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47results about How to "Suitable for commercial applications" patented technology
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Method and application for synthesizing cheap nickel-iron nanosheet array high-efficiency electrocatalyst at normal temperature and normal pressure
The invention discloses a method and application for synthesizing a cheap nickel-iron nanosheet array high-efficiency electrocatalyst at normal temperature and normal pressure, and relates to a methodand application for synthesizing the high-efficiency electrocatalyst. The method and application aim to solve the problems that an existing commercial oxygen evolution reaction catalyst is noble metal, high in price and poor in stability, the large-scale application is limited, the synthesis condition of an existing nickel-iron catalyst is rigorous, the process is complex, the cost is high, and the large-scale production and application of the nickel-iron catalyst are seriously restricted. The method comprises the following steps that 1, pretreatment is carried out on foamed nickel; 2, an iron solution is prepared; and 3, soaking is carried out so as to obtain the nickel-iron nanosheet array high-efficiency electrocatalyst. According to the method, the large-scale production can be achieved, the method can be used for producing the nickel-iron nanosheet array high-efficiency electrocatalysts with different specifications, is suitable for commercial application, and is more suitable for the requirements of industrial production. According to the method, the nickel-iron nanosheet array high-efficiency electrocatalyst can be obtained.
Owner:NORTHWEST A & F UNIV
Sodium ion battery negative electrode material and preparation method thereof
InactiveCN109742399ALarge poresImprove sodium storage performanceCell electrodesSodium-ion batteryLarge capacity
The invention discloses a sodium ion battery negative electrode material and a preparation method thereof, and the preparation method comprises a preparation method (1) or a preparation method (2). The preparation method (1) is: firstly activating the soft carbon and then coating the hard carbon; the preparation method (2) is: firstly activating the hard carbon and then coating the soft carbon. The preparation method firstly introduces a large number of developed pore structures by activating the soft carbon / hard carbon to provide more storage space for sodium ions, which is favorable for theincrease of material capacity; then the coating of a hard carbon / soft carbon precursor can effectively cover the defects and edge faces caused by the activation, reduce the irreversible capacity losscaused by the insertion and removal of sodium ions, and effectively improve the first-week coulomb efficiency. The sodium ion battery negative electrode material of the invention has the advantages oflow cost, high capacity and high first-week coulomb efficiency, and high cost performance; in addition, the preparation method of the invention is simple and suitable for commercial application.
Owner:NINGBO RONBAY LITHIUM BATTERY MATERIAL CO LTD
Preparation method for calcium carbonate whiskers extracted from limestone
InactiveCN106048709AHigh purityComplete crystal formPolycrystalline material growthFrom normal temperature solutionsCalcium bicarbonateDecomposition
The invention relates to specifically relates to a preparation method for calcium carbonate whiskers extracted from limestone, belonging to the field of inorganic micropowder. According to the preparation method, natural limestone is subjected to fragmentation and crushing and then mixed with a proper amount of water and a surface modifier, and the calcium carbonate whiskers with structured morphology can be directly obtained through the processes of generation, dissolving, decomposition and crystallization of calcium bicarbonate. The preparation method comprises the following key technical steps: (1) introducing high-pressure CO2 gas into limestone dust suspension with the proper amount of the surface modifier so as to convert calcium carbonate into water-soluble calcium bicarbonate; and (2) controlling decomposition of water-soluble calcium bicarbonate under proper reaction conditions so as to allow the calcium carbonate whiskers mainly of aragonite structures to be precipitated. The preparation method has low requirement on raw materials and completes both purification and crystallization in the process of preparation; and the calcium carbonate whiskers have hydrophobic surfaces, show good dispersibility in matrixes like organic solvents and high-molecular resin and are applicable to the industrialization fields of paint, plastics, polymer composites, etc.
