117 results about "Titanium electrode" patented technology

The invention provides a hydrogen sensor with an ultrafast hydrogen response speed and a preparation method thereof, the hydrogen sensor comprises a silicon oxide substrate and a double-interdigital electrode structure, the double-interdigital electrode structure comprises a titanium electrode layer, a tungsten enhancement layer and a palladium sensitive layer; an interdigital electrode pattern is arranged on the silicon oxide substrate, the titanium electrode layer covers the interdigital electrode pattern, the tungsten enhancement layer covers a pin area and a bridge arm resistance area of a titanium electrode, the palladium sensitive layer covers the titanium electrode layer and corresponds to the position of the interdigital electrode pattern, and the titanium electrode layer is directly arranged on the silicon oxide substrate. The structure is simple, the titanium electrode serves as the bottom electrode, the sensitivity and mechanical stability of the sensor are improved, the tungsten enhancement layers are arranged in the titanium electrode pin area and the bridge arm resistor area, and the overall conductivity and mechanical strength are improved.

The invention discloses a treatment method for synchronously removing ammonia nitrogen and organic matters in biogas slurry, which comprises the following steps: the biogas slurry is subjected to electrochemical treatment and ultraviolet radiation treatment at the same time, the anode adopted in the electrochemical treatment comprises a ruthenium iridium titanium electrode, and the cathode comprises an iron-doped modified carbon felt electrode. The preparation method of the iron-doped modified carbon felt electrode comprises the following steps: a, carrying out ultrasonic cleaning on a carbon felt; b, the cleaned carbon felt is soaked in acid liquor to be activated; c, dipping the activated carbon felt in a polytetrafluoroethylene solution; d, coating one side of the carbon felt treated in the step c with a solution containing carbon powder and polytetrafluoroethylene, and drying to obtain a carbon felt containing a catalyst layer; and e, dropwise adding an iron-containing precursor solution onto the carbon felt catalyst layer, and calcining to obtain the iron-doped modified carbon felt electrode. The treatment method provided by the invention realizes in-situ generation and activation of hydrogen peroxide, enhances removal of organic pollutants, reduces consumption of active chlorine by organic matters, and realizes synchronous removal of ammonia nitrogen and organic matters in the biogas slurry.

The invention discloses a preparation method of a novel mixed metal oxide coating titanium electrode, and relates to the technical field of electrode preparation, the method comprises the following specific steps: titanium substrate pretreatment: a titanium plate is sequentially subjected to gradient polishing with 120-800-mesh abrasive paper, the polished titanium substrate is subjected to hydrochloric acid solution etching, argon plasma surface activation and drying treatment, and a titanium substrate is obtained; obtaining a clean substrate surface with proper roughness; through the low-temperature plasma treatment, pulsed bias magnetron sputtering and laser-induced atomic layer deposition (LA-ALD) combined technology, the binding force of the coating and the titanium substrate is remarkably improved, high-energy particles are used for bombarding the surface of the titanium substrate in the low-temperature plasma treatment, residual impurities are effectively removed, the surface roughness and active sites are increased, and the surface hardness of the titanium substrate is improved. In the pulsed bias magnetron sputtering process, the surface of the substrate is further cleaned through periodic ion bombardment, atomic diffusion and mixing between the coating and the substrate are promoted, a transition layer structure is formed, and therefore the binding force is greatly enhanced.

The invention discloses a preparation method of a chemically modified titanium-based sensor, which comprises the following steps: pretreatment of a titanium electrode: polishing the surface of the titanium electrode to be smooth and flat, and carrying out ultrasonic cleaning and drying; and chemical modification of the titanium electrode: firstly carrying out nano material modification on the pretreated titanium electrode, and then carrying out functional molecule modification. The invention further discloses a chemically modified titanium-based sensor, application of the chemically modified titanium-based sensor and a method for detecting the titanium content. According to the chemically modified titanium-based sensor provided by the method, the selective adsorption capacity to titanium ions is improved, the accuracy and the reliability of an analysis result are improved, high-sensitivity detection of the titanium content can be realized, and the concentration range is wide.

