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51 results about "Catalytic particle" patented technology

Physical response data analysis method and system based on aircraft catalytic operation

The invention provides a physical response data analysis method and system based on aircraft catalytic operation, and the method comprises the steps: obtaining three-dimensional cloud particle distribution data sets of a catalytic operation region before and after the catalytic operation through airborne cloud particle detection equipment, the three-dimensional cloud particle distribution data set comprises particle characteristic data before catalysis and particle characteristic data after catalysis; performing morphological feature extraction processing on the pre-catalysis particle feature data and the post-catalysis particle feature data by adopting a cloud particle AI image shape recognition algorithm to generate a pre-catalysis particle morphological difference feature set and a post-catalysis particle morphological difference feature set; constructing a dynamic physical response evaluation model, inputting the particle morphological difference feature set into the dynamic physical response evaluation model to execute multi-dimensional response correlation analysis, and generating a dynamic response feature set of the catalytic operation; and generating a catalytic strategy optimization instruction set according to the dynamic response feature set, and transmitting the catalytic strategy optimization instruction set to the airborne catalytic control system for catalytic parameter adjustment operation.
Owner:CHINA METEOROLOGICAL ADMINISTRATION WEATHER MODIFICATION CENT

Plasma hydrodynamic cavitation aeration coupled piezoelectric catalysis organic wastewater treatment system and method

The invention discloses a plasma hydrodynamic cavitation aeration coupled piezoelectric catalysis organic wastewater treatment system and method. The system comprises a wastewater tank, a water pump, a Venturi tube hydrodynamic cavitator, a catalytic oxidation reactor, a piezoelectric particle separator, a piezoelectric catalytic particle bin, a low-temperature plasma generator and an air pump. By coupling piezoelectric catalysis, pressure pulsation mechanical energy generated by hydrodynamic cavitation is converted into chemical energy for driving the piezoelectric effect, on one hand, pollutants are directly oxidized, and on the other hand, plasma by-product H2O2 is efficiently converted into. OH with strong oxidizing property, so that cooperation with plasma advanced oxidation is formed, and the pollutant removal efficiency is improved. The pollutant degradation energy efficiency and the energy utilization rate of the system are greatly improved. Meanwhile, the system realizes efficient recovery and cyclic utilization of the magnetic piezoelectric catalytic particles through the magnetic separation type piezoelectric particle separator, so that secondary pollution of the catalyst is fundamentally avoided.
Owner:JIANGSU UNIV

PES / CP / CoCo-PBA composite catalytic membrane as well as preparation method and application thereof

The invention belongs to the technical field of advanced oxidation and membrane separation, and particularly relates to a PES / CP / CoCo-PBA composite catalytic membrane and a preparation method and application thereof.The PES / CP / CoCo-PBA composite catalytic membrane comprises a PES basement membrane and a catalytic activity layer combined on the PES basement membrane in situ through a phase inversion method, the catalytic activity layer is made of a CP / CoCo-PBA composite material, and the preparation method of the composite catalytic membrane comprises the steps that the PES basement membrane and the catalytic activity layer are combined in situ through a phase inversion method; the CP / CoCo-PBA composite material is formed by enabling catalytic particles CoCo-PBA to grow on a carbon material in situ through a hydrothermal method. The PES / CP / CoCo-PBA composite catalytic membrane provided by the invention has excellent catalytic degradation performance and good stability, not only has conductivity to realize the effect of electrochemically activating PMS, but also can keep higher mechanical strength and pollution resistance to meet the requirements of long-term operation and large-scale industrial application.
Owner:ZHEJIANG NORMAL UNIV

Width gradient tungsten disulfide nanobelt, preparation method of width gradient tungsten disulfide nanobelt and application of width gradient tungsten disulfide nanobelt in self-driven photoelectric detector

