92 results about "Charge transfer efficiency" patented technology

The invention belongs to the field of battery materials, and discloses a ferric sodium pyrophosphate material as well as a preparation method and application thereof. The preparation method of the ferric sodium pyrophosphate comprises the following steps: step 1, mixing a phosphorus source, an iron source, a sodium source, a biomass carbon source and an alcohol additive, and uniformly stirring to obtain a mixed material A; step 2, carrying out hydrothermal reaction on the mixed material A, and then centrifuging and drying to obtain an intermediate product B; and 3, roasting the intermediate product C in a protective atmosphere to obtain the carbon-coated ferric sodium pyrophosphate. A three-dimensional conductive network is formed after the biomass carbon source and the NFPP are compounded, the interface resistance is reduced, the charge transfer efficiency is improved, and after the biomass carbon source is carbonized, biomass carbon with mechanical supporting and buffering effects can relieve volume expansion of the NFPP in the charge-discharge or reaction process and inhibit material pulverization, so that the cycling stability is improved.

This disclosure provides a charge pump circuit. The charge pump circuit according to this disclosure includes one or more cascaded boost units and output units having the same structure. Each boost unit has a dual-branch structure with top and bottom symmetry and connected to two sets of four-phase clock signals with opposite clock phases. By adjusting the phase relationship of the four-phase clocks, the rise time of the gate voltage of the transfer transistor can be delayed by advancing the falling edge of the driving clock of the secondary capacitor and delaying its rising edge. This ensures that the transfer transistor is in the off state at the moment of high-low phase switching, thereby avoiding the problem of reduced charge transfer efficiency caused by reverse charge flow between the input and output nodes of the boost unit.

The invention discloses a preparation method of a sodium-ion battery negative electrode material and a sodium-ion battery, and relates to the technical field of sodium-ion battery negative electrode materials. The invention relates to a sodium ion battery negative electrode material. The negative electrode material comprises a substrate and a coating covering the surface of the substrate, the coating is composed of the following components in parts by mass: 20-40 parts of epoxy resin, 5-10 parts of an isocyanate curing agent, 10-20 parts of an inorganic filler, 2-6 parts of a UV reactive diluent, 5-10 parts of a conductive material, 1-3 parts of a photoinitiator and 0.5-2 parts of a conductive stabilizer. By introducing the novel conductive stabilizer, the electron migration resistance is effectively reduced, and the charge transfer efficiency of a coating and a matrix interface is optimized, so that the conductivity of the negative electrode material is remarkably improved.

The invention relates to a high-entropy alloy aerogel material with a dielectric near-zero characteristic as well as a preparation method and application of the high-entropy alloy aerogel material. The high-entropy alloy aerogel material is a three-dimensional porous structure material prepared from Cu, Co, Ni, Ag and Bi metal salts through a freeze thawing method. Compared with the prior art, the high-entropy alloy aerogel material prepared by the preparation method disclosed by the invention realizes the dielectric near-zero characteristic near the radio frequency of 10.3 MHz, also has higher charge transfer efficiency, and has important significance in the design aspect of radio frequency electronic devices.

The invention discloses a method for improving the performance of an image sensor and the image sensor, the image sensor comprises a pixel array formed by a plurality of pixel units, each pixel unit comprises a plurality of sub-pixel units, and each sub-pixel unit comprises a sub-pixel photodiode and a transfer transistor corresponding to the sub-pixel unit. The areas, close to the transfer transistor, of the sub-pixel photodiodes of the sub-pixel units are isolated, and the areas, away from the transfer transistor, of the sub-pixel photodiodes of the sub-pixel units are connected. According to the method for improving the performance of the image sensor and the image sensor provided by the invention, on one hand, the dynamic range is improved by improving the upper limit of the full-well capacitance; on the other hand, different numbers of transfer transistors are matched for simultaneous reading under different brightness conditions, and both the speed of the transfer transistors and the driving load of the transfer transistors are improved, so that the charge transfer efficiency is improved, and the reading time is shortened.

