275 results about "Hydrogen ion" patented technology

The invention discloses forest steppe fire extinguishing barrier foam and a preparation method thereof.The foam is prepared from 5%-20% of a material A, 0.5%-0.8% of a material B, 1.8%-3% of a coagulant and the balance water through a foam generation system; the material A is prepared from 1 to 10 parts of organic aggregate and 100 to 200 parts of inorganic aggregate; the material B is composed of 2-7 parts of a composite surfactant and 1-6 parts of a cross-linking agent; the coagulant is carbon dioxide gas. The inorganic aggregate is condensed under the action of hydrogen ions generated by dissolution of carbon dioxide to form colloidal particles, the colloidal particles are polymerized and crosslinked with the organic aggregate to form a gel skeleton of a three-dimensional network structure, the foam is converted into gel foam, and a heat-insulating and anti-burning barrier layer is formed on the surface of a combustible. The fire extinguishing agent is high in fire extinguishing efficiency, good in heat insulation effect and environment-friendly, and has wide application prospects in forest and grassland fire disasters.

The invention relates to a novel composite bipolar membrane for preparing low-carbon alcohol alkali metal salt and an electrodialysis process of the novel composite bipolar membrane, and belongs to the technical field of membrane separation and electrochemical synthesis. The composite bipolar membrane comprises a cation exchange layer, a middle catalyst layer and an anion exchange layer which are sequentially laminated and compounded, the process comprises the following steps: introducing a salt solution containing alkali metal ions into an anode chamber of a bipolar membrane electrodialysis system, and introducing a low-carbon alcohol solution into a cathode chamber; applying a direct-current electric field to the two sides of the composite bipolar membrane, so that the low-carbon alcohol is dissociated at the membrane interface to generate alkoxy ions and hydrogen ions; the alkoxy ions migrate to an anode chamber to be combined with the alkali metal ions to generate low-carbon alcohol alkali metal salt; the membrane material is high in adaptability, the membrane structure is good in stability, technological parameters are mature, and the system integration degree is high.

The invention discloses a method for determining the content of hydrogen ions in a chloroplatinic acid solution, and belongs to the technical field of analytical testing. In order to solve the problems that the chloroplatinic acid solution is yellow after being diluted and the manual titration end point is difficult to judge, a potentiometric titration method is adopted, and the end point is determined by measuring electrode potential mutation without depending on indicator color change. The method comprises the steps of test condition preparation, burette calibration, standard solution preparation and calibration, sample treatment and titration, result calculation and the like, a full-automatic potentiometric titrator is selected, the titration volume is controlled within the range of 10-15 mL, and a sodium hydroxide standard solution is used for sample titration after calibration. The relative standard deviation of the determination result is less than 0.5%, the adding standard recovery rate is between 96.3% and 103.1%, and the method has the characteristics of high analysis speed, high accuracy and good stability, is suitable for accurate detection of hydrogen ions in chloroplatinic acid production and quality inspection, and effectively solves the defects of the traditional method.

The preparation method comprises the following steps: mixing and stirring polyvinyl alcohol and deionized water, cooling, adding glycerol and hyaluronic acid, stirring, adjusting the pH value to be acidic, cooling, adding a modified additive, stirring, injecting into a mold, repeatedly freezing and thawing, and carrying out vacuum drying to obtain the anti-wrinkle and anti-aging polymer hydrogel mask. In the using process of the hydrogel mask, when the internal modified additive makes contact with the skin surface, due to the weak acidity of the skin, an iron organic frame structure on the surface of the modified additive is attacked by hydrogen ions, coordinate bonds of the modified additive are damaged, and a skeleton is partially or completely dissociated; the active substances can be slowly released under the action of the modified additive, advanced oxidation caused by too fast release of the active substances is prevented, and the modified additive also contains a nano silicon dioxide structure, so that the mask has certain air permeability, the strength, elasticity and toughness of the mask are improved, and the mask cloth is prevented from being easily torn.

