457 results about "Electrolysis of water" patented technology

The invention discloses a water electrolysis hydrogen production electric pile performance evaluation method, and relates to the field of electric pile performance evaluation, and the method comprises the steps: S1, collecting operation parameters through a sensor system, carrying out preprocessing and time sequence alignment, and constructing a real-time data set; s2, according to the real-time data set and historical data, a stack health index is calculated through multi-layer feature hierarchical fusion and a machine learning model; s3, on the basis of the real-time data set, calculating a composite evaluation index parameter containing a safety margin factor and a performance degradation rate; s4, on the basis of the stack health index, analyzing in combination with the composite evaluation index parameters, and determining the stack performance state grade; and S5, extracting a maintenance suggestion in a preset level and maintenance strategy mapping relation based on the pile performance state level, and transmitting the maintenance suggestion to a visual interface for display through the cloud platform. Through multi-layer feature fusion and machine learning, the method achieves the precise evaluation of the health index of the galvanic pile, dynamically monitors the fault early warning, automatically generates an intelligent maintenance strategy, optimizes the performance, and prolongs the service life of equipment.

The invention belongs to the technical field of preparation of new energy materials, and particularly provides a production control method and system for a catalyst for hydrogen production through electrolysis of water. The method comprises the following steps: collecting dynamic parameters of a precursor solution in real time; performing time sequence feature extraction on the dynamic parameters through an edge calculation node, and calculating a current density variation coefficient; the dynamic parameters and the current density variable coefficient are input into a multi-objective optimization model, and a real-time regulation and control instruction of the electro-deposition duty ratio and the annealing temperature gradient is generated; the duty ratio and the temperature gradient are adjusted according to the real-time regulation and control instruction, and the water electrolysis hydrogen production catalyst is produced based on the adjusted parameters; the distribution uniformity of elements on the surface of the catalyst is verified through a spectral analysis technology, and a verification result is fed back to the multi-objective optimization model for parameter iterative optimization. Dynamic parameters of a precursor solution are collected in real time, time sequence characteristics are extracted in combination with edge calculation nodes, a current density variable coefficient is calculated, and dynamic sensing and stability quantitative evaluation of the process state are achieved.

The invention discloses a gas-liquid treatment method and device of an alkaline electrolytic water hydrogen production system, a processor and a medium, and relates to the technical field of electrolytic hydrogen production. The method comprises the following steps: acquiring an actual value of the concentration of dissolved-state oxyhydrogen in the oxyhydrogen catalytic reaction unit through a dissolved-state oxyhydrogen monitor; the concentration of dissolved-state hydrogen and oxygen in the hydrogen and oxygen catalytic reaction unit is predicted, and a predicted value is generated; a preset concentration threshold value is obtained, and a closed-loop regulation and control instruction for the electrolyte circulating pump is generated based on the actual value, the predicted value and the preset concentration threshold value; and controlling the electrolyte circulating pump to execute corresponding control operation based on the closed-loop regulation and control instruction. Dissolved hydrogen and oxygen are treated through the hydrogen and oxygen catalytic reaction unit, an actual value is obtained in real time in combination with the dissolved hydrogen and oxygen monitor, then the electrolyte circulating pump is regulated and controlled according to the actual value, a predicted value and a preset concentration threshold value, potential safety hazards are reduced, meanwhile, working condition fluctuation is adapted, and stable gas-liquid treatment is guaranteed.

