49results about How to "Expected to be mass-produced" patented technology

The invention discloses a preparation method of an oxidized Mxene/S compound applied to a lithium-sulphur battery cathode, relates to a preparation method of an S compound applied to the lithium-sulphur battery cathode, and aims to solve the technical problem of complex process of an existing Mxene/S compound preparation method. The preparation method disclosed by the invention comprises the following steps: 1, preparing Mxene powder; 2, oxidizing; 3, performing a water bath method. According to the preparation method, oxidized Mxene with high conductivity is taken as an S carrier, the preparation process is simple and safe, the production cost is low, large scale production is hopefully realized, and the oxidized Mxene/S compound as a lithium-sulphur battery cathode material has very highspecific capacity and cycling stability. The preparation method is applied to preparation of the lithium-sulphur battery cathode material.

The invention particularly relates to a titanium-containing organic framework material MIL-125 (Ti) moisture-sensitive sensor and a preparation method thereof. The preparation method comprises the following steps of: firstly, utilizing a silk screen print method to prepare an Au metal inter-digital electrode on a ceramic substrate; utilizing a hydrothermal method to prepare an MIL-125 (Ti) sensitive material; and utilizing a coating method to coat the sensitive material on the metal inter-digital electrode to prepare a moisture-sensitive element. The adopted testing humidity range is 33-100% of RH (Relative Humidity), the adopted testing voltage is 1 V and the frequency is 100 Hz. The MIL-125 (Ti) moisture-sensitive sensor prepared by the preparation method has the advantages of simple preparation process, small device volume, suitableness for large-batch production, higher sensitivity to humidity, smaller humidity hysteresis and faster responding time; and the moisture-sensitive sensor has the huge application value on the aspect of moisture-sensitive detection.

The invention relates to a method for preparing monodisperse silver-coated microspheres, and belongs to the fields of silver-coated microspheres, electronic connecting materials and the like. The method comprises the following steps of: preparing monodisperse melamine formaldehyde resin (MF) microspheres by using a dispersion polymerization method; roughing, sensitizing, activating and chemically plating a nickel metal and a silver metal by taking the microspheres as mother spheres so as to obtain the monodisperse silver-coated MF microspheres. The MF mother spheres have the advantages of simple and reliable preparation process, high efficiency, controllable grain size, good monodispersibility and the like. Because the MF microspheres contain active groups such as amino acid, hydroxyl and the like, the coat is complete and high in binding force, the grain size of the silver-coated microspheres can be controlled in a range of 1.0-3.9mu m, the dispersion coefficient epsilon is 0.045-0.067, the monodispersibility is high, the decomposition temperature is about 300DEG C, and the thermal stability is high; moreover, the preparation method is simple and high-efficiency, has the advantages of industrial production, and has good application prospect in the fields of electronic connecting materials such as anisotropic conductive adhesives and the like.

Belonging to the field of super-amphiphobic materials, the invention discloses a water dispersible super-amphiphobic microsphere, a preparation method and application thereof. According to the invention, an epoxy resin layer A is introduced to a substrate microsphere surface, a lot of epoxy groups exist on the surface of the epoxy resin A, during adhering to the substrate microsphere surface, parts of epoxy groups undergo cross-linking to make a polymer anchored on the microsphere surface, then parts of the epoxy groups undergo ring-opening reaction to graft a hydrophilic compound B and a fluorine-containing compound C, thus obtaining the water dispersible super-amphiphobic microsphere. The super-hydrophobic microsphere is prepared into a paint to coat the substrate surface, epoxy groups that do not undergo reaction in the microsphere are subjected to cross-linking with the substrate under the action of a catalyst, thus obtaining a super-amphiphobic surface. The preparation method is simple and feasible. The prepared water dispersible super-amphiphobic microsphere has good water dispersibility, can avoid use of organic solvents harmful to the environment, can be combined with a variety of substrates firmly, and has universality. The obtained super-amphiphobic surface has very good scrub resistance and corrosion resistance.

