63results about How to "Improve current efficiency" patented technology

This invention provides a carbazole compound, an organic electroluminescent device, and a display device, relating to the field of organic optoelectronic display technology. Through structural design of the carbazole compound, this invention yields a carbazole compound with excellent performance. The organic electroluminescent device prepared using this compound as the host material for the light-emitting layer exhibits low driving voltage and high current efficiency.

The application discloses a high-stability modified manganese dioxide catalyst anode and a preparation method thereof. The anode comprises, from bottom to top, a conductive base, a corrosion-resistant conductive layer, a modified manganese dioxide catalyst layer and a silica gel coating layer; the modified manganese dioxide catalyst layer comprises fluorine and metal co-doped nanometer manganese dioxide and carbon materials, the metal is at least one of niobium, bismuth, tin, cerium, lanthanum, cobalt, silver, nickel, platinum, tantalum, ruthenium, iridium and antimony, and the carbon materials comprise graphene and / or carbon nanotubes; the anode has the characteristics of good stability, high current efficiency and long service life, and the preparation method is simple in operation, mild in reaction condition and low in cost, and is favorable for large-scale production.

The application discloses an electrochemical granulation electrode deintercalation lithium extraction membrane stack electrolysis equipment, which comprises an electrolysis tank and an electrode assembly; the electrolysis tank comprises a first side plate, a piece of side plate rubber pad, a plurality of tank bodies, another piece of side plate rubber pad, a second side plate and a first tank body rubber pad, an anion membrane and a second tank body rubber pad arranged in sequence between two adjacent tank bodies; the tank bodies are divided into anode tanks and cathode tanks, the anode tanks and the cathode tanks are arranged alternately in an X direction from the first side plate to the second side plate, and the number of the anode tanks is equal to that of the cathode tanks; and an elastic porous pad is laid on the inner cavity bottom wall of the tank body. The electrolysis equipment can realize efficient extraction of lithium resources in salt lake brine, has the advantages of high lithium recovery rate and current efficiency, and is convenient to install, maintain and observe and monitor in the lithium extraction process.

The present application provides an organic material composition and its application, the organic material composition includes the fused heterocyclic compound containing quinoline structure and hole transport type compound, the fused heterocyclic compound containing quinoline structure has the structure as shown in formula (1), the hole transport type compound has the structure as shown in formula (2).The composition of the present application makes the organic electroluminescent device have lower driving voltage (3.85 V or less), higher current efficiency (25 Cd / A or more) and longer life (267 h or more).

The application provides a composition containing an indolocarbazole compound, an intermediate and an organic electroluminescent device. The composition contains at least one first compound and at least one second compound; the first compound is obtained by fusing a group shown in formula I-A with any two adjacent carbon atoms on ring A in a group shown in formula I; and the second compound is selected from any one of compounds shown in formulae II-1, II-2 and II-3. The composition provided by the application can be used as a light-emitting layer host material to prepare an organic electroluminescent device, and the prepared organic electroluminescent device has a lower driving voltage, a higher current efficiency and a longer service life.

The invention relates to the technical field of oil and gas fracturing flow-back fluid treatment, and particularly discloses a boron-doped diamond electrode electrooxidation system and method for treating fracturing flow-back fluid. According to the method for treating the fracturing flow-back fluid, before the fracturing flow-back fluid enters an electrooxidation unit, sulfide is efficiently removed, poison and competitive oxidation of the fracturing flow-back fluid to an electrode are eliminated, a BDD electrode is protected, a foaming agent is synchronously removed through aeration enrichment, the problem of foam interference in the flow-back fluid treatment process is fundamentally solved, and continuous and stable operation of a system is guaranteed; after the electro-oxidation unit, active chlorine (pypocholoride / chlorine) is effectively removed and recycled, so that waste is treated by waste, the oxidation efficiency is improved, and the dosage of chemicals is reduced. Through the collaborative design, the interference and foam problems of sulfide with high chloride ion content and strong reducibility are collaboratively optimized, and the treatment efficiency, economical efficiency and stability of the system are integrally improved.