The invention belongs to the technical field of electrolytic cells for hydrogen production through water electrolysis, and particularly relates to an ultrahigh-current-density multi-layer metal composite type hydrogen production electrolytic cell and a preparation method thereof, and the ultrahigh-current-density multi-layer metal composite type hydrogen production electrolytic cell comprises a central diaphragm, a cathode electrode, an anode electrode, a sealing gasket, a bipolar plate and an end plate, the fastening bolt horizontally penetrates through the mounting holes of the left end plate and the right end plate to fix the bipolar plate, the sealing gasket, the cathode electrode, the diaphragm and the anode electrode between the left end plate and the right end plate in a limiting mode. Nickel base alloy (including pure nickel) or titanium alloy (including pure titanium) is adopted as an alkali corrosion resisting layer in the end plates and the bipolar plate in the contact face with alkaline electrolyte, the thickness of the alkali corrosion resisting layer ranges from 0.2 mm to 1.0 mm, and the thickness of the alkali corrosion resisting layer ranges from 0.2 mm to 1.0 mm. The hydrogen production electrolytic tank has the advantages that the hydrogen production electrolytic tank breaks through the 0.08 mm limit of an electroplated coating, is suitable for safe operation in equipment with the current density strength higher than 3000A / m < 2 > and even reaching 10000A / m < 2 >, reduces the risk that the alkali-resistant corrosion layer is broken down by current and is damaged, and prolongs the service life of the hydrogen production electrolytic tank.

The invention provides a nickel-molybdenum-based rare earth element doped core-shell catalyst for hydrogen production by alkaline electrolysis of water as well as a preparation method and application of the nickel-molybdenum-based rare earth element doped core-shell catalyst, and belongs to the technical field of hydrogen production by alkaline electrolysis of water. Aiming at the problems that Mo is easy to dissolve out in an alkaline medium, the stability is poor, the catalyst depends on a substrate, the preparation is complicated and the like in the existing nickel-molybdenum alloy catalyst, a Ni4Mo alloy is constructed as a core through trace RE doping, coprecipitation and reducing atmosphere annealing; the surface is coated with a core-shell structure of RE-MoO3-x rich in oxygen vacancies, a RE-MoO3-x shell layer accelerates water dissociation and generates a synergistic effect with a Ni4Mo core to drive a hydrogen intermediate to migrate to the core to realize efficient hydrogen evolution, and a formed Mo-O-RE bond can anchor Mo and inhibit the Mo from being dissolved out. When the catalyst is used for hydrogen production by alkaline electrolysis of water, the overpotential is as low as 53mV in 1M KOH under the current density of 10mA / cm < 2 >, the catalyst can stably run for over 300h, and the catalyst has high activity and high stability and is simple to prepare.

The invention relates to the technical field of hydrogen production, in particular to a control method and device for a water electrolysis hydrogen production system based on a swarm intelligence algorithm, and the method comprises the following steps: collecting real-time operation parameters of each electrolytic cell, gathering the parameters into a structured data table, and calculating and generating a comprehensive health score of the electrolytic cell. According to the method, various operation parameters of the electrolytic cell are collected in real time, and the comprehensive health score based on the real-time operation state of the electrolytic cell is established, so that the degradation degree and the operation reliability of the single electrolytic cell can be dynamically quantified, and optimization is performed in a targeted manner in the load distribution process, so that more refined power scheduling is realized; in the load distribution stage, the total input power is discretized into a plurality of standard power units, a distribution guide mechanism is dynamically established based on the comprehensive health score of the electrolytic cell, and intelligent iterative optimization of the overall efficiency of the electrolytic cell group is realized through path selection probability and guide value increment updating.

Systems and methods for generating hydrogen by electrolysis of water using electricity produced using a vortex generator that results in cavitation and implosion processes in a vortex. The vortex generator can produce conditions within the vortex generator that can allow deuterium molecules naturally occurring in water to acquire sufficient kinetic energy to overcome the Coulomb barrier so that their nuclei can get close enough to each other to undergo various nuclear reactions, discharging a large amount of nuclear energy at the microstate, imparting energy to the water, which can be used to drive a turbine to generate electricity, and the resulting electricity can be used at least in part for the electrolysis of water.

The invention relates to the technical field of water electrolysis hydrogen production, and particularly discloses a proton exchange membrane water electrolysis hydrogen production device, which comprises an electrolytic tank, a hydrogen generator, a proton exchange membrane and a hydrogen generator, the pre-compression heat exchanger is used for carrying out primary cooling on the hydrogen generated by the electrolytic cell, and the pre-compression heat exchanger is sequentially connected with a compressor, a gas-liquid separator and a precision filter; the after-compression heat exchanger is used for cooling the compressed hydrogen again and is connected with a hydrogen storage tank; raw material water used for electrolysis of the electrolytic cell sequentially passes through the after-compression heat exchanger and the before-compression heat exchanger to exchange heat with hydrogen, so that the problems of large compressor operation load, low energy efficiency and serious system heat energy waste of traditional electrolytic cell hydrogen production equipment are solved.