The invention discloses a width gradient tungsten disulfide nanobelt, a preparation method thereof and an application of the width gradient tungsten disulfide nanobelt in a self-driven photoelectric detector, a Ni film is deposited on a substrate and is annealed to form catalytic particles, and a chemical vapor deposition system is utilized to accurately control the temperature gradient between tungsten trioxide in a central temperature zone and a growth substrate in a downstream temperature zone, so that the width gradient tungsten disulfide nanobelt is obtained. And the solid sulfur source is propelled at a constant rate, the dynamic change of the sulfur / tungsten atomic ratio in the reaction environment is regulated and controlled, and a growth mode is guided to be converted from a gas-liquid-solid mechanism to a gas-solid mechanism, so that controllable preparation of the tungsten disulfide nanobelt with the width continuously and progressively decreased in the axial direction is realized. The width of the nanobelt gradually changes from 150-500 nm to 50-120 nm, the length of the nanobelt reaches 3-12 [mu] m, and the nanobelt has an armchair edge and a 3R phase stacking structure. A self-driven photoelectric detector constructed based on the nanobelt realizes high-sensitivity detection of 532 nm laser under zero bias voltage, the responsivity reaches 5.04 A / W, the detectivity reaches 3.23 * 10 < 12 > Jones, and the nanobelt shows important application value in the fields of optical signal detection, optical switches and wireless optical communication.
Owner:INST OF PHYSICS HENAN ACAD OF SCI +1

Pt-Pd composite electrode and preparation method and application thereof

The invention relates to a Pt-Pd composite electrode and a preparation method and application thereof. The preparation method comprises the following steps: placing a conductive substrate in an electro-deposition liquid, taking the conductive substrate as a working electrode, sequentially carrying out first electro-deposition and second electro-deposition, and forming a Pt-Pd composite catalyst layer on the surface of the conductive substrate to prepare the Pt-Pd composite electrode, the electro-deposition liquid comprises a platinum source, a palladium source and a supporting electrolyte. The Pt-Pd composite electrode is prepared through cooperation of Pt and Pb, the structural stability of the electrode is remarkably improved, meanwhile, layer-by-layer growth of catalytic particles is achieved in the mode that first electrodeposition and second electrodeposition are combined, it is guaranteed that catalytic active sites are fully exposed, it is also guaranteed that the binding force between a plating layer and a substrate is extremely high, and the service life of the plating layer is prolonged. The electrode is used for electrochemically synthesizing ammonia, has relatively high Faraday efficiency, is particularly suitable for long-term operation under high current density, and has a good industrial application prospect.
Owner:JIANGSU OASIS QINGNENG TECHNOLOGY CO LTD

Monolithic carbon monoxide adsorption catalyst and preparation method thereof

The invention belongs to the technical field of catalysts, and particularly relates to a monolithic carbon monoxide adsorption catalyst and a preparation method thereof. The monolithic carbon monoxide adsorption catalyst is loaded with metal catalytic particles, and the metal catalytic particles comprise copper particles, manganese particles and cerium particles; a carrier of the integral carbon monoxide adsorption catalyst is coated with gamma-aluminum oxide, and the catalyst is also loaded with lanthanum oxide. The monolithic carbon monoxide catalyst provided by the invention is relatively high in sulfur resistance and water resistance.
Owner:SHENHUA SHENDONG COAL GRP +2

Process method for optimizing copper lattice to improve binding force of plating layer

The invention relates to the technical field of printed circuit boards, and discloses a process method for optimizing a copper lattice to improve the binding force of a plating layer, which comprises the following steps of: glue residue removal treatment: carrying out glue residue removal treatment on a drilled printed circuit board to form a roughened structure on the surface of a hole wall; activating treatment: adsorbing palladium catalytic particles on the coarsened pore wall surface to form a uniformly distributed catalytic center; and chemical copper deposition: immersing the activated plate in a chemical copper solution, controlling the reaction temperature to be 41-45 DEG C, maintaining the concentration of copper ions, alkali and a reducing agent through automatic compensation and liquid mixing, and depositing on the hole wall to form an initial copper layer. The technological method for optimizing the copper lattice to improve the coating binding force aims at solving the problems that in high-density interconnection and high-speed and high-frequency printed circuit board manufacturing, due to the fact that a traditional chemical copper plating technology lacks dynamic regulation and control capacity, the coating binding force is insufficient, the lattice structure is loose, and uniformity is poor.
Owner:HUANGSHI HUSHI ELECTRONICS CO LTD

