17 results about "Chlorine doping" patented technology

The invention provides chlorine-doped nickel oxide, a preparation method and application thereof and a photoelectric device, and relates to the field of photoelectric materials.The preparation method of the chlorine-doped nickel oxide comprises the following steps that S10, an aqueous solution of nickel salt and chlorine salt is obtained, an alkaline solution is dropwise added, centrifugation is conducted, and a coprecipitate is obtained; s20, washing, drying and roasting the coprecipitate to obtain chlorine-doped nickel oxide; wherein the molar ratio of the nickel salt to the chlorine salt is (10-20): (1-4). In the technical scheme provided by the invention, the nickel salt and the chlorine salt are co-precipitated to generate a co-precipitate of nickel hydroxide and chloride, and then the co-precipitate is washed, dried and roasted to prepare the chlorine-doped nickel oxide, so that the hole mobility of the chlorine-doped nickel oxide is improved; the alkaline solution is dropwise added for coprecipitation, so that the particle size of the coprecipitate can be reduced, and the nanoscale chlorine-doped nickel oxide is prepared, so that the dispersity of the chlorine-doped nickel oxide in a mobile phase is improved, and the chlorine-doped nickel oxide can be applied to preparation of a hole transport film and improvement of the uniformity of the hole transport film.

The invention discloses a method for synthesizing a Cl-doped LFP / C electrode material. Comprising the following steps: mixing a lithium source, a phosphorus source and pickling iron oxide red in a solvent, performing ball milling, and adding a carbon source material and a chlorine doping source to obtain slurry; drying the obtained slurry to obtain a mixed powder material; and calcining and sintering the obtained mixed powder material to obtain the Cl-doped LFP / C electrode material. The Cl-doped LFP / C electrode material is prepared by taking the acid pickling iron oxide red as a raw material, so that the production cost of the LFP electrode material is saved, and a new thought is provided for comprehensive utilization of the acid pickling iron oxide red. And the prepared Cl-doped LFP / C electrode material shows excellent multiplying power and cycle performance.

This invention discloses a method for preparing a seawater-resistant, chlorine-doped carbon-based electrode material with five-membered ring defects. The method includes step one: mixing the chlorine-doped system; step two: pyrolysis activation treatment; step three: cooling and washing; and step four: rewashing and drying. This invention utilizes the synergistic construction of chlorine doping and five-membered ring defects. The localized negative charge induced by chlorine doping enhances its resistance to chloride ions in seawater, significantly improving the material's stability and service life in a seawater environment. The five-membered ring defects significantly improve the electronic structure and catalytic activity of the carbon material, thereby enhancing its electrocatalytic performance and improving the overall electrochemical performance of the carbon-based electrode material. The introduction of chlorine doping during the preparation process also serves as a template to promote the construction of porous nanosheet structures in the carbon material. The method is simple to operate, low in cost, and suitable for large-scale production. It balances structural innovation, superior performance, and process feasibility, possessing broad industrial prospects and technological promotion value.

The application relates to the technical field of sodium ion batteries, in particular to a chlorine-doped sodium iron sulfate composite positive electrode material and a preparation method and application thereof, which comprises a chlorine-doped sodium iron sulfate positive electrode material and carbon, and the mass ratio of the chlorine-doped sodium iron sulfate positive electrode material and the carbon is 1:0.01-0.1; the chemical formula of the chlorine-doped sodium iron sulfate positive electrode material is Na 2.4 Fe 1.8 (SO4) 3‑0.5y Cl y , wherein 0 The application adopts a modification strategy of doping oxygen sites with chlorine ions with a large ionic radius, adjusts the local crystal structure of sodium iron sulfate, expands the cell volume, provides more sufficient migration space for sodium ions, especially improves the sodium ion migration activity of the Na1 / Na2 sites, and further improves the specific capacity, rate performance and cycle life of the sodium iron sulfate.

