrochemical activity and catalytic and sensing properties compared to conventional graphene felts while not compromising with their mechanical properties.

Abstract: The present disclosure relates to a system and a method for preparing carbon nanofiber and hydrogen through continuous microwave pyrolysis. The system includes four apparatus. The melting and feeding apparatus is to heat and melt feedstocks. The microwave pyrolysis apparatus is for catalytic pyrolysis and includes a feedstock inlet, a gas outlet and a carbon outlet. The gas purification and utilization apparatus is for hydrogen purification and residual gas separation, The power generation apparatus includes a generator and a small internal combustion engine utilizing residual gas as fuel, and the generated smoke is conveyed to the melting and feeding apparatus for feedstocks melting. According to the present disclosure, a poly-generation system for co-producing high-performance carbon materials and hydrogen through plastic wastes with greatly increased energy utilization rate is formed to solve the technical problems of low product yield and high energy consumption in traditional pyrolysis.

Abstract: This disclosure relates generally to the field of carbon, graphene, energy storage materials, carbon films, and nanocomposites. Specifically, this disclosure relates to novel eco-friendly, cost-effective methods of preparing doped and/or intercalated carbon nanomaterials.

Abstract: The present invention provides a metal-carbon composite of a core-shell structure and a method of synthesizing the same. The method includes preparing a first polymer-covered glass substrate with a nano-thickness metal film deposited thereon; immersing the first polymer-covered glass substrate with the metal film to delaminate one or more 2D freestanding organic-metal nanosheets from the first polymer-covered glass substrate; transferring the one or more 2D freestanding organic-metal nanosheets onto a second target substrate; and annealing the one or more 2D freestanding organic-metal nanosheets to decompose an organic portion of the organic-metal nanosheet into an amorphous carbon-containing shell forming a metal-carbon nanocomposite of a core-shell structure.

Abstract: Systems and method for producing graphene on a substrate are described. Certain types of exemplar systems include lateral arrangements of a substrate gas scavenging environment and an annealing environment. Certain other types of exemplar systems include lateral arrangements of a graphene producing environment and a cooling environment, which cools the graphene produced on the substrate. Yet other types of exemplar systems include lateral arrangements of a localized annealing environment, localized graphene producing environment and a localized cooling environment inside the same enclosure. Certain type of exemplar methods for producing graphene on a substrate include scavenging a first portion of the substrate and preferably, contemporaneously annealing a second portion of the substrate.

Abstract: Systems comprising a carbon fiber reactor for fabricating carbon fiber, the reactor comprising a receptacle for containing a carbon-metal melt, and a plurality of nozzles through which a plurality of menisci are formed by the carbon-metal melt for contact with a carbon seed to fabricate the carbon fiber; and a heater for heating the carbon-metal melt.