The invention relates to the technical field of waste hydrogenation catalyst treatment, and discloses a recovery method of active metal in a waste hydrogenation catalyst, a preparation method of a residual oil hydrogenation catalyst and application of the residual oil hydrogenation catalyst, and the method comprises the following steps: (1) leaching the waste hydrogenation catalyst by using an acid solution to obtain a leachate; (2) the concentration of hydrogen ions in the leachate is adjusted to be 0.05-2 mol / L, then the leachate is in contact with a first extraction agent, washing and reverse extraction are conducted, and a Mo solution is obtained; (3) adjusting the pH value of the first raffinate to 1-2.1, then contacting the first raffinate with a second extraction agent, and then carrying out washing and reverse extraction to obtain an Al solution; and (4) adjusting the pH value of the second raffinate to 2.2-3.5, then contacting the second raffinate with a third extraction agent, and then carrying out washing and reverse extraction to obtain a Ni and / or Co solution. The method can realize hazardous waste resource utilization, and can significantly reduce the production cost of the hydrogenation catalyst.

The invention relates to the technical field of wastewater treatment, in particular to a multi-stage treatment method and system for lead smelting wastewater. The method comprises the following steps: acquiring water quality data of the multi-source lead-acid storage battery smelting wastewater, and based on the water quality data, analyzing to obtain a battery wastewater multiphase feature set; on the basis, the information of the stabilized intermediate water body is obtained by dynamically adjusting the hydrogen ion concentration, breaking a complexing structure and preferentially separating fluoride; on the basis, the antimony valence state and the antimony concentration are monitored in real time, the oxidizing agent type and the reaction intensity are matched in a self-adaptive mode, oriented efficient conversion of antimony is achieved, and low-antimony pre-sedimentation water outlet information is obtained; on the basis, according to the dynamic proportion of the inlet water hydrogen ion concentration to the lead and antimony ions, a precipitation path control instruction is automatically switched, a purified water body with lead and antimony synchronously and deeply removed is obtained, and a lead smelting wastewater multi-stage treatment log is output. Harmful pollutants in the lead smelting wastewater process are efficiently removed, the method adapts to water quality fluctuation, consumption reduction and cost saving are achieved, compliance treatment of wastewater is achieved, and environment-friendly and economic values are achieved.

The present application belongs to a kind of medical radioisotope preparation field, specifically related to a kind of method for extracting lead-212 and bismuth-212 in thorium-232 decay chain, solution containing thorium-232 decay chain material is passed through anion exchange resin column, the solution containing thorium-232 decay chain material includes halogen ion, and the concentration of hydrogen ion in the solution containing thorium-232 decay chain material is greater than 0.01mol / L, lead-212 and bismuth-212 are absorbed by anion exchange resin column, and other nuclides directly pass through anion exchange resin column and are not absorbed, lead-212 and bismuth-212 are desorbed from anion exchange resin column by elution reagent, and lead-212 and bismuth-212 are separated and extracted;The present application can extract lead-212 and bismuth-212 simultaneously, and the extraction speed is fast, the purity is high, and the product is not easy to cause organic pollution.

The invention discloses a non-aqua regia gold extraction agent and method for recovering precious metal from waste containing precious metal. The non-aqua regia gold extraction agent is composed of nitrate, metal chloride and weak acid, by precisely regulating and controlling the concentrations of nitrate, chloride ions and hydrogen ions in the non-aqua regia gold extraction agent, the precious metal in the waste containing the precious metal can be subjected to green, efficient and selective oxidation leaching under the normal temperature condition, the precious metal ions in the leaching solution are subjected to reduction operation, and therefore the recovery rate of the precious metal in the waste containing the precious metal is improved. And a pure noble metal product can be obtained. Compared with a traditional aqua regia method, the method has the advantages that strong acid reagents such as concentrated nitric acid and concentrated hydrochloric acid are not used, corrosion to equipment and operation risks are remarkably reduced, and secondary emission of harmful gas is avoided. The method has the remarkable advantages of being environmentally friendly, easy and convenient to operate, mild in reaction condition, low in equipment requirement, high in leaching rate and the like, is suitable for large-scale and industrial production, and has wide application prospects and commercial value in the field of precious metal recovery.