The invention discloses a chlor-alkali industry brine excess alkali amount optimization method and system based on AI online analysis. The method comprises the following steps: acquiring multi-source data in a chlor-alkali production process, and preprocessing the multi-source data to form structured data; inputting the structured data into a pre-constructed AI decision model for variable correlation analysis, and outputting a real-time influence coefficient of each parameter on the excess alkali amount; selecting a plurality of parameters which have the maximum influence on the excessive alkali amount from the real-time influence coefficients, calculating the optimal control interval of the excessive alkali amount in combination with the process requirements and the optimal targets of energy consumption and raw material consumption, and generating an optimization scheme according to the priority; and adjusting the salt water excess alkali amount data in the chlor-alkali industry according to the optimization scheme. According to the method, the incidence relation between the excessive alkali amount and all the influence parameters is tracked in real time through the dynamic AI model, working condition changes are accurately captured and rapidly responded, the excessive alkali amount control precision is improved, and impurity residues caused by insufficient excessive alkali amount and technological hidden dangers caused by too high excessive alkali amount are effectively avoided.

This invention discloses an aluminum-containing heavy water-based electrolyte, its preparation method, and its applications. The electrolyte comprises a solvent and a solute. The solvent includes heavy water, a deuterated solvent, and a low-barrier hydrogen bond reconstructing agent. The solute comprises a main aluminum salt and an auxiliary monovalent metal salt. This electrolyte can construct low-barrier hydrogen bonds in solution by controlling the solvent composition, significantly reducing the activity of water in the solution, improving the electrochemical stability of the solution, and suppressing side reactions. Simultaneously, it improves the electrochemical reaction behavior of aluminum in the solution and at the electrolyte / electrode interface, which is beneficial for improving the electrochemical deposition efficiency of aluminum in aqueous solution.

The application discloses an IBC battery and a preparation method thereof. The method comprises the following steps: providing an N-type silicon substrate, wherein the N-type silicon substrate comprises a front surface and a back surface which are opposite to each other; the back surface comprises a first region and a second region which are arranged in an interdigital manner; a first tunneling oxide layer and a first doped layer are prepared on the first region; a second tunneling oxide layer and a second doped layer are prepared on the second region; a texturing process is performed on the front surface and the interval region by using a preset texturing process to form a textured structure; a first passivation layer is prepared on the surface of the back surface which is away from the N-type silicon substrate, and a second passivation layer is prepared on the surface of the front surface which is away from the N-type silicon substrate; screen printing and high-temperature sintering are performed on the first region and the second region to form a first electrode which is in contact with the first doped layer on the first region and a second electrode which is in contact with the second doped layer on the second region, thereby obtaining the IBC battery. By using the method, the reflectivity of the textured structure is reduced, and the conversion efficiency of the battery is improved.

This invention relates to the field of organic optoelectronic material preparation technology, specifically to a boron-nitrogen compound, an organic electroluminescent device containing the same, and its applications. The boron-nitrogen compound provided by this invention introduces a benzene ring into the donor unit to increase the conjugation length of the donor backbone. This, on the one hand, modulates the HOMO energy level of the luminescent molecules, which is beneficial for hole transport between the hole transport layer (or electron blocking layer) and the luminescent layer; on the other hand, it enhances the carrier transport performance between host and guest molecules. Simultaneously, the introduction of sterically hindered spirocyclic rings and substituted spirocyclic groups effectively suppresses the aggregation quenching effect between luminescent molecules and inhibits non-radiative transitions. Using the boron-nitrogen compound of this invention as the luminescent layer material to fabricate an organic electroluminescent device can significantly improve the device's current efficiency while also achieving a substantial increase in device lifetime, thus possessing greater application value.

This invention relates to a compound containing a pyranoquinoxaline structure and its applications, belonging to the field of organic electroluminescent materials technology. The compound containing the pyranoquinoxaline structure has the following structural formula: Ar is selected from aromatic hydrocarbon groups with 6-30 carbon atoms (deuterated or undeuterated) and heteroaryl groups with 5-30 carbon atoms (deuterated or undeuterated), wherein the heteroatoms in the heteroaryl group are selected from N, S, and O. The compound containing the pyranoquinoxaline structure is used in organic electroluminescent devices. The compound containing the pyranoquinoxaline structure of this invention, used as a host material and electron transport material in organic electroluminescent devices, can restrict carrier flow within the light-emitting layer, providing better device performance, including lower driving voltage, higher current efficiency, and extended lifespan. It significantly improves device lifespan and has good application effects in OLED light-emitting devices, showing promising industrialization prospects.