The application belongs to the technical field of photothermal conversion materials, and particularly relates to a photothermal conversion coating, a preparation method thereof and a photothermal conversion device. The preparation method of the photothermal conversion coating comprises the following steps: obtaining a porous substrate, adsorbing an initiator in the porous substrate in situ to obtain a modified porous substrate, and performing a gas phase polymerization reaction on the modified porous substrate with a conjugated polymer monomer and a chlorine source to form a chlorine-doped photothermal conversion coating on the surface of the porous substrate in situ. In the preparation method of the photothermal conversion coating, the initiator is adsorbed in the porous substrate in situ, and the conjugated polymer monomer is diffused in the form of gas on the surface layer of the substrate, so that the monomer is polymerized in the pores of the substrate in situ, and the combination firmness of the coating and the substrate is improved. Meanwhile, the structuralization and doping effects improve the utilization rate of the coating to light energy, so that the photothermal conversion coating has the characteristics of high solar spectrum absorption efficiency, wide light absorption range, high absorption degree and high utilization rate, and exhibits super strong photothermal effect.

The invention discloses a 5D bending radius grade non-metal aerial optical cable and a preparation method thereof, the 5D bending radius grade non-metal aerial optical cable comprises a superfine bending insensitive optical fiber unit, the outer side of the superfine bending insensitive optical fiber unit is provided with a high tensile strength layer, the superfine bending insensitive optical fiber unit and the high tensile strength layer are wrapped in an inner protective layer, and the outer side of the inner protective layer is provided with a protective layer. And an outer protective layer is arranged on the outer side of the protective layer. According to the 5D bending radius level nonmetal aerial optical cable and the preparation method thereof, the bending insensitive optical fiber with a smaller diameter is adopted, macro-bending and micro-bending losses are reduced through core layer partitioning and cladding fluorine or chlorine doping, the requirement for the 5D bending radius is met, the bending flexibility of the aerial optical cable is improved, long-term stable operation under small-radius bending is achieved, and the service life of the aerial optical cable is prolonged. The cable has good waterproof performance, anti-interference performance, tensile performance, flame resistance and the like, and is suitable for overhead wiring of narrow channels among buildings in urban dense areas, high electromagnetic interference scenes and the like.

The invention provides a chlorine-doped five-membered ring defect carbon catalyst and a preparation method and application thereof.The preparation method comprises the steps that a structure induction and defect engineering synergistic strategy is adopted, a precursor rich in five-membered rings is subjected to high-temperature recombination through a fused salt heat treatment method, and a carbon network with highly-bent and edge active sites is constructed; chlorine or hydrogen chloride gas is introduced into an inert atmosphere for chlorine doping, so that the electronic structure regulation and control capability of the catalyst and the corrosion resistance to chloride ions are improved, and the chlorine-doped five-membered ring defect carbon catalyst has excellent electrocatalytic activity and can accurately regulate and control the electronic structure and surface reaction activity. According to the preparation method, the stability and corrosion resistance of the chlorine-doped five-membered ring defect carbon catalyst are remarkably improved, and the chlorine-doped five-membered ring defect carbon catalyst shows excellent performance in seawater electrolyte containing high-concentration Cl <->.

The invention provides a method for preparing a cathode material for alkaline electrolyzed water based on molten salt activation and the cathode material prepared by the method, and belongs to the technical field of electrolyzed water electrodes. The method comprises the steps that a metallic nickel substrate subjected to surface cleaning treatment is subjected to corrosion treatment based on solvothermal reaction in a mixed solution containing tungstate and fluoride, nickel tungstate of a smooth nanorod structure is formed on the surface of the metallic nickel substrate, and the nickel-based composite material is obtained; under the protection of inert atmosphere, the nickel-based composite material is placed in molten salt for a solid-liquid reaction, zinc, bismuth and chlorine in the molten salt are jointly doped into nickel tungstate, and the cathode material for alkaline electrolyzed water is obtained. The surface material of the cathode material for alkaline electrolysis of water is zinc, bismuth and chlorine doped rod-like nickel tungstate rich in nano-pores. Through verification, the alkaline electrolyzed water cathode electrode shows high-efficiency electro-catalysis water decomposition performance.

