59results about How to "High surface area" patented technology

A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both.

Elastomer composite blends are produced by novel wet/dry mixing methods and apparatus. In the wet mixing step or stage, fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end. Highly efficient and effective elastomer coagulation is achieved without the need for a coagulation step involving exposure to acid or salt solution or the like. Novel elastomer composites are produced. Such novel elastomer composites may be cured or uncured, and combine material properties, such as choice of filler, elastomer, level of filler loading, and macro-dispersion, not previously achieved. The coagulum produced by such wet mixing step, with or without intermediate processing steps, is then mixed with additional elastomer in a dry mixing step or stage to form elastomer composite blends. The additional elastomer to the coagulum may be the same as or different from the elastomer(s) used in the wet mixing step.

Embodiments of the present invention generally relate to methods and apparatus for forming an energy storage device. More particularly, embodiments described herein relate to methods of forming electric batteries and electrochemical capacitors. In one embodiment a method of forming a high surface area electrode for use in an energy storage device is provided. The method comprises forming an amorphous silicon layer on a current collector having a conductive surface, immersing the amorphous silicon layer in an electrolytic solution to form a series of interconnected pores in the amorphous silicon layer, and forming carbon nanotubes within the series of interconnected pores of the amorphous silicon layer.

A coalescence media for separation of water-hydrocarbon emulsions comprises an emulsion-contacting sheet formed of: (a) at least one component of the group consisting of natural fibers, cellulose fibers, natural-based fibers, and cellulose-based fibers, at least one component of the group consisting of high-surface-area fibrillated fibers, surface-area-enhancing synthetic material, glass microfibers, and nanoceramic functionalized fibers; and (c) at least one component of the group consisting of a dry strength additive, and a wet strength additive, wherein the fibrous components of the media constitute at least about 70% of the media. In preferred embodiments, the coalescence media comprises kraft fibers, fibrillated lyocell fibers, glass microfibers or nanoceramic functionalized fibers, a wet strength additive, and a dry strength additive. Preferably, the coalescence media is formed as a single, self- supporting layer from a wet-laid process using a homogenously distributed, wet-laid furnish. It may also be formed as a multi-layer structure.

A method of producing an elastomer composite. The method includes A) combining a first fluid comprising elastomer latex with a second fluid comprising particulate filler; B) causing the elastomer latex to coagulate, thereby forming masterbatch crumb; C) bringing the masterbatch crumb to a water content of about 1 weight percent to about 20 weight percent, thereby forming a dewatered coagulum; D) removing water from the dewatered coagulum by subjecting the dewatered coagulum to mechanical energy, thereby causing the dewatered coagulum to heat as a result of friction, while allowing the dewatered coagulum to achieve a temperature of about 130° C. to about 190° C., wherein water content is reduced to about 0.5% to about 3% and wherein substantially all of the decrease in water content is accomplished by evaporation, thereby producing a masticated masterbatch; and E) subjecting the masticated masterbatch to at least an additional 0.3 MJ/kg of mechanical energy while further reducing the water content.

The invention discloses silicon carbide foamed ceramics which comprises the following raw materials in parts by weight: 80-95 parts of silicon carbide micro powder particles, 5-20 parts of polycarbosilane powder and 40-170 parts of organic solvent. A template of the silicon carbide foamed ceramics is made of polymeric sponge. According to the invention, by using the characteristic that the polycarbosilane can be dissolved in the organic solvent, the polycarbosilane and ceramic powder are made into organic solvent slurry, polyurethane foam is dipped in the organic solvent slurry through adopting a powder sintering process principle, and thermally oxidized so that the yield of polycarbosilane ceramics is increased, the silicon carbide foamed ceramics is prepared through sintering under an inert atmosphere. A preparation method has the advantages of low sintering temperature, high efficiency and high production purity, and effectively avoids the difficulties of complex procedures, too many introduced impurities and high sintering temperature of the traditional preparation method for preparing the silicon carbide foamed ceramics.

A method and apparatus for making a metallic nanofiber structure are disclosed. The method includes the steps of: providing a first solution including a first material and a second material, wherein the second material includes at least one metal; forming the first solution into composite fibers including the first material and the second material; and removing the first material from the composite fibers under conditions effective to produce a metallic nanofiber structure that includes a plurality of metallic nanofibers. Also disclosed are metallic nanofiber structures prepared according to a process of the present invention, which can be used as fuel cell catalysts. Fuel cells containing electrodes that include these metallic nanofiber structures are also disclosed.