The utility model relates to lead -acid battery technical field, concretely is a kind of lead -acid battery current collector structure, including frame, recess is opened in the frame, the recess is equipped with porous carbon framework, the porous carbon framework is equipped on battery current collector main body, the battery current collector main body is attached with a layer of carbon cloth, the battery current collector main body is by surface body, aperture plate and grid three parts are composed, the grid is attached with one side graphene coating layer. The recess in the lead -acid battery current collector frame of the device is equipped with one side porous carbon framework, can increase the utilization of active material, improve the charge transfer efficiency of battery, the surface body of battery current collector main body is equipped with graphene coating layer, can significantly reduce the corrosion of surface body, improve the conductivity and current density of battery, the lead -acid battery current collector surface layer is equipped with a layer of carbon cloth, wherein carbon cloth and lead -acid battery current collector cooperate and have the charge-discharge performance and cycle life of the improvement of lead -acid battery.

The application discloses a graphene quantum dot / indium sulfide electromagnetic wave absorbing material and a preparation method thereof, and comprises the following steps: carrying out a hydrothermal reduction reaction on trinitro-pyrene and an alkaline solution to obtain graphene quantum dot powder rich in hydroxyl functional groups on the surface; and carrying out a hydrothermal reaction on a mixture of indium chloride tetrahydrate and thioacetamide and the graphene quantum dot powder to obtain a graphene quantum dot / indium sulfide heterojunction electromagnetic wave absorbing material with a sulfur vacancy concentration of 3.8% to 5.7%. The addition amount of the sulfur source is controlled by regulating the addition amount of the thioacetamide in the hydrothermal reaction process, the introduced sulfur vacancy concentration is accurately controlled, the In-O covalent bond is formed at the interface between the graphene quantum dot and the indium sulfide, the interface covalent bridging structure is formed, the interface charge transfer efficiency is accelerated, the built-in electric field in the interface is enhanced, stronger interface polarization loss is induced, and the performance of high absorption intensity and wide bandwidth of the composite wave absorbing material is realized.

The invention relates to the technical field of new energy storage, and discloses a thermoelectric energy storage battery, comprising: a sulfur gradient doped copper ferrocyanide positive electrode; a copper negative electrode; a thermal response type gradient concentration electrolyte; an asymmetric heat exchange layer; the photovoltaic panel material layer is deposited on the battery shell; a preparation method of a thermoelectric energy storage battery comprises the following steps: S1, coprecipitating a copper nitrate solution and a potassium ferricyanide solution at a flow rate of 0.1-0.3 ml / min at 4-6 DEG C to generate a nano precursor; and S2, in a mixed atmosphere of H2S and N2, annealing is performed at 250-320 DEG C, the volume fraction of H2S is linearly adjusted from 10% to 30% along with the temperature, and sulfur gradient doping is formed. By constructing a sulfur gradient doped copper ferrocyanide positive electrode structure, stable electrochemical response of the material in a thermally driven environment is realized, and the problems of non-uniform lattice expansion and low interface charge migration efficiency in a thermal field are solved.

The invention relates to the technical field of supercapacitor preparation, in particular to a (NiCo) Se2 / CoFe2Se4 composite electrode, a preparation method and application, and the method comprises the steps: preparing a NiCo precursor solution through Ni salt, Co salt and urea, growing NiCo precursor nanorods on a titanium mesh, and constructing a three-dimensional conductive skeleton; then preparing a Co-FePBA suspension by using Co salt, sodium citrate and K3 [Fe (CN) 6]; the titanium mesh loaded with the NiCo precursor nanorod is soaked in Co-FePBA suspension and aged at the constant temperature, a double-active-component precursor is formed, effective interface chemical bonding is formed, and the charge transfer efficiency can be effectively improved; finally, a (NiCo) Se2 / CoFe2Se4 heterojunction is generated through gas-phase selenylation, charges are redistributed at a heterogeneous interface, a built-in electric field is formed, and electron transfer and ion adsorption are accelerated; according to the method, the reaction kinetics of collaborative optimization of the (NiCo) Se2 and the CoFe2Se4 is realized, the process is simple, convenient, environment-friendly and economical, a feasible scheme is provided for large-scale production, and the problems of compounding of the (NiCo) Se2 and the CoFe2Se4, high charge transfer resistance and poor charge and discharge efficiency in the prior art are solved.