The invention discloses a method for preparing 1, 2, 3, 4-tetrahydroquinoline by electro-catalysis of quinoline hydrogenation in an acidic system through a chlorine-doped copper-silver bimetallic catalyst. Two steps of simple electro-deposition reaction are carried out on foamy copper, the copper cubic nano array and the silver nano particles are grown respectively, the performance of the catalyst is further improved through chlorine doping, the catalyst is simple in preparation process and low in cost, the reaction selectivity can reach 99.9%, and the yield can reach 97.8%; the method provided by the invention realizes synthesis of 1, 2, 3, 4-tetrahydroquinoline by electrocatalytic hydrogenation of high-concentration quinoline in an acidic environment, is green and environment-friendly, is efficient and energy-saving, and has industrial production prospects.

The invention discloses a preparation method of a chlorine-doped PbS colloidal quantum dot film, and relates to the technical field of PbS colloidal quantum dot film doping, in particular to a Cl-doped colloidal quantum dot. The chlorine-doped PbS colloidal quantum dot film is formed by doping 1 * 10 <-3 > M Cl in PbS colloidal quantum dots. The preparation method comprises the steps of preparation of PbS colloidal quantum dot powder, preparation of a PbS colloidal quantum dot film, preparation of an HCl / ethanol solution and doping. According to the solution method doping, expensive equipment of doping technologies such as ion implantation and thermal diffusion does not need to be used, the experiment cost is greatly reduced, and commercialized application becomes possible.

The invention discloses a preparation method of a seawater-corrosion-resistant chlorine-doped five-membered ring defect carbon-based electrode material. The preparation method comprises the steps of 1, mixing of a chlorine-doped system, 2, pyrolysis activation treatment, 3, cooling and washing, and 4, back washing and drying. Through cooperative construction of chlorine doping and five-membered ring defects, local negative electricity caused by chlorine doping enhances the corrosion resistance of the material to chloride ions in seawater, the stability of the material in a seawater environment is remarkably improved, the service life of the material in the seawater environment is remarkably prolonged, the electronic structure and catalytic activity of the carbon material are remarkably improved through the five-membered ring defects, and therefore the electro-catalytic performance is enhanced; chlorine doping is introduced in the preparation process, meanwhile, chlorine serves as a template to promote porous nanosheet structure construction of the carbon material, operation is easy and convenient, cost is low, the method is suitable for large-scale production, structural innovation, performance superiority and process feasibility are considered, and the method has wide industrialization prospects and technical popularization value.

The invention relates to the technical field of sodium ion batteries, in particular to a chlorine-doped sodium ferric sulfate composite positive electrode material and a preparation method and application thereof, the chlorine-doped sodium ferric sulfate composite positive electrode material comprises a chlorine-doped sodium ferric sulfate positive electrode material and carbon, and the mass ratio of the chlorine-doped sodium ferric sulfate positive electrode material to the carbon is 1: 0.01-0.1; the chemical formula of the chlorine-doped sodium ferric sulfate positive electrode material is Na < 2.4 > Fe < 1.8 > (SO4) < 3-0.5 > y Cly, wherein y is more than 0 and less than or equal to 0.2. According to the invention, a modification strategy of doping chloride ions with oxygen sites with large ion radius is adopted, a more sufficient migration space is provided for sodium ions by adjusting the local crystal structure of sodium ferric sulfate, enlarging the unit cell volume and the like, and particularly, the migration activity of sodium ions at Na1 / Na2 site is improved, so that the specific capacity and rate capability of sodium ferric sulfate are improved, and the cycle life of sodium ferric sulfate is prolonged.

The invention discloses a chlorine-doped zinc sulfide fluorescent material as well as a preparation method and application thereof, and belongs to the technical field of fluorescent materials. The preparation method comprises the following steps: mixing a zinc source, a sulfur source and a chlorine source to obtain a mixed material; coating the mixed material with a molten salt medium, and then performing heat treatment to obtain the chlorine-doped zinc sulfide fluorescent material, the chlorine-doped zinc sulfide fluorescent material takes ZnS as a matrix and is doped with Cl <->; the doping molar concentration of Cl <-> is greater than 0 and less than 100%. A specific molten salt shielding method is adopted, specific doping of Cl <-> in a ZnS matrix can be achieved, and the prepared chlorine-doped zinc sulfide fluorescent material has the advantages of being high in color change contrast ratio, steady-state luminous intensity and afterglow intensity, wide in luminous modulation range and good in cycling stability; the material prepared by the method can be used for preparing a photochromic multi-mode fluorescent device, and multi-mode information storage and encryption are realized.

