415 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 low-cost high-stability urease inhibitor and a preparation method and application thereof.The preparation method includes the steps that montmorillonite is modified with inorganic acid to obtain inorganic acid modified montmorillonite, then hydrogen ions in the inorganic acid modified montmorillonite are exchanged with a cationic surface active agent to obtain quaternary ammonium salt surface active agent modified organic montmorillonite, and the quaternary ammonium salt surface active agent modified organic montmorillonite is used for preparing the urease inhibitor. After montmorillonite is subjected to organic modification, the hydrophobicity is greatly improved, and the organic modified montmorillonite has hydrophilicity and hydrophobicity. The organic modified montmorillonite interacts with amino acid residues in a urease flap region due to the hydrophobic effect, so that the amino acid residues are gathered in the organic modified montmorillonite due to the hydrophobic effect, urease conformational change is caused, catalytic activity on urea is lost, and the organic modified montmorillonite has a remarkable urease inhibition effect, is stable in chemical property and non-toxic in material, and can be used for preparing a novel urease inhibitor. The fertilizer is easy to disperse in fertilizer and soil and low in price.

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.

To provide a hydrogen ion conductive multi-layer composite membrane having excellent durability, ion conductivity, and hydrogen permeation reduction effect.SOLUTION: The present invention provides a hydrogen ion conductive multilayer composite membrane comprising: inner reinforced membranes comprising a porous PTFE layer impregnated with an ionomer composition and outer reinforced membranes positioned on both sides of the inner reinforced membrane, wherein the outer reinforced membranes comprise a porous PTFE layer impregnated with an ionomer composition.SELECTED DRAWING: Figure 1

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 embodiment of the invention relates to a method for initiating in-situ polymerization of an electrolyte solution through electrochemical induction. A solvent of the electrolyte solution comprises cyclic ether molecules and halogen atom substituted ethylene carbonate molecules; the method comprises the following steps: carrying out constant-current charging on a battery to a set voltage, and carrying out constant-voltage charging for a specific time under the set voltage, so that halogen atoms of halogen atom substituted ethylene carbonate molecules are removed under the reduction potential of the negative electrode side of the battery to generate free radical sites, two molecular structures after halogen atoms are removed are mutually combined through the free radical sites to form a dimer, the dimer is migrated to the positive electrode side in an electrolyte solution, dehydrogenation reaction is carried out under the action of oxidation potential applied to the positive electrode side, and in-situ ring-opening polymerization reaction of cyclic ether molecules is initiated through removed hydrogen ions; therefore, in-situ polymerization solidification of the electrolyte solution is realized under the condition that a conventional initiator is not contained.

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 utility model belongs to the technical field of water purification, and discloses a water purifier. The water purifier comprises a machine shell and a hydrogen-rich module, the hydrogen-rich module comprises a cup assembly and a hydrogen-rich assembly, and a through hole is formed in the bottom of the cup assembly; the hydrogen-rich assembly is detachably arranged at the bottom of the cup assembly, the hydrogen-rich assembly comprises a reaction cavity and an electrode arranged in the reaction cavity, the through hole is communicated with the reaction cavity, and the electrode is used for ionizing water to generate hydrogen ions. The cup assembly and the hydrogen-rich assembly are detachably connected, so that the hydrogen-rich assembly can be independently replaced or maintained, the maintenance cost is reduced, and the use experience of a user is improved. A hydrogen-rich component of the hydrogen-rich module in the water purifier can be independently replaced, so that the maintenance cost is low; the hydrogen-rich module is located on the front side of the machine shell, the hydrogen-rich module is convenient to maintain, and the user experience is improved.

According to the method for co-production of the wet-process phosphoric acid and the iron phosphate through membrane separation, an acid-resistant nanofiltration membrane is adopted to perform first-stage membrane separation on the wet-process phosphoric acid, and a first-stage clear phase is obtained; performing second-stage membrane separation on the first-stage clear phase through an acid-resistant nanofiltration membrane to obtain a second-stage concentrated phase and purified acid; mixing the purified acid, the filter cake and water to perform crystal transformation reaction, filtering and drying slurry, and calcining a solid phase to obtain the anhydrous iron phosphate. According to the method, the wet-process phosphoric acid is subjected to membrane separation by using the two-stage acid-resistant nanofiltration membrane to obtain the purified acid and the concentrated acid, and the purified acid and the concentrated acid are both used as raw materials for producing the battery-grade iron phosphate, so that raw material waste is avoided, and atomic economy is realized. The membrane separation is simple in operation, low in cost and low in energy consumption, phosphorus combined with hydrogen ions is separated into purified acid through membrane separation, phosphorus combined with impurity ions is separated into concentrated acid, and phosphorus combined with the hydrogen ions contained in the concentrated acid is precipitated into a filter cake through auxiliary precipitation and ammonia neutralization to be used as a fertilizer.