Flue gas denitration agent and denitration process thereof

The invention discloses a flue gas denitration agent which comprises the following components in percentage by weight: 30%-50% of organic amine, 45%-60% of polyol, 1%-5% of bio-oil, 0.2%-0.5% of an emulsifier, 0.1%-0.2% of a nanoparticle catalyst and 0.05%-0.1% of a bactericide, and relates to the technical field of flue gas treatment. According to the flue gas denitration agent and the denitration process thereof, various components such as organic amine, polyol, bio-oil, an emulsifier, a nanoparticle catalyst and a bactericide are compounded, all the components have a synergistic effect and give full play to respective advantages, the organic amine serves as a reducing agent to provide a nitrogen source, the polyol plays a role in dispersion and stabilization, and the bio-oil has a synergistic effect. The bio-oil improves the local cracking temperature and promotes the denitration reaction, the emulsifier enables all the components to form a uniform microemulsion structure, the nanoparticle catalyst provides more active sites and improves the reaction rate, the bactericide guarantees the storage stability of the denitration agent, the nano catalytic particles serve as the core, a multi-layer distributed microemulsion structure is formed, and the denitration effect is improved. And uniform distribution of liquid drops in the spraying process is ensured.
Owner:JIANGSU TONGJI TECH CO LTD

Moving packed bed processing plant utilizing medium temperature heating and superheating of process materials and gas

PendingUS20250339829A1HydrogenPyrolysis reactionsPhysical chemistrySuperheating
The present disclosure provides a system comprising a reactor, a medium temperature heating section and a superheating section. The reactor comprises a moving packed bed of catalytic particles and a feed gas interacting with the catalytic particles. A decomposition and reaction section of the reactor is configured to receive the catalytic particles and the feed gas, and to provide heat transfer between the catalytic particles and the feed gas such that a reaction occurs that generates a gaseous product and a solid product. The medium temperature heating section is configured to heat at least one of gases or catalytic particles to a first defined temperature, and the superheating section is configured to heat the at least one of gases or catalytic particles received from the medium temperature heating section with an electrical system and to provide the at least one of gases or catalytic particles heated to the reactor.
Owner:X ENERGY LLC

Semi-additive process for catalytic printed circuit boards

A process for fabricating a circuit board uses a catalytic dielectric core having catalytic particles, a foil top surface, and a thin foil bottom surface with a foil backing of sufficient thickness to absorb heat from a laser drilling operation to prevent the penetration of the thin foil bottom surface during laser drilling. A sequence of steps including a laser drilling step, removing the foil backing step, electroless plating step, patterned resist step, electroplating step, resist strip step, tin plate step, and copper etch step are performed, which provide dot vias of fine linewidth and resolution.
Owner:CATLAM LLC

A method for preparing a nanofiber tubular membrane based on a separable magnetic particle anti-fouling function

This invention discloses a method for preparing a magnetic nanofiber tubular membrane based on the antifouling function of separable magnetic particles, comprising the following steps: 1) thoroughly mixing equal volumes of iron salt solution and fumaric acid solution and then subjecting the mixture to ultrasonic treatment, followed by a hydrothermal reaction; 2) thoroughly mixing the solid product obtained in step 1) with a sulfiding agent-ethanol solution at a certain mass ratio, and then continuing the hydrothermal reaction to obtain Fe3S4 magnetic catalytic particles; 3) weaving polyester fibers into a braided tube and nesting it on axially stacked magnetic tubes to form a magnetic braided tube; 4) dissolving the fiber-forming polymer in a solvent to obtain a uniform and stable spinning solution; using the magnetic braided tube obtained in step 3) as a receiver, the spinning solution obtained in step 4) is spun into a magnetic nanofiber tubular membrane using electrospinning technology; 6) loading the magnetic catalytic particles obtained in step 2) onto the surface of the membrane obtained in step 5), thereby obtaining the Fe3S4 / magnetic nanofiber tubular membrane.
Owner:TIANJIN POLYTECHNIC UNIV

