Abstract: A method, including irradiating graphene oxide (GO) with a beam of light or radiation to form reduced graphene oxide (RGO) in a three-dimensional (3D) pattern, wherein the RGO is porous RGO with pores having sizes tuned by controlling the beam of light or radiation.

Abstract: Provided is a process for manufacturing a graphene material, the process comprising (a) injecting a rust stock into a first end of a continuous reactor having a toroidal vortex flow, wherein the first stock comprises graphite and a non-oxidizing liquid (or, alternatively, graphite, an acid, and an optional oxidizer) and the continuous flow reactor is configured to produce the toroidal vortex flow, enabling the formation of a reaction product suspension or slurry at the second end, downstream from the first end, of the continuous reactor; and (b) introducing the reaction product suspension/slurry from the second end back to enter the continuous reactor at or near the first end, allowing the reaction product suspension/slurry to form a toroidal vortex flow and move down to or near the second end to produce a graphene suspension or graphene oxide slurry. The process may further comprise repeating step (b) for at least one time.

Abstract: A process for the synthesis of transition metal chalcogenides (TMC) having formula (I). More particularly, the present work relates to a one pot single phase process for the synthesis of a TMC system having formula (I) by wet chemistry. Formula (I) is represented as Ax-By.

Abstract: This invention relates to safe immobilization and disposal of arsenic found in industrial waste streams and residues in the form of clean and compact well grown scorodite solids.

Abstract: This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines. The method can include a silica removal step, capturing lithium chloride, recovering lithium chloride, supplying lithium chloride to an electrochemical cell and producing lithium hydroxide, contacting the lithium hydroxide with carbon dioxide to produce lithium carbonate.

Abstract: A method includes preparing an alkyl-modified graphene oxide, injecting the modified graphene oxide into a well, and inhibiting acid-induced corrosion of a steel surface in the well with the modified graphene oxide. A composition includes an alkyl-modified graphene oxide having one or more alkyl functional group covalently bonded to a graphene core through an oxygen-containing linking group. A method of preparing modified graphene oxide includes mixing graphite powder with an oxidant to provide a mixture, adding the mixture to an acid solution including H2SO4, H3PO4, or a combination thereof to provide graphene oxide, and reacting the graphene oxide with an alkyl halide by nucleophilic substitution to provide the alkyl-modified graphene oxide.

Abstract: The invention provides a method for preparing graphene which method comprises the steps of: (a) forming a graphite/water mixture; and (b) introducing the graphite/water mixture into a cavitation reactor using at least two offset nozzles; a cavitation reactor for use in the method wherein the cavitation reactor has a cavitation chamber wherein the cavitation chamber has at least two offset inlet nozzles which are directed towards the centre of the cavitation chamber and at least one outlet; and graphene having a carbon content of at least about 98 wt %.

Abstract: A method of making nanosilica from glass, the method comprising: gathering glass waste; grinding the glass waste to obtain a glass powder containing nanoparticles; adding the glass powder containing the nanoparticles to a water solution comprising a dispersing agent to obtain a colloidal system containing nanoparticles; separating the nanoparticles from the colloidal system to obtain separated nanoparticles; and drying the separated nanoparticles to obtain nanosilica.

Abstract: The present disclosure provides a method for preparing patterned graphene, and the method includes using a silicon carbide base as a solid-state carbon source, decomposing the silicon carbide under the action of high temperature and catalyst, to directly grow graphene on an insulating substrate. Through a first patterned trench and a second patterned trench in an accommodating passage, the pattern of the formed graphene can be directly controlled. Therefore, the present disclosure can accurately locate the position of the patterned graphene on the insulating substrate, it does not require transferring the graphene one more time, thereby avoiding contaminating the graphene and damaging its structure, and there is no need for photo-lithography, ion etching and other processes to treat the graphene in order to obtain patterned graphene, which further avoids damages to the graphene.

Abstract: A nanocrystal-sized cerium-zirconium-aluminum mixed oxide material includes at least 20% by mass zirconium oxide; between 5% to 55% by mass cerium oxide; between 5% to 60% by mass aluminum oxide; and a total of 25% or less by mass of at least one oxide of a rare earth metal selected from the group of lanthanum, neodymium, praseodymium, or yttrium. The nanocrystal-sized cerium-zirconium-aluminum mixed oxide exhibits hierarchically ordered aggregates having a dso particle size less than 1.5 ?m, and retains at least 80% of surface area and pore volume after ageing at temperature higher than 1000° C. for at least 6 hours. The nanocrystal-sized cerium-zirconium-aluminum mixed oxide material is prepared using a co-precipitation method followed by milling the dried and calcined oxide material. The nanocrystal-sized cerium-zirconium-aluminum mixed oxide material forms a particulate filter that may be used in an exhaust system arising from a gas or diesel engine.