The invention relates to an A-site high-entropy double perovskite anode material and a preparation method and application thereof. The chemical general formula of the anode material is (Ln < 1 > < 0.2 > Ln < 2 > < 0.2 > Ln < 3 > < 0.2 > Ln < 4 > < 0.2 > Ln < 5 > < 0.2 >) A 'B2O5 + delta (wherein delta is greater than or equal to 0 and less than or equal to 1). Wherein Ln1 to Ln5 are five different lanthanide rare earth elements and jointly occupy the A site, and the A site elements are any five of Sm, Pr, Nd, La, Gd, Eu, Er, Dy, Te, Yb, Y and Sc; the A'site is composed of any two elements of Ba, Sr and Ca; and the B site is Co. According to the invention, the double perovskite structure can be effectively stabilized, the number of catalytic active sites of an OER reaction is increased, the TEC of a cathode is effectively reduced, the electro-catalysis ORR reaction activity is increased, the performance of hydrogen production by electrolysis of water of a single cell is improved, and the output stability of the cell is effectively enhanced.

The invention relates to the technical field of hydrogen production by electrolyzing water, and provides a preparation method of anode catalyst slurry of PEM electrolyzed water, slurry and a catalytic layer.The preparation method comprises the steps that S1, an anode catalyst, a first ionomer and a first solvent are mixed and dispersed, and first catalyst slurry is obtained; s2, mixing and dispersing a dehydrogenation catalyst, a second ionomer and a second solvent to obtain second catalyst slurry; the dehydrogenation catalyst is a carbon-supported noble metal catalyst; and S3, mixing the first catalyst slurry and the second catalyst slurry, and carrying out homogenization treatment to obtain the anode catalyst slurry. The method has the advantages that the effects of improving uniformity, improving mass transfer and reducing hydrogen in oxygen are achieved at the same time through the cooperative arrangement of the adding of the hydrogen elimination additive, the slurry preparation process steps and the like, and the performance and the safety of the membrane electrode are improved.

The invention belongs to the technical field of hydrogen production by water electrolysis, and discloses a device and a method for hydrogen production by alkaline water electrolysis enhanced by active ions regulated and controlled by a magnetic field. An anode magnetic flow channel and an anode non-magnetic substrate in the electrolytic cell are integrally designed and are combined to form an anode magnetic field functional bipolar plate, and the anode magnetic flow channel is formed. In the electrolysis operation process, the migration behavior and spatial distribution of iron ions dissolved in the electrolyte are actively regulated and controlled by applying an external magnetic field to the anode region, so that the iron ion concentration of the electrolyte phase is not increased, and the main body structure and material system of the existing industrial electrolytic cell are not changed; and the dissolved iron ions are directionally enriched on an anode interface. Through the regulation and control, relatively high dynamic iron active site coverage can be maintained on the surface of the anode, the polarization loss of oxygen evolution reaction is reduced, and the efficiency and stability of the process of hydrogen production by alkaline water electrolysis under the conditions of high current density and wide load operation are improved.

The utility model relates to the field of electrolyzed water, and provides a catalyst coated membrane structure, a membrane electrode and a device for producing hydrogen by electrolyzing water, the catalyst coated membrane structure comprises a proton exchange membrane, a cathode catalyst layer and an anode catalyst layer, the cathode catalyst layer and the anode catalyst layer are respectively arranged on two sides of the proton exchange membrane, and the anode catalyst layer is arranged on the proton exchange membrane. And a hydrophobic hydrogen-resistant layer is arranged between the proton exchange membrane and the cathode catalyst layer. The method has the advantages that the hydrogen transmittance is reduced, so that the concentration of hydrogen in anode side oxygen is reduced, the explosion risk is reduced, and the safety coefficient during operation of the electrolytic cell is improved. In addition, expensive metal and metal oxide catalysts are not used in the scheme, so that the cost of the catalyst coating film is reduced while the hydrogen resistance effect is achieved. And when the hydrogen passing ability is reduced, normal proceeding of other mass transfer is guaranteed, the water electrolysis hydrogen production device still has high performance under the condition that the hydrogen content in the anode side oxygen is low, and the safety of an electrolytic cell during operation is improved.