The invention relates to a preparation method and application of a metal / metal chloride composite negative electrode material, and belongs to the technical field of chloride ion battery negative electrode materials. The preparation method of the metal / metal chloride composite negative electrode material comprises the following steps: S1, mixing metal powder and corresponding metal chloride according to a certain proportion to obtain a mixture; s2, the mixture and hard alloy balls are mixed and subjected to ball milling for a period of time at a certain rotating speed, and powder is obtained; and S3, pressing the powder into an electrode plate through a cold pressing method to obtain the metal / metal chloride composite negative electrode material. The method is simple in operation process and easy for industrial production; the prepared composite negative electrode material is used for a chloride ion battery, the chlorine doping amount of an organic chloride positive electrode is increased in the charging process by utilizing the rich chlorine of the negative electrode, and the loss of chloride ions in the charging and discharging process is supplemented; the negative electrode prepared by the preparation method has relatively high discharge capacity and excellent cycling stability.

A unilateral dimethylhydrazine (UDMH) gas sensor based on chlorine-doped In2O3 nanoparticles and its preparation method belong to the technical field of semiconductor metal oxide gas sensors. The sensor comprises an Al2O3 ceramic tube substrate with two parallel, annular, and separate gold electrodes on its outer surface; a chlorine-doped In2O3 sensitive material coated on the outer surface of the Al2O3 ceramic tube and the gold electrodes; and a nickel-chromium heating coil placed within the Al2O3 ceramic tube. The present invention utilizes a simple hydrothermal method to dope non-metallic chlorine into the In2O3 material with the aid of an ionic solution, significantly improving the sensitivity of the In2O3-based sensor to UDMH (71.0 to 100 ppm) and accelerating the sensor's response speed to UDMH gas (2 seconds to 100 ppm). Furthermore, the sensor exhibits excellent selectivity, repeatability, and long-term stability, and has broad application prospects.

The application provides a chlorine-doped nickel / activated carbon catalyst and a preparation method and application thereof, and particularly relates to the field of catalysis technology. The chlorine-doped nickel / activated carbon catalyst prepared by the application comprises nickel / activated carbon and chlorine elements doped in the nickel / activated carbon, the nickel / activated carbon comprises activated carbon and nickel particles loaded on the surface of the activated carbon; and the mass ratio of chlorine to nickel in the chlorine-doped nickel / activated carbon catalyst is 0.5-1.3:100. The electronic interaction between nickel and activated carbon is effectively improved by chlorine doping, and the stability of the nickel / activated carbon is strengthened. Experimental results show that the chlorine-doped nickel / activated carbon catalyst provided by the application has good catalytic stability and catalytic activity, the nickel content in the catalyst is only reduced by 13.7% after 30 hours of reaction, the carbon deposition amount is 24.9%, and the conversion rate of ethanol is still above 70%.

The invention discloses an integrated reverse osmosis membrane assembly device based on a chlorine-doped antibacterial and anti-pollution membrane and a self-adaptive flow field structure. An anti-pollution composite membrane comprises a multi-stage vortex flow guide net and the chlorine-doped antibacterial and anti-pollution membrane, the chlorine-doped antibacterial and anti-pollution film comprises a composite base film and a chlorine-doped nano composite coating formed by vapor deposition in a chlorine atmosphere. The chlorine element in the chlorine-doped nano coating is embedded into aluminum oxide or silicon oxide nano particles (the particle size is 50-100 nm) in a lattice form, the chlorine deposition rate per unit membrane area is 0.5-2.0 micrograms / cm < 3 >, and the nano particles are partially exposed to the membrane surface (the exposure ratio is 40-60%) in a semi-embedded structure, so that the membrane is endowed with lasting antibacterial property and binding force. According to the anti-pollution composite membrane disclosed by the invention, the chlorine-doped nano coating deposited under the chlorine atmosphere is chemically bonded with the base membrane, so that the membrane has double functions of adhesion resistance and sterilization, and the design of the multi-stage vortex flow guide net has the function of adaptively adjusting the fluid shear force.