144 results about "High surface area" patented technology

The invention discloses a preparation method of a lithium battery composite material, in the preparation method, by optimizing insect shells and a large number of oxygen-containing functional groups on the surfaces of the insect shells, the insect shells are subjected to pretreatment, carbonization treatment and post-treatment, and the oxygen-containing functional groups still remain on the surfaces of electrodes after carbonization; the existence of the oxygen-containing functional groups is very beneficial to improving the electrochemical energy storage effect of the electrode, and after activation treatment, the electron transmission effect is enhanced by a high surface area and a conductive network, and the thermal stability of the material can be obviously improved by adhering a small amount of calcium sulfate while the conductivity is ensured. Besides, the whole process is simple, the components interact, the whole material has excellent conductivity, lithium ions are slowly released under the regulation and control of the porous material, the situation that a large amount of lithium ions move in a short time, consequently, a large amount of heat is released in the battery, the battery structure is damaged, and the service life of the battery is shortened is avoided, the capacity retention rate of the battery is increased, and the service life of the battery is prolonged. The battery service life is prolonged.

Adsorptive membranes with sponge-like structures for direct recovery of lithium from geothermal brines and recycling of water from geothermal evaporation ponds are disclosed. The membrane surfaces are functionalized with task-specific chemicals capable of selective separation of lithium through host-guest complexation mechanism. The sponge-like structure provides high surface area resulting in an enhanced lithium adsorption capacity. The technology disclosed here aims to reduce the time required for lithium enrichment by evaporative concentration of geothermal brines and address the water loss problem thereof through enhanced solar-driven recycling of water.

The invention relates to the technical field of sewage treatment, and discloses a preparation method of a porous ceramic loaded sulfur-based composite filler and application of the porous ceramic loaded sulfur-based composite filler in nitrogen and phosphorus removal of sewage. Porous ceramic is taken as a carrier, active components are loaded in a layered manner by adopting a gradient filling process, an inner-layer siderite composite gel and calcite complex dynamically neutralizes H < + > generated by sulfur autotrophy, and pH buffering is realized through sulfo group reversible proton exchange; the compressive strength of the middle-layer pyrite composite gel is improved through C-O-Fe bonding, a Pi-Pi conjugate electron pathway is constructed by polypyrrole-coated hybrid gel, electron transfer is accelerated, and Fe < 2 + > is released to precipitate phosphate; sulfur-charcoal on the outer layer forms nano sulfur crystals, and denitrification is quickly started by utilizing a high specific surface area. Sulfur consumption and sulfate accumulation are reduced through sulfur-iron oxidation-reduction circulation. The filler realizes high-efficiency nitrogen and phosphorus removal of sewage under the condition that a carbon source and a pH regulator are not required to be additionally added.

The invention relates to the technical field of porous material preparation process optimization, in particular to a porous material preparation process optimization method. The method comprises the steps of obtaining microscopic pore distribution characteristic data to generate preliminary design parameters, constructing a microstructure model to optimize pore sizes, adjusting key element distribution to generate an improved scheme, determining an optimal process parameter combination through simulation testing, detecting pore uniformity in real time and dynamically adjusting parameters. And monitoring the element utilization rate to generate a dynamic adjustment scheme and verifying the performance index to generate an optimization record. Intelligent control over preparation of the porous material can be achieved, the surface area, the pore uniformity and the key element utilization rate are remarkably increased, and reliable technical support is provided for application in the fields of catalysis, environmental protection and the like.

There is disclosed magnetic covalent organic frameworks (COFs) functionalized with Fe3O4 nanoparticles (Fe3O4@HMN-COF, Fe3O4@MAN-COF, and Fe3O4@SIN-COF) for the efficient removal and degradation of imidacloprid (IMI) from aqueous solutions. These COFs, incorporating nitrogen-rich frameworks and π-electron systems, enhance IMI adsorption through π-π interactions, hydrophobic interactions, and hydrogen bonding. The magnetic properties provided by Fe3O4 nanoparticles allow rapid separation from water using an external magnetic field. The COFs exhibit high surface areas, with BET surface areas reaching up to 910 m2 / g, and high adsorption capacities, up to 600 mg / g. The COFs also exhibit excellent stability, high surface area, and reusability, with minimal loss in performance over multiple cycles. Photocatalytic degradation of IMI is optimized under UV light, with Fe3O4@HMN-COF achieving 98.5% degradation efficiency under specific conditions. These magnetic COFs present a sustainable solution for remediating pesticide-contaminated water, demonstrating effectiveness in various real-world applications.