The invention belongs to the technical field of carbon neutralization, and discloses a synergistic efficient low-carbon electrolysis water and total-oxygen blast furnace coupled low-carbon steel coproduction system. Comprising an electrolyzed water system; a blast gas inlet of the total-oxygen blast furnace system is connected with an oxygen outlet of the electrolyzed water system, and the total-oxygen blast furnace system is used for receiving oxygen to generate top circulating coal gas rich in carbon monoxide and carbon dioxide; an inlet of the coal gas purification system is connected with a circulating coal gas outlet of the total-oxygen blast furnace system; a first inlet of the methanol synthesis system is connected with a hydrogen outlet of the water electrolysis system, a second inlet of the methanol synthesis system is connected with a purified gas outlet of the gas purification system, and the methanol synthesis system is used for receiving hydrogen and purified circulating gas to generate methanol; the circulating gas heating system is arranged in a circulating gas path between the gas purification system and the total-oxygen blast furnace system and is used for heating circulating gas returned to the blast furnace; an inlet of the flue gas decarburization system is connected with a combustion flue gas outlet of the circulating gas heating system, and the flue gas decarburization system is used for conveying carbon dioxide in the flue gas to the second inlet.

The present application provides a kind of green low-carbon biomass coupling molten salt energy storage system for preparing methanol, belongs to the field of methanol preparation system.The problem of methanol release gas and surplus biomass gas produced in the process of biomass gasification for preparing methanol needs to be treated is solved.New energy electricity is partly used for electrolysis of water, and partly as abandoned electricity into molten salt electric heater.Hydrogen produced by electrolysis of water enters catalytic synthesis tower, and oxygen is used for biomass gasification.Carbon monoxide, hydrogen and carbon dioxide produced enter catalytic synthesis tower, and methanol is synthesized in catalytic synthesis tower.Biomass, surplus biomass gas and formaldehyde release gas enter high-temperature high-pressure biomass fluidized bed boiler, and then superheated steam produced by high-temperature high-pressure biomass fluidized bed is used as a catalytic temperature heat source for producing methanol, and the remaining steam enters a power generation system for power generation to ensure stable power supply of the entire system.The high-temperature high-pressure steam produced for power generation can improve the unit efficiency.

The invention relates to the technical field of alkaline water electrolysis hydrogen production, and discloses a multi-parameter fusion gas-liquid separation effect online evaluation method, which comprises the following steps: acquiring alkali liquor mass fraction concentration, fluid temperature, actual mixing density and mass flow signals on a backflow alkali liquor pipeline of a gas-liquid separator in real time; dynamically calculating the theoretical density of the bubble-free sodium carbonate solution under the current working condition according to the mass fraction concentration of the alkali solution and the fluid temperature which are collected in real time; calculating the absolute deviation between the theoretical density and the actual mixing density; performing real-time noise level analysis on the mass flow signals; according to a comparison result of the absolute deviation and a preset density deviation threshold value; and outputting a separation result judgment result and executing corresponding alarm or interlocking control. The theoretical density of the bubble-free sodium carbonate liquid is dynamically calculated in the control unit in real time according to the online measured mass fraction concentration and temperature of the alkali liquid, and reliable separation result evaluation under the real-time concentration change working condition is achieved.