The invention relates to the technical field of degradation-resistant organic wastewater treatment, in particular to a cathode and anode type electro-Fenton coupling wastewater treatment device and method.The cathode and anode type electro-Fenton coupling wastewater treatment method comprises the steps that a titanium electrode or a BDD electrode is adopted in an anode module, 0.05-0.5 mol / L sulfate radical serves as electrolyte, and persulfate is electrically synthesized in situ; a cathode module is a porous carbon electrode, and # imgabs0 # is generated through aeration at the speed of 0.5 L / min to 2 L / min; the space between the cathode modules is filled with three-dimensional invasive plant source biochar catalytic particle electrodes, the H-type double-chamber electrolytic tank separates a cathode chamber and an anode chamber through a proton membrane, and the method comprises an intermittent type (firstly adsorbing trace pollutants and then oxidizing, and biochar is renewable) and a continuous type (synchronously adsorbing and degrading high-concentration wastewater, and pretreating to improve biodegradability). The device realizes the cooperation of adsorption and electrocatalytic oxidation, efficiently treats refractory wastewater, promotes the recycling of invasive plants, and has both environmental protection and economic values.

The invention discloses a graphene composite high-entropy metal oxide coating titanium-based electrode as well as a preparation method and application thereof, and the preparation method of the graphene composite high-entropy metal oxide coating titanium-based electrode comprises the following steps: S1, pretreating a titanium substrate; s2, the pretreated titanium substrate is placed in an electro-deposition solution, wherein the electro-deposition solution is a mixed solution of a graphene oxide solution and a high-entropy metal salt solution; s3, the titanium substrate is used as an anode, a graphite electrode is used as a cathode, and electro-deposition is carried out on the titanium substrate; and S4, in the inert gas atmosphere, heat treatment is carried out on the titanium substrate deposited with the coating. The graphene composite high-entropy oxide is prepared through electro-deposition, the process is simple, and the preparation cost is low. When the prepared graphene composite high-entropy oxide coating titanium electrode is used for treating high-concentration wastewater with the COD ranging from 500 mg / L to 20000 mg / L, 85% or above of COD can be removed within 120 min, stability is excellent, and wide application prospects are achieved.

The invention discloses a Ti / IrO2-RuO2 coating titanium anode and a preparation method and application thereof, and belongs to the technical field of titanium electrodes, the titanium anode comprises a titanium substrate and a metal oxide coating; the molar ratio of Ir to Ru in the metal oxide coating is 5: 5. The preparation method comprises the following steps: adding a mixed solution of citric acid and ethylene glycol into a mixed solution of ruthenium trichloride and chloroiridic acid, then dropwise adding water and hydrochloric acid, carrying out ultrasonic treatment to obtain a mixed colloidal solution, coating a titanium substrate with the mixed colloidal solution, drying, and sintering to obtain the Ti / IrO2-RuO2 coating titanium anode. The invention further discloses the titanium anode prepared through the preparation method and application of the titanium anode in zinc electrodeposition. The Ti / IrO2-RuO2 coating titanium anode provided by the invention has good electrochemical performance, and compared with grains prepared by a thermal decomposition method, the Ti / IrO2-RuO2 coating titanium anode is finer and more uniform in grain, larger in specific surface area and better in electro-catalytic activity.

The invention relates to a perovskite single crystal radiation detector capable of working stably under high bias voltage and a preparation method thereof, the detector comprises a perovskite single crystal material layer, a titanium electrode layer and a grounding electrode layer, and the titanium electrode layer and the grounding electrode layer are respectively arranged on the upper side and the lower side of the perovskite material layer. The perovskite radiation detector disclosed by the invention can stably work under high bias voltage, and compared with a currently reported perovskite radiation detector, the perovskite radiation detector disclosed by the invention can realize long-term working stability without any passivation or polishing post-processing method on the perovskite single crystal. The perovskite radiation detector can work stably under high bias voltage, and is low in dark current, low in detection limit and high in sensitivity.