The invention discloses a carbon-coated lithium iron phosphate positive electrode material, a preparation method thereof and a lithium ion battery. An energy density synergist is added into a lithium iron phosphate material, uniform anchoring on the surfaces of lithium iron phosphate particles is achieved, the electronic conductivity is improved, the structural stability is enhanced, the first coulombic efficiency is improved, the specific capacity is improved, a boron-oxygen cluster structure in the energy density synergist provides multiple coordination sites, Li < + > is specifically adsorbed through the Lewis acid-base effect, and the specific adsorption capacity is improved. Lithium ion migration energy barriers are reduced, and the charge transmission efficiency is improved. A rigid framework of polyhedral oligomeric silsesquioxane is embedded into a carbon layer to form a nano support body, so that the lattice volume expansion in the charge-discharge process is effectively inhibited, and the structural stability of the material is improved.

The invention discloses an MIL-68 metal organic framework / III-nitride nanorod array photo-anode as well as a preparation method and application of the MIL-68 metal organic framework / III-nitride nanorod array photo-anode. The photo-anode comprises a Si substrate, an InN or / and GaN nano-pillar array grown on the Si substrate, and an MIL-68 (In / Ga) metal organic framework layer grown on the surface of the nano-pillar array in situ, wherein the MIL-68 (In / Ga) metal organic framework layer is of a three-dimensional columnar structure. According to the invention, the MIL-68 (In / Ga) metal organic framework is introduced to the surface of the III-nitride nanopillar array, so that the self-driven assembly of an interface is realized, and the interface bonding strength and charge transfer efficiency of the photoelectrode are remarkably enhanced. The photoanode shows excellent stability and high efficiency in the photoelectrochemical water decomposition and organic pollutant degradation process, and has wide application prospects in new energy conversion and environmental governance.

The invention discloses a FeOOH / BiVO4 composite photo-anode, a temperature synergistic activation method for optimizing the performance of the FeOOH / BiVO4 composite photo-anode and application of the FeOOH / BiVO4 composite photo-anode, and belongs to the technical field of photoelectric catalytic materials and new energy. The FeOOH / BiVO4 composite photo-anode is formed by loading a cocatalyst layer FeOOH on the surface of a BiVO4 nano-structure substrate. The core of the invention lies in finding that the specific composite photo-anode system has a unique temperature-activity synergistic effect at an electrolyte temperature of about 40 DEG C. At the temperature, the FeOOH cocatalyst and the BiVO4 substrate not only exert respective catalytic advantages, but also realize maximization of interface charge transfer efficiency and remarkable acceleration of reaction kinetics through temperature field regulation and control, so that the photoelectrocatalytic water oxidation activity reaches a peak value, and the stability is far superior to that of a single BiVO4 photoanode. According to the method, a composite material system and the optimal working temperature of the composite material system are accurately matched, so that the cooperation of material design and working condition optimization is realized, and a new technical path and theoretical guidance are provided for developing efficient and stable composite photoelectric devices.

The invention discloses a charge directional separation phthalocyanine-based COF (Covalent Organic Framework) material as well as a preparation method and application thereof, and belongs to the technical field of covalent organic framework materials. The structural formula of the charge directional separation phthalocyanine-based COF material is as shown in a formula (I), phthalocyanine is used as a framework, an AA stacked layered structure is formed, electrons are attracted by metal cores, in-plane charge transfer is reduced, out-of-plane charge transfer becomes a main channel for carrier transport, carrier directional separation transfer is generated, and the charge transfer efficiency is improved. And the carrier recombination rate is obviously reduced, and the photocatalytic hydrogen production efficiency is improved. Besides, the COF material prepared by the method has excellent stability and cannot be decomposed in water, acid, alkali and common organic solvents (such as methanol, acetone, tetrahydrofuran, N, N-dimethylformamide and the like). The charge directional separation phthalocyanine-based COF material prepared by the invention also has huge potential in application in the aspects of gas storage, sensing and the like.