Owner:SHENYANG JIANZHU UNIVERSITY
Periodic metal contact gain-coupled distributed feedback semiconductor laser device
InactiveCN105811242AIncrease output powerGood side mode suppression ratioOptical wave guidanceCurrent limitingHigher Power
The invention provides a periodic metal contact gain-coupled distributed feedback semiconductor laser device, belongs to the technical field of semiconductor laser chips, and aims at solving the problems that the distributed feedback semiconductor laser device in the prior art is difficult to prepare and high in cost. Periodic metal contacts are manufactured on a semiconductor laser chip; lateral current restricted areas can be manufactured between the periodic metal contacts through means of etching, oxidization, current carrier injection and the like; and high-reflective films or antireflective films can also be manufactured on the end surfaces of the chip. According to the periodic metal contact gain-coupled distributed feedback semiconductor laser device, semiconductor laser single-tube or linear array output with high power and narrow linewidth can be achieved; and the periodic metal contact gain-coupled distributed feedback semiconductor laser can also be applied to other semiconductor laser devices as a seed source, or can be applied to generation of a dual-wavelength or frequency comb-excited semiconductor laser light, or is used for carrying out nonlinear optical effect, and can also be used for obtaining a semiconductor laser pump light source with a stable wavelength.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Diamond-shaped dodecahedron hollow potassium tannate nanoparticles and preparation method thereof
ActiveCN107098940AUniform particle sizeGood dispersionEsterified saccharide compoundsSugar derivativesDodecahedronUltraviolet
The invention relates to diamond-shaped dodecahedron hollow potassium tannate nanoparticles and a preparation method thereof which are characterized in that obtained potassium tannate nanoparticles have diamond-shaped dodecahedron hollow appearance structures and are directly prepared in an aqueous solution based on an acid-base neutralization principle and a dissolution mechanism in a ZIF-8 acid environment under the condition of a room temperature. The preparation method comprises the following preparation steps: (1) firstly preparing a ZIF-8 nanoparticle colloidal solution in an ethylene glycol solution by taking zinc nitrate and 2-methylimidazole as raw materials, centrifugally separating, performing ultrasonic cleaning with alcohol and then dispersing in the aqueous solution; (2) adding potassium hydroxide and a tannic acid aqueous solution into the ZIF-8 aqueous solution under the condition of rapid stirring, uniformly mixing and reacting for 10-60 minutes under stirring at a room temperature; (3) centrifugally separating the prepared colloidal solution obtained in the step (2) at a high speed and performing ultrasonic cleaning to obtain the diamond-shaped dodecahedron hollow potassium tannate nanoparticles. The hollow potassium tannate nanoparticles obtained by the preparation method provided by the invention have important application values in drug transport, UV protection, bacterium resistance, pollutant adsorption and the like.
Owner:UNIV OF JINAN
Oxygen reduction catalyst, and preparation method and application thereof
The invention discloses an oxygen reduction catalyst. The oxygen reduction catalyst comprises a carbon material and two or more doping elements doped in the carbon material, wherein the doping elements are non-metallic elements excluding carbon and oxygen elements in the group IIIA and the group VA to the group VIIA. The invention further discloses a preparation method and an application of the above oxygen reduction catalyst. The oxygen reduction catalyst disclosed by the invention has a large specific surface area, good electrical conductivity, high stability, excellent oxygen reduction activity and simple preparation method, and thus is suitable for commercial application.
Owner:KELAS ENVIRONMENTAL PROTECTION TECH CO LTD +1
Bimetal selenide carbon microsphere composite material as well as preparation method and application thereof
ActiveCN113130865AImproves ion transmissionHigh activityCell electrodesSecondary cellsElectrically conductiveSelenide
The invention provides a bimetallic selenide carbon microsphere composite material as well as a preparation method and application thereof. In the bimetallic selenide carbon microsphere composite material, two kinds of metal selenide are cross-linked with each other through the carbon matrix and are uniformly combined to form microspheres; in the two kinds of metal selenide, the metal valence state of one is relatively high, and the metal valence state of the other is relatively low. By introducing the high-valence metal, the electron and ion transmission effect of the low-valence metal can be improved, and the synergistic effect of the double metals is generated, so that the activity and the sodium storage performance of the material are improved. The carbon matrix not only provides a conductive network, but also limits the volume expansion of the material.