The application provides a gallium oxide field effect transistor device and a preparation method thereof. The device comprises a substrate, an n-type gallium oxide channel layer arranged on the substrate, a drain electrode and a source electrode arranged on the n-type gallium oxide channel layer, a gate dielectric layer arranged between the drain electrode and the source electrode, and a gate electrode arranged on the gate dielectric layer. The n-type gallium oxide channel layer comprises a first channel and at least one fin channel corresponding to a portion between the drain electrode and the source electrode. The first channel is deviated to a side of the source electrode. The fin channel is arranged between the drain electrode and the first channel. A cross section of the fin channel is in a symmetrical ladder shape pointing to the source electrode, and the number of ladders is greater than or equal to 2. A vertical projection of the gate electrode on the n-type gallium oxide channel layer covers a connecting area of the fin channel and the first channel. The application can make the gate electrode have a higher surface area and increase the threshold voltage through the fin channel structure. The size of the fin channel is reduced, the peak electric field is reduced, and the breakdown voltage of the device is improved.

High-surface area carbon nanotubes having targeted, or selective, oxidation levels and / or content on the interior and exterior of the tube walls are claimed. Such carbon nanotubes can have little to no inner tube surface oxidation, or differing amounts and / or types of oxidation between the tubes' inner and outer surfaces. Additionally, such high-surface area carbon nanotubes may have greater lengths and diameters, creating useful mechanical, electrical, and thermal properties.

The object of the present invention is polyphenylene oxide based film with crystalline nanoporous phases with surface area equal to or greater than 30 m2 / g, preferably greater than 100 m2 / g, and a procedure for the attainment thereof.

This invention belongs to the field of baicalin crystallization technology, and relates to a leaf-shaped baicalin crystal, its preparation method, and its application. The crystal has a leaf-like microstructure with a length ranging from 1 μm to 17 μm; the bulk density of the crystal is 0.1-0.2 g / mL, and the compactness is 0.2-0.4 g / mL. The leaf-shaped baicalin crystals provided by this invention are easy to compress into tablets and have a high surface area / volume ratio, which is beneficial for its adsorption and dissolution in vivo. The preparation process is simple to operate and can directionally prepare leaf-shaped baicalin crystals. The purity of the obtained leaf-shaped baicalin crystals can reach 93% or higher, significantly improving the chemical purity and forming a unique low bulk density physical property.

This invention belongs to the field of water treatment technology and discloses a high-efficiency dissolved air device based on an air flotation system, including an air flotation tank and a dissolved air tank. A dissolved air tank is installed at one end of the air flotation tank, and side covers are installed at both ends of the dissolved air tank. One end of one side cover is fixedly connected to a water inlet pipe, and a water pump is fixedly installed at one end of the water inlet pipe. This invention has a scientifically sound and reasonable structure. Through the arrangement of the dissolved air tank, water pump, suction chamber, dissolved air pipe nozzle, and dissolved air pipe, water in the water inlet pipe is sprayed into the suction chamber at high speed through the action of a micro-nano bubble generator. This has a high surface area and adsorption capacity, effectively removing suspended solids from wastewater of different concentrations. The microbubble layer intercepts and filters suspended solids in the wastewater, greatly improving the hydraulic load of the air flotation process, reducing the manufacturing cost required for the dissolved air process, thereby reducing the basic energy consumption required for the dissolved air process and ensuring the stability of the dissolved air efficiency.

Our invention is about synthesis, fabrication, assembly, packaging, testing of asymmetric flexible supercapacitors utilizing bacterial cellulose, conducting polymer, activated carbon, aqueous electrolyte, having state-of-art pseudocapacitive properties; namely, high-power, high energy and high cycle life. The high capacitive performance of these types of supercapacitors is controlled by the chemical, physical, and electrical properties of the materials used for synthesis and fabrication methods for device assembly and packaging as described here-in. Bacterial cellulose is exposed as a high surface area, fibrous nanomaterial used as a source of carbon fiber for the fabrication of high-performance supercapacitor electrodes. The use of pyrolyzed bacterial cellulose, conducting polymer materials, aqueous electrolytes, non-toxic binders such as carboxy methyl cellulose dispersed in water, device fabrication, and packaging techniques produces batch production of flexible supercapacitors with high performance characteristics.

To provide materials and methods for mitigating the effects of halide species contained in a process stream.SOLUTION: The halide-containing process stream may be contacted with an abatement material combined with a solid, porous substrate comprising an active metal oxide and a non-acidic, high surface area support. The halide species in the process stream may react with the abatement material to produce a process stream that is essentially free of neutralized halide salts and halides. The neutralized salt can be attracted to and retained on the solid porous substrate.SELECTED DRAWING: Figure 1

ZTCs are used as active material for electrodes for supercapacitors. The ZTCs are generated from CaX or NaX templates. Carbon vapor deposition is performed utilizing acetylene, ethanol, or propylene. The ZTC-zeolite composition is graphitized, cooled, and undergoes an acid wash to remove the zeolite template. The ZTC generated from the process features a high surface area, and is operable for use as an active material in a supercapacitor. The supercapacitor can also feature an H2SO4 electrolyte.

The application belongs to the technical field of electrode materials, and specifically discloses an electrode material based on ink direct writing 3D printing and a preparation method thereof. By controlling the rheological property of silver / silver chloride ink in ink direct writing, silver / silver chloride filaments of different sizes are printed. The silver / silver chloride ink in filament form is used to print silver / silver chloride rods or sheets with high surface area in a hollow shape. After degreasing and sintering at different temperatures, a silver / silver chloride reference electrode with high specific surface area and high mechanical strength is obtained. The reference electrode has higher specific surface area and mechanical strength, stronger impact and vibration resistance, lower polarization resistance, better long-term stability, higher polarization resistance of the electrode body with the same mass, minimum potential deviation under the same current, and minimum open circuit potential drift in natural seawater with certain temperature and salinity.

The present invention relates to treating malignancies such as tumors or cancers by orally administering lyophilized compositions comprising arsenic to a subject in such need. Malignancies include various hematological malignancies, such as acute myeloid leukemia (AML) including acute promyelocytic leukemia (APL), myelodysplastic syndrome (MDS), multiple myeloma (MM) and lymphomas and solid tumors including glioblastoma multiforme and breast cancer. This invention relates to a novel formulation comprising a lyophilized compositions comprising arsenic. The present invention also relates to a method for lyophilizing the arsenic trioxide, preparing the oral formulation comprising lyophilized compositions comprising arsenic, and a method for treating a subject with malignancies using the oral formulation.

To provide a fiber-reinforced hollow particle that can retain sufficient strength even upon exposure to high temperatures.SOLUTION: A fiber-reinforced hollow particle includes an outer shell portion containing an inorganic compound and inorganic nanofibers, and a hollow portion surrounded by the outer shell portion, wherein the inorganic nanofibers have an aspect ratio of 3 or more and a surface area of 500 nm2 or more.SELECTED DRAWING: None

In a first embodiment, the disclosure relates to a graphitization furnace including a raw material inlet, a product outlet, and a channel 100 connecting the raw material inlet and the product outlet. The graphitization furnace further includes an ash outlet 110 in gas communication with the channel 100, the ash outlet 110 including an ash collection chamber 120, the ash collection chamber 120 including a hatch 160, and a high surface area body 130 removablely disposed within the ash collection chamber 120, and / or a cooling means 140.

This invention discloses a method for preparing pseudoboehmite with high specific surface area and high conversion rate by sand milling and hydrolysis, belonging to the field of materials chemistry. The method involves using high-purity aluminum isopropoxide purified by vacuum distillation as a dispersant, and sand milling and stirring under specific pH, temperature, and vacuum conditions to complete the hydrolysis and aging process. Microwave drying is then employed to obtain a sample with a specific surface area >350 cm². 2 Boehmite powder with an alumina conversion rate of ≥76% per g can be used for the production of laser crystal-grade alumina and gem-grade alumina, and is also suitable for use as a catalyst support; moreover, the preparation method is simple to operate, easy to control, and easy to industrialize.