The invention discloses a carbon / M1S / M2S bimetallic composite material with a heterogeneous interface as well as a preparation method and application thereof, and belongs to the field of environmental microbial electrochemistry. The carbon / M1S / M2S bimetallic composite material is of a multi-stage porous structure, and a heterogeneous interface is constructed on a carbon-based binary heterogeneous composite bimetallic sulfide; the heterogeneous interface is an interface of two crystal grains of M1S and M2S; according to the invention, MOF is adopted as a template, and a composite material (carbon / M1S / M2S) with an M1S4 / M2S binary heterogeneous structure is prepared through hydrothermal and sulfuration processes. Interface coupling between M1S and M2S is utilized to optimize distribution of interface charges, so that the charge transfer efficiency in the electrode is improved, and direct electron transfer kinetics mediated by a terminal electron acceptor is promoted. The carbon / M1S / M2S heterojunction obviously improves the performance of a microbial electrochemical system and shows excellent long-term stability.

The application belongs to the technical field of photocatalytic hydrogen production, and particularly relates to a Z-type heterojunction Mn3O4@CdIn2S4 composite material and a preparation method and application thereof. The application synthesizes Mn3O4 microspheres by taking Mn-MOF as a precursor, in-situ grows a CdIn2S4 (CIS) shell, and prepares core-shell type Mn3O4@CdIn2S4 microspheres, and simultaneously forms a Z-type heterojunction. Compared with CdIn2S4 and Mn3O4, the photocatalytic performance of Mn3O4@CdIn2S4 under simulated sunlight is significantly improved. On one hand, the Z-type electron transfer path not only improves the electron-hole separation efficiency, but also improves the charge transfer efficiency. On the other hand, the existence of the core-shell heterojunction increases the light absorption range.

The invention discloses a method for optimizing the performance of a bismuth vanadate photo-anode by regulating and controlling the temperature of an electrolyte and application of the method, and belongs to the technical field of photoelectrochemical energy conversion. The method comprises the following steps: placing a bismuth vanadate photo-anode in an alkaline electrolyte, and controlling the temperature of the alkaline electrolyte to be 52-54 DEG C when a photoelectrocatalysis water decomposition reaction is carried out. According to the invention, the electrolyte is accurately controlled within the temperature range to carry out the photoelectrocatalytic water decomposition reaction, so that the photocurrent density, the photoelectric conversion efficiency (ABPE) and the charge transfer efficiency can be remarkably improved. According to the invention, the nonlinear influence rule of the electrolyte temperature on the charge transfer behavior of the BiVO4 / electrolyte interface is systematically disclosed for the first time, and the action mechanism is similar to that in a periodic structure, band gap optimization and energy transfer efficiency maximization are realized through parameter tuning. The method does not need to carry out complex modification on an electrode material, is simple to operate, low in cost and good in repeatability, and provides a new optimization strategy and application guidance for design and operation of a high-efficiency solar fuel conversion device.

The invention discloses conductive hydrogel as well as a preparation method and application thereof, and relates to the technical field of conductive hydrogel materials. The preparation method comprises the following steps: dispersing nanocellulose into a hydrophilic and hydrophobic monomer precursor solution, adding an amphiphilic monomer, inducing microphase separation by utilizing thermodynamic incompatibility, and carrying out thermal initiation polymerization. The hydrogel is internally provided with a micro-phase separation structure formed by self-assembly, and nanocellulose is distributed on a phase interface to form a continuous ion channel. Through microstructure regulation and control, the mechanical strength, toughness and ionic conductivity of the material are effectively coordinated, and meanwhile, the material is endowed with excellent water-retaining property and environmental stability. The preparation process is simple and does not need complex equipment. The conductive hydrogel is particularly suitable for being used as a negative electrode friction layer of a friction nano-generator, can remarkably improve the charge transfer efficiency and the device output performance, and has important application value in the fields of flexible electronics, intelligent sensing and the like.