Owner:CENT SOUTH UNIV
Composite anode material of lithium ion battery and preparation method thereof
ActiveCN108695505AAlleviate volume expansionImprove conductivityMaterial nanotechnologyCell electrodesConductive polymerElectrical battery
The invention discloses a composite anode material of a lithium ion battery. According to the composite anode material, nano silicon co-coated with a conductive carbon network and a silicon-manganesealloy is served as an active substance, a manganese source is dispersed in a medium and is uniformly dispersed on the surface of silicon oxide by stirring, the surfaces of the particles are coated with a reticulate conductive polymer in situ, and an obtained precursor is subjected to high-temperature heat treatment so as to prepare a self-supporting material co-coated with the conductive carbon network and the silicon-manganese alloy. The invention further provides a preparation method for the nano-silicon self-supporting anode material co-coated with the carbon network and the silicon-manganese alloy. The preparation method has the advantage that the cycling stability and the rate capability of the anode material can be effectively improved.
Owner:CENT SOUTH UNIV
Polyurethane microporous elastomer and preparation method thereof
The invention relates to a polyurethane microporous elastomer, polyether polyol is adopted as a reaction raw material and is matched with other components, so that the obtained polyurethane microporous elastomer has excellent tensile strength, tearing strength, elongation at break, wear resistance and folding resistance under the condition of relatively low density. The invention also provides a preparation method of the elastomer.
Owner:WANHUA CHEM BEIJING +1
Method for improving discharge resistance of epoxy insulator in gas insulation system
ActiveCN106782941AChange physical and chemical characteristicsSimple processInsulatorsEpoxy insulatorsNitrogen gas
The invention relates to a method for improving the discharge resistance of an epoxy insulator in a gas insulation system. According to the method, fluoridation is carried out on the epoxy insulator by using a gas mixture of fluorine gas and nitrogen gas or a gas mixture of fluorine gas and inert gas under the conditions of appropriate temperature and pressure in a closed reaction chamber, a fluoridation layer containing C-F bonds is formed on the surface of the epoxy insulator, so that the method is used for improving the discharge resistance of the epoxy insulator. Compared with the prior art, the method disclosed by the invention is simple in processing steps, good in controllability and low in economic cost, the epoxy insulators with arbitrary shapes and dimensions can be uniformly modified in batches, and the method is specially applicable for commercial application.
Owner:TONGJI UNIV
Preparation method of carbon-doped magnesium diboride superconducting tape
InactiveCN102496680AGood Die ConnectivityIncrease the critical current densityMetal boridesSuperconductor device manufacture/treatmentMagnesium diborideAlloy
The invention relates to a preparation method of a carbon-doped magnesium diboride (MgB2) superconducting tape. The technical characteristic of the invention is characterized in that the method comprises the following steps that: a, a buffer layer film is deposed on a metal baseband; b, a malic acid-doped Mg(BH4)2 colloid is manufactured as well as the colloid is coated on the buffer layer film; c, the metal baseband that has been processed in the step b is placed under an protection atmosphere and is heated to a temperature of 300 to 500 DEG C, so that the malic acid- Mg(BH4)2 is deposed into a Mg(B1-XCX)2 superconductive alloy compound, wherein the X is equal to a value that is obtained by subtracting 0.l0 from 0.01; and d, metal having good electric conduction and heat conduction performances is covered on the surface of the Mg(B1-XCX)2 superconductive layer obtained by the step c so as to obtain a protection layer; that is, a practical carbon-doped MgB2 superconducting tape is obtained. Compared with a current method, the method provided in the invention enables the prepared MgB2 superconducting tape to have high critical current density, good heat stability and good flexibility; and moreover, manufacturing cost is low; and the method is suitable for industrialized production.