Method of growing ultra-long carbon nanotubes

PCT designated stageWO2025226493A1Raman scatteringCarbon nanotubesYarnPtru catalyst
A method for growing ultra-long carbon nanotubes includes operating a chemical vapor deposition (CVD) system to grow a carbon nanotube, monitoring in real-time the behavior of the catalyst (e.g., catalytic particle) of the CVD system, and dynamically adjusting process conditions for operating the CVD system based on said monitoring to maintain the catalyst (e.g., catalytic particle) active for a longer period of time and grow ultra-long carbon nanotubes that can be used to make yarn that can be used to make ropes, fabrics or macroscopic wires with higher strength that can be used in structural applications.
Owner:INFINITY NANO LLC

A method and device for photo-thermal synergistic self-heating carbon capture and in-situ conversion

PendingCN122643822Aavoid dependenceLow regeneration energy consumptionPtru catalystSorbent
The application discloses a kind of photo-thermal synergic self-heating carbon capture and in-situ conversion method and device, it is related to flue gas carbon dioxide capture and resource utilization technical field, wherein the method includes: the flue gas containing carbon dioxide is passed into the adsorption tower equipped with core-shell type photo-thermal adsorption catalytic particles, and carbon dioxide is adsorbed by particle core layer at normal temperature;After core layer adsorption saturation, adsorption tower is switched to closed cycle, and the light focusing system is started to focus sunlight, so that shell layer photo-thermal material generates plasmonic resonance effect and forms local high temperature, drives core layer to desorb carbon dioxide;Desorbed carbon dioxide and hydrogen occur hydrogenation reaction on the surface of shell layer catalyst, and in-situ generate liquid formic acid and release reaction heat;Relies on the heat to build self-heating cycle, auxiliary adsorbent is completely regenerated, collects tower bottom liquid formic acid, equipment is switched back to adsorption mode, and complete single-tower complete working cycle.The application realizes carbon dioxide adsorption in-situ conversion by photo-thermal coupling self-heating cycle, and reduces regeneration energy consumption.
Owner:BEIJING HUANENG CHANGJIANG ENVIRONMENTAL PROTECTION TECH RES INST CO LTD +1

Aquatic feed processing waste gas treatment device coupled with spraying and catalytic ozonation

PendingCN121944750AEffectively cope with complex working conditionsAdequate mixing residence timeDispersed particle separationAir quality improvementGas solidCatalytic oxidation
The invention discloses an aquatic feed processing waste gas treatment device coupled with spraying and catalytic ozonation, and belongs to the technical field of feed processing, the aquatic feed processing waste gas treatment device comprises at least two catalytic oxidation towers, the two catalytic oxidation towers are arranged in series along a waste gas conveying direction; the induced draft fan is arranged at the downstream of the last-stage catalytic oxidation tower; wherein a wet treatment area and a dry treatment area are sequentially arranged in the catalytic oxidation tower in the waste gas conveying direction; a spraying pipeline and a first ozone injection pipeline are arranged in the wet treatment area; and at least one group of catalytic oxidation components and a second ozone injection pipeline are fixedly arranged in the dry treatment region along the waste gas conveying direction. The device adopts a wet spray oxidation and dry ozone catalysis two-stage coupling process, effectively deals with complex working conditions of aquatic feed waste gas, physically isolates a mixing cavity from a catalytic oxidation cavity, fully pre-mixes ozone and waste gas, periodically sucks by a piston, forcibly pushes mixed gas to penetrate catalytic particles, remarkably strengthens gas-solid mass transfer and improves catalytic efficiency.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA

Carbon monoxide catalyst, and preparation method therefor and use thereof

The present invention relates to the field of catalysts, and specifically to a carbon monoxide catalyst, and a preparation method therefor and a use thereof. The carbon monoxide catalyst comprises a carrier and metal catalytic particles supported in the carrier, or the metal catalytic particles and metal oxide catalytic particles; metals in the metal catalytic particles or the metal oxide catalytic particles include a noble metal, titanium, cerium, cobalt, nickel, and molybdenum. Since the selected carrier and metals have high stability to acids, the sulfur tolerance and water tolerance of the carbon monoxide catalyst are high, so that the carbon monoxide catalyst has high catalytic stability in sintering flue gas purification. The carbon monoxide catalyst provided by the embodiment of the present invention has the catalysis principle of promoting oxidation-reduction reaction of a target gas, and thus, the carbon monoxide catalyst provided by the embodiment of the present invention can also be used for catalyzing other combustible gases such as methane, ethanol, hydrogen, and low-volatile organic compounds.
Owner:UNIV OF SCI & TECH BEIJING

Sulfur trioxide gas standard generation device and generation method

The invention discloses a sulfur trioxide gas standard generation device and method, a gas dilution mixing system inputs double gas sources and can realize accurate regulation and control of reaction gas concentration and flow, and the outlet end of the gas dilution mixing system is connected with a sulfur trioxide generation system; the sulfur trioxide generation system comprises a reaction furnace, a quartz reaction tube and a heater, the quartz reaction tube is arranged in the reaction furnace, the quartz reaction tube is filled with composite catalytic particles, the outer side of the quartz reaction tube is coated with a heating sleeve, and the heater is embedded in the upper part in the reaction furnace; the outlet end of the quartz reaction tube is respectively connected with a detection system and a collection condensation system through a heat-preservation vaporization system, the output end of the collection condensation system is connected with the detection system, and the output end of the detection system is connected with a tail gas absorption system. The problems of lack of SO3 standard gas and poor stability at present can be effectively solved, a reliable standard substance is provided for accurate monitoring of sulfur trioxide gas, and the performance and the quantity value traceability of detection equipment are improved.
Owner:NATIONAL INSTITUTE OF METROLOGY CHINA

Catalyst for preparing low-carbon olefin from CO2 as well as preparation method and application of catalyst

The invention belongs to the technical field of carriers, and particularly relates to a catalyst for preparing low-carbon olefin from CO2 as well as a preparation method and application of the catalyst. Based on a new idea of carbon dioxide capture-conversion coupling, a series of bifunctional catalytic particles K / BayFeO3 (y = 0.6-1.2) with an oxygen carrying function are constructed through potassium / barium coordination and barium regulation strategies. Rich oxygen vacancies on the surface promote CO2 adsorption and dissociation, and the catalytic activity is improved; the strong electron donating performance under K / Ba synergism promotes conversion of intermediate species to olefin, inhibits excessive hydrogenation, and reduces methane. The selectivity of low-carbon olefin C2 =-C4 = is 57% or above, and the alkane ratio O / P is 7.36 or above. The K / BayFeO3 prepared by the method takes perovskite as a structural framework, is excellent in stability and is not inactivated after being continuously used for more than 500 hours, and the catalytic performance is in a stable increasing trend along with the prolonging of the reaction time.
Owner:NINGXIA UNIVERSITY +1

Composite fire coal auxiliary agent, preparation method thereof and application of composite fire coal auxiliary agent in pulverized coal combustion

The invention relates to the technical field of fire coal aids, in particular to a composite fire coal aid as well as a preparation method and application thereof in pulverized coal combustion. The composite fire coal additive is prepared from the following components in percentage by mass: 9-22% of a transition metal salt composite solution, 10-16% of an organic polymer surfactant, 5-12% of an alkaline buffer and chelating agent synergistic system, 2-7% of nanoscale active catalytic particles and the balance of deionized water, the prepared composite fire coal additive is atomized and sprayed on the surfaces of coal particles according to 0.4-0.9% of the mass of coal, and then the coal is fed into a gasification furnace for combustion gasification reaction. According to the invention, the activation energy of coal combustion can be obviously reduced, the combustion reaction rate can be accelerated, the coal can be more quickly and fully combusted in the gasification furnace, the combustion efficiency of the coal is improved, and the combustion rate of the coal can be improved by 8-15% compared with the combustion rate of the coal without using the auxiliary agent, so that the output of combustible gas is increased, and the energy conversion efficiency of the gasification furnace is improved.
Owner:QUANZHOU CHAOXU NEW ENERGY TECH CO LTD