The invention discloses an MXene two-dimensional material and a Cu/MXene catalyst, and preparation methods and application thereof. The preparation method of the MXene two-dimensional material comprises the following steps: subjecting a uniformly-mixed reaction system containing lithium fluoride, acid and an Mxene precursor to a reaction, oscillating a mixture of a reaction product and water by adopting a mechanical oscillation technology, and carrying out ultrasonic treatment to obtain the MXene two-dimensional material. The invention also discloses the preparation method of the Cu/MXene catalyst. The preparation method of the Cu/MXene catalyst comprises the following steps: carrying out a mixed reaction on a copper source and an MXene two-dimensional material solution, carrying out centrifugal treatment, and drying a solid obtained after centrifugation so as to obtain the Cu/MXene catalyst. The two-dimensional catalyst material of the Cu/MXene catalyst has the characteristics of highdispersity and accurate control of the site position of an active component, and has good application prospects in the fields of a Sonogashira coupling reaction, reduction of 4-NP and the like.

The invention discloses a preparation method of sea urchin-shaped cadmium sulfide nanospheres. The preparation method comprises the following steps of mixing a single-source precursor, an organic alcohol and distilled water into a mixed solution, carrying out microwave heating of the mixed solution at a temperature of 80-100 DEG C for 3-7min with continuous stirring along the same direction, then carrying out microwave heating at a temperature of 150-165DEG C for 4-10min, washing the reaction solution orderly by distilled water and anhydrous ethanol, and carrying out drying to obtain the sea urchin-shaped cadmium sulfide nanospheres. The sea urchin-shaped cadmium sulfide nanospheres prepared by an ordinary pressure microwave method have high photocatalytic activity, and performances superior to performances of commercial cadmium sulfide, wherein after xenon lamp irradiation for 20min, the sea urchin-shaped cadmium sulfide nanospheres have a rhodamine B degradation rate of 75% and commercial cadmium sulfide has a rhodamine B degradation rate of 15%, and after xenon lamp irradiation for 140min, the sea urchin-shaped cadmium sulfide nanospheres have a rhodamine B degradation rate more than 95% and commercial cadmium sulfide has a rhodamine B degradation rate of 50%. The preparation method has simple processes, adopts the cheap raw materials stored easily, has a short preparation period and high repeatability, and is suitable for large-scale production.

The invention discloses a formaldehyde gas sensor based on a CoFe<2>O<4>/Co<3>O<4> double-shell structure cubic material and a preparation method thereof, and belongs to the technical field of gas sensors. The sensor consists of an Al<2>O<3> substrate, a Pd metal interdigital electrode, and a CoFe<2>O<4>/Co<3>O<4> double-shell structure cubic material prepared on the Al<2>O<3> substrate having thePd metal interdigital electrode by using a coating technology. When CoFe<2>O<4> is modified to a Co<3>O<4> hollow structure cube, lattice defects can be caused due to lattice mismatch; and these lattice defects can generate an oxygen vacancy to improve a gas sensitive response of a gas sensitive material. The invention has simple process, is small in prepared sensor, is applied to large-scale production and has an important application value. The formaldehyde gas sensor has the characteristics of simple preparation method, low cost, fast response recovery rate and low detection lower limit, and is expected to be produced in a large scale.

The invention belongs to the technical field of synthesis of nano-optoelectronic material, relates to a preparation method for a copper indium diselenide (CuInSe2) nanometer material, and in particular relates to a method for synthesizing a copper indium diselenide nanosheet through an ion exchange method. The method comprises the following steps of: synthesizing an In2Se3 (DETA) 0.5 precursor in a reaction kettle by adopting indium bromide and sodium selenite as reactants, and diethylenetriamine, hydrazine hydrate and deionized water as solvents; and by adopting the precursor powder and copper salt as the reactants, and glycol as the solvent, carrying out solvent thermal reaction in the reaction kettle to obtain the copper indium diselenide (CuInSe2) nanometer material. The indium diselenide nanosheet prepared by the method provided by the invention is the mesoporous material of which the average length is 3 micrometers and the width is 1.5 micrometers; the mesoporous material is provided with a plurality of pores; each nanosheet contains three elements which are respectively copper, indium and diselenide; and each element is uniformly distributed in the whole nanosheet. The method has the advantages of high reaction reproducibility, mild reaction condition, simple preparation method, low cost, high controllability, high product crystallinity, high output and purity, and is green and environment-friendly, and is expected for being used for mass production.