An implantable electrode and method for manufacturing the electrode wherein the electrode has a strong, adherent surface coating of iridium oxide or titanium nitride on a platinum surface, which demonstrates an increase in surface area of at least five times when compared to smooth platinum of the same geometry. The iridium oxide coating may be formed on platinum by a physical deposition process, such as sputtering. The process of electroplating the iridium oxide surface coating is accomplished by voltage control processes. A gradient coating of iridium oxide ranging in composition from essentially pure platinum to essentially pure iridium oxide is produced by sputtering.

The present invention includes a portable Sub-Surface Flow Constructed Wetlands system for removing pollutants from a body of water. The portable wetlands system includes a sealed container having pipes for the inflow and outlet of the water. The system also includes a high surface area substrate located in a lower portion of the container and a heavier substrate and at least one emergent aquatic plant located in an upper portion of the container. The container of the system may be mounted on a trailer and the entire system may be light enough to be capable of being towed by a normal mid-sized pickup truck. The present invention also contemplates a method for removing pollutants from water using such a portable wetlands system. The water to be treated is flowed through the portable wetlands system in order to remove pollutants. The present invention further contemplates a method for constructing such a portable wetlands system.

A system and method for improved atomic layer deposition. The system includes a top showerhead plate, a substrate and a bottom showerhead plate. The substrate includes a porous microchannel plate and a substrate holder is positioned in the system to insure flow-through of the gas precursor.

A flameless cooking apparatus for use with liquid fuels and for indoor or outdoor use under field operations. The burner exhibits low CO and hydrocarbon emissions and meets standards for burner thermal efficiency when used with JP-8 fuel. The apparatus employs a catalytic burner having among its parts (i) a combustion catalyst; (ii) a conductive surface, e.g., cooking surface; and (iii) in between the catalyst and the conductive surface and in direct physical contact with both surfaces, a heat spreader for conductively transferring heat of combustion from the catalyst to the conductive surface. Also claimed are a method of heat flux and a method of cooking.

A method of manufacturing trenched electrochemical double layer capacitors is provided. One aspect of the method employs state-of-the art processes used in semi-conductor wafer manufacturing such as photolithography etching for creating trenches in the electrodes of the double layer capacitor. Another aspect of the method employs a die-saw process, which is scalable and low-cost. The trenched super/ultra capacitors made by the disclosed methods have the combined advantage of higher energy storage capacity than conventional planar super/ultra capacitors due to the increased surface area and higher power density than commonly used Li-ion batteries due to the faster charging time and higher instantaneous energy burst power. The manufacturing processes also have the advantage of better manufacturability, scalability and reduced manufacturing cost.

The present invention relates to thermally stable, high surface area alumina supports and a method of preparing such supports with at least one modifying agent. The method includes adding an aluminum modifying agent to the alumina prior to calcining. The inventive support has thermal stability at temperatures above 800° C. A more specific embodiment of the invention is a catalyst having a high surface area, thermally stable alumina support with at least one group VIII metal or rhenium and an optional promoter loaded onto the support. The present invention further relates to gas-to-liquids conversion processes, more specifically for producing C₅₊ hydrocarbons.

The invention provides a novel hydrocracking catalyst special for coal tar and a preparation method and an application method thereof aiming at the problems of the conventional coal tar hydrocracking catalyst. The hydrocracking catalyst consists of active ingredients, an aid and a carrier, wherein the active ingredients of the hydrocracking catalyst consist of WO3 and NiO, the aid is ReO, and the carrier consists of activated alumina, zeolite and BaO; and the active ingredients and the aid respectively account for 14 to 34 percent and 0.4 to 1.2 percent of the total mass of the catalyst based on an oxide form. The method for preparing the catalyst comprises the following steps of: preparing the carrier, pretreating the carrier, impregnating, performing catalyst post-treatment and the like; and the catalyst preparation conditions are strictly controlled by introducing novel ultrasonic impregnation technology. Compared with the prior art, the catalyst is excellent in surface physicochemical properties, has good aromatic hydrocarbon saturated activity and proper cracking activity, and excellent high-temperature resistance and compression resistance, and effectively improves the quality and yield of hydrotreated product oil.

A nanowire super-capacitor electrode for storing electrical energy. The electrode is formed by anodizing a porous membrane having a uniform pore size and diameter, depositing a metal layer on the membrane back, electroplate metal through the pores of the membrane, dissolving the porous membrane. The formed nanowire electrode is placed in an electrolyte to integrate said nanowire into an electrolytic capacitor.

