20results about How to "Speed ​​up the transfer process" patented technology

The invention provides a high-performance all-solid-state electrolytic tank for producing hydrogen by electrolyzing water and a preparation method of the high-performance all-solid-state electrolytic tank. The preparation method mainly comprises the following steps: preparation of electrode powder: preparing (La0. 6Sr0. 4) 0.95 Co0. 2Fe0. 8O3-delta (LSCF) powder by adopting a liquid-phase synthesis method, and preparing MxCe1-xNyO2 powder by adopting a coprecipitation method for an electrode and an isolating layer; preparing a half cell by adopting a co-casting process; an isolating layer and an oxygen electrode are prepared by adopting a silk-screen printing technology, and high-content water vapor is introduced to realize hydrogen production by electrolyzing water. The prepared high-performance all-solid-state electrolytic tank has efficient water electrolysis hydrogen production catalytic activity and Faraday efficiency, can operate at the medium-high temperature of 650-850 DEG C, and can effectively reduce electric energy consumption and improve energy conversion efficiency.

The invention discloses a near-infrared light response ultrathin nanosheet sulfur-doped BiOCl photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of photocatalytic materials. The preparation method comprises the following technical steps: (1) preparing a BiOCl nanosheet; and (2) preparing the sulfur-doped BiOCl nanosheet. By adopting a secondary hydrothermal method and controlling the dosage of thioacetamide and BiOCl nanosheets, the prepared catalyst is an ultrathin nanosheet with uniform morphology, the average size is 70-120nm, the catalyst has light response in a near-infrared light region of 780-1200nm, the light absorption capacity of the catalyst is better, and near-infrared light response can be achieved. The catalyst is applied to catalytic degradation of ENR, the ENR degradation rate under visible light is 66.87%, and the degradation effect is good; under near-infrared light, the ENR degradation rate is 9.25%, and the degradation performance from zero to existence is achieved. The preparation method disclosed by the invention is simple, mild in condition, easy to control, low in raw material consumption, free of complex operations such as centrifugation, low in preparation cost and easy to popularize and apply.

The invention discloses a multilayer nickel-cobalt-based OER catalyst and a preparation method thereof. The multilayer nickel-cobalt-based OER catalyst is characterized in that the catalyst is of a three-layer structure composed of a supporting layer, a middle layer and a skin layer, the supporting layer is foamed nickel, the middle layer is nickel-cobalt layered double hydroxide NiCo-LDH growing on the foamed nickel, the skin layer is ZIF-67, and the ZIF-67 is embedded in the nickel-cobalt layered double hydroxide. The prepared multi-layer nickel-cobalt-based OER catalyst can be applied to the field of electro-catalysis, an organic metal framework material is introduced, meanwhile, use of a binder (such as a Nafion solution) is avoided, controllable synthesis of an MOFs material is achieved, accordingly, excellent OER performance and stability are achieved, a ZIF-67 layer grows through an electroplating method instead of other high-energy-consumption modes such as hydrothermal growth, and the performance of the catalyst is greatly improved. The preparation efficiency is improved, the loss of raw materials is reduced, and higher industrialization potential is brought.

The invention provides a metal monatomic loaded lamellar stacked carbon nitride hollow cubic material as well as a preparation method and application thereof, and ACT-Fe / Na-C3N4 (0.04) with a three-dimensional hollow cubic morphology and uniformly dispersed in-plane / interlayer double Fe monatomic sites is successfully prepared by utilizing a morphology amorphous-to-crystalline transition (ACT) strategy. And crystal form regulation and fine design of metal atom sites are integrated. The built in-plane Fe-N4 and interlayer Fe-N5 coordination structure significantly improves the electron transport efficiency of the material, enhances the adsorption and activation ability to O2 molecules, realizes efficient generation of. O2 <->, and provides controllable reaction conditions for selective conversion of biomass, so that the HMF conversion rate reaches 98.8%, and the HMFCA selectivity reaches 83.7%. In addition, the ACT strategy is generally suitable for the assembly of a variety of transition metals (Mn, Fe, Co, Cu or Cd) at the same time.

The application relates to the field of biomedical technology, and discloses a diagnostic agent for identifying melanoma molecular subtype typing and application, wherein the diagnostic agent comprises a first antibody specifically combined with a SOX10 protein and a second antibody specifically combined with an EGR1 protein; the diagnostic agent can be applied to preparation of a diagnostic product for evaluating the prognostic effect of a melanoma patient, preparation of a diagnostic product for predicting the treatment sensitivity of melanoma to a BRAF inhibitor, and preparation of a diagnostic product for guiding an individualized treatment scheme of melanoma. The diagnostic agent for melanoma molecular subtype typing can be directly transformed into clinical practice, and can assist in realizing real individualized treatment.