The embodiment of the application provides a kind of mineral dissolution precipitation simulation model construction method, device and equipment, it is related to oil and gas field development field, the method is by obtaining shale mineral image and dividing boundary grid, the spatial position of solid-liquid reaction interface is clear, secondly, the calculation formula of net reaction flux is determined by combining reactant property parameter and preset rate reaction rule, the consumption of hydrogen ion of unit area solid-liquid interface is quantified, the two reactions of dissolution and precipitation are distinguished by the positive and negative of net reaction flux, then the volume source term representing the hydrogen ion consumption intensity of unit grid volume is derived based on net reaction flux, then the volume source term is integrated into the preset distribution function evolution equation to obtain the simulation model, the hydrogen ion migration process and the mineral dissolution and precipitation process caused by hydrogen ion are integrated into the same simulation system to operate synchronously, eliminate the simulation deviation caused by only single simulation mineral dissolution in prior art, improve the accuracy of mineral dissolution and precipitation simulation.

There is provided a composition for a semiconductor process, the composition comprising silica particles, and the composition having a value of 6.30% to 9.60% according to Formula 1. Further, a composition for a semiconductor process is provided, the composition comprising silica particles, and having a value of greater than 5.80% and less than 8.80% according to Formula 2. Further, provided is a method for preparing a composition for a semiconductor process, the method comprising: a step (a) of stirring an aqueous dispersion solution of silica having a hydrogen ion concentration (pH) in the range of 4.0 to 5.5; a step (b) of introducing a silica surface modifier containing an aminosilane component when the temperature of the aqueous silica dispersion solution is 25 DEG C or more and less than 40 DEG C; (c) introducing a hydrogen ion concentration (pH) regulator into the aqueous silica dispersion solution into which the silica surface modifier has been introduced; and (d) stirring the aqueous silica dispersion solution into which the hydrogen ion concentration (pH) regulator has been introduced so that the final reaction temperature is within the range of 50 DEG C to 65 DEG C. Further, a method of manufacturing a semiconductor device using the composition for a semiconductor process is provided.

The invention belongs to the technical field of air purification, particularly relates to multi-stage cavity type air inactivation equipment, and aims to solve the problems that existing equipment wastes heat energy, is poor in airflow regulation and control and is easy to saturate activated carbon. The equipment comprises a machine shell, and a heat exchange section, a radiation sterilization section, a high-temperature inactivation section and a control unit are arranged in the machine shell; two high-temperature inactivation cavities connected in series and a wind power path regulation and control structure are arranged in the high-temperature inactivation section, and the air flowing path can be adjusted according to the airflow velocity; a radiation sterilization chamber, a light hydrogen ion generator and an activated carbon filter layer fixed on rotating blades are arranged in the radiation sterilization section, and the rotating blades can drive the filter layer to turn over for regeneration; the heat exchange section adopts an inner and outer double heat exchange tube structure, the heat exchange efficiency is improved by matching with a spiral guide vane and a radiating fin, the equipment realizes the effects of efficient inactivation, energy consumption reduction and maintenance cost reduction through the design of multi-stage collaborative sterilization, dynamic airflow regulation and control, heat energy recovery and activated carbon regeneration, and is suitable for various scenes with higher requirements on air purification.

A hydrogen storage alloy-based all-solid-state pH sensor is disclosed, comprising a counter electrode, a working electrode, a reference electrode, and a flexible substrate. The counter electrode is a platinum electrode, the working electrode is a hydrogen storage alloy electrode, the reference electrode is a silver / silver chloride electrode, and the flexible substrate is PET. Using the hydrogen-storage titanium-iron alloy electrode as the working electrode and an Ag|AgCl electrode as the reference electrode, the potential of the test solution is measured, and the pH value of the test solution is obtained through a standard curve. This invention explored the optimal ratio of titanium and iron elements through a series of experiments, enabling the sensor to simultaneously achieve both accuracy and stability. While ensuring good hydrogen ion response, optimal stability is obtained by adjusting the titanium-iron element ratio, making it suitable for long-term real-time online in vivo pH detection.