Abstract: Provided are a silicene quantum dots-containing siloxene thin film and a preparation method therefor, which belong to the field of fluorescent functional nanomaterials. A siloxene thin film embedded with silicene quantum dots is prepared by uniformly mixing CaSi2 with a decalcification organic solvent and a transition metal chloride catalyst in a proportion, performing acid washing, and then performing ultrasonic dispersion. The thickness of such siloxene thin film is less than 1 to 2.5 nm, the size of the silicene quantum dots is 2 to 5 nm. In addition, the siloxene thin film has strong fluorescence emission performance in a blue light region, has a pseudodirect band gap, and shows a good application prospect in the fields of photoelectricity and the like.

Abstract: The invention is directed to a catalyst, to a method for manufacturing a catalyst, to a method for manufacturing a bisphenol compound, and to the use of a catalyst. The catalyst of the invention comprises particles having a core and a shell, wherein the shell comprises an ion exchange resin covering the core at least in part and wherein the core has a density that is higher than the density of the ion exchange resin.

Abstract: The present disclosure relates to a method for chemically modifying particles of a bicarbonate salt in a co-rotating twin-screw extruder and chemically modified bicarbonate particles prepared therefrom. The present disclosure also relates to a method for controlling an amount of carbonate salt formed during chemical modification of bicarbonate salt particles.

Abstract: A molybdenum oxychloride or a tungsten oxychloride, wherein the molybdenum oxychloride or the tungsten oxychloride has a moisture content of less than 1 wt %. A method of producing a molybdenum oxychloride or a tungsten oxychloride, wherein a molybdenum oxide or a tungsten oxide as a raw material is subject to dehydration treatment at 400° C. or higher and 800° C. or less, and the raw material that underwent dehydration treatment is thereafter reacted with a chlorine gas to synthesize a molybdenum oxychloride or a tungsten oxychloride. An object of the present invention is to provide a molybdenum oxychloride or a tungsten oxychloride having a low moisture content, as well as a production method thereof.

Abstract: The present disclosure relates to composition of matter for a feedstock suitable for graphitization. In particular, the present disclosure relates to composition required for taking non-graphitizable carbon materials and producing a graphite product with preferred properties.

Abstract: Methods for removing PFAS from cationic CDP adsorbents having adsorbed PFAS are provided. The method comprises contacting a volume of the cationic CDP adsorbent with a regeneration medium and separating the cationic CDP adsorbent from the regeneration medium.

Abstract: The present disclosure relates to a process for producing chlorosilanes in a fluidized bed reactor by reacting a hydrogen chloride-containing reaction gas with a particulate contact mass containing silicon and optionally a catalyst. The chlorosilanes have the general formula HnSiCl4-n and/or HmCl6-mSi2. The reactor design is described by an index K1, the constitution of the contact mass without catalyst is described by an index K2uncat, the constitution of the contact mass with catalyst is described by an index K2cat, and the reaction conditions are described by an index K3.

Abstract: A method for preparing expanded foamed graphite film includes the following steps: Step A: impregnating a synthetic graphite film into an intercalator for an interlayer intercalation treatment to prepare an intercalated graphite film; Step B: performing a thickness-limited expansion and foaming to the intercalated graphite film obtained in Step A, with an expansion ratio y of 2-25, to obtain an expanded foamed intercalated graphite film.

Abstract: This patent disclosure includes a process that uniquely and unexpectedly results in the production of extremely high specific surface area and large pore volume carbon nanomaterial with high content of sp2 hybridized carbon-carbon in the form of nanosheets from a renewable carbonaceous raw material. The resulting nanomaterial is in particulate form or porous nanomaterial or dispersed in solvent. This process can also be used to produce carbon nanosheet on substrates or form a nanocomposite with other materials that results in exceptional properties.

Abstract: A method for transferring a carbon nanotubes aqueous phase dispersion into an organic phase dispersion includes: providing the carbon nanotubes aqueous dispersion; mixing the carbon nanotubes aqueous dispersion with a first solvent to obtain a first suspension, where the first solvent includes a hydrophilic organic solvent; mixing the first suspension with a second solvent to form two stratified phases, allow to obtain a second suspension, where the second solvent includes a hydrophobic organic solvent; mixing the second suspension with a third solvent to obtain a third suspension; and subjecting the second suspension or the third suspension to dispersion treatment to obtain a carbon nanotubes organic dispersion, thereby realizing solvent transfer of the carbon nanotubes dispersion from aqueous to organic phase. The method can transfer the carbon nanotubes aqueous dispersion into the organic dispersion, and the transfer efficiency is 70%-95%.