Organic waste gas treatment combustion heat recovery device

The utility model discloses an organic waste gas treatment combustion heat recovery device, which relates to the technical field of organic waste gas, and comprises a heating bin, a rotating motor and a spiral pipe, the top of the heating bin is provided with the rotating motor, the output end of the rotating motor is connected with a rotating shaft, and the outer side of the heating bin is sleeved with the spiral pipe. A shell is arranged on the outer side of the spiral pipe, an air inlet pipe is arranged at one end of the spiral pipe, a pump body is installed on one side of the heating bin, a conveying pipe is connected to one side of the pump body, a water bin is connected to one end of the conveying pipe, a preheating bin is arranged in the water bin, and a control motor is installed at the top of the preheating bin; waste gas generated after combustion is conveyed into the spiral pipe in the shell through the gas inlet pipe and conveyed into the heating bin through the water inlet pipe, water in the heating bin is heated, and therefore on one hand, hot water can preheat catalytic particles and can clean waste gas treatment equipment, and practicability is improved.
Owner:JIANGSU CHAORI PURIFICATION TECH CO LTD

A coupled SCR system

Procedures for treating NO x and soot-containing engine exhaust stream, comprising: the contacting of the engine exhaust stream with an oxidation catalyst comprising at least one platinum group metal selected from platinum, palladium or a combination of platinum and palladium, wherein the platinum group metal is applied to a high surface area primer component selected from aluminum oxide, zeolite, silicon dioxide, non-zeolite silicon dioxide-aluminum oxide, cerium oxide, zirconia, titanium dioxide or a mixed or compound oxide containing both cerium oxide and zirconia, wherein the oxidation catalyst is adapted to release a gas stream having a NO to NO2 ratio of 4:1 to 1:3 per volume; the contacting of the gas stream in the presence of a reducing agent with a flow monolith with a first SCR catalyst composition loading and a first volume to generate an intermediate gas stream; the contacting of the intermediate gas stream with a closely coupled catalytic particulate filter with a second SCR catalyst composition loading and a second volume, wherein the second volume is at least twice the first volume, in order to capture some of the soot and produce a clean gas stream; the oxidation of the soot component at a soot oxidation temperature to renew the catalytic particulate filter; Heating the catalytic tightly coupled flow monolith to an SCR start-up temperature before the catalytic particulate filter is heated to an SCR start-up temperature; and Maintaining, under low load conditions, the soot oxidation temperature of the catalytic particulate filter for a longer period of time, compared to a catalytic particulate filter with a volume equal to the combined first and second volumes.
Owner:JOHNSON MATTHEY PLC

Tail gas catalytic treatment device, processing method thereof and fuel cell hydrogen elimination system

The invention discloses a tail gas catalytic treatment device, a processing method thereof and a fuel cell dehydrogenation system, and relates to the technical field of tail gas treatment. The tail gas catalytic treatment device comprises a catalytic module; the catalytic module comprises a plurality of catalytic honeycomb carrier layers sequentially arranged in the preset exhaust direction and catalytic particle layers located between every two adjacent catalytic honeycomb carrier layers. The catalytic module is of a sandwich type segmented structure formed by a catalytic honeycomb carrier layer and a catalytic particle layer, tail gas alternately flows through the catalytic honeycomb carrier layer and the catalytic particle layer, the advantages of the two catalytic structures can be fully played, and high mass transfer efficiency and high catalytic efficiency are achieved. According to the multi-layer catalytic layer, when the concentration of the to-be-treated component suddenly rises, the reaction load is distributed to each catalytic layer, so that the load amplification of a single catalytic layer can be reduced, each catalytic layer can operate in a safe operation interval, and the conversion rate of the to-be-treated component in the tail gas is ensured.
Owner:CRRC QINGDAO SIFANG CO LTD

Coil pipe heat exchange system, heat exchange method and solid hydrogen storage and desorption system

