9results about How to "Enable mass manufacturing" patented technology

This invention discloses a high-coercivity hard magnetic oxide semiconductor thin film with perpendicular magnetic anisotropy and its preparation method. The invention employs a multi-target alternating gradient film preparation process, using NiFeO4 and NiCo2O4 targets for alternating sputtering to prepare NiCo2-xFexO4-NiCo2O4 gradient thin films. Experimental results show that the obtained films exhibit a coercivity as high as 1T and good conductivity, with an anomalous Hall resistivity reaching 52.5 μΩ·cm. This preparation method has the advantages of simplicity and low cost, providing new possibilities for the development of magnetic storage devices. This method has significant application potential for realizing high-density, high-speed, and low-power magnetic storage devices, contributing to the development and application of magnetic storage technology.

The present application belongs to the technical field of polyurethane / polyurea, and discloses a stress change material and a preparation method thereof. The stress change material comprises hydrophobic segments and hydrophilic segments. The stress change material can change in size in two ways under water stimulation: one is to absorb a large amount of water to induce rearrangement of the hydrophilic segments, so as to realize volume expansion; the other is to absorb a small amount of water as a plasticizer to promote the movement of the segments, so as to realize shape recovery. Meanwhile, due to the introduction of the hydrophobic segments, the polyurethane / polyurea can still maintain sufficient mechanical strength in a water environment, thereby widening the application range of the material.

This invention provides a method for preparing a microtube monolithic oxygen carrier, comprising the following steps: First, a metal oxide is uniformly mixed with a binder, solvent, and dispersant to obtain a slurry; second, the slurry and a first curing agent are simultaneously added to a porous mold and extruded to obtain a first product; the first product is placed in a second curing agent to complete a phase transformation process, and then dried and shaped to obtain a second product; finally, the second product undergoes preliminary calcination and high-temperature calcination to obtain the microtube monolithic oxygen carrier. The monolithic oxygen carrier prepared by this invention has abundant axial and radial hierarchical pore structures, enabling simultaneous achievement of low bed pressure drop and low heat and mass transfer resistance. The oxygen carrier exhibits high reactivity, strong resistance to sintering and carbon deposition, and can be used in processes such as chemical looping combustion, reforming, or hydrogen production of gaseous fuels in fixed-bed reactors. The oxygen carrier structure is adjustable, has wide applicability to raw materials, and a simple preparation process, allowing for large-scale preparation and possessing broad prospects for promotion and application.

The invention discloses a preparation method and application of a PBO nanofiber solution and PBO nanopaper, during preparation of the PBO nanofiber solution, firstly, PBO chopped fibers are added into sulfonic acid functionalized ionic liquid to form a mixed solution, then the mixed solution is poured into a homogenizer to be dispersed to obtain a PBO micron / nanofiber mixed solution, then negative pressure suction filtration is performed, and the PBO nanofiber solution is obtained. The PBO nanofiber solution with the asymmetric charge interface is obtained. When the PBO nano paper is prepared, a PBO nano fiber solution is taken, deionized water is added, the PBO nano fiber solution and the deionized water are mixed according to the proportion of 1 g: 150 ml, then the mixture is stirred to be uniform in a magnetic stirring mode, negative pressure suction filtration is adopted, then deionized water is added for washing, a wet paper web is obtained, the wet paper web is sequentially subjected to drying and hot pressing, and the high-temperature-resistant and insulated PBO nano paper is obtained. The problems of PBO molecular weight reduction, environmental pollution and the like caused by a mixed strong acid system can be effectively avoided.

This invention provides a pH / ROS dual-responsive nanomedicine carrier, the structure of which is cyclodextrin modified with cinnamaldehyde and 4-hydroxyphenylboronic acid pinacol ester. Lecithin, phospholipid-polyethylene glycol (DSPE-PEG), and phospholipid-polyethylene glycol-RGD peptide are used as the shell of the nanomedicine, and the core consists of glucocorticoids and the prepared pH / ROS dual-responsive drug carrier to form a nanoformulation. This invention designs a pH / ROS dual-responsive drug carrier based on the microenvironment of the disease site. Compared with single pH-responsive or single ROS-responsive drug carriers, this carrier has better microenvironment responsiveness and can more effectively degrade and release therapeutic molecules according to the microenvironment of the lesion site.