The application discloses a kind of bioelectrochemical reactor and the method for processing low concentration wastewater using it, belong to low concentration wastewater treatment technical field.The bioelectrochemical reactor of the application includes reactor top cover and reactor tank body;Gas inlet hole is provided on the reactor top cover, anode, cathode and aeration device are arranged in the reactor tank body, and anode and cathode are connected with external direct-current power supply through titanium wire respectively;Aeration device is connected with gas inlet hole;Anode and cathode are both carbon nanotube modified titanium electrode.When the above-mentioned bioelectrochemical reactor is used to process low concentration wastewater, first, electroactive bacteria are cultivated on the surface of electrode using aerobic sludge, then bioelectrochemical aerobic reaction is carried out, and under aeration condition and low voltage, COD and NH4 + -N removal efficiency can reach more than 95%, electrode corrosion is low, the treatment method is simple and efficient, and no secondary pollution is generated, and has wide application prospect.

The present invention discloses a titanium electrode block conveying and placing device, comprising a frame, a mobile trolley, a material rack support and moving mechanism, and a placing mechanism. The frame comprises a frame and a material taking platform. The mobile trolley is arranged above the frame. The material rack support and moving mechanism are arranged below the welding material rack. The placing mechanism comprises a lifting cylinder arranged in the middle of the mobile trolley body, a second motor reducer and a driving lifting transmission device installed on the body, a moving block arranged on the upper plate of the lifting cylinder, a moving block adjustment screw threadedly engaged in the internal thread of the moving block, a third motor reducer installed on the upper plate and driven and connected to the moving block adjustment screw, an adjustment block arranged at the lower part of the lifting cylinder, and a rocker rotatably connected to the adjustment block and the moving block. The titanium electrode block conveying and placing device of the present invention can conveniently convey and place titanium electrode blocks on the welding material rack, making it easier for the titanium electrode blocks to enter the welding box for subsequent welding processing.

The invention relates to the technical field of electrode press operation, in particular to a continuous reciprocating type mixed feeding device and method for a titanium alloy electrode press. After the raw materials are mixed in the mixing device, the mixed raw materials are transferred into the material mixing tank, the material mixing tank continues mixing, it is guaranteed that the mixing effect of the raw materials is not changed, meanwhile, the raw materials move towards the position of the mold, and when the mixed materials move to the position above the mold, the mixed raw materials are transferred into the mold; meanwhile, the two mixing tanks are arranged and matched with the two-time feeding process of the titanium electrode, when the first mixing tank unloads materials to the mold, the second mixing tank is just transferred to the feeding position of the mixing device, and when the first mixing tank unloads the materials, the second mixing tank loads the materials, so that continuous mixing and feeding of the raw materials are achieved, and meanwhile, the production efficiency is improved. And the mixing tanks are arranged side by side and do reciprocating motion between the feeding position and the mold. The problem that the finished product quality of titanium alloy electrodes is affected due to layering in the feeding process is solved, and meanwhile automatic and continuous feeding of raw materials is achieved.

The invention discloses a preparation method and an application of a high-sensitivity photoelectric detector based on Cr2Ge2Te6. The design method comprises the following steps of: obtaining single-layer or few-layer Cr2Ge2Te6 by using a silver-assisted stripping method, and transferring the single-layer or few-layer Cr2Ge2Te6 to a clean SiO2 / Si substrate by using a PDMS / PVA (Polydimethylsiloxane / Polyvinyl Alcohol) film; and finally, plating titanium at two ends of the Cr2Ge2Te6 to serve as metal electrodes. The structure of the prepared photoelectric detector is a titanium electrode / Cr2Ge2Te6 / titanium electrode. According to the test of a photoelectric test probe station, under the condition that the voltage of the electrodes at the two ends ranges from-1 V to 1 V, lasers with different wavelengths and different powers are additionally arranged on the Cr2Ge2Te6 photoelectric detector, the Cr2Ge2Te6 photoelectric detector can detect visible light (405 nm, 532 nm and 635 nm) and near-infrared light (808 nm) with the optical power density of 30-50 [mu] W / cm < 2 >, and light current is improved by one order of magnitude compared with dark current under weak laser irradiation.