Owner:西部超导材料科技股份有限公司
Annual-ring-shaped graphene organic silicon resin biomimetic composite material, and preparation method and application thereof
ActiveCN111793363AHigh thermal conductivityImprove conductivityHeat-exchange elementsChemical industryResin matrix
The invention relates to an annual-ring-shaped graphene organic silicon resin biomimetic composite material, and a preparation method and application thereof. The annual-ring-shaped graphene organic silicon resin biomimetic composite material comprises, by mass, 55-73% of an organic silicon resin matrix, 20-40% of an annual-ring-shaped graphene biomimetic skeleton array and 5-7% of a curing agent.The annual-ring-shaped graphene bionic skeleton array is prepared by using a 3D printing technology, and the skeleton is of a concentric-circle hierarchical structure and can effectively form a vertical through conduction network, so that the composite material shows excellent heat conduction and electric conduction performance under the condition of relatively low graphene content. The highest thermal conductivity of the composite material is greater than 20 W / mK, and the highest electric conductivity is greater than 100 S / m. The bionic composite material disclosed by the invention is non-toxic, environment-friendly, low in cost, convenient to prepare and easy for expanded production, is a thermal interface material with excellent performance, and can be applied to the fields of 5G communication equipment, electronic packaging, aerospace, energy and chemical industry and the like.
Owner:JIAXING UNIV
Carbon-sulfur double doped electrode material and preparation method thereof
InactiveCN110047658AImprove stabilityHigh rate characteristicsHybrid capacitor electrodesHybrid/EDL manufactureNickel saltHigh energy
The invention provides a carbon-sulfur double doped nickel-cobalt double hydroxide electrode material, a preparation method and a supercapacitor prepared therefrom. The electrode material comprises carbon-sulfur double doped nickel-cobalt double hydroxide electrode material. According to the preparation method, nickel salt and cobalt salt are deposited on a conductive substrate by a constant voltage cathode electrochemical deposition method. The electrode material is directly connected with the conductive substrate without adding adhesive, so the resistance is effectively reduced, and the highperformance double doped nickel-cobalt double hydroxide electrode material is obtained, which overcomes the disadvantage of poor rate performance of the traditional double hydroxide electrode material. The preparation method has the advantages of simple preparation process, low cost and short period, and is suitable for commercial application. The supercapacitor prepared with the electrode material as the positive electrode and the activated carbon as the negative electrode has good charge-discharge performance and high power density and energy density and conforms to the development trend ofsupercapacitors with both high energy density and high power density.
Owner:SICHUAN UNIV
Solar cell backboard and manufacturing method thereof
ActiveCN107978651AExtended service lifeHigh peel strengthFinal product manufacturePhotovoltaic energy generationSolar cellMechanical property
The present invention provides a solar cell backboard. The solar cell backboard comprises in order from bottom to top: a ground layer inorganic matter weather-proof layer, a first polymer weather-proof layer, a second polymer weather-proof layer, a first structure enhancement layer, a second structure enhancement layer, a third structure enhancement layer, a third polymer weather-proof layer, a fourth polymer weather-proof layer and a top layer inorganic matter weather-proof layer, wherein the thickness of the first polymer weather-proof layer is larger than the thickness of the second polymerweather-proof layer, the thickness of the fourth polymer weather-proof layer is larger than the thickness of the third polymer weather-proof layer, the thicknesses of the first structure enhancementlayer, the second structure enhancement layer and the third structure enhancement layer are the same. The solar cell backboard is low in cost, good in weatherability, high in endurance and good in mechanical properties.