This invention provides a carbazole-substituted phenanthrene compound, an intermediate, and an organic electroluminescent device. The carbazole-substituted phenanthrene compound has the structure of Formula I. By designing the structure of the carbazole-substituted phenanthrene compound, this invention prepares a high-performance carbazole-substituted phenanthrene compound. Organic electroluminescent devices prepared using this carbazole-substituted phenanthrene compound as the light-emitting layer material exhibit high current efficiency, long lifetime, and low driving voltage.

This invention relates to a method for fabricating metal circuits on a ceramic substrate. The method involves surface treatment of aluminum nitride ceramics, selection of transition layers, and preparation of the crystal orientation of the metal layers. By fabricating a multilayer structure of insulating oxides, conductive oxides, and conductive metal layers, and introducing a Cu(111) layer, the conductivity of the thin-layer metal is enhanced. The method includes the following steps: Step 1: Cleaning the aluminum nitride ceramic substrate blank with nitric acid and / or deionized water, and performing a chemical reaction in an HF solution of appropriate concentration and at a heating temperature of appropriate degrees Celsius for a corresponding time period to prepare a buffer layer; Step 2: Preparing a multilayer structure of conductive oxides and / or conductive metal layers by magnetron sputtering; Step 3: After completing Step 2, photolithography is applied to the ceramic substrate to form a circuit pattern; Step 4: Electroplating the patterned circuit on the ceramic substrate to form an electrical connection surface layer; Step 5: Annealing the ceramic substrate after Step 4.

This invention belongs to the field of metal material corrosion protection technology, specifically relating to a highly active aluminum alloy sacrificial anode for full ocean depth and its preparation method. The sacrificial anode uses Al as the main raw material, with added alloying elements: Zn, In, Ga, Mg, Ti, Ca, and Mn. The preparation method involves first heating Al and Zn to 750–1000℃, then adding In, Ga, Mg, Ti, Ca, and Mn, and finally casting at a temperature of 700–750℃. By adding Ca, an octet aluminum alloy sacrificial anode for full ocean depth is formed. The activation ability is improved by the dissolution and redeposition of In and Ga, the disruption of the continuity and density of the oxide layer by Zn and Mg, and the activation of the Al matrix surface by micron-level dot pairs. At the same time, Ti refines the grain size, resulting in a uniform and segregated distribution of alloying elements, avoiding internal self-corrosion, and improving current efficiency. It can be applied to full ocean depth environments from 0 to 10000 meters, with a current efficiency of 90–95%.

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a nitrogen-containing heterocyclic compound and an organic electroluminescent device thereof. According to the nitrogen-containing heterocyclic compound provided by the invention, through accurate design and coordinated regulation of a molecular structure, an energy barrier of electron transmission is effectively reduced, and efficient electron injection and transmission are realized, so that a device can achieve high brightness and high current efficiency under low driving voltage, and the power consumption of the device is reduced. The nitrogen-containing heterocyclic compound provided by the invention has a very good crystal structure and film form, and can prolong the service life and work stability of a device. Meanwhile, the nitrogen-containing heterocyclic compound provided by the invention also has proper HOMO energy level and LUMO energy level, can be well matched with an adjacent organic functional layer in energy level, can effectively reduce interface defects and charge recombination, and improves the overall photoelectric conversion efficiency and stability of a device.

The application provides a phenoxazine compound and application thereof, and relates to the technical field of organic electroluminescent materials. The phenoxazine compound can effectively improve the photoelectric performance and service life of an OLED device as a hole transport material.

The lifting device comprises at least one continuous anode, the periphery of the continuous anode is sleeved with a clamping frame, a plurality of anode guide rods are arranged between the clamping frame and the continuous anode, and a pressing mechanism enabling the anode guide rods to make contact with the continuous anode is installed on the clamping frame. A lifting mechanism is arranged at the upper end of the clamping frame and comprises a first driver, a second driver and a lifter, a lifter connector connected with the second driver is arranged on the upper portion of an output shaft of the lifter, an anode bus is arranged on the outer side of the anode guide rod, and a soft belt connected with the anode bus and the anode guide rod closest to the anode bus is arranged between the anode bus and the anode guide rod. According to the invention, the synchronism of the continuous anodes is ensured, the accuracy of electrode distance and cell voltage control is improved, the thermal balance of the electrolytic cell is maintained, the energy consumption is reduced, the current efficiency is improved, and the technical problems in controlling the electrode distance and regulating and controlling the distance between an anode guide rod and an aluminum oxide crust are thoroughly solved.