The invention discloses a reversible selective adsorption carbon dioxide material as supported ionic liquid, and a preparation method thereof. The material is supported ionic liquid on honeycomb ceramics; the mass percentage content of the supported ionic liquid is 5 to 45 percent; and the material is prepared by an impregnation method. The material has broad application prospects in the fields of adsorbing and recovering CO2 in fuel gas, flue gas and industrial exhaust gas, adsorbing CO2 in aerospace, spacecrafts, space capsules, submarines, bomb shelters, high-precision technical closed rooms and other closed systems, and the like.

It is an object of the present invention to provide a porous body containing an oxide semiconductor in which more efficient photocatalytic reactions and photoelectrode reactions occur. The present invention relates to a porous body having a network structure skeleton wherein 1) the aforementioned skeleton is composed of an inner part and a surface part, 2) the aforementioned inner part is substantially made of carbon material, and 3) all or part of the aforementioned surface part is an oxide semiconductor, and to a manufacturing method therefor.

The present invention relates to a method for preparing nanoporous carbons with enhanced mechanical strength and the nanoporous carbons prepared by the method, and more specifically, to a method for preparing a nanoporous carbon, comprising the steps of (i) synthesizing a mesoporous silica template not being subjected to any calcination process; (ii) incorporating a mixture of a monomer for addition polymerization and initiator, or a mixture of a monomer for condensation polymerization and acid catalyst into the as-synthesized mesoporous silica template, and reacting the mixture to obtain a polymer-silica composite; and (iii) carbonizing the polymer-silica composite at a high temperature to obtain a carbon-silica composite, from which the silica template is then removed using a solvent.

According to the preparation method of the present invention, the nanoporous carbons having uniform size of mesopores, high surface area and high mechanical stability can be prepared at low preparation cost through a simplified preparation process. Therefore, the nanoporous carbons of the present invention can be used as catalysts, catalyst supports, separating agents, hydrogen reserving materials, adsorbents, membranes and membrane fillers in various application fields.

In one embodiment, a hydrogen storage system includes a core of hydrogen sorbent material and a shell of crystalline metal hydride material enclosing at least a portion of the core of hydrogen sorbent material. In another embodiment, the hydrogen storage system further includes an intermediate layer of amorphous metal hydride material, at least a portion of which being positioned between the core of hydrogen sorbent material and the shell of crystalline metal hydride material.

Carbon-carbon composite brake discs are manufactured by processes that include the use of PAN or pitch fibers and their combinations, combined with pitch, resin, or CVD/CVI matrix carbons. An additional process step is provided, in which a controlled amount of a carbon additive, such as carbon black and/or activated carbon, is infiltrated in to the bulk porosity of the composite prior to one or more of the densification cycles. Typical methods of infiltration include use of a solution or suspension of the powdered carbon in water or solvent solution so as to uniformly distribute the particulates throughout porosity within the carbon fiber preform prior to one or more of the densification cycles. The presence of the activated carbon and/or carbon black additive, distributed throughout the carbon-carbon composite brake disc, facilitates the adsorption and retention of available moisture in the composite. In use, the moisture is released into friction films which form on the composite brake discs, so that their lubricating properties are obtained, for instance during cold taxi stops, thereby lowering wear rates.

Disclosed herein is a method for producing a zeolite, zeolite-like or zeotype structure with selective formation of metal, metal oxide or metal sulphide nanoparticles and/or clusters inside the zeolite, zeolite-like or zeotype structure.

A nitrogen containing niobium powder is disclosed as well as electrolytic capacitors formed from the niobium powders. Methods to reduce DC leakage in a niobium anode are also disclosed.

The current invention relates to the preparation of an improved cathode active material for non-aqueous lithium electrochemical cell. In particular, the cathode active material comprised ε-phase silver vanadium oxide prepared by using silver- and vanadium-containing starting materials in a stoichiometric molar proportion to give a Ag:V ratio of about 1:2. The reactants are homogenized and then added to an aqueous solution followed by heating in a pressurized vessel. The resulting ε-phase SVO possesses a higher surface area than ε-phase SVO produced by other prior art techniques. Consequently, the ε-phase SVO material provides an advantage in greater discharge capacity in pulse dischargeable cells.