The invention provides a coil pipe heat exchange system, a heat exchange method and a solid hydrogen storage and desorption system.The coil pipe heat exchange system comprises a coil pipe heat exchange structure, the inner wall of the coil pipe heat exchange structure is used for making contact with the outer wall of a solid hydrogen storage device, and the coil pipe heat exchange structure sequentially comprises a hydrogen-oxygen reaction area, a heat exchange area and a tail gas heat exchange area in the fluid flowing direction; the hydrogen-oxygen reaction zone and the heat exchange zone are filled with mixed bed layers, and the mixed bed layers comprise hydrogen-oxygen reaction catalytic particles and high-thermal-conductivity particles; the space proportion of the hydrogen-oxygen reaction catalytic particles and the high-thermal-conductivity particles in the mixed bed layer is configured based on the hydrogen concentration parameter in the inlet gas of the solid hydrogen storage device; wherein the volume ratio of the high-thermal-conductivity particles in the inlet area of the mixed bed layer is configured to be increased along with the increase of the hydrogen concentration. The hydrogen-oxygen reaction uniformly occurs along the tube pass, the solid hydrogen storage device is uniformly heated in the axial direction and the radial direction, the temperature difference of the hydrogen storage alloy bed layer is small, and thermal stress is reduced; according to the embodiment of the invention, filling of catalytic particles is reduced, and the cost is saved.
Owner:BEIJING JARAN HYDROGEN ENERGY TECH CO LTD

Electrolyte membrane for fuel cells comprising a catalytic composite with improved oxygen permeability and method for its preparation

Disclosed is an electrolyte membrane for a fuel cell including a catalytic composite having improved oxygen permeability and a method for preparing the same, the electrolyte membrane including a catalytic composite including catalytic particles coated with an oxygen permeable material. The electrolyte membrane for a fuel cell includes an ion transport layer of an ionomer having proton conductivity and a catalytic composite dispersed in the ion transport layer, the catalytic composite including catalytic particles having a catalytic metal component having activity to decompose hydrogen peroxide and a coating layer formed on at least a portion of the surface of the catalytic particles and including an oxygen permeable material.
Owner:HYUNDAI MOTOR CO LTD +1

A AgCl-RuO2-Co3O4 / SiO2 electrocatalyst and its preparation method and application

The present invention relates to the field of electrocatalytic oxygen evolution technology, and in particular to an AgCl-RuO2-Co3O4 / SiO2 electrocatalyst, its preparation method, and application. The AgCl-RuO2-Co3O4 / SiO2 electrocatalyst uses a mesoporous SiO2 material as a carrier and has a nano-mesoporous structure, which ensures a large specific surface area of ​​the catalyst and is conducive to increasing the metal active sites of the catalyst. It is also loaded with AgCl, RuO2, and Co3O4 nanoparticles, with uniform catalytic particle distribution and strong catalytic activity. The electrocatalyst has an oxygen evolution overpotential as low as 20mV@10mA·cm ‑2 , having excellent acidic electrocatalytic oxygen evolution performance. The present invention also successfully prepared the electrocatalyst by combining impregnation and calcination. The method is simple, efficient, low-cost, and has the advantages of controllable preparation, making it suitable for industrial production and large-scale application.
Owner:KUNMING UNIV OF SCI & TECH

Doped hydrotalcite derived composite metal oxide catalyst as well as preparation method and application thereof

The invention belongs to the technical field of carbon dioxide resource utilization, and particularly relates to a doped hydrotalcite-derived composite metal oxide catalyst (M / CuMgFe) and a preparation method and application thereof. The doped hydrotalcite-derived composite metal oxide catalyst comprises catalytic particles and a hydrophobic layer coated on the surfaces of the catalytic particles, and the catalytic particles comprise a magnesium-iron hydrotalcite-like carrier and copper loaded on the magnesium-iron hydrotalcite-like carrier. The doped hydrotalcite-derived composite metal oxide catalyst provided by the invention can significantly improve the conversion rate of carbon monoxide preparation through carbon dioxide hydrogenation inversion at a low temperature.
Owner:XIAMEN SIYAN NEW MATERIAL TECH CO LTD