The application provides a cold coke water treatment process and system. The cold coke water treatment process comprises the following steps: step one: after being collected by a coke storage pool, the cold coke water is filtered by a flat ceramic membrane to obtain concentrated coke water and dilute coke water, and the concentrated coke water is returned to the coke storage pool; step two: after being stored by a cold coke water tank, the dilute coke water is divided into dilute coke water I and dilute coke water II, the dilute coke water I is sequentially treated by a first-stage electro-catalytic oxidation unit, a second-stage electro-catalytic oxidation unit and a reverse osmosis unit to obtain purified water; and the dilute coke water II is used as cold coke water makeup water and recycled; the first-stage electro-catalytic oxidation unit is provided with an electro-catalytic oxidation reaction tank, the electro-catalytic oxidation reaction tank is provided with a cathode and an anode, the cathode is a titanium electrode, and the anode is a titanium-based metal oxide coating electrode; the second-stage electro-catalytic oxidation unit is provided with an electro-catalytic oxidation reaction tank, the electro-catalytic oxidation reaction tank is provided with a cathode and an anode, the cathode is a titanium electrode, and the anode is a boron-doped diamond electrode. The treatment process has good treatment effect and is environmentally friendly and economical.

The invention discloses a stable electrochemical extraction design method of an irregular titanium-containing electrode, and belongs to the technical field of electrochemical metallurgy. The method is realized based on an in-situ detection device of high-temperature electrochemistry. The in-situ detection device comprises an X-ray source, an X-ray fluorescent screen, an aluminum-based alloy protective shell, a heating device, a rotary base, a quartz crucible, a crucible sealing cover with a hole and a vacuum pump. The implementation method comprises the following steps: adopting a 4D visualization method to realize real-time in-situ observation of spatial dissolution and deposition morphology change of the irregular titanium-containing electrode at any time, carrying out three-dimensional reconstruction on a CT image to realize numerical modeling of a real structure of the electrode, and establishing correlation between electrode morphology evolution and electrochemical parameters according to a numerical modeling result, so as to realize real-time in-situ observation of the titanium-containing electrode. According to the association, on the basis of non-uniform distribution of the overpotential in different spatial positions of the irregular titanium-containing electrode, a coaxial cathode matched with the irregular anode is designed, so that the non-uniform distribution of the overpotential is reduced, and stable electrochemical extraction is realized.

The utility model provides a special clamp for a sponge titanium electrode, which comprises a lifting lug, two small arms are arranged at one end of the lifting lug, and a first shaft is arranged between the two small arms and the lifting lug; the number of the large arms is two, the two large arms are arranged at one ends of the two small arms respectively, a second shaft is arranged between the large arms and the small arms, and a fourth shaft is arranged between the two large arms; and the number of the floating clamps is two, and the two floating clamps are connected to the surfaces of the two large arms through a third shaft. According to the clamp special for the sponge titanium electrode, the arc-shaped floating clamp is additionally arranged at one end of the large arm, so that the contact surface is increased, abrasion is reduced, meanwhile, the contact surface is increased, and an electrode block is safer in the carrying process.