This invention discloses a bootstrap charge pump structure, comprising: a clock control logic circuit, a bootstrap switch array, a boost capacitor, and an input voltage buffer. The clock control logic circuit is connected to the bootstrap switch array and is used to generate a four-phase non-overlapping clock to control the orderly activation of the switches in the bootstrap switch array. The bootstrap switch array is connected to the boost capacitor, and the clock control logic circuit boosts the voltage of the boost capacitor. The input voltage buffer is connected to the bootstrap switch array and is used to provide an adjustable voltage input to the bootstrap switch array. This invention improves the charge transfer efficiency of the charge pump and reduces resistance, representing an efficient bootstrap charge pump structure.

The invention relates to a flower-like metal oxide heterojunction and a preparation method and application thereof, the flower-like metal oxide heterojunction is composed of cobalt oxide and platinum, has a high specific surface area and a hierarchical porous structure, and is helpful for improving the enrichment ability of metabolites and the laser ionization efficiency, thereby significantly improving the detection sensitivity based on MALDI mass spectrometry. By constructing a heterojunction interface, the charge transfer efficiency and the local surface plasmon effect are enhanced, the signal intensity is improved, the background noise is effectively inhibited, and the signal reproducibility and the detection stability are improved.

To enhance a charge transfer efficiency in a transfer gate having a vertical gate electrode. A solid-state imaging element includes a photoelectric conversion section, a charge accumulating section, and a transfer gate. The photoelectric conversion section is formed in a depth direction of a semiconductor substrate, and generates charges corresponding to a quantity of received light. The charge accumulating section accumulates the charges generated by the photoelectric conversion section. The transfer gate transfers the charges generated by the photoelectric conversion section to the charge accumulating section. The transfer gate includes a plurality of vertical gate electrodes which is filled to a predetermined depth from an interface of the semiconductor substrate, and at least a part of a diameter is different in the depth direction of the semiconductor substrate.

The invention belongs to the field of new energy and new materials, and relates to a precursor-oriented CuCo2S4 counter electrode with different morphologies and a preparation method and application thereof. According to the preparation method, a precursor guiding strategy is adopted, nano flower-shaped CuCo2S4, nano sheet-shaped CuCo2S4, nano particle-shaped CuCo2S4 and nano microsphere-shaped CuCo2S4 can be prepared through a simple solvothermal reaction method, the preparation method is simple and convenient, the morphology controllability is high, and a complex template agent is not needed. The prepared nanoflower-shaped CuCo2S4 shows the maximum specific surface area and charge transfer efficiency, the photoelectric conversion efficiency of a QDSSCs device corresponding to the nanoflower-shaped CuCo2S4 can reach 7.42% and is remarkably higher than the highest conversion efficiency of QDSSCs assembled by CuCo2S4 counter electrodes in other shapes and existing CdS / CdSe sensitized QDSSCs based on the CuCo2S4 counter electrodes, and the electro-catalytic performance is remarkably improved. The CuCo2S4 material prepared by the method is suitable for various electrolyte systems, shows excellent stability and catalytic performance in polysulfide electrolyte, and is expected to replace a complex noble metal system and a traditional binary Cu2S-based counter electrode system.

The invention discloses a bifunctional catalyst for a direct methanol fuel cell, a structural unit of the bifunctional catalyst takes a carbon nanotube as a conductive substrate, defects are introduced on the surface through dielectric barrier discharge, and high-entropy alloy nanoparticles consisting of five transition metal elements are loaded on the surface. The preparation method comprises the following steps: S1, preparing a carbon nano tube marked as CNT (at) CC; s2, defects are manufactured on the surface of the CNT (at) CC through the dielectric barrier discharge technology, and a carbon nano tube rich in defects is obtained and marked as p-CNT (at) CC; s3, synthesizing multi-element high-entropy alloy nano-particles through an oil bath method, and recording the multi-element high-entropy alloy nano-particles as HEA NPs; and S4, loading HEA NPs on the p-CNT (at) CC prepared in the step S2, and carrying out Ar / NH3 plasma treatment to prepare the direct methanol fuel cell bifunctional catalyst, which is recorded as P-HEA-p-CNT (at) CC. By improving the charge transfer efficiency, reducing the reaction energy barrier, improving the electrocatalytic activity and selectivity, improving the ORR and MOR reaction performance, and improving the cycle stability and charge-discharge performance.