Owner:YANGZHOU BENSE LIGHTING TECH CO LTD
Epitaxial growth method for improving crystal quality of aluminum nitride material, and aluminum nitride material
PendingCN113279054AReduce dislocation densityImprove crystal qualityPolycrystalline material growthFrom chemically reactive gasesDislocationCrystal
The invention discloses an epitaxial growth method for improving the crystal quality of an aluminum nitride material, and the aluminum nitride material. The epitaxial growth method for improving the crystal quality of the aluminum nitride material comprises the following steps: growing and forming an aluminum nitride bottom layer on a substrate, growing an aluminum nitride hole forming layer on the aluminum nitride bottom layer, and simultaneously forming a plurality of holes in the aluminum nitride hole forming layer; and growing an aluminum nitride merging layer on the aluminum nitride hole forming layer, merging materials for forming the aluminum nitride merging layer at the top of each hole to form a cavity in situ, and wrapping the cavity in the aluminum nitride merging layer to make the epitaxial layer formed on the cavity have a flat and crack-free surface. The epitaxial growth method for improving the quality of the AlN material has the advantages of remarkable dislocation density reduction effect, capability of simultaneously inhibiting cracks, simple process, wide adaptability and the like, so that the thicker crack-free and high-quality AlN material grows, and the epitaxial growth method is completely suitable for commercial production.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Medium temperature sintered multilayer ceramic capacitor dielectric material
The invention discloses a medium temperature sintered multilayer ceramic capacitor dielectric material using BaTiO3 powder as a basic material, and on the basis of the BaTiO3 powder, the medium temperature sintered multilayer ceramic capacitor dielectric material also comprises 0.3-0.6% by mass of Na0.5Bi0.5TiO3; 0.6-1.5% by mass of (NiO) 1-x (NbO2.5) x (x =0.6-0.8); 1.0-3.0% by mass of CaZrO3 and 4-7% by mass of a glass fluxing agent; the Na0.5Bi0.5TiO3 is synthesized from Na2CO3, Bi2O3 and TiO2 in the molar ratio of 1:1:4; by addition of the sodium bismuth titanate and the glass fluxing agent, mass transfer in the sintering process can be effectively improved, the sintering temperature can be reduced, medium temperature sintering at the temperature lower 1150 DEG C can be realized, the medium temperature sintered multilayer ceramic capacitor dielectric material has excellent dielectric properties; in the temperature range of-55 to 150 DEG C, the rate of change of capacitance is within + / -12%, and the medium temperature sintered multilayer ceramic capacitor dielectric material has a high room temperature dielectric constant (-2700).
Owner:TIANJIN UNIV
Block thermoelectric material
InactiveCN103151451ASuitable for commercial applicationsThermoelectric device junction materialsWorking temperatureElectric properties
The invention relates to block thermoelectric material. The chemical formula of the thermoelectric material is (Cu2-xHAx) (Sel-y (L / 2)My), wherein x<=0.15, 0<=y<=0.1, H is the valence of the element A, L is the valence of the element M, the element A is any one of Al, Mn, Co, Ni, Ga, Mo, W, Zr and Nb, and the element M is any one of N and Si. The performance factor ZT of the thermoelectric material is 2-3 at the temperature of 580-680 DEG C. By certain fabrication processing of the thermoelectric material, the block material can be obtained, wherein the performance factor ZT of the block material is 2-3 at the temperature of 580-680 DEG C, and the block material is suitable for business application. As everyone knows, improvement of the performance factor ZT of the thermoelectric material by 0.4 is great performance, moreover the performance factor ZT is improved by 1.4 to the greatest extent, and the working temperature range is as wide as 100 DEG C. The thermoelectric properties of the thermoelectric material already reaches the requirements of the business application, the performance factor ZT is 2-3 at the temperature of 580-680 DEG C, and the range of electricity generating temperature is wide.