The circular current-sharing type titanium electrode conductive connection structure comprises a conductive connection frame, a plurality of U-shaped connection frames arranged on the conductive connection frame, a first annular clamping seat and a second annular clamping seat, wherein the first annular clamping seat and the second annular clamping seat are arranged at the two ends of the U-shaped connection frames respectively and are used for carrying out limiting connection on a titanium electrode body; wherein the first annular clamping seat and the second annular clamping seat have the same structure; adjusting bases for adjusting the distance between the first annular clamping base and the second annular clamping base are arranged at the two ends of the U-shaped connecting frame. The positions, relative to the U-shaped connecting frames, of the different conductive connecting frames are adjusted, so that the vertical distance between the different U-shaped connecting frames is adjusted, and the distance between the different titanium electrode bodies clamped and installed on the U-shaped connecting frames is adjusted; besides, the expansion head of the annular clamping seat in the adjusting seat is adjusted through the adjusting screw rod in the adjusting seat, so that the coaxiality between different layers of titanium electrode bodies is kept.

The invention relates to the technical field of solid building material waste treatment, and discloses a road engineering building material waste treatment device which comprises a cleaning tank, a regeneration stirring bin is arranged on one side of the cleaning tank, the regeneration stirring bin and the cleaning tank are connected through a waste conveyor, and a cleaning filter plate is embedded and fixedly connected to the upper portion of the cleaning tank; the cleaning filter plate is of an arc-shaped net-shaped structure, the arc-shaped face of the cleaning filter plate faces downwards, an inner cavity of the cleaning tank is divided into an upper cavity and a lower cavity which are distributed up and down, crushed and sorted asphalt-containing waste aggregate enters the upper cavity above the cleaning filter plate and is immersed in cleaning liquid in the cleaning tank, the top wall of the cleaning tank is fixedly connected with a support, and the support is fixedly connected with the cleaning filter plate. And a shifting device is arranged at the top of the bracket. And through an arc-shaped net-shaped cleaning filter plate and material stirring plate linkage mechanism, waste aggregate rolling collision cleaning is achieved, oil stains and heavy metal ions are effectively decomposed in cooperation with nanoscale hydroxyl free radicals generated by a titanium electrode electrolysis module, and the cleaning efficiency is improved.

The utility model relates to an injection and extraction static deflector for a proton helium ion therapy synchrotron, which comprises a cutting plate, a cathode, a first support plate, a second support plate and a vacuum cylinder, the first support plate and the second support plate are positioned on the same plane, the cutting plate is movably mounted in the vacuum cylinder through the first support plate, and the cathode is arranged in the vacuum cylinder. The cathode is a titanium electrode and is movably installed in the vacuum cylinder through a second supporting plate. According to the injection and extraction electrostatic deflector for the proton helium ion treatment synchrotron, the positions and deflection angles of the deflector can be respectively adjusted as required through the first supporting plate and the second supporting plate which can be independently adjusted, the cutting plate and the cathode; therefore, different precession distances, field intensities and deflection angles required by proton and helium ion injection and extraction are realized.

The embodiment of the invention provides a preparation method of a titanium-based water electrolysis hydrogen production electrode and the titanium-based water electrolysis hydrogen production electrode, and relates to the technical field of water electrolysis hydrogen production, and the method comprises the steps that a titanium electrode base body serves as an anode and is put into a passivation solution for electrification treatment, and a passivation film is formed on the surface of the titanium electrode base body based on the anode passivation reaction; and preparing a catalytic active layer on the outer layer of the passive film formed on the surface of the titanium electrode substrate to obtain the titanium-based water electrolysis hydrogen production electrode. By applying the embodiment of the invention, the hydrogen embrittlement resistance and durability of the titanium-based water electrolysis hydrogen production electrode can be improved, and the service life of the titanium-based water electrolysis hydrogen production electrode can be prolonged.