The invention relates to the technical field of renewable energy utilization and green chemical engineering coupling, and discloses an operation method and system for coupling renewable energy water electrolysis hydrogen production with green chemical engineering, and the operation method comprises the following steps: at the beginning of each operation cycle, presetting a chemical engineering system operation load, and keeping the preset chemical engineering system operation load unchanged in the same operation cycle; acquiring power prediction data of wind and light power generation in each operation cycle, and calculating a water electrolysis hydrogen production yield prediction value according to the power prediction data and the water electrolysis hydrogen production comprehensive power consumption; the pressure of the hydrogen storage tank is collected in real time, the pressure of the hydrogen storage tank is divided into a plurality of intervals, and in each interval, the hydrogen consumption rate in the operation cycle of the chemical system is determined through different correction coefficients according to the pressure of the hydrogen storage system and the predicted value of the water electrolysis hydrogen production yield. In combination with the hydrogen storage condition and wind and light electricity power prediction, the chemical stable operation load in the next time period is set, the operation stability of a chemical system is improved, and the variable load operation frequency is reduced.

The present disclosure relates to a kind of renewable energy electrolytic water hydrogen synthesis ammonia system synergic control method and device, the method includes: according to the predicted power generation of target renewable energy electrolytic water hydrogen synthesis ammonia system corresponding, determine its corresponding full-day multi-period simulated hydrogen production power, and full-day multi-period simulated ammonia production power;Real-time monitoring is carried out to target renewable energy electrolytic water hydrogen synthesis ammonia system, determines its corresponding real-time power generation and real-time hydrogen inventory;According to real-time power generation, real-time correction adjustment is carried out to full-day multi-period simulated hydrogen production power, determines full-day multi-period real-time hydrogen production power;According to real-time hydrogen inventory, real-time correction adjustment is carried out to full-day multi-period simulated ammonia production power, determines full-day multi-period real-time ammonia production power.The embodiment of the present disclosure can realize the multi-time scale synergic control optimization of renewable energy electrolytic water hydrogen synthesis ammonia system, reduce the abandonment rate of renewable energy, improve energy utilization and system benefit and stability.

The present invention relates to an exothermic process for producing metal oxides or metalloid oxides, comprising introducing metal and / or metalloid precursors into a flame formed by burning a gas mixture comprising oxygen and hydrogen, at least a portion of the hydrogen being obtained from the electrolysis of water or an aqueous solution using electrical energy obtained at least in part from a renewable energy source, and at least a portion of the thermal energy of the flame being transferred by at least one exchanger to a first heat transfer medium, thereby heating the first heat transfer medium to a maximum temperature in the range between 80°C and 150°C.

The application discloses an electro-catalytic oxidation system and method and an ecological joint treatment method for in-situ remediation of water body sediments, which utilizes an intelligent pulse power controller to perform intermittent pulse electro-catalytic oxidation on the bottom mud at the water bottom, generates hydroxyl radicals through in-situ catalysis of an anode to degrade organic pollutants of the bottom mud, generates micro-bubbles in the interstices of the bottom mud through the electrolysis of water to improve the oxidation-reduction potential, and further reserves time for the soluble pollutants in the interstitial water of the bottom mud to sufficiently diffuse to the surface of the electrode, so as to avoid energy waste caused by concentration polarization. Through reverse power supply, the polarity of the anode and the cathode is instantaneously reversed, trace amounts of acidic substances and gas generated through in-situ electrolysis are utilized to strip off the calcium and magnesium scale attached to the surface of the cathode, and manual cleaning and maintenance under water are realized. In combination with the planting of submerged plants on the treated bottom mud, ecological joint treatment is realized, the root system of the submerged plants is utilized to perform long-term ecological fixation and water purification on the treated sediments.

This invention discloses an enhanced long-life proton exchange membrane for hydrogen production via water electrolysis and its preparation method. The enhanced long-life proton exchange membrane for hydrogen production via water electrolysis comprises: a reinforcing material composed of ion exchange fibers, wherein the ion exchange fibers are made of a fluoropolymer with sulfonic acid groups on the side chains; a perfluorosulfonic acid resin, which forms a film on the reinforcing material for gas barrier and proton conduction; and a free radical quencher mixed in the perfluorosulfonic acid resin to capture generated free radicals and improve membrane durability. The thickness of the proton exchange membrane is 50-100 μm. The enhanced long-life proton exchange membrane for hydrogen production via water electrolysis prepared by this invention not only has good conductivity, hydrogen permeability, tensile strength, and water content, but also exhibits better dimensional stability and superior durability.