Catalyst systems and methods of making and using same

Catalyst systems and methods of making and using the same. The catalyst system may include a plurality of catalytic particles and a plurality of catalytically inert particles configured to be mixed with each other or to be mixed with each other. The catalytic particles may include a Group 8-10 element disposed on a support and a first accelerator comprising Sn, Cu, Au, Ag, Ga, a combination thereof, or a mixture thereof. The catalytic particles may include 0.001 wt% to 6 wt% of a Group 8-10 element and up to 10 wt% of a first accelerator and the support includes Al and at least 0.5 wt% of a Group 2 element, based on the weight of the support. The catalytically inert particles may be free of Group 8-10 elements. The composition of the catalytically inert particles and the composition of the carrier may be the same or different.
Owner:EXXONMOBIL RESEARCHK & ENG CO

Composite adsorption filler for deodorizing and purifying sewage and preparation method of composite adsorption filler

The invention discloses a composite adsorption filler for sewage deodorization and purification and a preparation method thereof, belongs to the technical field of sewage treatment filter materials, and aims to solve the technical problem that the purification performance and the mechanical performance of a composite adsorption filter material for sewage treatment in the prior art need to be further improved. According to the composite filter material prepared by the preparation method disclosed by the invention, the quaternized silica skeleton particles, the N-S-P doped porous hard carbon particles and the multi-metal oxide adsorption catalytic particles are synergistically constructed, so that the material forms a systematic functional network in the aspects of a microcosmic pore channel structure, interface charge regulation and control and multivalent reaction sites; according to the structural system, rapid adsorption, directional migration and efficient conversion of pollutants can be achieved at the same time, a continuous multi-stage purification path is constructed, and in addition, the composite structure endows the material with good mechanical stability and chemical tolerance, so that the material keeps stable purification capacity in long-term operation.
Owner:JIANGSU MINGXUAN ENVIRONMENT TECH

Cathode of electrolytic deoxidation device and preparation method thereof, electrolytic deoxidation device and refrigerator

The present invention provides a cathode for an electrolytic deoxidation device, a method for preparing the same, an electrolytic deoxidation device, and a refrigerator. The cathode for the electrolytic deoxidation device comprises a catalytic membrane, the catalytic membrane being made from a precursor through a pressing process; and the precursor comprising carbon particles and catalytic particles deposited on at least a portion of the carbon particles, wherein the catalytic particles are selected from the group consisting of platinum, gold, silver, manganese, and rubidium. Since carbon particles are conductive, and precious and rare metals such as platinum, gold, silver, manganese, and rubidium can promote the adsorption and reduction of oxygen, the present invention provides a new cathode for an electrolytic deoxidation device by combining carbon particles and catalytic particles, which has significantly improved electrocatalytic performance, thereby facilitating an increase in the electrochemical reaction rate of the cathode.
Owner:QINDAO HAIER REFRIGERATOR CO LTD +1

Preparation method and application of adhesive with catalytic water dissociation function

The invention discloses a preparation method and application of an adhesive with a catalytic water dissociation function, and belongs to the field of new energy, the preparation method of the adhesive with the catalytic water dissociation function comprises the following steps: S1, fully stirring acrylic acid, methyl acrylate, N, N-methylenebisacrylamide, an emulsifier and pure water, raising the temperature to 40-60 DEG C, and stirring for 20-30 minutes; the preparation method comprises the following steps: S1, dissolving an initiator into pure water to obtain a solution A, dissolving a metal ion compound into pure water to obtain a solution B, and S3, dropwise adding the solution A and the solution B into the monomer solution in a slow and continuous dropwise adding manner for 0.5-2 hours, heating to 50-75 DEG C, and reacting for 1-5 hours to obtain the adhesive with the catalytic water dissociation function. According to the prepared adhesive, through internal active catalytic particles, the activation energy barrier of water molecule dissociation is remarkably reduced, the dissociation efficiency of water in the electrolytic hydrogen production process is improved, and then the hydrogen production energy efficiency is improved.
Owner:HEBEI MINGBANG PENGDA ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD