161 results about "Anode oxidation" patented technology

The invention discloses a preparation method and application of a nickel-doped lead dioxide ozone catalytic anode, a titanium substrate is used as an anode, a titanium sheet is used as a cathode for anodic oxidation, an obtained titanium dioxide nanotube array is used as an anode, a titanium sheet is used as a cathode for secondary anodic oxidation, and the nickel-doped lead dioxide ozone catalytic anode is obtained. And putting the obtained titanium dioxide nanotube array electrode of the new oxide layer into a tubular furnace, calcining in an air atmosphere, taking the titanium dioxide nanotube array electrode of the transition layer as a cathode, taking a titanium plate as an anode, and performing electrochemical reduction in a formic acid solution to obtain the titanium dioxide nanotube array electrode of the transition layer. The obtained electrode with the high-conductivity titanium dioxide nanotube array transition layer serves as an anode, a titanium sheet serves as a cathode, electrodeposition is carried out in an acid electrodeposition solution to obtain a beta-PbO2 layer, and finally the Ti / TNAs / Ni-PbO2 anode is prepared, the anode is high in stability and long in service life and can work for a long time without affecting the catalytic activity of the anode, and the application range of the Ti / TNAs / Ni-PbO2 anode is wide. The method has a certain application prospect in the aspect of electro-catalytic ozone treatment of organic wastewater.

The invention discloses a rare earth element doped stainless steel oxygen evolution electrode and a preparation method thereof, and belongs to the technical field of electrode preparation. The preparation method of the stainless steel oxygen evolution electrode comprises the steps that stainless steel with impurities removed serves as an anode and is placed in an alkaline solution with the concentration being 7-12 mol / L, cyclic voltammetry is adopted, stainless steel treated through cyclic voltammetry is obtained, and the potential window is-0.3 V to 1.5 V; the stainless steel is placed in an alkaline solution with the concentration being 1-2 mol / L and serves as an anode for electrolysis, and anodic oxidation stainless steel is obtained; the anodic oxidation stainless steel is placed in a cerium ion solution, a cyclic voltammetry method is adopted, the stainless steel serves as an anode to be treated, and a stainless steel oxygen evolution electrode is obtained through electro-deposition; wherein the potential window is-1.5 V to 1.0 V (+ / -0.5 V). The preparation method is simple, the cost is low, large-scale preparation is easy, long-time, high-temperature and other complex preparation processes are not needed, and when the electrode is used as an electrode for electrolyzing oxygen evolution in water, the electrode has excellent catalytic activity and shows huge application prospects in large-scale industrial hydrogen production through water electrolysis.

The invention relates to a non-noble metal-based paired electro-catalysis method for producing formic acid by coupling cathode dehalogenation with anode formaldehyde oxidation, which realizes efficient dehalogenation removal of pollutants and generation of high-value products. The Co-CuxO nanowire electrode with excellent catalytic performance is synthesized through a simple method and serves as a cathode and an anode at the same time, and the purpose that the cathode removes halogenated pollutants and the anode oxidizes formaldehyde to produce formic acid at the same time is achieved. Co-CuxO promotes generation of H *, the performance of electroreduction dehalogenation is improved, and the removal rate of trichloroacetic acid can reach 92.1% or above. And moreover, the reaction energy barrier is reduced, the selectivity of formic acid generated by oxidizing anode formaldehyde is improved, and the formic acid selectivity and Faraday efficiency can reach 100%. A paired electro-catalysis system shows extremely stable and outstanding electro-catalysis performance in the aspect of converting wastes into value-added products, and the problems of poor anode utilization rate and high energy consumption in the current electro-catalysis dehalogenation reaction are solved.

A porous layer is arranged on the surface of the inner wall of a micro-channel in the micro-channel heat exchanger, and the porous layer is filled with a lubricating agent; and anodizing the inner wall of the micro-channel to obtain a porous layer. The invention further provides a preparation method of the ultra-smooth micro-channel heat exchanger, which comprises the following steps: taking the micro-channel heat exchanger as an anode, performing anodic oxidation treatment on the inner wall of the micro-channel, and preparing the porous layer on the surface of the inner wall of the micro-channel; and then the porous layer is filled with a lubricating agent, and the ultra-smooth micro-channel heat exchanger is obtained. The invention further provides application of the ultra-smooth micro-channel heat exchanger in electronic devices. The ultra-smooth micro-channel heat exchanger has good corrosion resistance and high boiling heat exchange efficiency.

The invention provides a method for removing nitrate in water by using a modified zero-valent iron aerogel electrocatalyst, which comprises the following steps: preparing a mixed solution of ferrous sulfate and sodium sulfide, preparing a sodium borohydride solution, mixing and magnetically stirring the mixed solution and the sodium borohydride solution to obtain black colloid, and finally obtaining vulcanized zero-valent iron aerogel, dispersing the obtained sulfurized zero-valent iron aerogel and a Nafion solution in absolute ethyl alcohol to prepare a catalyst mixed solution; potassium nitrate and potassium hydroxide are dissolved in a pure water solution to serve as electrolyte, a sulfurized zero-valent iron aerogel electrode is used as a cathode, a platinum sheet is used as an anode, a mercuric oxide electrode is used as a reference electrode, and an electrocatalytic reduction reaction is carried out by using a three-electrode system. The technology not only can improve the efficiency of water nitrate pollution treatment, but also conforms to the concept of green and low-carbon development, and has a wide environment application prospect.

The invention discloses an ultrasonic vibration auxiliary electrochemical mechanical thinning method and device for a large-diameter wafer, and belongs to the technical field of large-diameter semiconductor wafer thinning, and the device comprises a grinding system, an electrochemical system and an electrolyte circulating system. The grinding system comprises a micro-feeding unit, a main shaft rotating unit and an ultrasonic vibration unit, and the main shaft rotating unit and the ultrasonic vibration unit drive the cup-shaped grinding wheel to rotate and axially vibrate. The electrochemical system takes a cup-shaped grinding wheel as a cathode and a wafer as an anode, and an electrolyte is supplied between the cathode and the anode to generate electrochemical reaction. In the thinning process, the surface of the wafer is subjected to anodic oxidation modification to generate a modification layer easy to remove, meanwhile, the generated modification layer is removed by the grinding wheel, the grinding wheel with ultrasonic vibration facilitates chip removal and heat dissipation, circulation of electrolyte can be enhanced, and then the electrochemical modification effect is improved; the annular structure of the grinding wheel has better removal uniformity under the vibration condition, and efficient, high-precision and low-damage large-diameter wafer thinning can be achieved.

The invention discloses a preparation method of a membrane electrode for an acidic iron ion circulation auxiliary electrolytic hydrogen production system and application of the membrane electrode in low-power-consumption hydrogen production, and relates to the field of water electrolysis hydrogen production. The method comprises the following steps: 1, pretreating a substrate; 2, preparing catalyst ink; 3, preparing a cathode and an anode; and 4, hot-pressing and assembling. The membrane electrode used for the acidic iron ion circulation auxiliary electrolytic hydrogen production system serves as a working electrode to produce hydrogen in a proton exchange membrane electrolytic cell filled with an acidic electrolyte containing Fe ions with low power consumption, and Fe < 2 + > / Fe < 3 + > circulation promotes anodic reaction kinetics and reduces anodic oxidation potential, so that the water electrolysis energy consumption is remarkably reduced, and the hydrogen production efficiency is improved; the preparation method is simple and convenient, and the prepared membrane electrode is small in resistance and firm in interface bonding, has excellent electrochemical performance, is suitable for low-power-consumption hydrogen production of a PEM electrolytic cell in an acid system, and has wide application prospects.

The utility model is suitable for the technical field of anodic oxidation tanks, and provides an anodic oxidation tank with a lifting structure, which comprises a sewage pool for collecting splashed electrolyte, the electrolysis tank is arranged in the sewage pool and is used for storing electrolyte; the electric guide rail is fixed on the outer wall of the electrolysis tank and is used for assisting in adjusting the position of the base material; the electric telescopic rod is arranged on the electric guide rail and is used for assisting in adjusting the height of the base material; the supporting rod is mounted on the electric telescopic rod through a connecting plate; and the hook is movably hung on the supporting rod and is used for supporting a base material. According to the anodic oxidation tank with the lifting structure, the height of a base material can be conveniently adjusted, the position of the base material can be adjusted after machining is completed, the base material can be conveniently kept in a hoisting state for flushing, electrolyte residues are reduced, and meanwhile sewage can be prevented from being mixed into electrolyte.

