Abstract: The disclosure relates to modified multi-walled carbon nanotubes (MWCNTs) that include MWCNTs with carboxylate moieties (e.g., laurate moieties) covalently bonded thereto, and related methods.

Abstract: A porous carbon material which is a single porous carbon material having micropores, mesopores and macropores, wherein, with respect to a total pore volume, the volume percentage of the micropores is 13 to 74 volume %, the volume percentage of the mesopores is 13 to 75 volumes, and the volume percentage of the macropores is 5 to 74 volume %.

Abstract: A method for recovering hafnium and impurity metals from a hafnium-containing waste residue, comprises dissolving the waste residue in sulfuric acid and ammonium sulfate to obtain an acidic solution, adjusting acidity of the acidic solution, and adding a complexing agent to obtain a material solution; conducting extraction to obtain a hafnium-loaded organic phase and an impurity metal ions-containing aqueous phase; subjecting the hafnium-loaded organic phase to purification, stripping, precipitation, and filtration, and washing and burning to obtain hafnium oxide; precipitating the impurity metal ions-containing aqueous phase, washing a resulting precipitate to remove the complexing agent; dissolving a resulting precipitates of the impurity metal ions in sulfuric acid, and adjusting acidity of a resulting solution to obtain a solution of the impurity metal ions; extracting the solution of the impurity metal ions to obtain an impurity metal ions-loaded organic phase, purifying and stripping to obtain oxides of

Abstract: A reactor system can include a reactor, including: a first inlet for a first stream including a liquid sulfur including a dissolved hydrogen sulfide, a polysulfide, or a combination thereof. A second inlet can be for a second stream, wherein the second stream can be an oxygen-containing gas with no more than about 2%, by weight nitrogen. A packing can be in contact with a catalyst.

Abstract: A fullerene derivative has a structure of formula (1) or formula (2): wherein Ar is a substituted or unsubstituted aromatic ring, * is a carbon atom at the point of attachment to a fullerene core, X is O, S, Se, or Te, and R is an organic group.

Abstract: Compositions and methods directed to the synthesis and use of silicon carbide with, biomedical applications is provided. The method of synthesis includes providing a polydimethysiloxane (PDM'S) substrate, and irradiating at least a portion of the substrate with a laser under conditions sufficient to produce silicon carbide comprising 3C silicon carbide (3C-Si€). The composition can be used to modulate biological activity through electrical, chemical and heat stimuli.

Abstract: Spherical, low surface area precipitated silicas are useful as matting agents in powder coatings. Corresponding matte powder coating compositions and methods of preparing matte powder coatings containing the silicas are provided.

Abstract: A method for recycling a carbon fiber-reinforced resin including a carbon fiber and a matrix resin is provided, and the method includes: a first heating step of heating the carbon fiber-reinforced resin to decompose the matrix resin so as to obtain an intermediate in which the decomposition residue of the matrix resin is adhered to the carbon fiber; an unwinding step of unwinding an intermediate fiber from the intermediate; a second heating step of heating the unwound intermediate fiber to decompose the decomposition residue of the matrix resin adhered to the intermediate fiber so as to obtain a recycled carbon fiber; and a winding step of winding the recycled carbon fiber.

Abstract: A method for preparing carbon black according to the present invention comprises the steps of: pyrolyzing by heating waste tires; separating char in the pyrolyzed material from an iron-containing foreign substance; pulverizing the char into fine particles or fine powder to form carbon black; pelletizing the carbon black; cooling and drying the pelletized carbon black; and packaging the pelletized carbon black, wherein the pyrolyzing step comprises: a primary pyrolysis step of heating waste tires; and a secondary pyrolysis step of heating char and iron in the primary pyrolyzed material, and the heating temperature of the secondary pyrolysis step is higher than the heating temperature of the primary pyrolysis step.

Abstract: Disclosed herein is an apparatus and method for fabrication of large diameter single-walled carbon nanotube films. Advantageously, large diameter single-walled carbon nanotube films may be useful as transparent electrodes with high transparency and lower sheet resistance. In one embodiment, the method includes supplying carrier carbon monoxide and catalyst precursor through a first inlet at a temperature below the reaction temperature of the catalyst precursor; supplying heated carbon monoxide through a second inlet such that the heated carbon monoxide mixes with the carrier carbon monoxide and the catalyst an aerosol; reacting the aerosol in a reaction chamber to form a composite aerosol of single walled carbon nanotubes, metal nanoparticles, carbon monoxide, and carbon dioxide. In this embodiment, the heated carbon monoxide heats the catalyst precursor which reacts with the carbon monoxide to form carbon nanotubes.

Abstract: A method of manufacturing silicon nano-powders and a manufacturing equipment implementing such method. The method according to the invention utilizes a plurality of aluminum powders to react with a silicon tetrahalide into a plurality of silicon nano-powders and an aluminum trihalide to obtain the silicon nano-powders.

Abstract: A silver-doped, nano-porous hydroxyapatite material is provided that can be utilized to capture radioactive iodine, 129I. Methods of using the silver-doped, nano-porous hydroxyapatite material to remove radioactive iodine, and methods of manufacturing the material are also provided.

Abstract: Pitch compositions suitable for spinning may comprise: a pitch having a softening point (SP) below 400° C. and is capable of achieving a radial Hencky strain prior to break of about 0.7 to about 10, at spinning temperature (Ts) ranging from about SP?30° C. to about SP+80° C. Methods for producing a carbon fiber from a pitch composition at a temperature within a spinning temperature (Ts) range may comprise determining a temperature range wherein the maximum radial Hencky strain (?R) lies above a minimum process radial Hencky strain, and wherein the minimum process radial Hencky strain is within a range of about 0.7 to about 10. The spinning temperature (Ts) range may be determined by measuring a maximum radial Hencky strain (?R) prior to break at a series of different temperatures and strain rates. Carbon fiber composites may comprise of the said carbon fiber.

Abstract: A process for converting avocado peels into hard carbon-based anodes for sodium ion batteries and a hard carbon material formed according to that process. The avocado peels are simply washed and dried, and then carbonized using a high temperature conversion step. Electrochemical measurements confirmed the applicability of avocado-derived hard carbon as electrode active materials, with high reversible capacities of 320 mAh/g over 50 cycles at 50 mA/g, good rate performance of 86 mAh/g at 3500 mA/g, and Coulombic efficiencies above 99.9% after 500 cycles.

Abstract: Compositions, systems and methods for using zeolites to eliminate scents and odors are disclosed. The compositions and methods use a zeolite, preferably a dry flowable powder of zeolite, desiccant, and monocalcium phosphate to eliminate scent. Applications of using the compositions and systems are also disclosed, including eliminating human scents and other odors to enhance ability for a hunter, wildlife enthusiast, photographer and the like to access proximity to an animal that is otherwise deterred by scents. Other applications of use are also disclosed.

Abstract: The purpose of the present invention is to provide a catalyst support with which it is possible to produce a high-quality fibrous carbon nanostructure. The purpose of the present invention is to provide a catalyst support used when producing a fibrous carbon nanostructure, the catalyst support comprising a carrier and a catalyst layer formed on the carrier, the catalyst layer including a metal-containing compound, and the difference ?YI in yellowness expressed by the formula being 3-20, where YIA is the yellowness of the carrier, and YIB is the yellowness of the catalyst support. ?YI=YIB?YIA.

Abstract: An apparatus and method for the low temperature carbonization of a continuous tow of polymeric material fiber, such as PAN or other carbon fiber precursor materials at atmospheric pressure in an inert gas (usually nitrogen or argon) is disclosed. A pair of antennas are arranged within an electromagnetic cavity and face each other in an edgewise fashion for direct electromagnetic heating of the fiber tow as it passes between them. Supplemental background heating increases the dielectric loss of the fiber tow in order to improve absorption of electromagnetic energy and prevent arcing. The invention produces a higher density low temperature carbonized fiber in a shorter residence time compared to conventional low temperature carbonization.

Abstract: The present invention is concerned with a method of direct synthesis of co-products of at a first co-product and a second co-product. The first co-product is superhydrophilic carbon nitride thin film and the second co-product is superhydrophilic carbon nitride powder. The method has a step of using a guanidine carbonate salt as a precursor material. The present invention is also concerned with carbon nitride co-products. The carbon nitride co-products has a first co-product of superhydrophilic carbon nitride thin film and a second co-product of superhydrophilic carbon nitride powder. The superhydrophilic carbon nitride thin film has chemical formula of CNx, wherein x is 0.86-1.04, and the superhydrophilic carbon nitride powder has a chemical formula of g-C3N4.

Abstract: The present invention relates to a method for molten metal pyrolysis of a feed comprising hydrocarbons and nitrogen and/or hydrogen sulphide to produce solid carbon and one or more of liquid sulfur, hydrogen gas and ammonia gas. The molten salt layer contains two reaction zones of different temperatures, a high temperature zone for pyrolysing the hydrocarbon and a low temperature zone for pyrolysing the hydrogen sulphide and/or forming the ammonia. Liquid salt is used to separate produced solid carbon and optionally the produced liquid sulphur from the molten metal and to facilitate isolation of produced carbon. The invention further relates to a reactor for performing the method according to the invention.

Abstract: The present invention discloses a layer-number-controllable graphene derived from natural biomass and a preparation method thereof. The preparation method includes pulverizing 1-100 g of biomass to obtain a 50-to 300-mesh biomass scrap, and drying the biomass scrap at 60-100° C. to obtain a biomass precursor; mixing the biomass precursor with a Bronsted acid solution in a solid-liquid ratio of 0.1:10 to 2:100 g/mL, conducting sealing after discharging oxygen and introducing nitrogen, and then conducting heating for a reaction at 75-95° C. for 1-6 hours to obtain a graphene suspension; and conducting post-treatment on the graphene suspension to obtain a stable graphene dispersion, and then drying the stable graphene dispersion to obtain a graphene powder, where the post-treatment includes one or more of filtration washing, dialysis or ultrasonic treatment.