This invention belongs to the field of optical functional thin film materials, specifically relating to a silicon-oxygen-aluminum ternary composite optical coating material and its preparation method. Addressing the problem in existing technologies of achieving high transmittance, high hardness, and corrosion resistance synergistically within a single ternary material system, this invention utilizes a single-crystal thin film with a completely ordered single-phase structure epitaxially grown on a MgAl2O4 spinel single-crystal substrate, co-doped with transition metal ions and protons. Employing a combined laser molecular beam epitaxy and low-temperature proton implantation technique, alternatingly ablates the silicon target, aluminum target, and doped target, and simultaneously irradiating with a low-energy hydrogen ion beam under ultra-high vacuum, atomic-level epitaxial growth and in-situ proton embedding are achieved, resulting in a unified high transmittance, high hardness, and corrosion resistance.

This invention discloses a purification method for silicon-containing N-methylpyrrolidone, comprising: using silicon-containing industrial-grade N-methylpyrrolidone as raw material, sequentially performing dehydration, particle removal, organic impurity removal, treatment with a cation exchange resin capable of dissociating hydrogen ions, treatment with a carbon remover, flocculation with an anionic flocculant, treatment through a reverse osmosis membrane, treatment with an anion exchange resin capable of dissociating basic groups, treatment with a cation exchange resin capable of dissociating hydrogen ions, and filtration with a nanoscale filter cartridge; the N-methylpyrrolidone product prepared by this invention has a weight content ≥99.95%, color APHA <5, moisture ≤50ppm, Si ≤50ppt, and dust particles (>0.2μm) <200pcs / mL, meeting the requirements of semiconductor device manufacturing processes, easily achieving continuous operation, safe operation, stable product quality, and suitable for industrialization.

The application discloses a built-in radio frequency antenna for a radio frequency negative hydrogen ion source and a manufacturing process, the radio frequency antenna has 2.5-3.5 turns, and the average loop diameter is 58mm; the coating of the built-in radio frequency antenna is an enamel structure, when the enamel structure simultaneously satisfies the conditions that the coating thickness is 0.6-0.7mm, the relative dielectric constant is less than 30, and the coating resistivity is greater than 45000Ω.cm, the warping voltage is close to 0; the process method comprises the following steps: manufacturing a sheet-shaped porcelain enamel; covering layer dipping; drying the copper antenna with the covering layer; firing the finished product; putting the dried copper antenna with the glaze into a melting furnace for firing and heat preservation; taking out the finished product and cooling to normal temperature. The steps (2) to (4) are repeated until the thickness of the glaze layer reaches about 0.6-0.7mm. The application effectively solves the problem of plasma back-bombing antenna, and the enamel coating is adopted, so that the cost is low, the manufacturing is simple, the material is solid, and the adhesion, impact resistance and thermal shock resistance are excellent.

The invention discloses an Apopsin3 mutant and a method for regulating an environment in a plant cell to be acidic, and belongs to the technical field of pH regulation in the plant cell. The regulation and control method comprises the following steps: mutating 83rd and 120th amino acids of the light-operated hydrogen ion pump protein Apopsin3, converting into hydrogen ion channels, expressing the hydrogen ion channels on a cell membrane in a targeting manner, and stimulating with green light of 40-500 [mu] W / mm < 2 > and 520-560 nm so as to regulate the pH in the cell to be acidic. By adopting the cell specific promoter and performing site-specific mutagenesis modification on the specific hydrogen ion pump, accurate pH regulation and control on specific cells or organelles can be realized. An Apopsin3 (FARH) gene is fused with a cell membrane targeting sequence, and under the stimulation of specific light, only the pH of cytoplasm is obviously changed, and the pH of other cell regions is not influenced.