This invention provides a fused-ring compound and its application. The fused-ring compound has the structure shown in Formula I. The fused-ring compound of this invention is used as a hole transport material, which can improve the efficiency of organic light-emitting elements, extend their lifetime, and reduce the driving voltage. Organic electroluminescent devices using the fused-ring compound of this invention as a hole transport material have lower driving voltage, higher current efficiency, and extended lifetime.

The present application relates to an electroluminescent device comprising a compound of formula (I) and a compound of formula (II) and a display device comprising said organic electroluminescent device.

The application discloses a preparation method and application of an inert metal tungsten anode for low-temperature electrolytic aluminum of ionic liquid, and relates to the technical field of electrolysis. The preparation method of the porous tungsten inert anode provided by the application comprises raw material proportioning, raw material mixing, vacuum sintering and electrode purification. The method combines a discharge plasma sintering process with an electrochemical dissolution process to prepare the porous tungsten anode with a pore diameter of 1-10 microns. The anode has excellent electrochemical stability and corrosion resistance, can effectively promote the desorption of anode chlorine gas bubbles in the electrolysis process, and can effectively reduce the voltage of the low-temperature electrolytic aluminum system of ionic liquid.

An organic electroluminescent material and its device are disclosed. The organic electroluminescent material comprises a metal M and a ligand L having a structure of Formula 1. a A metal complex comprising the metal complex is disclosed, which can be used as a luminescent material in electroluminescent devices. Applying the metal complex to electroluminescent devices can achieve higher current efficiency, power efficiency, external quantum efficiency, and longer device lifetime at low driving voltages, thereby improving the overall performance of the device. An electroluminescent device comprising the metal complex and a compound composition comprising the metal complex are also disclosed.

The invention provides a multi-junction solar cell and a preparation method thereof, and relates to the technical field of solar cells, the multi-junction solar cell comprises a first junction sub-cell and at least one second junction sub-cell, and the first junction sub-cell comprises a Ge substrate, a nucleation layer and a composite function buffer layer. The composite function buffer layer comprises a first function layer and a second function layer, the first function layer is an InGaAs layer, and the second function layer is a GaAs layer or an AlGaAs layer, 0lt; and x is less than or equal to 0.3. The lattice constant of the first functional layer in the multi-junction solar cell is between the lattice constants of Ge and GaAs / AlGaAs, so that the first functional layer can be used as a lattice transition layer between the Ge substrate and the composite functional buffer layer above the Ge substrate, and the first-junction sub-cell has an optimized band gap combination; the solar cell can be well matched with the middle cell and the top cell on the upper side in solar spectral response.

This invention discloses a power amplifier and electronic device employing a thin-gate device. The power amplifier uses a fully thin-gate low-threshold voltage transistor architecture, amplifying signals through multiple parallel cascode amplification units. The gate of the input stage transistor is coupled to the input signal via a DC-blocking capacitor, and the drain of the cascode transistor is connected to the power supply via an inductor. By introducing a segmented complementary gain control strategy—selectively turning off the input stage transistor while keeping the cascode transistor on in the high-power output range, and selectively turning off the cascode transistor while keeping the input stage transistor on in the low-power output range—this invention overcomes the performance limitations of traditional hybrid gate oxide schemes, significantly reducing parasitic capacitance and dynamic power consumption, and improving conversion efficiency. It simultaneously resolves the contradiction between the withstand voltage safety and deep turn-off of thin-gate devices, ensuring reliability across the entire power range; and simplifies the manufacturing process and optimizes current efficiency.

This invention relates to a Ru / C cluster catalyst for the electrocatalytic PTA-to-CHDA reaction, its preparation method, and its application. The method employs a molten salt electrolyte containing carbonate; a Ru-containing compound and a morphology control agent are mixed with the molten salt electrolyte; heating is performed to form an ion-conducting molten electrolyte system; electrolysis at constant potential or constant current allows the Ru element in the precursor and the C element in the carbonate to be co-electrodeposited on the cathode surface, forming a supported metal catalyst; after electrolysis, cooling is performed, and the catalyst is collected from the cathode, washed, and dried to obtain the supported metal catalyst. This invention provides a one-step in-situ generation of amorphous carbon-supported supported Ru / C catalysts, effectively simplifying the complex multi-step preparation process of traditional catalysts, reducing energy consumption and production costs, and solving the problem of existing technologies struggling to prepare Ru-group cluster catalysts with uniform size, good dispersibility, and high stability.