The application relates to a substrate with micro-nano composite texture and a preparation method and application thereof, and belongs to the technical field of biological medicine. The preparation method comprises the following steps: S1, adopting a nanosecond laser to perform texture treatment on pretreated metal titanium, forming micro texture on the surface of the metal titanium, and obtaining micro texture metal titanium; S2, uniformly stirring ammonium fluoride in ethylene glycol, then uniformly stirring water in the ethylene glycol, and obtaining an electrolyte; S3, connecting the positive pole of a direct current power supply to the micro texture metal titanium as an anode, connecting the negative pole of the direct current power supply to a platinum electrode as a cathode, and performing magnetic field assisted anodic oxidation treatment on the micro texture metal titanium in the electrolyte, so that nano texture is formed on the surface of the micro texture metal titanium; and after cleaning and drying, a substrate with micro-nano composite texture is obtained. The substrate is applied to a drug-loaded coating of a metal implant, can realize micro-nano multi-scale cooperation, integrates the macrostructure advantage of the micron texture and the surface characteristics of the nanotube, and greatly improves the comprehensive performance of the drug-loaded coating.

The application discloses an aluminum electrolysis carbon anode anti-oxidation anticorrosion coating and a preparation method thereof. The coating comprises the following components in percentage by mass: a main component 30-40%, a secondary component 15-25%, a binder 10-15%, an anticorrosion additive 15-25%, and the balance is water. The main component comprises white corundum powder, red corundum powder and microcrystalline corundum powder. The secondary component comprises secondary component 1 and secondary component 2. The secondary component 1 comprises phlogopite, biotite and sodium mica. The secondary component 2 comprises potassium feldspar, sodium feldspar and calcium feldspar. The binder is sodium water glass and potassium water glass. The aluminum electrolysis carbon anode anti-oxidation anticorrosion coating is simple and convenient to prepare. After being coated on the carbon anode, the carbon anode in operation can be well protected. The weight loss rate of each sample is only about 0.8%, and the problems of anode oxidation and coating corrosion are effectively reduced.

The invention relates to an anode foil and a preparation method thereof. The preparation method comprises the following steps: sequentially carrying out pretreatment, primary formation treatment and secondary formation treatment on a corrosion foil; wherein the pretreatment comprises steam oxidation pretreatment, and high-temperature steam is adopted for carrying out steam oxidation treatment on the etched foil; the first-stage formation treatment comprises the step of carrying out first anodic oxidation on the pretreated corrosion foil in a first electrolyte; the first electrolyte comprises organic acid and organic ammonium salt; the second-stage formation treatment comprises the step of carrying out second anodic oxidation on the corroded foil subjected to the first-stage formation treatment in a second electrolyte, wherein the second electrolyte comprises organic acid and phosphate. The surface oxidation film performance of the anode foil is improved, the leakage current of the anode foil is reduced, and the service life of the anode foil is prolonged.

The application provides a metal-based needle tube and a preparation method and application thereof, and relates to the technical field of detection, and aims to solve the technical problem that the sampling needle is made of rigid material and cannot detect the solution property of the sample or reagent at the same time. The preparation method of the metal-based needle tube comprises the following steps: anodizing the needle tube as an anode in an electrolyte, taking a conductive wire as a cathode, arranging the conductive wire in the needle tube, and arranging the conductive wire coaxially with the needle tube; the voltage of anodization is 0.1V-50V, the temperature is 15-80 DEG C, and the time is 1-600 min; coating the wall surface of the needle tube after anodization with a uniform polymer film; the polymer is one of polytetrafluoroethylene, polydimethylsiloxane and polyethylene; and the metal is one of titanium, copper and stainless steel. The needle tube is used for sampling and detecting the concentration, type or pH value of the liquid at the same time.

The invention discloses anode slurry as well as a preparation method and application thereof. The invention provides a preparation method of anode slurry C. The preparation method comprises the following steps: step 1, mixing an iridium catalyst, perfluorinated sulfonic acid resin dispersion liquid and a solvent to obtain slurry A; step 2, adding a platinum precursor into the slurry A to obtain slurry B; and step 3, the slurry B reacts at 50-90 DEG C to prepare anode slurry C. According to the method, the water-soluble platinum precursor is directly added into the anodized iridium oxide catalyst slurry, so that the dispersity of platinum and the capability of eliminating hydrogen in oxygen of platinum per unit mass are remarkably improved.

This invention provides an electropolymer-modified aluminum current collector, its preparation method, and its application, relating to the field of aluminum foil current collector technology. By modifying the current collector surface, it primarily addresses the interface problem between the current collector and the active material, thereby improving the performance of lithium-ion batteries. This invention uses an aluminum foil current collector as the anode, a graphite plate as the cathode, and an acidic solution of a conductive polymer monomer as the electrolyte. Anodizing electropolymerization is performed using a constant current or constant voltage method, followed by washing and drying to obtain the electropolymer-modified aluminum current collector. The conductive polymer monomer is at least one of aniline, thiophene, and pyrrole; the concentration of the conductive polymer monomer in the electrolyte is 0.1-1.0 mol / L; and the polymerization time is 5-10 min. This invention effectively reduces the contact resistance between the current collector and the active material, improves the bonding strength between the coating and the substrate, and enhances the corrosion resistance of the current collector, showing promising application prospects.

The invention relates to a method for sealing a nickel-free zirconium salt oxide film on an aluminum alloy profile, which mainly solves the problem of poor sealing effect in the prior art. The method comprises the following steps: 1) suspending the aluminum profile in sequence through a suspension assembly and subjecting it to surface pretreatments of sandblasting, oil removal, water washing, alkali washing, water washing, pickling, and water washing; 2) suspending the aluminum profile in an electrolytic tank through the suspension assembly and performing anodizing; 3) air-drying the aluminum profile treated in step 2; 4) suspending the aluminum profile in a sealing tank through the suspension assembly, using an aluminum electrode as an anode and the aluminum profile to be sealed as a cathode and performing pulse power treatment for 25 minutes, while the aluminum profile vibrates and a sealing liquid is circulated and sprayed through a jet steam engine, so that the sealing tank is in an aerated state and the electrolyte temperature is maintained at 70 to 110 degrees Celsius; and 5) cleaning and drying the aluminum profile treated in step 4.

A method for preparing a NiCo-MOF anodic oxidation catalyst for matching cathode CO2 reduction is disclosed, belonging to the technical fields of electrocatalysis and fine chemical synthesis. Based on ion etching in a hydrothermal environment, a NiCo-MOF electrocatalyst with a uniform nanoflower-like structure was grown on the surface of substrates such as nickel foam. Benefiting from the modulating effect of cobalt on the electron cloud distribution of the active center nickel, this catalyst exhibits excellent catalytic activity for glycerol oxidation and glucose oxidation, achieving up to 400 mA cm⁻¹ at only 1.398 V. ‑2 The industrial-grade current density has a Tafel slope of only 42.3 mV dec. ‑1 The catalyst exhibited no performance degradation after 100 hours of stable cycling, with a Faradaic efficiency exceeding 90% for the main product, formic acid. This catalyst demonstrates a simple synthesis method, low cost, good catalytic activity and selectivity, and excellent stability, showing promising industrial application prospects in the co-production of formate using small-molecule electro-oxidation coupled with carbon dioxide electroreduction.

The invention provides an electrochemical degradation method for benzene series volatile organic waste gas. The method comprises the following steps: introducing benzene series VOCs into an electrolyte, respectively connecting a cathode and an anode with a negative electrode and a positive electrode of a power supply, and electrolyzing the electrolyte to degrade the benzene series VOCs, the electrolyte is a sodium persulfate solution; according to the electrochemical degradation method for the volatile organic waste gas of the benzene series, the volatile organic waste gas of the benzene series is oxidized and degraded by adopting the electro-activated persulfate; compared with other persulfate (PDS) activation methods, the electrochemical activation technology (E / PDS) has the unique advantage that the degradation performance of benzene series VOCs is superior to that of an anodic oxidation method due to the generation of reactive oxides (ROS) (mainly. SO4 <-> and. OH). According to the benzene series VOCs degradation method disclosed by the invention, by controlling process parameters, the benzene series VOCs have relatively high conversion rate and mineralization rate.

The invention provides a lithium ion battery gas getter. The present disclosure relates to systems and methods for gas mitigation. In one aspect of the present disclosure, a battery is presented. The battery has a degassed lithium-rich manganese battery cell and a lithium-based anode encapsulated with a lithium-rich manganese cathode saturated in an electrolyte. A barium oxide-based coating is in the degassed lithium-rich manganese battery cell and is configured to convert oxygen and carbon dioxide to barium peroxide and carbonate and retain the barium peroxide and the carbonate.

The invention discloses an aluminum electrolytic capacitor for automotive electronics and a preparation method of the aluminum electrolytic capacitor. The capacitor comprises a core package formed by winding an anode foil, a cathode foil and electrolytic paper, and an electrolyte impregnated in the core package. The electrolyte comprises a solvent, a solute and an additive, the solvent contains ethylene glycol monoalkyl ether, and the additive contains phosphotungstic acid. The preparation method comprises the steps of riveting, element winding, drying treatment, electrolyte impregnation, packaging, aging and the like, wherein the impregnation rate is controlled to be 1.31-1.51 in the electrolyte impregnation step. Through the optimized electrolyte formula and strict process control, the high-frequency ESR of the capacitor is remarkably reduced, the hydration corrosion of an anode oxide film is effectively inhibited, the high-temperature resistance and the mechanical vibration reliability are improved, and the harsh application requirements in the field of automotive electronics are completely met.

The present invention belongs to the field of electrode material technology, and provides a titanium-based platinum-nickel electrode material, a preparation method thereof, and an application thereof. The method comprises the following steps: sequentially performing a first anodization and a second anodization on a titanium sheet in an ammonium fluoride solution to obtain an oxidized titanium sheet; calcining the oxidized titanium sheet to obtain a titanium sheet containing a titanium dioxide layer; and electro-depositing the titanium sheet containing the titanium dioxide layer in a platinum-based electrolyte to obtain a titanium-based platinum-nickel electrode material. The titanium-based platinum-nickel electrode material prepared by the present invention effectively reduces the usage of Pt-based precious metals, and can maintain high activity and stability to generate hydrogen peroxide online under neutral conditions; its cathode current density efficiency reaches 76.40%, its anode current density efficiency reaches 70.23%, and its dual capacitance value is 1.33mF·cm ‑2 It is 4.2 times the dual capacitance value of titanium-based platinum-nickel electrode materials obtained without anodic oxidation, and has good prospects for industrial application.

The utility model discloses a circulating self-cleaning type anode precision oxidation device which is characterized in that an oxidation anode is arranged on two side plates of a tank chamber of a tank body, and a liquid supply cavity partition plate and a backflow cavity pore plate are respectively and fixedly arranged at the front end and the rear end of the tank chamber of the tank body; a liquid supply cavity is defined by the liquid supply cavity partition plate and an end plate at the corresponding end of the tank body, a filter is arranged in the liquid supply cavity, and a plurality of fluid directors are mounted on the liquid supply cavity partition plate; a backflow cavity is defined by the backflow cavity pore plate and an end plate at the corresponding end of the tank body and leads to the liquid supply cavity through a circulating pipeline; and an anode scraping plate is arranged on the oxidation anode in a sliding manner. A flow guide cylinder of the flow guide device is fixedly installed in a plate hole of the liquid supply cavity partition plate, and a flow guide paddle is installed on an output shaft of the flow guide motor and located in the flow guide cylinder in a rotatable mode. The precise oxidation device not only can effectively filter out solid particle impurities in the electroplating liquid, but also can effectively reduce the flow velocity difference of the electroplating liquid on the section of the tank chamber, prevents the circulating electroplating liquid from generating vortexes and flowing dead angles, and is particularly suitable for precise anodic oxidation treatment.

A surface treatment method for a SiC substrate, including the following processes or steps: anodizing a workpiece surface (W1) of the SiC substrate by passing a current having a current density of 15 mA / cm 2 or more through the SiC substrate as an anode in the presence of an electrolyte (S); arranging an abrasive wheel layer (32) of a surface treatment pad (3) to face the workpiece surface, and selectively removing oxides formed on the workpiece surface by the anodizing with the abrasive wheel layer; and simultaneously or sequentially performing the anodizing of the workpiece surface and the selective removal of the oxides formed on the workpiece surface with the abrasive wheel layer.

The invention discloses electrochemical auxiliary grinding and polishing machining equipment and method for an annular element, and belongs to the technical field of ultra-precision grinding and polishing machining of the annular element. The electrochemical auxiliary grinding and polishing machining method for the annular element comprises the steps that the annular element to be machined is fixed to a rotary table; controlling the grinding wheel and the turntable to rotate; after the electrochemical generation device is started, the annular element serving as an anode, the grinding wheel metal base serving as a cathode and electrolyte form a closed circuit, and the surface of the element is subjected to anodic oxidation reaction rapidly; and the grinding wheel rotates to remove workpiece surface oxides. Grinding and polishing integrated machining of the end face, the inner cylindrical face, the outer cylindrical face and the step face of the annular element is completed by controlling the contact condition of the grinding wheel and the annular element and replacing the type of the grinding wheel. Through the synergistic effect of an electrochemical auxiliary technology and mechanical precision removal, conversion of multiple procedures is avoided, efficient and damage-free polishing of the surface of the annular element is achieved, the nanoscale smooth surface is achieved, and the ultra-precision machining requirement of a complex annular structural part is met.

The invention relates to the technical field of energy storage and conversion, in particular to a three-electrode type zinc-organic matter integrated air battery which is formed by assembling a charging cathode, a discharging cathode and an anode. The charging cathode and the discharging cathode are respectively composed of a current collector and an electrooxidation catalyst or an oxygen reduction catalyst; the battery is characterized in that a reduction mechanism of oxygen in air and an electrooxidation reaction of organic matters are integrated in one device; during discharging, oxygen reduction reaction is carried out on the discharging cathode to generate hydroxyl, and anode Zn is oxidized into ZnO; during charging, an oxidation reaction of organic matters occurs on the charging cathode to generate acid, and ZnO is reduced into Zn on the anode; compared with a conventional dual-electrode zinc-air battery, the air battery has the following advantages: (1) the charging voltage of the battery is reduced, and the charging / discharging energy conversion efficiency of the battery is improved; (2) the oxygen reduction catalyst is effectively prevented from being inactivated due to excessive oxidation during charging; and (3) electric energy output and green synthesis of high-value chemicals can be realized at the same time.

The invention relates to the technical field of aluminum electrolysis metallurgy, in particular to an aluminum electrolysis carbon anode anti-oxidation coating and a preparation method thereof. The coating is prepared from the following raw materials in percentage by mass: 45-60% of aluminum oxide powder; 15 to 25% of water glass; 8-12% of potassium feldspar powder; 0.5 to 2% of sodium fluoride; 7-11% of sodium acetate trihydrate; 8-12% of ionized water; the preparation method comprises the following steps: S1, preparing the catalytic compact component; s2, mixing the coating; s3, coating and drying; and S4, carrying out high-temperature calcination. The product provided by the invention has good oxidation resistance, adhesive force and compactness, and the preparation method provided by the invention has the advantages of simple process and low cost.

This invention relates to the field of hydrogen production technology, specifically to a method for producing dihydroxyacetone from glycerol via electrochemical oxidation coupled with hydrogen production. The method includes: S1 preparing a glycerol alkaline solution as the electrolyte solution, the purity of which must reach analytical grade; S2 placing the electrolyte solution prepared in S1 into an electrolytic cell, connecting the positive terminal of a power supply to the anode in the electrolytic cell, and connecting the negative terminal of the power supply to the cathode in the electrolytic cell; S3 turning on the power supply and, at a defined temperature, performing a redox reaction and a hydrogen evolution reaction to obtain dihydroxyacetone prepared by anodic oxidation, and simultaneously obtaining hydrogen gas prepared by cathode hydrogen evolution. This patent constructs a synergistic reaction system of selective anodic oxidation to dihydroxyacetone and efficient cathode hydrogen evolution by using a glycerol alkaline solution as the electrolyte solution. The glycerol alkaline solution weakens the nucleophilic attack intensity of hydroxide ions and inhibits carbon-carbon bond breaking through the in-situ protection mechanism of the glycerol carbon chain, achieving highly selective and directional synthesis of dihydroxyacetone.

The invention relates to a method for preparing 2-aryl-3-difluoromethyl benzothiophene by utilizing an electrochemical reaction. Specifically, the invention provides an electrochemical anodic oxidation cathode reduction characteristic instead of a traditional chemical oxidation reducing agent, sodium difluoromethanesulfinate is used as a difluoromethyl donor, and a difluoromethyl free radical is excited through electrochemical anodic oxidation, so that the difluoromethyl free radical is synthesized. The preparation of the target molecule 2-aryl-3-difluoromethyl benzothiophene is realized through intramolecular cyclization initiated by addition of free radicals to active alkyne. The method does not need to add an additional transition metal catalyst and a super-stoichiometric redox agent, has the advantages of mild reaction conditions, high product yield, good chemical selectivity and the like, better conforms to the purpose of green and sustainable development of the current society, and has a good industrial application prospect.

The utility model discloses a special jig for a semiconductor chemical anodizing auxiliary cathode, which belongs to the technical field of anodizing auxiliary cathode jigs, and comprises a first cathode auxiliary jig, a second cathode auxiliary jig, a third cathode auxiliary jig and a fourth cathode auxiliary jig, the second cathode auxiliary jig is suspended in the to-be-plated product, is connected with the first auxiliary cathode jig and is used for being matched with the first cathode auxiliary jig and an anode connected to the to-be-plated product to carry out electroplating treatment on the interior of the to-be-plated product; wherein the to-be-plated product comprises a first barrel, a second barrel and a through groove, the second barrel is fixedly connected into the first barrel and is communicated with the first barrel, and the through groove is formed in the bottom of the first barrel; according to the utility model, the complex inner cavity of the product to be plated can be electroplated.

Disclosed are an anode slurry, a preparation method therefor, and a use thereof. The present invention provides a method for preparing anode slurry C, which comprises the following steps: step 1, mixing an iridium catalyst, a perfluorosulfonic acid resin dispersion, and a solvent to obtain slurry A; step 2, adding a platinum precursor to slurry A to obtain slurry B; and step 3, reacting slurry B at 50-90 °C to prepare anode slurry C. In the present invention, by means of directly adding a water-soluble platinum precursor into an anode oxidation iridium catalyst slurry, the dispersion of platinum and the hydrogen removal capability in oxygen per unit mass of platinum are significantly improved.

The invention provides an organic matter continuous electrolysis hydrogen production method, which relates to the field of electrolysis hydrogen production, and comprises a hydrogen production system, and the hydrogen production system mainly comprises a reaction kettle, a separation assembly composed of a fine screen and an ultrafiltration membrane, an electrolytic bath and a hydrogen collection system. The process for producing hydrogen by using the system comprises the following steps: firstly, adding a strong acid solution, an oxidation reduction medium and an organic matter into a reaction kettle, heating to 50 DEG C to reflux temperature, and oxidizing and degrading the organic matter for 0.5-1.0 hour; then organic matters are continuously added through a feeding device, materials are continuously discharged through a discharging pipe, the discharged materials are separated through a fine screen and an ultrafiltration membrane, and an obtained solution is input into an electrolytic bath at a certain flow speed for electrolysis. The medium solution regenerated by anodic oxidation is continuously conveyed to the reaction kettle for recycling, and meanwhile, protons entering the cathode through the proton exchange membrane obtain electrons and release hydrogen. By adopting the system and the method to produce hydrogen, the energy consumption, the cost and the investment of hydrogen production can be remarkably reduced, the hydrogen production efficiency is improved, and the system and the method are almost suitable for organic matters.