The application provides a magnetic field synergistic regulation reinforced micro-electrolysis sewage treatment method and equipment, which comprises the following steps: adjusting the hydrogen ion concentration index of sewage to obtain adjusted sewage, pumping the adjusted sewage to the water inlet of a micro-electrolysis reaction tower by using a lifting pump, making the adjusted sewage pass through the aeration device of the aeration area to be aerated, and then entering the micro-electrolysis reaction tower through a supporting layer; the magnetic field generating device is composed of the enameled copper wire coil wound outside the micro-electrolysis reaction tower and the iron-carbon micro-electrolysis filler in the tower, a magnetic field is formed in the micro-electrolysis reaction tower, and the size and direction of the magnetic field are adjusted in real time according to the water quality of the effluent; the adjusted sewage treated by the magnetic field is overflowed to the water collecting tank through the trapezoidal overflow weir, the water quality of the effluent is detected in real time by the online water quality monitoring system below the effluent outlet; the hydrogen ion concentration index of the inlet water, the magnetic field parameters and the aeration amount are adjusted in linkage to regulate the micro-electrolysis reaction conditions. The application improves the automation level and treatment efficiency of sewage treatment.

The invention discloses a hydrogen ion implantation process, a preparation method of a semiconductor device and the semiconductor device. The hydrogen ion implantation process comprises the following steps: executing hydrogen ion implantation by at least one hydrogen ion implantation process program; each hydrogen ion implantation process program comprises a combination of implantation energy and N different implantation angles, and N is an integer greater than 1. In the process, each hydrogen ion implantation process program is matched with different implantation angles through one piece of implantation energy to realize different hydrogen ion implantation depths, so that one hydrogen ion implantation process program realizes the functions of a plurality of hydrogen ion implantation process programs, the productivity is improved, and the total process time is saved.

The invention provides a hydrogen interstitial doped strontium titanate material and a preparation method thereof, the hydrogen interstitial doped strontium titanate material is prepared by doping a hydrogen element into a strontium titanate single crystal through a solid-phase reaction, and the hydrogen element is introduced into a strontium titanate lattice interstitial site by using sodium borohydride as a hydrogen source. According to the hydrogen gap doped strontium titanate material disclosed by the invention, the carrier concentration is obviously increased, the absorption of the material in a range from visible light to infrared light is enhanced by doping, and the photon utilization rate is improved. Compared with heavy metal displacement doping and hydrogen ion gap doping, the carrier mobility is not damaged, environmental protection is easy, the cost is low, doping conditions are not harsh, and large-scale industrial production is easy.

Systems, components, methods, algorithms encoded in media, and techniques for localized hydrogen charging of a sample are described. A method of processing a workpiece in a focused ion beam system can include generating a plasma in an ion source gas comprising hydrogen. The method can include extracting a beam of hydrogen ions from the plasma. The method can include directing the beam toward a region of a workpiece, in accordance with a scan pattern. The method can include charging the region of the workpiece with hydrogen. In some embodiments, the method includes decomposing a hydrogen precursor using a charged particle beam, instead of directly irradiating the workpiece with a hydrogen focused ion beam.

The utility model relates to the related technical field of dehumidifiers, in particular to a dehumidifier with a photo-hydrogen ion purification function, which comprises a dehumidifier body, an air inlet pipe and an air outlet pipe are respectively mounted on two sides of the dehumidifier body, a purification box is mounted at the end of the air outlet pipe, and an S-shaped channel is formed in an inner cavity of the purification box by arranging a plurality of partition plates. A plurality of mounting holes are formed in the top end and the bottom end of the purification box at equal intervals, photo-hydrogen ion purifiers are mounted in the mounting holes in an inserted mode, the photo-hydrogen ion purifiers and the partition plates are distributed at intervals, dehumidified air can make full contact with all the photo-hydrogen ion purifiers when passing through the S-shaped channel, and the air purification effect is improved. The photo-hydrogen ion purifier can better purify dehumidified air, the overall purification effect is improved, and the photo-hydrogen ion purifier is convenient to disassemble and assemble and has higher practicability.

The utility model relates to a pH detection device and a wet etching system. The pH detection device comprises a mounting assembly used for being mounted in a target detection pipeline, the mounting assembly is provided with a containing cavity, and the mounting assembly comprises a liquid inlet and a liquid outlet which are communicated with the containing cavity; the pH detection module is supported in the accommodating cavity through the filler; and the monitoring module is in communication connection with the pH detection module and is used for acquiring the pH data detected by the pH detection module. Through the mode, the pH detection device can detect the concentration of hydrogen ions in the acid solution and further judge whether water enters the acid solution or not, so that the chamber with water leakage can be determined without shutdown and chamber disassembly.