The application discloses a preparation method of a high specific capacitance supercapacitor electrode based on carbon materials, which comprises the following steps: mixing carbon materials with sodium alginate or a carboxymethyl cellulose aqueous solution to obtain a slurry; coating the slurry on a substrate to form a slurry film, immersing the slurry film together with the substrate in a crosslinking agent to perform crosslinking, and then separating the hydrogel film from the substrate; cleaning the hydrogel film with distilled water to remove residual crosslinking agent, and then immersing the hydrogel film in an electrolyte to perform electrochemical treatment, so as to obtain a high specific capacitance supercapacitor electrode. The application can widen the electrochemical stable potential window of the carbon materials and the electrolyte by 30% and improve the specific capacitance of the carbon materials by about 100% under the condition that the carbon materials and the electrolyte are used in existing commercial applications, and the preparation method is simple, compatible with existing commercial production lines, and can realize large-scale preparation.

The invention discloses an MOF (Metal Organic Framework) capable of being used for preparing ammonia by electroreduction of a nitrate-containing solution and a preparation method, and belongs to the technical field of nano materials. Comprising the following steps: firstly, treating carbon cloth with a saturated potassium permanganate solution; then adding an organic ligand 2, 3, 6, 7, 10, 11-hexahydroxy triphenylene and cobalt acetate monohydrate into deionized water and N-methyl pyrrolidone, and carrying out ultrasonic treatment to fully disperse the solid medicine in the solution; obliquely putting the pretreated carbon cloth into the mixed solution, transferring into a reaction kettle, carrying out hydrothermal treatment, repeatedly cleaning the surface of the carbon cloth by using deionized water and absolute ethyl alcohol, and drying to obtain the MOF capable of being used for preparing ammonia by electroreduction of a nitrate-containing solution. According to the method, bismuth chloride can also be added into the organic ligand 2, 3, 6, 7, 10, 11-hexahydroxy triphenylene and cobalt acetate monohydrate to prepare Bi-doped MOF. The invention aims to provide the method for preparing the MOF which can be used for preparing the ammonia by electroreduction of the nitrate-containing solution, can be massively produced, has uniform morphology and can be used for preparing the ammonia by electroreduction of the nitrate-containing solution under a hydrothermal condition.

The application belongs to the technical field of sodium ion battery cathode materials, and relates to an element non-uniform distribution P2 type layered oxide cathode material, a sodium ion battery, and a preparation method and application. Metal salt solution and doped element salt solution are simultaneously introduced into a reaction kettle in a series connection mode, and react with a mixed alkali solution to obtain an element non-uniform distribution precursor. Then, the element non-uniform distribution precursor is mixed with a sodium source and sintered to obtain the P2 type layered oxide cathode material. The metal salt includes at least one of MnSO4, NiSO4, CuSO4, CoSO4 and FeSO4. The doped element salt solution includes at least one of MgSO4 solution, ZnSO4 solution and Al2(SO4)3 solution. The application realizes the non-uniform distribution of high surface concentration and low body concentration of the doped element through series connection feeding, significantly improves the cycle stability under the premise of reducing the initial capacity loss. The method is simple in process, strong in controllability, and easy to mass produce.

The invention relates to the technical field of battery materials, in particular to a zinc electrode treatment method and a zinc symmetric button battery preparation method. 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid is uniformly smeared on the surface of the zinc foil and is subjected to heat treatment, so that a fluorine functionalized three-dimensional bracket protection layer constructed on the surface of the zinc foil is realized, zinc ions can be guided to be uniformly deposited, and the problems that a traditional zinc metal protection layer is tedious in preparation process, high in cost and hindered in ion diffusion are solved.