Owner:何琴玉
Molecular marker kit for formulating individual weight reduction scheme
InactiveCN102676639AWeight loss healthWeight loss scienceMicrobiological testing/measurementLow Carbohydrate DietsAnimal science
The invention relates to a molecular marker kit for formulating an individual weight reduction scheme. The kit comprises nucleotide shown in SEQ ID NO:1-10 and can comprise restriction endonucleases Hha I, Msp I and Bbv I. The kit is used for analyzing SNPs (single nucleotide polymorphisms) genotypes of a subject and issuing a comprehensive genetic predisposition analysis report, and nutritionists are invited to recommend a diet style (low fat diet, low carbohydrate diet and balanced diet) suitable to weight reduction to the subject, analyze intake calorie of the subject required every day according to the practical situation of the subject and individually arrange the proportion of three nutrient elements (fat, protein and carbohydrate) in three meals a day, so that healthy, scientific and effective weight reduction is achieved.
Owner:CHONGQING KANONG TECH
Preparation method of amphoteric ion exchange membrane
ActiveCN102181069BKeep hydrophilicEnsure normal conductionAmphoteric ion-exchangersCell component detailsProtonationBond energy
The invention discloses a preparation method of an amphoteric ion exchange membrane and relates to a preparation method of an amphoteric ion exchange membrane for an all-vanadium redox flow battery. According to the scheme, the preparation method comprises the following steps of: performing irradiation grafting on polymer powder poly(vinylidene fluoride); transforming the irradiation-grafted polymer powder into a membrane material; and sulfonating the membrane material, hydrolyzing, introducing a sulfonate radical group with a cationic exchange function, putting the membrane material into a hydrochloric acid aqueous solution for undergoing a protonation reaction and introducing basic nitril with an anion exchange function to obtain the amphoteric ion exchange membrane. In the method, commercial poly(vinylidene fluoride) resin with low price is taken as a raw material, so that the membrane making cost can be lowered; a C-F bond has large bond energy, so that the membrane can keep high chemical stability in a strong acid and high oxidizing electrochemical environment; and meanwhile, the problem of non-uniform distribution of grafted chains of the conventional heterogeneous irradiation-grafted membrane in the vertical direction of the membrane is solved.
Owner:PEKING UNIV
Simple perovskite solar cell packaging structure and manufacturing method thereof
PendingCN111628088AImprove stabilityEasy to testFinal product manufactureSolid-state devicesPerovskite solar cellMetal electrodes
The invention provides a simple perovskite solar cell packaging structure and a manufacturing method thereof, and belongs to the technical field of photovoltaic cell manufacturing. The structure comprises a perovskite solar cell. The perovskite solar cell is provided with a first metal electrode and a second metal electrode. The perovskite solar cell is wrapped with a packaging material, an upperbackboard and a lower backboard are clamped outside the packaging material, the first metal electrode is connected with a first metal lead, the second metal electrode is connected with a second metallead, and the first metal lead and the second metal lead respectively extend out of the packaging material and are located outside the upper backboard and the lower backboard. According to the invention, the perovskite solar cell can be effectively packaged, and the stability of the packaged device is obviously improved, and meanwhile, the metal lead in contact with the perovskite solar cell electrode can facilitate the actual test and connection of the device.
Owner:TRINA SOLAR CO LTD
Electron irradiation preparation method of aluminum oxide quantum dots on a film surface
InactiveCN106906451BHigh puritySimple processVacuum evaporation coatingSputtering coatingQuantum dotIrradiation
The invention relates to an electron irradiation preparation method of aluminum oxide quantum dots on the surface of a thin film. The method comprises cleaning of the substrate; preparation of the aluminum oxide amorphous film; electron irradiation of the prepared amorphous film by a commercial electron electrostatic accelerator; and annealing treatment of the irradiated amorphous film. Through the above steps, alumina quantum dots are prepared on the surface of the alumina amorphous film, and the quantum dot distribution density and geometric structure characteristic parameters can be regulated by controlling electron irradiation and annealing treatment parameters. Compared with the prior art, the present invention grows alumina quantum dots in situ on the surface of the alumina film without introducing impurities, and the process is simple; the obtained alumina film is amorphous, so the circularity of the alumina quantum dots prepared by the present invention is Better, uniform in size, and uniform in shape distribution. Moreover, commercial electron electrostatic accelerators are used for electron irradiation, which can realize large-scale large-scale preparation and commercial application.
Owner:SICHUAN UNIV
Preparation method of biologically-fermented washing liquid derived from agallochum leaves
InactiveCN110819465AAvoid pollutionAvoid harmInorganic/elemental detergent compounding agentsOrganic detergent compounding agentsActivated carbonCellulase
The invention relates to a microbial fermentation technology, in particular to a preparation method of a biologically-fermented washing liquid derived from agallochum leaves. The method comprises thefollowing steps: (1) screening of strains with high yield of cellulase and protease; (2) mixed fermentation; (3) rough filtration: filtering and centrifuging fermentation liquor to obtain clarified yellow thick liquid; (4) fine filtration: adding 4-5% of powdered activated carbon into a coarse filtrate, carrying out heating to 50 DEG C, performing sufficient stirring for 2 h, and carrying out filtering to obtain clear liquid; (5) preparation of a detergent. According to the invention, agricultural wastes are fully utilized, and the utilization rate of energy is improved; the resources of agallochum leaves and bagasse are utilized, the waste is turned into the valuable, and the very good detergent is produced, so resource utilization and environmental pollution prevention are both realized;and in addition, the biologically-fermented washing liquid has the advantages of usage of cheap raw materials, environment-friendly process, less emission and the like, and is very suitable for commercial application.
Owner:广西美悦天香实业有限公司
Preparation method of layered graphite flexible current collector
InactiveCN114023570AImprove electrochemical performanceIncrease contact areaHybrid/EDL manufactureHybrid capacitor current collectorsAdhesive beltSupercapacitor
The invention relates to preparation of an electrode current collector, and discloses a preparation method of a layered graphite current collector flexible fluid, aiming at the problems that more oxygen-containing functional groups are introduced to the surface of graphite and more defects are generated on graphite crystals due to the fact that a large amount of oxygen is generated in the treatment process of the conventional graphite roughening treatment method. The method specifically comprises the following steps: sticking an adhesive tape on graphite paper, and stripping the adhesive tape at a certain stripping speed; immersing the graphite paper stripped from the adhesive tape into a solvent, and carrying out ultrasonic treatment; and finally, cleaning the treated graphite paper with deionized water, and airing to obtain the layered graphite current collector. The mechanical stripping method including adhesive tape stripping and ultrasonic treatment does not cause defects of graphite crystals, so that the excellent conductivity of graphite is kept. The graphite current collector prepared by the method has a special layered graphite microstructure, so that the graphite current collector has a highly roughened three-dimensional surface, and the electrochemical performance of the constructed flexible supercapacitor can be obviously improved.
Owner:SHANXI UNIV
Packaging structure of perovskite solar cell, and preparation method of packaging structure
PendingCN111653673AEfficient packagingStop the spreadSolid-state devicesSemiconductor/solid-state device manufacturingMetallic electrodePerovskite solar cell
The invention belongs to the technical field of solar cells, and particularly relates to a perovskite solar cell packaging structure and a preparation method thereof. The perovskite solar cell packaging structure comprises a substrate, wherein a transparent conductive layer, an electron transport layer, a perovskite layer, a hole transport layer and a metal electrode are sequentially arranged on the substrate, and a compact insulating layer is arranged between the perovskite layer and the metal electrode. According to the invention, the perovskite solar cell can be effectively packaged, so that contact with external water and oxygen is avoided; and the deposited insulating layer can effectively prevent the internal metal electrode from diffusing into the perovskite layer, so that the stability of the device is remarkably improved.
Owner:TRINA SOLAR CO LTD
Preparation method of CrN-Cr-CrN composite protective coating on surface of Zr-4 cladding
PendingCN113652635AAchieve depositionHigh bonding strengthVacuum evaporation coatingSputtering coatingOxidation resistantBinding force
The invention discloses a preparation method of a CrN-Cr-CrN composite protective coating on the surface of a Zr-4 cladding, and belongs to the technical field of functional material preparation. The technical problem that the binding force between an existing Zr-4 cladding coating and a substrate and the high-temperature oxidation resistance cannot reach an ideal state is solved. According to the invention, the CrN-Cr-CrN composite protective coating is sequentially prepared on the Zr-4 substrate by utilizing a gradient reaction magnetron sputtering technology, so that higher binding force between the coating and the substrate is achieved, and meanwhile, better high-temperature oxidation resistance is ensured, and the application requirement of the coating cladding is met.
Owner:HARBIN INST OF TECH +1
A kind of preparation method of composite Raman enhanced substrate
ActiveCN105386047BPrevent oxidation and vulcanizationImprove stabilityVacuum evaporation coatingSputtering coatingSputteringComposite substrate
The invention provides a method for manufacturing a composite Raman-enhanced substrate. An Ag non-continuous nano-film with the thickness ranging from 20 nm to 50 nm is prepared on a smooth substrate through magnetron sputtering; a potassium chloroplatinate (K2PtCl4) solution and a sodium citrate (C6H5Na3O7) solution are prepared; a nano-Ag film substrate is put into the solutions to react for 10 min to 30 min at the temperature of 90 DEG C, and the substrate is taken out to be cleaned; hydrogen peroxide is prepared, the substrate is put into the hydrogen peroxide to be subjected to a stirring reaction for 5 min to 10 min, and then the substrate is taken out and cleaned; and a sodium borohydride (NaBH4) solution is prepared, the substrate is put into the sodium borohydride (NaBH4) solution to be subjected to a stirring reaction for 5 min to 10 min, and then the substrate is taken out and cleaned. By the adoption of the method, the good Raman-enhanced effect is achieved; and the manufacturing process is simple, performance is excellent, and stability is good.
Owner:SHANGHAI NAT ENG RES CENT FORNANOTECH
A kind of solar battery backplane and its manufacturing method
ActiveCN107978651BExtended service lifeHigh peel strengthFinal product manufacturePhotovoltaic energy generationThermodynamicsWeather resistance
Owner:YANGZHOU BENSE LIGHTING TECH CO LTD
Method for manufacturing composite Raman-enhanced substrate
ActiveCN105386047AImprove stabilityImproving Raman Enhanced PerformanceVacuum evaporation coatingSputtering coatingCitrate sodiumSodium borohydrate
The invention provides a method for manufacturing a composite Raman-enhanced substrate. An Ag non-continuous nano-film with the thickness ranging from 20 nm to 50 nm is prepared on a smooth substrate through magnetron sputtering; a potassium chloroplatinate (K2PtCl4) solution and a sodium citrate (C6H5Na3O7) solution are prepared; a nano-Ag film substrate is put into the solutions to react for 10 min to 30 min at the temperature of 90 DEG C, and the substrate is taken out to be cleaned; hydrogen peroxide is prepared, the substrate is put into the hydrogen peroxide to be subjected to a stirring reaction for 5 min to 10 min, and then the substrate is taken out and cleaned; and a sodium borohydride (NaBH4) solution is prepared, the substrate is put into the sodium borohydride (NaBH4) solution to be subjected to a stirring reaction for 5 min to 10 min, and then the substrate is taken out and cleaned. By the adoption of the method, the good Raman-enhanced effect is achieved; and the manufacturing process is simple, performance is excellent, and stability is good.
Owner:SHANGHAI NAT ENG RES CENT FORNANOTECH
A kind of polyurethane microcellular elastomer and preparation method thereof
The invention provides a polyurethane microcellular elastomer. The elastomer adopts polyether polyol as a reaction raw material and is matched with other components. The obtained polyurethane microcellular elastomer has a lower density and simultaneously It has excellent tensile strength, tear strength, elongation at break, wear resistance and folding resistance. The present invention also provides a preparation method of the elastomer.
Owner:WANHUA CHEM BEIJING +1
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