The utility model discloses a gas ionization mechanism and coating equipment, relates to battery piece production technical field, include: ventilation cavity, first electrode plate, second electrode plate and power supply, the first side of ventilation cavity is connected with gas supply unit, gas supply unit supplies gas to the inside of ventilation cavity, the second side of ventilation cavity is equipped with the discharge port, the discharge port is equipped with the first electrode plate, second electrode plate and power supply. The first electrode plate and the second electrode plate are arranged parallel to the second side of the ventilation cavity and are respectively connected with two different electrodes of a power supply, and gas is ionized into a positive ion form after being introduced into a uniform electric field formed between the first electrode plate and the second electrode plate. The gas ionization mechanism and the evaporation mechanism are arranged in the shell, the gas ionization mechanism and the evaporation mechanism provide ionized hydrogen ions and gaseous aluminum oxide molecules to the interior of the shell at the same time so as to jointly participate in the coating reaction of the battery piece, and the coating quality of the battery piece is improved.

This invention discloses a method for controlling the polarization reversal characteristics of hafnium-based ferroelectric thin films through surface ion treatment, relating to the field of ferroelectric memory device technology. The method includes: providing a substrate; forming a hafnium-based ferroelectric thin film on the substrate; and after rapid thermal annealing of the hafnium-based ferroelectric thin film, introducing control ions onto the film surface through a surface ion treatment process to control the polarization reversal characteristics. The surface ion treatment process includes electrochemical treatment or plasma treatment, and the control ions include one or more of halide ions, hydrogen ions, hydroxide ions, sulfur-containing ions, and nitrogen-containing ions. This invention achieves effective control of the surface electric field distribution and polarization reversal barrier of the hafnium-based ferroelectric thin film through surface ion treatment, significantly reducing the coercive field and optimizing polarization stability, enabling ferroelectric domains to flip at lower voltages. This method is simple, low-cost, and compatible with CMOS processes, making it suitable for fabricating high-performance, low-power ferroelectric memory devices.

The application relates to the technical field of electrochemical detection, and specifically discloses an ammonium sulfate PH calculation method based on an electrochemical principle and a temperature compensation technology, which comprises the following steps: collecting a non-standard state electrode potential signal and an NTC thermistor real-time resistance signal of an ammonium sulfate solution to be measured; using an improved temperature fitting algorithm based on a temperature-resistance nonlinear relationship and an optimized fitting process to convert an actual thermodynamic temperature of the solution; combining the actual thermodynamic temperature to compensate the non-standard state electrode potential signal, eliminating the interference of temperature change on the potential measurement; and substituting the compensated electrode potential value and the thermodynamic temperature into a simplified expression of the Nernst equation to inversely solve the hydrogen ion concentration, and then obtaining the final PH value of the ammonium sulfate solution through negative logarithm operation. The method optimizes the temperature fitting precision and the electrode potential compensation adaptability, and improves the PH measurement deviation problem of the ammonium sulfate solution.

The utility model relates to an EDI electrode water inlet and outlet adapter, and belongs to the field of water treatment equipment. Comprising an anode multifunctional plate and a cathode multifunctional plate which are oppositely arranged, an exchange membrane group positioned between the anode multifunctional plate and the cathode multifunctional plate, an electrode water adapter for distinguishing water paths and a gas treatment device, hydrogen ions, oxygen, chlorine and corrosive gas generated by the reaction of the electrode water and the anode multifunctional plate are isolated outside the cathode multifunctional plate by the diaphragm and enter the gas treatment device from a second channel of the electrode water adapter in the water outlet hole under the action of pressure to be integrated; the degassed electrode water enters the space between the cation exchange membrane and the anion exchange membrane from the second channel of the electrode water adapter in the water inlet hole, passes through the resin plate and then flows out from the first channel of the electrode water adapter in the water outlet hole, so that when the electrode water sequentially flows through the anode and the cathode, corrosive gas and other gases in the water are well integrated; and water pollution of the water tank is not influenced after the polar water flows back, so that the water utilization rate is improved.