The invention belongs to the technical field of hydrogen production equipment production, and provides a regular microstructure titanium electrode plate based on 3D printing aiming at the defects of the prior art, and the regular microstructure titanium electrode plate can still be applied to a filmless electrolytic bath in the hydrogen production field on the premise of not using polypyrrole. Therefore, based on an existing titanium electrode plate, microstructure reshaping is carried out, raw material screening is carried out according to the reshaped microstructure, the screened raw materials are processed into the titanium electrode plate composed of the microstructure with the consistent shape through 3D printing, and catalyst loading is carried out on the titanium electrode plate. And the titanium electrode plate loaded with the catalyst is used for preparing a filmless electrolytic bath. Compared with the prior art, the scheme has more strict requirements on raw materials, and the particle size and sphericity are accurately controlled, which is far better than the description of the raw materials by a contrast file. However, the quality control requirement of a final product is actually lower than the requirement in the prior art. Therefore, the machining cost is lower, and popularization is more convenient.

The utility model discloses a titanium electrode block assembly material rack clamp, comprising an electrode, wherein an upper mold fixing beam and a lower mold fixing beam are respectively mounted on the upper and lower sides of the electrode, U-shaped positioning pads are sleeved at the lower edges of the left and right sides of the lower mold fixing beam, and saddle-shaped positioning pads are installed on the tops of the left and right sides of the upper mold fixing beam, and U-shaped connecting frames are arranged on the left and right opposite sides of the saddle-shaped positioning pad and the U-shaped positioning pad, the U-shaped positioning pad is deeply embedded in the inner bottom of the U-shaped connecting frame and is locked by a screw, the saddle-shaped positioning pad is deeply embedded in the inner middle part of the U-shaped connecting frame and is fixed by a locking pin, and a disc supporting base is symmetrically fixed on the left and right opposite sides of the U-shaped connecting frame, which effectively solves the problem of replacing the clamp pressure claws, the latch and the channel steel back and forth when the material rack places electrode blocks of different specifications and sizes, substantially reduces the labor intensity, and efficiently carries out the swinging of the material rack electrode blocks.

The application is a method for coupling phase transfer of chlorine and in-situ chlorination. The method comprises the following steps: under a two-electrode system, using a coated titanium electrode as a working electrode and a platinum plate as a counter electrode, reacting for 1-4 hours under a constant current of 3 mA-50 mA, and standing the whole reaction system for 6-14 hours to obtain 2,4-dichloroacetanilide; in the anode chamber, the lower part is an anode electrolyte and the upper part is an organic phase; the volume ratio of the two is 1:1-3; and the working electrode is completely inserted into the lower aqueous phase; and the anode electrolyte is a hydrochloric acid solution containing a chlorine salt. The application improves the direct utilization rate of chlorine atoms, the active chlorine generated by the anode does not escape the system and directly participates in chlorination, thus significantly reducing the accumulation of chlorine gas and the safety hidden danger of storage and transportation, and providing a feasible method for coupling traditional process and electrocatalytic experiments.

The invention discloses a circulating type seedling culture water quality regulation and control method based on weak electric field coupling multi-trophic-level organisms, and belongs to the technical field of seedling culture water quality regulation and control. The method comprises the following steps: putting chlorella with a certain density into a culture water body, culturing for a period of time, inoculating rotifers, and then culturing shellfishes in the culture water body to construct a rotifer-algae-shellfish multi-nutritional-level system; titanium electrode plates are placed at the two ends of the aquaculture water body and matched with a direct-current converter, air stones are laid at the bottom of the aquaculture water body, and a power source is switched on to form a weak electric field in the aquaculture water body; after fish and shellfish are bred and collected, the number of rotifers and chlorella in the breeding water body is adjusted to a certain extent according to the putting value, the rotifer-algae-shellfish multi-nutrition-level system is constructed, the aquaculture seedling breeding water body can achieve self-purification, the sewage treatment cost and the influence on the environment are reduced, and the breeding water body is more environmentally friendly. And the metabolic rate of each nutrition level in the multiple nutrition levels is increased through the weak electric field.