This utility model relates to the field of filling and sealing equipment technology, specifically to a powder-liquid dual-chamber bag making and filling equipment. The equipment includes a front carriage and a rear carriage, as well as a bag transfer station connecting the two carriages. The front carriage is used for manufacturing the powder-liquid dual-chamber bag body, and the rear carriage is used for filling and sealing the liquid chamber of the powder-liquid dual-chamber bag. By setting up the bag transfer station to combine the front and rear carriages, the transfer process of the powder-liquid dual-chamber bag body can be accelerated, facilitating its entry into the subsequent liquid filling process. Linking the front and rear carriages increases the filling speed of the powder-liquid dual-chamber bag body, thereby accelerating the production efficiency of the powder-liquid dual-chamber bags.

The present invention discloses a micro LED chip and a control substrate eutectic structure and a preparation method thereof. The structure is obtained by welding a micro LED chip (1) and a control substrate (2) together simultaneously by using a laser. The micro LED chip (1) comprises a chip substrate (14) and a plurality of LED chips (11) fixed on the chip substrate (14). The plurality of LED chips (11) have a common first negative electrode (12), and the plurality of LED chips (11) respectively have an independent first positive electrode (13). The control substrate (2) is located below the micro LED chip (1) and comprises a control substrate body. (21) and a plurality of second positive electrodes (22) and a second negative electrode (23) located on the control substrate body (21); wherein the longitudinal thickness of the first negative electrode (12) is equal to the longitudinal thickness of the first positive electrode (13); the longitudinal thickness of the second negative electrode (23) is equal to the sum of the longitudinal thickness of the second positive electrode (22) and the longitudinal thickness of the LED chip (11), and this thickness allows the welding to be completed with the same heating time during eutectic welding, thereby solving the problem that during laser eutectic welding, the first positive electrode (13) has melted, while the first negative electrode (12) is too thick and has not melted.

The utility model relates to a kind of electric field activation pyrite removal wastewater total nitrogen device, belong to sewage treatment technical field, the utility model includes water distribution tank, reaction tank and effluent tank;Anode cage, cathode tube are equipped in the reaction tank, and sulphur iron ore particles are filled between cathode tube and anode cage;The power supply is connected to the cathode tube and anode cage;Water distribution tank and reaction tank between being equipped with baffle A, and the bottom of baffle A remains water flow passage A;Reaction tank and effluent tank between being equipped with baffle B;Water flow passage B is left in the left side of baffle B;The structure of the utility model makes sewage contact with sulphur iron ore under the action of electric field, and nitrate nitrogen and nitrite nitrogen can be reduced to nitrogen without biological bacteria, and nitrogen removal rate is high.

The application belongs to the technical field of electrocatalytic material preparation, and discloses a method for preparing a cobalt tungstate electrode based on gas-phase replacement, an electrode and application. 3 A seed layer is formed on the surface of the conductive substrate; then the conductive substrate is placed in a hydrothermal reaction solution containing tungstate, and a hydrothermal reaction is performed; after cleaning and drying, annealing treatment is performed, so that a WO3 nanosheet array is obtained on the conductive substrate; then the conductive substrate and a volatile cobalt source are placed in a protective atmosphere and under negative pressure to perform a gas-phase cation replacement reaction, so that a cobalt tungstate multistage nanostructure electrode is obtained. The application utilizes the characteristics of gas-phase reaction, and on the basis of inheriting the two-dimensional array structure of the precursor, a hierarchical rough morphology is constructed in situ; the prepared cobalt tungstate multistage nanostructure electrode exhibits excellent catalytic activity in the electrocatalytic oxygen evolution reaction in an alkaline medium, the process is simple and the parameters are controllable, and the application has good application prospect.

The utility model discloses a kind of packaging devices for sensor assembly belong to sensor packaging technical field, it includes bottom plate, two sides on the bottom plate are respectively fixedly connected with side plate, first packaging table and second packaging table are equipped between two side plates, the top of second packaging table is equipped with support frame. The packaging device for sensor assembly, first packaging table is driven to be close to packaging mechanism by sliding plate, fixed block then moves second packaging table by slide and sliding rod, when guiding assembly moves to the bottom of guiding groove, second packaging table will drive multiple sliding rods to move down, when guiding assembly moves to the top of guiding groove, second packaging table then moves out the top of packaging mechanism, first packaging table equipped with sensor assembly then moves to the below of packaging mechanism, so operation, the time period of taking and placing sensor assembly on second packaging table, packaging mechanism still keeps normal work, to realize the purpose of continuity to sensor assembly efficiently packaging in turn.