The invention discloses a mesoporous silica/carbon-sulfur compound for lithium sulphur battery cathode and its preparation method, and relates to a nanometer composite material and its preparation method, aiming to solve the technical problem that metal oxide with weak conductivity in the existing method can improve the impedance of the whole electrode and accordingly is not good for the rapid charge and discharge. The mesoporous silica/carbon-sulfur compound for lithium sulphur battery cathode is prepared from mesoporous silica, elemental sulfur and carbon material. The method includes steps of preparing sulphur silicon oxide composite, and dispersing the sulphur silicon oxide composite in the water; after magnetically stirring and dispersing, adding to water solution of a carbon material with concentration of 1 mg/mL; continuing to stir for 12-48 hours; settling, centrifuging, washing and drying the solution to obtain the mesoporous silica/carbon-sulfur compound for lithium sulphur battery cathode. The power is discharged at 0.1C, the top discharge capacity is up to 1625 mAhg<-1>; after the circulation for 500 circles, the compound still can keep about 1000 mAhg <-1>.

The invention relates to the field of preparation methods of cadmium sulfide (CdS) as an inorganic material, in particular to a method for preparing pine-like cadmium sulfide, which comprises the following steps of: (1) dissolving ethylenediamine into deionized water, then adding fluoboric acid, steaming water in the mixed liquid to obtain an ethylenediamine type ionic liquid; (2) mixing the ethylenediamine type ionic liquid prepared in the step (1) with the deionized water, adding a sulfide and cadmium chloride dihydrate to form a transparent solution; and (3) heating in a high-pressure autoclave to react, and then separating to obtain the target product. The heating temperature in the step (3) is 180-200 DEG C; the volume ratio of the ethylenediamine type ionic liquid to the deionized water in the step (2) is 3:1; and the sulfide in the step (2) is sulfourea. In the invention, the pine-like cadmium sulfide is prepared with a hydrothermal synthesis method with simple and easy operation, low cost, high product purity and possibility for mass production.

The invention discloses neodymium-iron-boron alloy powder, a neodymium-iron-boron magnet material, a preparation method and application. Wherein the neodymium-iron-boron alloy powder comprises the following components in percentage by mass: 29.5-31.5 wt% of R, R is a rare earth element, and R at least comprises Nd; b: 0.85 to 0.92 wt% of B, 0.1 to 0.5 wt% of S, and 64 to 68 wt% of Fe; 0.2 to 0.6 weight percent of N; wherein N comprises one or more of Zr, Nb, Hf and Ti; wherein the mass ratio of N to S is (1-4.1): 1, and S is from elemental sulfur and/or sulfur oxide. The neodymium-iron-magnetmaterial obtained by adopting the neodymium-iron-boron alloy powder can still remarkably improve the coercive force and the residual magnetism of the magnet material under the condition that the use of heavy rare earth elements is reduced or even the heavy rare earth elements are not added.

The invention relates to the technical field of batteries, in particular to a high-thermal-stability battery diaphragm as well as a preparation method and application thereof. The high-thermal-stability battery diaphragm comprises a diaphragm, and the diaphragm is provided with a silylene coating layer. The prepared diaphragm is high in thermal stability and good in safety, and the problem that the diaphragm is poor in thermal stability is solved. And heat preservation is carried out at 120 DEG C, the commercialized diaphragm is deformed and shrunk at high temperature, and the diaphragm with the modified thickness is still kept complete. According to the two-dimensional silylene nanosheet, the diaphragm is coated with a two-dimensional sheet structure, so that heat conduction is facilitated. Besides, the nanosheet structure can also alleviate the problem of increase of ion impedance caused by reduction of the porosity, because the nanosheet structure can provide an ion transmission channel, the ion transmission speed is greatly improved, and the influence of the coating on the porosity of the diaphragm is effectively solved. The preparation method of the diaphragm is simple and easy to implement, low in cost and hopeful for large-scale production.

The invention discloses ionic gel based on multiple physical crosslinking effects, a preparation method and a strain sensor. The ionic gel shows good mechanical properties (the maximum tensile stress is 610KPa, and the strain is 1160%), and the required ionic conductivity (gt at room temperature; 0.12 mS/cm). The sensor can still keep a gel state in a wide temperature range (20-180 DEG C), is suitable for severe environments, and has long-term electrical signal stability. In addition, the strain sensor can be used for detecting movement of different parts of a human body, including bending of fingers, wrists and elbows and slight throat shaking in swallowing and sounding processes, and shows quick response, high sensitivity and good repeatability, which indicates that the ionic gel has the potential of application in flexible electronic equipment.