The present application relates to the technical field of pollution detection, in particular to a water body heavy metal chromium pollution detection method and system, the method comprising the following steps: obtaining the concentration of water body dissolved organic matter, hydrogen ion concentration, oxidation-reduction potential, temperature and initial hexavalent chromium concentration and normalizing, determining the reduction reaction rate constant according to the temperature and oxidation-reduction potential, predicting the reduction rate of hexavalent chromium, the theoretical reduction amount and the theoretical residual concentration, collecting the online electrochemical concentration and the unmanned aerial vehicle hyperspectral inversion concentration and performing difference verification, respectively correcting the electrochemical concentration and the hyperspectral concentration when there is data contradiction, and fusing the two types of correction results to judge the pollution state. In the present application, by establishing a hexavalent chromium natural evolution reference and combining multi-source observation consistency verification, the electrochemical underestimation caused by organic matter passivation and the hyperspectral overestimation caused by spectral background are identified, compensation correction and background stripping are completed, and the accuracy and reliability of chromium pollution detection in complex water bodies are improved.

The invention discloses a method and system for determining the hydrogen ion diffusion coefficient of high-viscosity acid liquor, and the method comprises the steps: building an acid liquor flow equation and an acid liquor concentration distribution equation based on the hypothesis of a parallel plate reactor, solving the two equations through the boundary conditions of the flowing process of the acid liquor in the reactor, and determining the hydrogen ion diffusion coefficient of the high-viscosity acid liquor. Forming a chart representing the mapping relation between the hydrogen ion diffusion coefficient and the acid liquor reaction speed by using the current analytical solution; the reaction speed of to-be-evaluated acid liquor is obtained by carrying out a fracture diversion trench acid liquor displacement experiment on the to-be-evaluated acid liquor, and the corresponding hydrogen ion diffusion coefficient is obtained by utilizing the chart. The method overcomes the limitation of a method for obtaining the hydrogen ion diffusion coefficient in the prior art on high-liquid-viscosity acid liquor.

The invention discloses a preparation method of a hexagonal boron nitride silicon-on-insulator substrate structure, which belongs to the technical field of semiconductor design and manufacture, and comprises the following steps: a first wafer and a second wafer are wafer silicon substrate bare chips, the surface of the first wafer is subjected to thermal oxidation treatment, and the surface of the second wafer is subjected to hexagonal boron nitride film deposition; performing hydrogen ion implantation on the first wafer to form a weakening layer below the surface thermal oxide layer, and performing ion implantation of one or two of carbon ions, germanium ions, nitrogen ions and boron ions to form a barrier layer between the weakening layer and the surface thermal oxide layer; performing hydrogenation surface treatment on the hexagonal boron nitride layer of the second wafer; removing the surface thermal oxide layer on the surface of the first wafer, and combining the surfaces of the first wafer and the second wafer; stripping the first wafer to form a top silicon film on the second wafer; and enabling the top silicon film to reach the required thickness through wet etching. Structural damage and charge scattering can be reduced, and device performance and stability are improved.

This invention provides a cell microenvironment stabilizer that captures hydrogen ions, its preparation method, and its application, belonging to the field of biomedical technology. The preparation method of this cell microenvironment stabilizer includes the following steps: (1) mineralizing CaCl2 with TGF-β1, catalase, and polyethylene glycol-polyglutamic acid block copolymer to obtain mineralized nanoparticles; (2) preparing hydrogel microspheres under freezing conditions using a microfluidic device, and then photocrosslinking the frozen hydrogel microspheres; (3) mixing the hydrogel microspheres with the mineralized nanoparticles to prepare the cell microenvironment stabilizer. This invention prepares a mineralized hydrogel microsphere, which, as a cell microenvironment stabilizer, can be used to block the NLRP3 cascade in chronic inflammation, capturing excess hydrogen ions through the mineralization layer to neutralize the acidic microenvironment. This micro / nano bioreactor based on hydrogel microspheres can effectively interfere with NLRP3 in the microenvironment of degenerated tissues from inside and outside the cells, inhibiting chronic inflammation.