The application provides a kind of alkali reinforced copper-based material excitation peroxymonosulfate water treatment method and device, it is related to wastewater treatment technical field, the method includes: adding alkali agent, copper-based material, peroxymonosulfate into water to be treated;The alkali agent is sodium hydroxide and / or potassium hydroxide;The copper-based material is copper oxide and / or copper sulfide.The application has the advantages of excellent pollutant treatment effect, mild reaction condition, simple process flow, green environmental protection, energy saving, easy recovery and recycling, etc., realizes the purpose of small dosage of oxidizing agent and catalyst, high utilization rate of oxidizing agent, small amount of metal ion dissolution and pH of effluent reaching standard.

The invention relates to the technical field of catalysts, and particularly discloses a preparation method and application of a supported iridium-based OER catalyst, the supported iridium-based OER catalyst is prepared by adopting an innovative precursor salt double-hydrolysis synthesis method, the synthesis means of the method is simple and controllable, the reaction temperature is controlled to be 60 DEG C, and the reaction time is controlled to be 30 minutes. Compared with a traditional hydrothermal method and an ethylene glycol reduction method, the temperature required by the method is 160 DEG C or above, the method is lower in temperature and more energy-saving, and the method is favorable for obtaining uniformly dispersed ultra-small iridium oxide nanoparticles (2-3 nm). The loading capacity of Ir on a single electrode is 0.014 mg / cm, so that the problem of large use amount of iridium in the existing preparation process is solved, and the production cost is greatly reduced; and the performance of the catalyst is 6 times that of a commercial iridium oxide catalyst, and when the standard potential is 1.6 V, the current density can reach 75 mA cm <-2 >. Through an innovative synthesis strategy, the usage amount of precious metal is effectively reduced, the energy conversion efficiency is improved by the catalyst, and the catalyst has remarkable advantages in the aspects of economy and sustainability.

The present invention provides a light-assisted rechargeable zinc-air battery and a preparation method thereof, belonging to the technical field of metal-air batteries. The technical scheme adopted is: dissolving 2-methylimidazole in anhydrous methanol for ultrasound; placing copper sheet, Zn(NO3)2·6H2O and Fe(NO3)3·9H2O in anhydrous methanol for ultrasound; mixing the above two solutions, centrifuging, washing and drying to obtain FeCu-ZIF powder; dropping N-methylpyrrolidone into a mixture of FeCu-ZIF powder, carbon black and polyvinylidene fluoride, grinding into a paste solid, applying the paste solid on nickel foam, calcining, cooling to room temperature to obtain FeCu-ZIF photoelectrode; assembling the FeCu-ZIF photoelectrode and zinc electrode using a zinc-air battery device, i.e., obtaining a light-assisted rechargeable zinc-air battery. The battery of the present invention uses a FeCu-ZIF photoelectrode with a porous structure, a bimetallic active center and good conductivity on the surface, realizing the synergistic conversion of solar energy, electrical energy and chemical energy in one device, with low economic cost and high energy utilization efficiency.

The invention belongs to the technical field of chlorogenic acid electrochemical sensors, and discloses a portable chlorogenic acid electrochemical sensor and a preparation method thereof, and the method comprises the following steps: S1, preparing a faint yellow powder solid Pd-ZIF-8; s2, weighing a finished product obtained in the step S1, and preparing TA-coated Pd-ZIF-8; s3, weighing a finished product in the step S2 to prepare a PdZn / NP-C dispersion liquid; s4, dropwise adding the dispersion liquid on the surface of a silk-screen printing working electrode to prepare a chlorogenic acid electrochemical sensor; the PdZn / NP coated C / SPE modified working electrode is utilized, and the portable workstation is adopted for testing, so that the problems of poor portability, higher minimum detection limit and narrow detection linear range of the existing detection method are solved.

This invention relates to the field of solid oxide fuel cells, specifically disclosing a method for preparing a cathode material for solid oxide fuel cells, comprising the following steps: mixing raw materials including lanthanum metal salt, nickel metal salt, a complexing agent, and a solvent to obtain an LNO impregnation solution; mixing the LNO impregnation solution with LSCF and then performing a solvothermal reaction to obtain the cathode material. The preparation method of this invention controls parameters such as the concentration of the LNO impregnation solution, the solvent ratio, and the temperature of the solvothermal reaction to regulate the particle size and distribution of La2NiO4 modified on the LSCF surface, thereby shortening the electron and ion transport distance, accelerating the charge transfer process, reducing the cathode polarization resistance, and improving chemical stability.

