217 results about "High surface area" patented technology

Iridium-based catalysts and methods of making the catalysts are described. The catalyst comprises a catalyst material comprising particles comprising iridium or a mixture of iridium and iridium oxide. The particles include an interconnected network of nanoparticles. The particles are in the range of 50 nm to 1 [mu] m, and the nanoparticles are in the range of 2 nm to 15 nm. It may have a BET surface area of 30 m2 / g or greater and a pore volume of at least 0.10 cc / g. The catalyst is prepared using an organic structure directing agent.

The invention relates to the technical field of crop monitoring, in particular to a crop phenotypic parameter automatic calculation and extraction method based on a multi-source remote sensing image. Comprising the steps that all images are determined to be in the same coordinate system through geographical registration, point cloud file conversion and ground specific point matching, and image registration is achieved; performing automatic or semi-automatic segmentation on the images determined in the same coordinate system to obtain a multi-source crop remote sensing image cell segmentation map; extracting plant phenotypic parameters, physical parameters and chemical parameters from the multisource crop remote sensing image cell segmentation map by using an algorithm; the plant phenotype parameters comprise a vegetation index, a plant height, a surface area, a volume, a canopy coverage degree and a vegetation projection area; the physical parameters comprise a canopy average temperature value, a canopy temperature standard deviation and a canopy temperature variation coefficient; the chemical parameters comprise chemical elements such as nitrogen, phosphorus, potassium, calcium and magnesium in soil and vegetation. The method has the advantages that large-scale data processing and high-precision area prediction are realized, and the crop growth monitoring capability is enhanced.

The invention discloses a leukemia targeted therapy preparation as well as a preparation method and application thereof. Comprising a DNA nanoflower carrier targeting leukemia cells through a PTK7 receptor and benzene arsenic oxide loaded on the carrier. The DNA nanoflower carrier is obtained by rolling circle amplification, and a nucleic acid aptamer complementary sequence of targeted binding leukemia cells is introduced into a template chain subjected to rolling circle amplification. The preparation method comprises the following steps: modifying sulfydryl onto a DNA nanoflower by using DNA-Dithiol, then breaking a disulfide bond by using reduced glutathione to expose the sulfydryl, and loading benzene arsenic oxide onto the DNA nanoflower through a reaction between trivalent arsenic and the sulfydryl. The structure of the DNA nanoflower has a high surface area and high porosity, and can load a large amount of PAO, so that the killing performance on cancer cells is enhanced; the aptamer sgc8 sequence is introduced into the DNA nanoflower, so that the targeting of the DNA nanoflower to cancer cells is effectively realized; the preparation also has the advantages of being good in thermodynamic stability, easy to store, excellent in biocompatibility and the like, and has a very good application prospect.

The invention relates to the technical field of water treatment, and discloses a method for circularly inducing crystallization, hardness removal and desalination of calcium carbonate. Adding the seed crystal into high salt water; adding sodium hydroxide into the heavy salt water; adding sodium carbonate to generate a supersaturated solution; introducing the solution containing the calcium carbonate crystal nucleus into crystallization equipment; treating the reacted solution through solid-liquid separation equipment; further desalting the water body subjected to hardness removal by adopting a membrane separation mode; collecting and treating the formed calcium carbonate precipitate, and recovering the precipitate by adopting a separation technology; by adopting the synthesized vaterite type seed crystal, the hardness removal and desalination efficiency is remarkably improved in the cyclic induced crystallization process of calcium carbonate. Compared with the traditional non-synthetic seed crystal, the synthetic seed crystal has higher surface area and uniformity, so that the combination of calcium ions and carbonate ions can be more quickly induced to form a stable crystal nucleus, and the overall effect of the reaction is finally improved.

The disclosure describes various aspects of a vibrationally isolated cryogenic shield for local high-quality vacuum. More specifically, the disclosure describes a cryogenic vacuum system replicated in a small volume in a mostly room temperature ultra-high vacuum (UHV) system by capping the volume with a suspended cryogenic cold finger coated with a high surface area sorption material to produce a localized extreme high vacuum (XHV) or near-XHV region. The system is designed to ensure that all paths from outgassing materials to the control volume, including multiple bounce paths off other warm surfaces, require at least one bounce off of the high surface area sorption material on the cold finger. The outgassing materials can therefore be pumped before reaching the control volume. To minimize vibrations, the cold finger is only loosely, mechanically connected to the rest of the chamber, and the isolated along with the cryogenic system via soft vacuum bellows.

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 discloses a method for preparing precipitated silicon dioxide for a heavy truck, and belongs to the technical field of silicon dioxide preparation, the method comprises the following steps: S1, selecting solid sodium silicate with modulus of 3.3-3.5, preparing a sodium silicate solution with concentration of 30-35 wt%, in the preparation process, firstly putting the solid sodium silicate into a crusher for crushing, and then putting the crushed solid sodium silicate into a stirrer for stirring; then adding the crushed solid sodium silicate into deionized water, stirring, and heating in the stirring process; the specific surface area of the target product is high and reaches 200-240 m < 2 > / g, the dispersion grade reaches 9.8 or above, meanwhile, the mechanical strength is remarkably improved, the tensile strength reaches 25 MPa or above, the 300% stress at definite elongation reaches 7.0 MPa or above, a two-step seed crystal method preparation process is adopted, the regularity of the microstructure of the product is higher, and the product has the higher surface area and higher mechanical performance.