The utility model discloses an electrochemical treatment system, which comprises a container filled with electrolyte. The cathode is placed in the container; the anode is placed in the container; the power supply is respectively connected with the anode and the cathode through wires; the active region of the anode is coated with a filler layer; the utility model has the innovation points that the anode is wrapped with the filler layer, so that hydrogen ions produced by the anode react with the material of the filler layer to the greatest extent, the neutralization effect of H < + > on OH <-> produced by the cathode is further relieved, the efficiency of an electrochemical induced precipitation technology is greatly improved, the energy consumption is remarkably reduced, and the regulation and control of the precipitation position of a product are facilitated.

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 provides a proton helium ion treatment device. The proton helium ion treatment device comprises an injector, an accelerator, a rotating rack, a treatment head, a beam distribution system and a six-dimensional treatment bed which are sequentially arranged in the conveying direction of a beam. The injector comprises a hydrogen ion source and a helium ion source which can be switched; the treatment head and beam distribution system comprises an integrated scanning magnet, a position ionization chamber, a dose ionization chamber, a ridge-shaped filter and a range shifter which are installed on a treatment head support and sequentially arranged in the beam conveying direction, and the integrated scanning magnet is used for beam deflection in the transverse X direction and the transverse Y direction at the same time. A cone beam CT system is further fixedly installed on the rotating rack, and precise positioning and positioning correction of a patient are achieved in combination with the six-dimensional mechanical arm treatment bed. The proton helium ion treatment device can meet the requirement for high precision of patient positioning in ion treatment, ion treatment with optional proton helium ions can be achieved, and the treatment system is more compact through the design of the integrated scanning magnet.

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 invention discloses a hydrogen conductivity electric regeneration ion exchange system, and relates to the field of hydrogen conductivity. The hydrogen conductivity electric regeneration ion exchange system comprises an EDI module main body, a sample injection valve, a filter, a measuring cell and a flow meter. According to the hydrogen conductivity electro-regeneration ion exchange system, a detected water sample enters the EDI module main body, cations are exchanged into hydrogen ions under the exchange action of cation exchange resin, the anode is subjected to an oxygen evolution reaction to generate the hydrogen ions, and the generated hydrogen ions move towards the cathode under the action of an electric field; in the operation process, the system continuously carries out cation adsorption-regeneration, the advanced electrodeionization technology is adopted, the cations in water vapor are efficiently removed, automatic regeneration of the EDI resin is achieved, dynamic balance is maintained, and manual regeneration of the resin is not needed.

The invention relates to the technical field of solar cells, and discloses a solar cell preparation method and a solar cell, and the solar cell preparation method comprises the steps: providing an initial fragmented cell sheet with a cross section; performing oxidation treatment on the cross section to form an oxide layer; forming a hydrogen-containing passivation layer on the surface, far away from the cross section, of the oxide layer; and performing hydrogen passivation activation treatment on the surface, far away from the oxide layer, of the hydrogen-containing passivation layer so as to release hydrogen ions in the hydrogen-containing passivation layer to the cross section, thereby forming a passivated fragmented battery piece. The cross section of an initial fragmented battery piece is subjected to oxidation treatment to form an oxidation layer, dangling bonds on the cross section are saturated, the passivation effect is improved, the surface, away from the oxidation layer, of a hydrogen-containing passivation layer is subjected to hydrogen passivation activation treatment, hydrogen ions in the hydrogen-containing passivation layer are released to the cross section, the damaged area of the cross section is passivated, and defects in the cross section are repaired. Therefore, the performance of the fragmented battery piece is improved.