A method for designing an active battery cell equalization circuit or a combined active battery cell equalization and passive battery cell equalization circuit to be used for equalizing voltage of cell sections in a battery. The method includes setting a number of the cell sections; setting a charge transfer efficiency variable for the equalization circuit; setting a diagonal matrix element for a matrix modeling the equalization circuit; setting a diagonal −1 matrix element for the matrix; setting a discharge capacity value for each cell section; setting a discharge current for the battery; determining equalization circuit currents, battery discharge time, discharge capacity of the cell sections and percentage of rated discharge capacity of the cell sections; setting a median voltage of the cell sections; and determining power loss, energy loss, energy discharge and discharge energy efficiency of the battery.

The invention discloses a four-arm non-fused ring electron acceptor as well as a preparation method and application thereof, and belongs to the technical field of organic photovoltaic acceptor materials. The non-fused ring electron acceptor has a four-arm structure, and compared with a traditional two-arm structure, intermolecular dipole-dipole interaction sites are increased through a multi-side-chain design, and due to the action, a molecular skeleton is more closely stacked, and the interlayer distance is reduced, so that the charge transmission efficiency can be effectively improved. Besides, the four-arm structure effectively enhances the rigidity and planarity of a molecular skeleton through a multi-arm synergistic effect, the distortion problem caused by a C-C single bond in a non-condensed ring structure is inhibited, and the light absorption performance and the charge mobility can be improved by higher crystallinity. Moreover, the four-arm structure can optimize the light absorption range and energy level matching at the same time by regulating and controlling the side chain length and polarity, and the comprehensive performance of the device is further improved.

The invention relates to the technical field of lithium ion batteries, and particularly discloses a lithium iron phosphate material, a preparation method and application, the preparation method comprises the following steps: preparation of a precursor FePO4: dissolving an iron source, a phosphorus source and polyethylene glycol in deionized water, dropwise adding an oxidant in a reaction system, heating at a constant speed and stirring at a constant speed to obtain a precipitate, and drying the precipitate to obtain the precursor FePO4; washing, drying and calcining the precipitate to obtain a precursor FePO4; the preparation of the LiFePO4 material comprises the following steps: mixing the precursor FePO4 with excessive lithium source and carbon source, carrying out ball milling, drying, carrying out staged heating calcination in inert gas, and cooling to obtain the LiFePO4 material. Coprecipitation and a high-temperature carbonization process are combined, polyethylene glycol is introduced for anti-agglomeration modification in the process of preparing a precursor FePO4, overgrowth and hard agglomeration of precursor particles are effectively inhibited by increasing a steric hindrance effect, and meanwhile, regular crystallization is guided to form a microstructure beneficial to lithium ion diffusion; particle morphology and a uniform carbon pattern layer are accurately controlled, and charge transfer efficiency and lithium ion diffusion are improved.

The invention discloses a difunctional negative electrode electrolyte of an all-iron flow battery, a preparation method of the difunctional negative electrode electrolyte and application of the difunctional negative electrode electrolyte in the all-iron flow battery. The negative electrode electrolyte of the difunctional total iron flow battery is prepared by mixing an active substance containing Fe < 3 + > or Fe < 2 + > ions, a supporting electrolyte, a sulfur-nitrogen derivative additive and deionized water. According to the invention, the sulfur-nitrogen derivative is innovatively adopted as an additive in the negative electrode electrolyte, and the sulfur-nitrogen derivative and Fe < 3 + > / Fe < 2 + > form a stable complex, so that the deposition / dissolution behavior of iron ions can be effectively regulated and controlled, dendritic crystal growth can be inhibited, and hydrogen evolution side reaction can be reduced. Under the double effects, the charge transfer efficiency and the cycle stability of the battery are remarkably improved, and finally, the optimization of the overall performance is realized.