1. The name of the design product: electrolytic water hydrogen production instrument. 2. The use of the design product: electrolytic water hydrogen production in the field of new energy technology. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application discloses a catalyst for a hydrogen production device for electrolysis of water by a proton exchange membrane and a preparation method and application thereof, the catalyst is manganese ruthenium metal oxide nanoparticles loaded on a conductive network of nitrogen-doped carbon nanotubes grown on a carbon cloth, and the mass ratio of manganese to ruthenium is 5-9:1-5; the nitrogen-doped carbon nanotubes have excellent conductive performance, the fine reticular structure is beneficial to more attachment of active substances, and the nitrogen-doped carbon nanotubes also have a high specific surface area and a stable three-dimensional structure, so that a good precursor is provided for subsequent hydrothermal growth of manganese ruthenium metal oxide, and the agglomeration of nanoparticles is avoided; PECVD makes the manganese ruthenium metal oxide nanoparticles more dispersed and uniform, further improves the specific surface area, exposes more active sites, and improves the catalytic activity; the interaction has greater conductive electron performance, and the basic skeleton of the manganese ruthenium metal oxide can also provide conditions for mass transfer of electrolysis of water, so that the electrode catalyst provides a larger channel for electron transfer.

The invention provides a low-platinum catalyst, a preparation method and application of the low-platinum catalyst in water electrolysis hydrogen production. Dispersing melamine and cyanuric acid in a certain proportion in absolute ethyl alcohol, adding the transition metal precursor solution, continuously stirring, heating, continuously reacting, cleaning, filtering, drying and grinding to obtain first solid powder; the first solid powder is placed in inert gas for carbonization treatment, and second solid powder is obtained; and dispersing the second solid powder in deionized water dissolved with a noble metal precursor, stirring for reaction, cleaning, filtering and drying to obtain the low-platinum catalyst. And the content of Pt in the catalyst is 0.1-10 wt%. The prepared low-platinum catalyst has excellent hydrogen evolution performance, the usage amount of precious metal can be effectively reduced, and the utilization efficiency of the precious metal is improved; the preparation method is simple in preparation procedure and relatively low in cost, can realize batch preparation, and has excellent market value and economic value.

This invention provides an ozone water dispersing device in which the anode and cathode are less susceptible to damage when an electrolysis unit with an anode and a cathode is used to generate ozone water. The ozone sprayer (1) comprises: a rain outlet (40) that discharges ozone water containing ozone in a rain-like manner and a mist outlet (50) that discharges ozone water in a mist-like manner; a water storage container (21); an electrolysis unit (23) having a flow path with an anode and a cathode and electrolyzing water flowing through the flow path to generate ozone water; a pump (22) that draws water from the container (21) and delivers it to the rain outlet (40) and the mist outlet (50) through a flow path (131); and a control unit that controls the electrolysis unit (23) and the pump (22). The control unit energizes the anode and cathode after a second time elapsed since the pump (22) begins operation.

The present application relates to the technical field of hydrogen production by electrolysis of water, and particularly relates to a PEM water electrolysis system with waste heat recovery and temperature difference power generation closed loop hydrogen production, which comprises a PEM electrolysis cell unit, an array type temperature field monitoring unit, a partition adaptive TEG waste heat recovery unit and a dynamic contact thermal resistance adjusting unit; the array type temperature field monitoring unit is embedded in the bipolar plate of the PEM electrolysis cell unit, and is used for collecting temperature and heat flux density data of each region of the electrolysis cell; the partition adaptive TEG waste heat recovery unit comprises multiple groups of independently controllable TEG thermoelectric modules, is attached according to the heat flux density partition of the electrolysis cell, and is thermally coupled with the waste heat loop of the electrolysis cell; and the dynamic contact thermal resistance adjusting unit is arranged between the TEG thermoelectric module and the bipolar plate. In the present application, the dual effects of local hot spot inhibition of the electrolysis cell and maximization of waste heat recovery efficiency are achieved, and the coupling imbalance problem between the local temperature field of the PEM electrolysis cell and the TEG waste heat recovery in the prior art is solved.