The application relates to the technical field of water treatment, and discloses a system for deep treatment and reuse of iron ore sand industrial water in an island, which comprises, in sequence, a water inlet pretreatment unit, a biochemical denitrification and phosphorus removal unit, a sedimentation and separation unit, a membrane physical interception unit and an electrodeionization unit. The biochemical denitrification and phosphorus removal unit is an AAO-AO reaction tank, which is internally divided into five biochemical reaction zones in sequence and is provided with a nitrification liquid internal reflux pipeline; the membrane physical interception unit comprises a rotary drum filter tank, an ultrafiltration unit and a nanofiltration unit; the main body of the electrodeionization unit is internally configured with a reticular platinum-plated titanium electrode and a stainless steel compression spring for providing downward mechanical pressure, and is internally filled with a resin layer formed by uniformly and integrally filling and mixing strong acid cation resin, weak acid cation resin, strong base anion resin and weak base anion resin. The system is processed by biochemical reaction, membrane and electrodeionization in cooperation, high salt hardness of raw water is removed, produced water reaches the standard of iron ore sand water, no chemical agent is needed for regeneration, and the water recovery rate is improved.

The present invention discloses an acid-resistant high-activity ruthenium-based mixed metal oxide titanium anode and a preparation method thereof, which relates to the technical field of titanium anode preparation. The preparation method includes the following steps: preparing a modified titanium matrix mixture, preparing a modified titanium anode matrix, preparing a coating solution powder, preparing a ruthenium-based metal oxide coating solution, pre-treating the modified titanium anode matrix, and preparing a ruthenium-based mixed metal oxide titanium anode. By mixing titanium powder with vanadium powder, the activity of the titanium electrode matrix is improved, or by mixing titanium powder with graphene nanopowder or carbon nanotube powder, a preparation mixture of the titanium matrix is obtained, thereby enhancing the electrical conductivity of the titanium electrode. By performing recrystallization annealing treatment on the mixture, the lattice structure of the mixture is changed, the grain size and the connection distribution state are regulated, and the activity of the titanium anode is further enhanced. By coating the ruthenium-based metal oxide coating solution, the acid resistance and corrosion resistance of the titanium anode are improved, thereby prolonging the service life of the titanium anode.

The invention provides a preparation method of ultralow-sulfur low-manganese steel for a titanium-containing electrode. The preparation method comprises the following steps: adding a first slagging material into a converter for dephosphorization and demanganization, pouring out part of converter slag, adding a second slagging material into the converter for decarbonization, tapping steel from the converter and completely remaining slag; active lime and cryolite are added when the LF enters the station, manganese in the molten steel is removed, after the molten steel is heated to the target station outlet temperature, a steel ladle slag modifier is added to the steel ladle slag surface, and then soft argon blowing is conducted; carbon powder is added for RH vacuum deoxidation, sponge titanium is added for RH alloying, and desulfurization modifier composite balls are added for RH deep desulfurization and inclusion modification; the ladle long nozzle is cast under the protection of a sealing ring and argon blowing in the whole process; and the covering agent is supplemented in the continuous casting process according to the covering condition of the tundish. According to the method disclosed by the invention, by utilizing thermodynamic and dynamic conditions of each process and combining a steel ladle slag modifier and desulfurization modifier composite ball, step-by-step demanganization, desulfurization and steel ladle slag modification are realized, and the ultralow-sulfur low-manganese steel for the titanium-containing electrode is prepared.