A method for producing heat-resistant membranes with high surface area and surface porosity to be used in batteries, fuel cells and electrolysers comprises preparing single and / or more solutions, applying an electrospinning process to the single and / or more solutions, thereby obtaining a nanofiber membrane.

A sensing element for detecting a target gas or gases is disclosed. The element includes a pair of interdigitated electrodes, with a gap between each electrode in the pair. A high surface area metal oxide nanomaterial decorated with a noble metal is deposited on interdigitated electrode pair to bridge the gap. The surface area of the metal oxide nanomaterial is greater than 100m2 / g and the size of the metal oxide nanomaterial is within the range of 100-200nm. The resistance across the pair of electrodes varies when the metal oxide nanomaterial binds with the target gas or gasses. From this sensing element, sensor chips and sensor modules may be constructed to detect multiple gases.

A method for preparing a nitrogen / sulfur-rich activated carbon, of exceptionally high surface area and microporous nature, the method comprising: preparing an aromatic oligomer including a heteroatom using an oxidative polymerization solution, wherein the oxidative polymerization solution comprises a first oxidizer and an organic solvent; mixing the oligomer with an activating agent to obtain a mixture; subjecting the mixture to carbonization and activation in a tube furnace; holding the mixture at a set temperature; cooling the mixture to room temperature to obtain a carbon material; purifying the carbon material by washing; washing the carbon material with water and methanol; drying the carbon material under vacuum to obtain a microporous carbon of high surface area and nitrogen / sulfur-rich composition.

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.

The present disclosure provides a dosage form or a bolus configured for administration to a ruminant, comprising: (i) a core comprising a haloform adsorbed to a high surface area material or porous sorbent, and (ii) a housing which encapsulates the core and prevents direct release of the core into a rumen of the ruminant. The present disclosure also provides a system for inhibiting methane production in a ruminant, and a method of inhibiting methane production in a ruminant.

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 present invention belongs to the technical field of hydrogels. Specifically, it relates to a conductive hydrogel for skull defect repair, which is prepared by polymerizing methacrylated polysaccharide, ionic liquid monomer and two-dimensional titanium-based conductive material under the action of an initiator and a promoter. The mass fractions of methacrylated polysaccharide, ionic liquid monomer, two-dimensional titanium-based conductive material and initiator in the hydrogel are 1.0% - 5.0%, 1.0% - 10%, 0.1% - 5.0% and 0.1% - 2.0% respectively, and the volume fraction of the promoter is 0.05% - 1.0%. The methacrylated polysaccharide used in the conductive hydrogel of the present invention has good biocompatibility and biodegradability, and can be gradually degraded in vivo without producing toxic reactions; the two-dimensional titanium-based conductive material used has excellent electrical conductivity and high surface area, which improves the overall electrical conductivity of the hydrogel, and promotes the proliferation and differentiation of osteocytes and accelerates the regeneration and healing of bone tissue by providing weak electrical stimulation.

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.

A redox flow battery (RFB) is provided. The battery generally includes a catholyte including cerium ions, an anolyte including titanium ions, a porous cathode in contact with the catholyte, a porous anode in contact with the anolyte, and an ion exchange membrane positioned between the cathode and the anode, where the anode has a higher surface area than the cathode or the anode has a thickness greater than a thickness of the cathode, where the membrane is configured to restrict and / or prevent the passage of the cerium ions and / or the titanium ions and maintain ionic conductivity between the catholyte and the anolyte. A method for storing electricity and a method for generating an electrical current are also provided.

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

Disclosed herein are mesoporous ceria nanoparticles for the prevention, treatment, or alleviation of ophthalmic diseases. In one aspect, having mesoporous structure with high surface area and pore size and mimicking the catalytic properties of catalase and superoxide dismutase (SOD), the mesoporous ceria nanoparticles of the present invention have excellent ability to scavenge reactive oxygen species, exhibit anti-inflammatory effects, demonstrate biocompatibility without causing acute side effects or ocular toxicity in the retina, and are recognized to provide protective effects against cellular damage and protect damaged retinal pigment epithelial (RPE) cells and photoreceptors under high oxidative stress. Therefore, the nanoparticles can be utilized for the prevention, treatment, or alleviation of macular degeneration and various oxidative stress-mediated ophthalmic diseases.

A thermal protection module that includes a first element, a second element, a first bracket, and a second bracket. The first element includes a first shell that defines a closed first cavity. The first shell includes a base and a cap. The second element includes a second shell that defines a closed second cavity. The second shell includes a base, a cap, and two sidewalls that each extend between the base and the cap. A first sidewall of the two sidewalls that is closer to the first element meets the cap to form a divider. The divider is positioned above the cap of the first shell when the base of the first shell and the base of the second shell are disposed within the same plane. The first bracket and the second bracket maintain the gap defined between the first element and the second element along the length thereof.