The invention relates to the technical field of electrolytic water platinum-based catalysts, in particular to a preparation method of an electrolytic water platinum-based catalyst, which comprises the following steps: S101, carrier pretreatment: carrying out acid treatment on a carbon carrier to obtain a defect-rich carbon carrier; s102, reacting: mixing an alkali solution, a chloroplatinic acid solution and the treated carbon carrier slurry in proportion, and reacting to obtain a mixed solution of a platinum-carbon catalyst and alcohol; and S103, filtering and drying: filtering the mixed solution of the platinum-carbon catalyst and the alcohol, and drying to obtain the dried platinum-carbon catalyst. The platinum-carbon catalyst prepared by the method has relatively high electrochemical activity, relatively good dispersity and relatively high metal utilization rate.

The utility model discloses a kind of Faraday electrode for electrolytic pure water, it is related to Faraday electrode technical field, including cathode and anode, cathode and anode are all adopted spiral structure, and cathode and anode are adopted by screwing between, two electrodes are all set as spiral structure, and two screwing installation, increase the surface area of electrode and reduce electrode spacing, reduce solution resistance value between electrode, improve electrolytic efficiency, to be used for electrolysis of pure water, while setting limit buckle, the fixation of two connecting pieces and the stability of spacing are realized.

The application discloses application of a titanium carbide loaded osmium metal hydrogen evolution and deuterium evolution catalyst in water electrolysis separation of hydrogen isotopes, the carrier of the hydrogen evolution and deuterium evolution catalyst is titanium carbide, the active component is osmium metal loaded on the carrier, and the loading amount of the osmium metal is 7-15% of the mass of the carrier. The hydrogen isotope separation efficiency is improved by improving the composition and structure of the hydrogen evolution and deuterium evolution catalyst. The osmium metal is loaded on the titanium carbide base, the hydrogen evolution selectivity is improved and the energy consumption is reduced through strong mutual action of the metal-carrier.

The invention relates to the technical field of water electrolysis hydrogen production post-treatment, and discloses a water electrolysis hydrogen production molecular sieve drying tower adsorption mass transfer leading surface positioning method, which comprises the following steps: synchronously collecting bed axial temperature distribution vector, inlet gas flow and moisture content; calculating theoretical total adsorption heat release power serving as global physical constraint according to the inlet working condition; on the basis of the actually measured temperature field and preset model parameters, adsorption heat source distribution is preliminarily estimated through an inversion algorithm, an integral result is compared with theoretical power, the model parameters are automatically adjusted until deviation convergence, and then the corrected parameters are utilized to calculate a real adsorption heat source intensity field; and finally, analyzing the heat source field, and calculating a spatial second derivative of the heat source field to accurately identify the mass transfer leading edge position and the mass transfer area length. According to the method, the self-adaptive model with double constraints is constructed, so that real-time accurate positioning of the mass transfer leading edge surface and quantitative evaluation of the health degree of the adsorbent are realized, and the predictability, reliability and economical efficiency of operation are improved.

The application belongs to the field of electrocatalysis, and particularly relates to application of a RuSe2-CoTe / NC structure catalyst in electrolysis of water for hydrogen evolution under alkaline conditions. A MOF precursor is synthesized by a hydrothermal method, and then Te elements are introduced into the material by an anion exchange method. RuSe2 and the precursor containing Te elements are compounded by a hydrothermal method, and finally the MOF material is pyrolyzed into a carbon material, and the RuSe2-CoTe / NC electrocatalyst is obtained. The nitrogen-doped carbon material derived from the MOF material provides good conductivity and stability, and also increases active sites. The synergistic effect of RuSe2 and CoTe can further promote HER and improve the reaction performance. The synthesized RuSe2-CoTe / NC heterostructure catalyst has the advantages of simple synthesis operation, greenness and no pollution, and the catalyst has excellent electrolysis water hydrogen evolution performance and stability.