The invention discloses a local platinum doping method for a fast soft recovery diode, and relates to the technical field of semiconductor manufacturing. According to the local platinum doping method for the fast soft recovery diode, hydrogen ions and helium ions are injected to form prefabricated atom vacancy defects, platinum atoms are induced to gather and stay in a prefabricated vacancy defect area, and local platinum atom doping is achieved. The performance advantages of traditional global platinum doping life control and local hydrogen / helium ion life control on the silicon-based fast recovery diode are organically combined, and prefabricated vacancy defects are flexibly formed at different depths through hydrogen ions and helium ions, so that precise local doping of platinum atoms is realized; meanwhile, the fast soft recovery diode has the performance advantages of good reverse recovery characteristic, high softness factor, low reverse recovery voltage change rate, good long-term reliability, low electric leakage, high device junction temperature and the like.

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.

The invention provides a semiconductor structure and a manufacturing method thereof. The semiconductor structure comprises a substrate, a channel layer, a barrier layer and a passivation layer which are sequentially stacked, the passivation layer comprises a first passivation layer and a second passivation layer, the first passivation layer is of a plurality of strip-shaped structures, the extending direction of the strip-shaped structures is the first direction, first grooves are formed between the strip-shaped structures, the second passivation layer at least covers the first grooves, and the consumption capacity of the second passivation layer to the two-dimensional electron gas is larger than that of the first passivation layer to the two-dimensional electron gas. According to the invention, the second passivation layer has high-concentration hydrogen ions, and the high-concentration hydrogen ions in the second passivation layer can be used for modulating the concentration of two-dimensional electron gas in the channel layer below the second passivation layer, so that different threshold voltages are formed in the channel layers below the first passivation layer and the second passivation layer, and the withstand voltage can be improved; and meanwhile, the decline of a transconductance curve can be slowed down when the drain current is relatively large, the transconductance flatness of the device is improved, and the linearity of the device is further improved.

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.

The present invention provides an electrochemical membrane reaction device and method for treating acidic wastewater, belonging to the field of wastewater treatment, particularly the field of acidic wastewater treatment. The membrane reaction device applies an electric field to the cathode and anode membrane electrodes through a power supply, generating hydroxide at the membrane cathode for neutralizing the acidic wastewater in the wastewater neutralization tank. Excess hydroxide can also combine with heavy metal ions to form hydroxide precipitation. At the same time, a water pump is used to extract the supernatant after the reaction to achieve the recycling of the brine. The membrane anode can electrolyze water to produce hydrogen ions, which are extracted by a water pump to obtain an acid solution. H2 and O2 precipitated by side reactions at the membrane cathode and membrane anode can also be collected by a gas collection device to achieve resource recycling. The reaction device can achieve acid recovery and heavy metal ion removal from acidic wastewater without the addition of external chemical reagents, while improving resource recovery and utilization rates. It has the advantages of simple and efficient treatment methods, simple operation, and high economic benefits.

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 relates to a circular tube type solid oxide fuel cell for methane dry reforming, and belongs to the technical field of solid oxide fuel cells. The cell is of a circular tube structure and is sequentially provided with a gas inlet inner cavity, an anode supporting body, a functional layer, an electrolyte layer, a cathode reaction layer, a gas outlet outer cavity and a shell from inside to outside in the direction perpendicular to the axial direction, and in an oxygen-free environment, methane and carbon dioxide mixed gas is introduced into the gas inlet inner cavity through a gas inlet; heating to enable the methane and carbon dioxide mixed gas to react on the functional layer to generate carbon monoxide and hydrogen ions, transmitting the hydrogen ions to the cathode reaction layer through the electrolyte layer, and reacting to generate hydrogen; in the reaction process, hydrogen and carbon monoxide production through methane dry reforming is realized, and electric energy is generated at the same time. A solid oxide fuel cell technology is combined with a methane dry reforming technology, so that electric energy can be generated on one hand, and hydrogen and carbon monoxide can be generated on the other hand.

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.

A semiconductor structure includes a substrate, a channel layer, a barrier layer, and a passivation layer sequentially stacked; the passivation layer includes first and second passivation layers, the first passivation layer has a plurality of strip-shaped structures, a first groove is formed between any two adjacent strip-shaped structures, the second passivation layer at least covers the first groove, and an ability of the second passivation layer to consume a two-dimensional electron gas is greater than that of the first passivation layer to consume a two-dimensional electron gas. A concentration of a two-dimensional electron gas in the channel layer below the second passivation layer is modulated by using the high-concentration hydrogen ion in the second passivation layer, so that a decrease of a transconductance curve at a relatively large drain current is slowed down to improve a transconductance flatness of a device, improving a linearity of the device.