Embodiments of the present invention provide a dry powder composition comprising porous carrier particles associated with one, two, three or more micronized drugs or APIs wherein an ordered mixture between the micronized drug or drugs and the carrier particle results, such that the micronized drug or drugs adhere strongly to the carrier particles forming a stable ordered mixture of respirable agglomerates. Embodiments of the present invention further comprise a spray-drying process to create the respirable agglomerates. Embodiments of the present invention further relate to the use of the dry powder formulation comprising respirable agglomerates for the treatment of a patient having a disease or condition which is treatable thereby.

The present invention relates to a method for preparing boehmite and γ-alumina with high surface area, and more particularly, to a method comprising hydrolysis of aluminum alkoxides to produce boehmite and calcination to produce γ-alumina, wherein an alcohol is used as a reaction solvent and a small amount of water and a particular organic carboxylic acid are added so that not only the reaction solvent is easily recovered and energy required for drying is significantly reduced but also it provides boehmite having nano-sized particles, high surface area, and high purity. Further, the prepared γ-alumina may be suitable for high value added industrial applications such as manufacture of adsorbents, catalysts, catalyst supports and chromatography materials.

The invention provides a method for preparing a metal single-atom catalyst. The method comprises the following steps: a metal-organic framework material having a bipyridyl group is selected, a metal salt precursor is coordinated to the bipyridyl group by a post-treatment modification process, and the coordinated metal-organic framework material is carbonized and acid-etched in an inert atmosphereto obtain the metal single-atom catalyst. The method has the advantages of simplicity, easiness in implementation, universality, avoiding of formation of the impure phase, avoiding of the aggregationof metal atoms, and good application prospect.

Stand-alone multiple gas analysis apparatus, of relatively small physical size, integrates one or more supplemental sensors, such as a self-heating, amperometric, limiting current-type oxygen sensor and/or a titania nanotube-type hydrogen sensor, into the sampling cell gas flow components of an FT-IR gas analyzer. The apparatus enables simultaneous quantitative concentration measurements of infrared-active gases and of infrared-inactive atomic species and homonuclear diatomic molecules, such as of oxygen and hydrogen.

A core-shell magnetic composite is disclosed, which includes: a magnetic core; a shell containing a protective layer and a porous layer, wherein the protective layer is coated on a surface of the magnetic core and the porous layer is the outmost layer of the shell; and a hydrophobic functional group grafted to the shell. In addition, the core-shell magnetic composite can be bound to a lipase to act as a transesterification catalyst. The present invention also relates to a method for producing biodiesel.

The invention discloses a Ni/NiFe2O4 lithium ion battery anode material synthesized by a bimetallic MOF precursor and a preparation method thereof. The Ni/NiFe2O4 electrode material is composed of elementary substance Ni and NiFe2O4. The preparation method is characterized by constructing a Ni-Fe-MOFs precursor by using soluble nickel salt and iron salt as main raw materials, by using amino terephthalic acid as a ligand, and by using a solvothermal method; and further drying and calcinating the Ni-Fe-MOFs precursor to obtain the Ni/NiFe2O4 electrode material. The Ni/NiFe2O4 synthesized by themethod of the invention has a uniform shape and size of about 200-400 nm, has dispersed Ni and NiFe2O4, a high specific surface area, a high porosity, and a good electron conductivity, can provide a good transmission channel for lithium ions, and thus exhibits excellent structural stability, cycle performance and rate performance as the lithium ion battery anode material. The method of the invention is simple in process, low in equipment requirements and low in cost. The obtained Ni/NiFe2O4 lithium ion battery anode material has a good application prospect.

The invention discloses a nano fiber artificial blood vessel for catalyzing and releasing nitric oxide and a preparation method. The artificial blood vessel consists of a three-dimensional reticular non-woven film pipe structure formed by an inner layer and an outer layer of nano fibers. The artificial blood vessel is prepared by the following method comprising the following steps of: dissolving gelatin in glacial acetic acid to prepare a solution; adding a sodium heparin aqueous solution to prepare a spinning dope for electrostatic spinning to form nano fiber non-woven film pipes; dissolving polyurethane and nantokite chelate in a mixed solution of tetrahydrofuran and N,N-dimethyl fomamide to prepare a polyurethane spinning dope; carrying out electrostatic spinning to continue collecting polyurethane fibers on a collecting roller with the nano fiber non-woven film pipes so as to form polyurethane fiber non-woven film pipes; and soaking and treating the polyurethane fiber non-woven film pipes in an aqueous solution of a crosslinking agent. The artificial blood vessel can catalyze and release nitric oxide for a long time in vivo and in vitro and is beneficial to inhibiting the aggregation of platelets. The preparation method is simple, and the crosslinking degree is easy to control.