A contactor for selective carbon capture from water includes a micro- or nano-structured support and a bicarbonate-selective ligand chemically bonded to the support. The bicarbonate-selective ligand includes one or both of a guanidinium and an ammonium functional group. The support may be a high surface-area material selected from a group of hollow fibers, non-hollow fibers, solid rods, macro-particles, micro-particles, nano-particles, and membranes. A carbon capture module includes a housing defining an internal volume and a plurality of the contactors contained therein. Each contactor extends between first and second opposite longitudinal ends of the housing. A method of selectively capturing carbon from water including a salt and a carbon-containing species dissolved therein includes providing a housing including a plurality of the contactors disposed therein. The water including the dissolved carbon-containing species is fed through the housing such that the contactor adsorbs the dissolved carbon-containing species from the water.

The invention concerns a nanocomposite material for use as a high surface area heterogenous or electrocatalyst, and methods for preparing such catalysts.

Disclosed is a composition comprising: one or more isocyanate functional prepolymers; one or more catalysts for the reaction of isocyanate moieties and active hydrogen containing moieties; one or more mercapto silanes; one or more amino silanes, isocyanato silanes, or mixtures thereof; one or more reinforcing fillers comprising one or more high surface area carbon blacks; one or more untreated calcium carbonates; one or more polyisocyanates having an isocyanate functionality of about 2 or greater; and one or more linear plasticizers. Preferably, the isocyanate functional prepolymers are prepared in the presence of at least a portion of the linear plasticizers. Preferably, the isocyanate functional polymers are prepared in the presence of a malonic acid dialkyl ester. The composition can be a one-part adhesive composition. Also disclosed is a method of applying the composition to a substrate. The composition bonds to difficult to bond coatings, such as coatings prepared from compositions comprising silanized components such as silanized acryloyl polyols or coatings having silica clusters, without primer.

The application discloses a glass fiber carrier with high specific surface area and a preparation method thereof, and belongs to the technical field of formula and preparation of the glass fiber carrier. The formula of the glass fiber carrier is as follows: 50-70 parts of SiO2, 10-20 parts of Al2O3, 5-10 parts of B2O3, 5-15 parts of CaO and / or MgO, 1-5 parts of Na2O and / or K2O, 10-20 parts of a pore forming agent, 1-3 parts of a surface activation stabilizer and 1-2 parts of a mineralizer. The structure of the surface activation stabilizer is shown in the drawing, the deuterium group of which improves the thermal stability, the aromatic ring structure of which enhances the pi-pi interaction with the surface of the fiber, and the uniform nanoparticle loading sites are formed through directional arrangement. The application solves the problems of low porosity and insufficient surface activity of the traditional glass fiber carrier, and has significant application value in the fields of catalysis and adsorption.

The application provides a continuous production method and system of calcium hydroxide with high whiteness and high specific surface area, and relates to the technical field of limestone deep processing. The continuous production method comprises the following steps: step one: continuously adding quicklime particles into the inlet of a primary digester, continuously adding digestion water and an additive into the inlet of the primary digester, and carrying out premixing and pre-digestion under stirring conditions; step two: continuously introducing the discharge of the primary digester into a secondary digester, continuously adding digestion water and an additive into the inlet of the secondary digester, and stirring and digesting and aging; step three: the discharge of the secondary digester is sequentially introduced into a tertiary digester, a quaternary digester and a quinary digester for digestion and aging, and the product is obtained after grading by a grader. The method can continuously prepare calcium hydroxide with high whiteness and high specific surface area, and has the characteristics of simple process, short time consumption, remarkable effect and low energy consumption, and has been applied in actual production and has good use effect.

A cell culture matrix is provided that has a substrate with a first side, a second side opposite the first side, a thickness separating the first side and the second side, and a plurality of openings formed in the substrate and passing through the thickness of the substrate. The plurality of openings allow flow of at least one of cell culture media, cells, or cell products through the thickness of the substrate, and provides a uniform, efficient, and scalable matrix for cell seeding, proliferation, and culturing. The substrate can be formed from a woven polymer mesh material that provides a high surface area to volume ratio for cells and good fluid flow through the matrix. Bioreactor systems incorporating the cell culture matrix and related methods are also provided.