The invention discloses a nickel alloy coated copper skeleton catalytic electrode and a preparation method thereof. The method comprises the following steps: sequentially carrying out solution atomic layer deposition nucleation and autocatalytic amplification deposition treatment on a three-dimensional porous foamy copper substrate to obtain a deposition sample coated with a non-noble metal coating; carrying out annealing thermal diffusion treatment on the deposition sample to obtain an annealed sample; in the annealing process, copper atoms in the three-dimensional porous foamy copper substrate are diffused to the non-noble metal plating layer, so that the non-noble metal plating layer is converted into a solid solution transition layer, and the concentration of the copper atoms in the solid solution transition layer is gradually reduced from inside to outside; and sequentially carrying out chemical dealloying and electrochemical selective dealloying treatment on the annealed sample, and dissolving a copper enrichment site in the solid solution transition layer to form a through nanopore channel, so as to obtain the nickel alloy coated copper skeleton catalytic electrode. The structure obtained through the method is good in stability, high-density grain boundaries and oxygen vacancies can be exposed on the surface of the material, the charge transfer efficiency and the active site density are remarkably improved, and the catalytic performance is improved.

This application provides a CdIn2S4 / PMOF heterojunction photocatalyst, its preparation method, and its application, belonging to the field of photocatalysts. The method involves dissolving a cadmium source, an indium source, and a surfactant in an organic solvent and stirring until homogeneous to obtain a precursor solution. PMOF is then added to the precursor solution and dispersed uniformly. A sulfur source is then added, followed by a solvothermal reaction to obtain the CdIn2S4 / PMOF heterojunction photocatalyst. This application utilizes an in-situ solvothermal method to construct a two-dimensional CIS / PMOF heterojunction photocatalyst with coordinate bonds. The CIS and PMOF are connected via Cd-N... x Coordinate bond bonding, using Cd-N x Coordination bonds enhance interfacial interactions and synergistically regulate band structure and charge transfer efficiency, fundamentally solving the core defects of low carrier separation efficiency in single catalysts and weak interfacial interactions in composite catalysts; the synergistic catalytic effect of CIS and PMOF enables the directional conversion of HMF to FFCA, increasing the added value of the product.

The invention discloses a high-speed large-size pixel unit capable of improving charge transfer efficiency and an image sensor. The high-speed large-size pixel unit is a PPD-TG-FD pixel unit based on double PPDs and double transmission gates, and comprises two symmetrically distributed half-gear-shaped PPDs forming an N region, a complementary tooth-shaped P region matched with the half-gear-shaped PPDs, and an FD located at a pixel center position between the two half-gear-shaped PPDs; a first transmission gate TG1 and a second transmission gate TG2 are arranged between the FD and each half-gear-shaped PPD in a spaced mode, the two first transmission gates TG1 and the two second transmission gates TG2 are symmetrically arranged, the second transmission gates TG2 are arranged close to the half-gear-shaped PPD, and the first transmission gates TG1 are arranged close to the FD. Through the special design of the PPD shape, the doping process and the transmission gate, the charge transfer efficiency of large-size pixels is improved, so that the photoelectric charge detection and collection efficiency of ultrahigh frame rate imaging is improved.

The application discloses a flow electrode capacitive deionization device and a high-salt mine water treatment system, and belongs to the technical field of high-salt mine water treatment, and aims to solve at least one problem that flow resistance of a flow electrode in the prior art is relatively large, and the flow resistance is prone to causing at least one of the following problems: the anode side flow channel of the anode side current collecting plate and the cathode side flow channel of the cathode side current collecting plate are blocked, and the distance between the anode side current collecting plate and the cathode side current collecting plate is too large to affect charge transfer efficiency. In the application, a treatment liquid inlet pipe and a treatment liquid outlet pipe are arranged on the end surface of a treatment liquid cavity plate and are in communication with the inner cavity of the treatment liquid cavity plate; an anode side flow electrode inlet pipe and an anode side flow electrode outlet pipe are arranged on the side edge surface of the anode side current collecting plate and are in communication with the anode side flow channel in the anode side current collecting plate; and a cathode side flow electrode inlet pipe and a cathode side flow electrode outlet pipe are arranged on the side edge surface of the cathode side current collecting plate and are in communication with the cathode side flow channel in the cathode side current collecting plate. The application can be used for treating high-salt mine water.