The present invention relates to the technical field of titanium alloy processing, and discloses a method for preparing a superconducting NbTiTa alloy ingot, comprising: mixing niobium powder and tantalum powder in a weight ratio of Nb:Ta=3:1, isostatically pressing and vacuum sintering the mixed material to obtain a NbTa sintered rod; subjecting the NbTa sintered rod to vacuum electron beam melting twice to obtain a Nb25Ta ingot; heating the Nb25Ta ingot to 300°C and holding the temperature for more than 2 hours to forge the Nb25Ta rod; determining the Nb content according to the measured composition of the Nb25Ta rod. The raw materials for the TiTa alloy and the NbTiTa alloy include at least: Nb25Ta rods, titanium sponge, and a TiTa mixed powder or a TiNb mixed powder. The titanium sponge and the TiTa mixed powder or the TiNb mixed powder are laid and pressed to form a titanium electrode block, wherein a groove is formed at the centerline of the upper surface of the titanium electrode block and runs through the opposite ends of the block. Multiple titanium electrode blocks and Nb25Ta rods are assembled and welded to form a rod-shaped consumable electrode. The consumable electrode is then subjected to three vacuum consumable arc melting processes to obtain a NbTiTa alloy ingot. This application achieves the purification of the alloy and the precision of its composition.

The invention discloses a hydrogen bond organic framework-polyvinyl alcohol composite hydrogel-based synaptic device as well as a preparation method and application thereof. The synaptic device comprises a zinc electrode on the upper layer, a titanium electrode on the lower layer and double-layer hydrogel clamped between the zinc electrode and the titanium electrode, the double-layer hydrogel comprises negative HOF / PVA composite hydrogel close to the zinc electrode and positive HOF / PVA composite hydrogel close to the titanium electrode, and the negative HOF / PVA composite hydrogel is in contact with the positive HOF / PVA composite hydrogel; the negative electricity HOF is a hydrogen bond organic framework material synthesized by using 1, 2, 4, 5-tetra (4-carboxyphenyl) benzene as a precursor, and the positive electricity HOF is a hydrogen bond organic framework material synthesized by using 1, 3, 6, 8-tetra (p-aminophenyl)-pyrene as a precursor. The core synaptic plasticity performance such as pulse promotion, pulse suppression, long-time-history promotion, long-time-history suppression and pulse time sequence dependent plasticity can be stably shown.

A multi-layer tubular anode device for efficient chlorine evolution and its preparation method. The device includes a central anode. Outside the central anode tube, a titanium electrode tube is arranged from the inside outwards. Outside the titanium electrode tube, a cathode tube is arranged. At one end where the central anode tube exposes the titanium electrode tube, an anode connecting plate is arranged. Outside the cathode tube, a cathode connecting plate is arranged. The preparation method includes: S1. Selecting titanium materials for cutting; S2. Degreasing treatment; S3. Acid etching treatment; S4. Coating treatment; S5. Assembling. By using a multi-layer tubular titanium electrode tube, the surface of the titanium electrode tube presents an irregular porous shape, which can make the electrolysis of sodium chloride more uniform and complete. The central anode tube, the titanium electrode tube and the cathode tube all adopt a hollow design, which can save titanium materials. Introducing precious metal Pd to replace precious metal Ir in the coating solution configuration can greatly reduce costs, and has the characteristics of convenient operation, simple structure and cost saving.

The application discloses a graphene composite high-entropy metal oxide coating titanium-based electrode and a preparation method and application thereof, and relates to the technical field of electrode materials, in particular to a graphene composite high-entropy metal oxide coating titanium-based electrode and a preparation method thereof.The preparation method of the graphene composite high-entropy metal oxide coating titanium-based electrode comprises the following steps: S1, pretreating a titanium base; S2, placing the pretreated titanium base in an electrodeposition liquid, wherein the electrodeposition liquid is a mixed liquid of an oxidized graphene solution and a high-entropy metal salt solution; S3, performing electrodeposition on the titanium base by taking the titanium base as an anode and a graphite electrode as a cathode; and S4, performing heat treatment on the titanium base with the coating deposited thereon in an inert gas atmosphere.The graphene composite high-entropy oxide is prepared by electrodeposition, and the process is simple and the preparation cost is low.The graphene composite high-entropy oxide coating titanium electrode prepared by the application can realize the removal of more than 85% of COD within 120 min when used for treating high-concentration wastewater with COD of 500-20000 mg / L, has excellent stability, and has a wide application prospect.