A contactor media includes continuous surface segments, wherein a first continuous surface segment has at least 50% of its surface area follow at least one of: (a) a contour of a first zero-thickness surface having a Gaussian curvature (“Gc”) of −400 mm−2≤Gc<−0.01 mm−2; and (b) a contour of a second zero-thickness surface having at least one principal curvature (ki) of −20 mm−1≤ki<−0.1 mm−1; and wherein the first continuous surface segment provides at least: (a) a total liquid hold-up of between about 1 kg / m3 to about 800 kg / m3 or (b) a static liquid hold-up of about 0.1 kg / m3 to about 800 kg / m3.

The present invention relates to an anode-free battery cell comprising a cathode, an electrolyte and an electronic conductor provided at the anode side of the battery cell, wherein the battery cell further comprises a high surface area substrate provided between the cathode and the electronic conductor, wherein at least a portion of a surface of the high surface area substrate contacts at least a portion of a surface of the electronic conductor, wherein the high surface area substrate (4) has a porosity of at least 40% as measured by X-ray computed tomography, and wherein the high surface area substrate (4) comprises an organic compound and / or an inorganic compound comprising lithium lanthanum zirconium oxide and / or a silica polymorph. The present invention further relates to an anode-free battery comprising a stack of between 2 and 20 inventive anode-free battery cells.

The present disclosure relates to a solvent-free composition, electrodes formed from said composition, cells formed from said electrode, battery systems including said cell and vehicles containing said battery system. The present disclosure also relates to methods of preparing said composition and electrode. The composition comprises cathode active material, binder and conductive additive. The conductive additive has a high surface area, such as a specific BET surface area of 50m2 / g or greater. The electrodes formed using the composition show excellent electrochemical performance and stability including long cycle life, high capacity retention, good flexibility and good adhesion.

Gels and aerogels are provided that comprise one or more polyoxometalate (POM)– complexed nanocrystal cores formed from metal oxides, metal hydroxides, and / or metal oxyhydroxides. Coordination of the nanocrystal surfaces by POM cluster anions imparts enhanced structural stability, surface accessibility, and electronic tunability relative to non- complexed materials. As a result, the POM-complexed nanocrystals exhibit improved performance in chemical, electrochemical, photochemical, and photoelectrochemical processes. Conversion of the POM–nanocrystal complexes into gel and aerogel architectures further enhances reactivity and functional versatility by providing interconnected, high-surface- area networks that retain exposed, catalytically active inorganic surfaces.

The invention belongs to the technical field of perovskite. The invention provides a functional layer for improving the stability of a perovskite thin film and a preparation method and application thereof. The functional layer comprises a novel covalent organic framework material (COFs material). The structures of the COFs materials can form fine micro / nano-scale pore diameters, and the COFs materials not only have high surface area, but also have stable non-polar vinyl bonds. In the COFs material, an azine unit of a lone electron pair is completely exposed to provide a strong hydrogen bond accepting site in a one-dimensional channel, so that the COFs material has excellent water absorption performance. The functional layer containing the COFs material can significantly reduce the erosion of water vapor to the perovskite film, and the stability of the perovskite device is greatly improved.

The invention relates to a preparation method and application of bowl-shaped polyaniline microspheres, and polyaniline microspheres with regular bowl-shaped morphology are synthesized by accurately controlling key parameters such as the oxidation degree of aniline monomers, the template size, the dosage of a polymerization initiator and the like. The bowl-shaped polyaniline microspheres are formed by self-assembly of polyaniline molecules, and the interior of each bowl-shaped polyaniline microsphere is provided with a continuous and uniformly-distributed nano-scale pore structure. Due to the unique bowl opening and bowl bottom sizes in the bowl-shaped microsphere structure, the microsphere has the characteristics of concave cavity, micron hollow hemisphere shape, nanoscale bowl wall thickness, high surface area-volume ratio and high porosity at the same time, more active sites can be provided, and the bowl-shaped microsphere structure can be used for supercapacitor electrodes, gas sensor electrodes and electromagnetic shielding materials.