The utility model discloses an integrated steel plate punching and cutting machine tool, which relates to the technical field of steel plate processing, and comprises a machine tool frame body, a cutting and clamping mechanism, a cutting mechanism, a punching mechanism and a punching connecting and clamping mechanism, the cutting and clamping mechanism comprises a first end cutting and clamping assembly and a second end cutting and clamping assembly, the cutting mechanism is connected with the upper portion of the interior of the machine tool frame body, the punching connecting and guiding clamping mechanism is slidably connected with the third electromagnetic guide rail through a sliding plate, and the punching mechanism is arranged on the upper portion of the interior of the machine tool frame body above the punching connecting and guiding clamping mechanism. The cutting mechanism and the punching mechanism are both arranged on the machine tool frame body, single steel plates passing through the cutting mechanism are connected, guided, transferred and fixed from the first end cutting and clamping assembly and the second end cutting and clamping assembly of the cutting and clamping mechanism through the punching, guiding and clamping mechanism, and the secondary positioning step is omitted; and the transferring and fixing stability of the whole cut single steel plate is high.

The utility model provides a kind of steel pipe automatic loading and unloading transfer car, belong to steel pipe production technical field, the loading and unloading device includes lifting device and turnover plate, the turnover plate one end is hinged with car body, lifting device is set on car body, lifting device other end is hinged with turnover plate;Turnover plate one end is hinged on car body, the process that lifting device drives the other end lifting of turnover plate steel pipe can be very easily transferred to car body or from car body, reduce the difficulty of steel pipe transfer.

The present invention discloses a dustproof photovoltaic component frame, comprising a frame body and a photovoltaic panel. The frame body is composed of four "L"-shaped right-angle frames. The photovoltaic panel is arranged inside the frame body. A cooling component is installed inside the frame body. The cooling component comprises a cooling water pipe component installed inside the frame body. A bottom plate is arranged inside the frame body. The cooling water pipe component is installed inside the bottom plate. A cover plate is installed on the top of the bottom plate. The cooling water pipe component comprises cooling outer pipes installed side by side inside the bottom plate. A supporting tube is installed inside the cooling outer pipe. The present invention provides a dustproof photovoltaic component frame. A refrigerant is installed inside the cooling water pipe, and a closed-loop refrigeration cycle system is formed by connecting and installing an evaporator, so that the cooling water pipe can absorb and disperse heat more quickly. At the same time, the continuity and stability of the cooling effect are maintained through the circulation of the refrigerant.

The invention relates to a preparation method and application of an anti-static PTFE composite film, and belongs to the technical field of high polymer materials. The antibacterial polar fleece fabric comprises the following components in parts by weight: 70-79 parts of powdery polytetrafluoroethylene resin, 20-30 parts of aviation kerosene, 0.3-3 parts of a composite modified antistatic agent and 1-5 parts of nano graphite, maleic anhydride and quaternary ammonium salt in the composite modified antistatic agent cooperate to enhance hydrophilicity and hygroscopicity and effectively eliminate static electricity, in addition, maleic anhydride reacts with the surface of a material to form a conductive layer, charge release is accelerated, static accumulation is reduced, maleic anhydride, a quaternary ammonium salt compound and modified graphite are copolymerized, the antistatic performance is excellent, a wear-resistant protective film can be formed, and the service life of the material is prolonged. The wear resistance of the material is further improved; the anti-static PTFE composite film prepared by the invention not only has an excellent anti-static effect, but also has good wear resistance.

The present invention discloses a preparation method and application of A‑π‑D‑π‑A type corrole donor photovoltaic materials. The A‑π‑D‑π‑A type corrole donor photovoltaic material uses the corrole ring as the central electron-donating unit, pyrrolopyrrole diketo as the electron-withdrawing unit, and is connected to the corrole through a π bridge, thereby forming an A‑π‑D‑π‑A type, forming a push-pull electron effect, and can effectively play the role of electron transmission. The present invention adopts an A‑π‑D‑π‑A type structure as a donor part, which can adjust its LUMO energy level so that the exciton can be better dissociated, and at the same time, the large conjugated main structure enhances the light absorption ability of the photovoltaic material, which can play the role of effectively transferring charges. In addition, the synthesis steps of the A‑π‑D‑π‑A type corrole donor photovoltaic material are explored, which also provides direction for optimizing and developing corrole small molecule donor materials, and has important application prospects in solar cells.