This invention provides a multifunctional bipolar membrane electrodialysis device, belonging to the technical field of electrodialysis separation equipment. The multifunctional bipolar membrane electrodialysis device includes a working chamber, a stacked membrane assembly, a brine storage tank, an acid storage tank, an alkali storage tank, an electrode liquid storage tank, and four peristaltic pumps. The four peristaltic pumps are fixed inside the working chamber, and the stacked membrane assembly is fixed at the front end of the working chamber. The left electrode chamber frame plate, acid chamber frame plate, brine chamber frame plate, alkali chamber frame plate, and right electrode chamber frame plate are all square flat plates with flow channels formed between the inlet and outlet channels. The flow channels contain horizontally staggered guide plates, each with a row of serrations on its lower surface. The horizontally staggered guide plates combined with the serrated flow disturbance structure in the flow channels force solution agitation and diffusion, prolonging the flow time of the solution within the flow channels, covering the entire membrane surface, eliminating dead zones and short-circuit flow, and significantly improving ion migration efficiency and current efficiency.

The invention provides a triarylamine compound containing a benzimidazole structure and an organic electroluminescent device, and relates to the technical field of organic photoelectric materials. When the triarylamine compound is applied to the organic electroluminescent device as a main body material, the driving voltage of the organic electroluminescent device can be reduced, the luminous efficiency and brightness of the organic electroluminescent device can be improved, and the service life of the organic electroluminescent device can be prolonged.

This invention provides an organic compound, an organic electroluminescent device, and a display device. The organic compound has the structure shown in Formula I. In this invention, by designing the compound structure, the obtained compound is used as the light-emitting layer material of the OLED light-emitting device, so that the OLED light-emitting device has a lower driving voltage, higher current efficiency, and longer lifespan.

The utility model relates to the technical field of electrolytic aluminum production. The electrolytic bath temperature online monitoring device comprises a base, a mechanical arm and a crust breaking temperature measuring assembly, one end of the mechanical arm is arranged on the base, and the other end of the mechanical arm is connected with the crust breaking temperature measuring assembly; the mechanical arm is used for controlling the crust breaking and temperature measuring assembly to conduct crust breaking and temperature measuring operation. The crust breaking and temperature measuring assembly is carried by the mechanical arm to achieve automatic crust breaking and temperature measuring, safety risks such as scalding and gas injury caused by manual operation in dangerous environments such as high temperature and easy gas leakage are avoided, meanwhile, the labor intensity of operators is reduced, operation errors caused by manual fatigue are avoided, and the working efficiency is improved. Therefore, the problems of high labor intensity, high safety risk, low measurement frequency, poor data real-time performance and temperature adjustment lagging existing in manual measurement in traditional electrolytic bath temperature monitoring are solved.

This utility model discloses an electrolyzer for a water electrolysis hydrogen production device, comprising a tank body and a sealing cover. A front-end plate is located on the left side of the tank body, and a rear-end plate is located on the right side. Multiple bipolar plates are fixedly arranged at intervals inside the tank body. Between adjacent components—between the front-end plate and the first bipolar plate, between each bipolar plate, and between the last bipolar plate and the rear-end plate—a porous anode electrode, a diaphragm, and a porous cathode electrode are sequentially sandwiched, forming multiple electrolysis chambers. Each electrolysis chamber has an electrolyte inlet at its rear and an anolyte outlet and a catholyte outlet at its front, corresponding to the anode and cathode flow fields, respectively. This utility model provides a short-range, directional flow channel for each reaction unit by setting independent electrolyte inlets and anolyte outlets at the front. This design ensures that the electrolyte can be rapidly and uniformly supplied to each electrode surface, improving current efficiency and saving energy.

The invention provides a triphenylene compound, an intermediate and an organic electroluminescent device. The triphenylene compound has a structure as shown in a formula I. The structure of the triphenylene compound is designed, so that the triphenylene compound is suitable for being used as a main body material of a light-emitting layer of the organic light-emitting device, and the organic light-emitting device has relatively low driving voltage, relatively high current efficiency and relatively long service life.