129 results about "Electroless deposition" patented technology

The invention provides a flow battery composite electrode, a preparation method thereof and a flow battery. The preparation method comprises the following steps: placing a pretreated carbonaceous substrate in a mixed solution of a surfactant, an electrolyte and a transition metal salt, growing a metal oxide nanosheet array on the surface of the pretreated carbonaceous substrate by using an electrochemical deposition process, washing, drying and roasting to obtain the flow battery composite electrode, wherein the feeding ratio of the surfactant to the transition metal salt is (1-2) g: (0.02-0.2) mol. The invention also provides the flow battery composite electrode prepared by the preparation method and a flow battery prepared from the electrode. According to the preparation method, the electrochemical reaction activity of the electrode in the all-vanadium redox flow battery can be optimized by regulating and controlling the chemical composition and the microstructure of the catalyst loaded on the surface of the carbon fiber.

The present invention relates to the technical field of electrodeposition, and relates to a simulation method for flow field distribution and deposition morphology in ultrafast laser-assisted electrochemical deposition. The steps of the method comprise: constructing, in multiphysics simulation software, a two-dimensional axisymmetric multiphysics coupled field model for heat transfer, solid and fluid heat transfer, tertiary current distribution, and laminar flow; constructing a geometric model of a deposition cell and a substrate, and setting laser properties, material physical parameters, and electrodeposition properties in the multiphysics simulation software; constructing an ultrafast laser heat transfer model on the basis of a two-temperature equation; setting initial and boundary conditions of the ultrafast laser heat transfer model, and constructing an electrodeposition field; coupling the ultrafast laser heat transfer model with the electrodeposition field to construct an ultrafast laser-assisted electrochemical deposition model; delineating a grid; and performing calculation and analysis. In the present invention, ultrafast laser is incorporated to perform multiphysics coupling of a thermal field, a flow field, an electric field, etc., and a two-temperature equation and tertiary current distribution are incorporated to the model, thereby achieving the accuracy and comprehensiveness of prediction models.

The invention provides a one-dimensional nano material with wave-absorbing performance as well as a preparation method and application of the one-dimensional nano material. The preparation method comprises the following steps: (1) sequentially carrying out heavy ion beam irradiation, ultraviolet light sensitization and chemical etching on a high polymer material template to obtain an etched template; (2) spraying metal on one side of the etching template to form a gold layer; and (3) electrochemical deposition is conducted on the side, not sprayed with metal, of the etching template obtained in the step (2), deposition liquid adopted in the electrochemical deposition is an aqueous solution containing TiF4 and CoCl2, and therefore the Co / TiO2 composite nanowire is generated. Through the preparation method, the Co / TiO2 composite wave-absorbing material which is arranged in parallel, high in impedance matching capability and excellent in microwave absorption performance can be obtained.

This invention provides a method for preparing (002) crystal-plane oriented metallic zinc and its application. The invention employs a two-electrode electrochemical deposition technique, using iron foil, titanium foil, or copper foil as the working electrode, commercial zinc foil as the counter electrode, and an aqueous zinc salt solution as the electrolyte. Constant current density discharge deposition is used to deposit (002) crystal-plane oriented metallic zinc on the working electrode; the constant current density is 50 mA cm⁻¹. ‑2 ~200 mA cm ‑2 The (002) crystal-plane oriented metallic zinc prepared by this invention can be used in rechargeable zinc-ion batteries. The two-electrode electrolytic cell device used in the preparation of metallic zinc in this invention is simple, the preparation process is straightforward, and the preparation method is more universal. The (002) crystal-plane oriented metallic zinc prepared according to the method of this invention can suppress zinc dendrite growth and hydrogen evolution, thereby improving the service life of rechargeable zinc-ion batteries.

A metal interconnect structure is doped with zinc, indium, or gallium using top-down doping processes to improve diffusion barrier properties with minimal impact on line resistance. Dopant is introduced prior to metallization or after metallization. Dopant may be introduced by chemical vapor deposition on a liner layer at an elevated temperature prior to metallization, by chemical vapor deposition on a metal feature at an elevated temperature after metallization, or by electroless deposition on a copper feature after metallization. Application of elevated temperatures causes the metal interconnect structure to be doped and form a self-formed barrier layer or strengthen an existing diffusion barrier layer.

A method for manufacturing a multi-layer ceramic capacitor (MLCC) end electrode and printing a full-area inner electrode protective layer is disclosed. The method uses thin dielectric ceramic layer thickness and a plurality of nickel inner electrode stacks to achieve high capacitance. The method produces high-density electrode-to-ceramic ratio end edges and side edges. The method uses an ultralow-temperature electrochemical deposition coating technology to manufacture a low-stress multi-layer ceramic capacitor end electrode and an insulating protective layer, thereby improving the yield of the multi-layer ceramic capacitor and reducing manufacturing costs.

The invention provides a metal hydroxide (LDH) and a preparation method and application thereof in seawater electrolysis, and belongs to the field of new materials and hydrogen energy preparation. Aqueous solutions of ferric salt, cobalt salt and nickel salt are stirred to obtain a mixed solution; under a constant voltage, metal ions of the mixed solution are subjected to a reduction reaction on the surface of the working electrode to generate ternary NiCoFe-LDH, namely, the metal hydroxide is obtained; according to the method, a high-activity and high-stability nano-structure material directly grows on a conductive substrate through an electrochemical deposition method of three metal (Fe, Co and Ni) hydroxides in a specific proportion, and the low-cost seawater electrolysis catalyst can be constructed only through direct in-situ growth of LDH through a potentiostatic method, so that the high-temperature and high-pressure requirements of a traditional hydrothermal method are avoided, and the method is suitable for industrial production. The LDH nanosheet array structure directly grown in the invention avoids the use of a binder, improves the mechanical stability of the electrode and prolongs the cycle life of the electrode. The ternary NiCoFe-LDH is used as an anode material of an electrolytic tank and can be used for directly electrolyzing seawater to produce hydrogen.

The invention provides selenium nanoparticles as well as a preparation method and application thereof, and belongs to the technical field of selenium nanoparticles. Acetone ultrasonic cleaning and chemical polishing pretreatment are performed on a pure titanium substrate to obtain a clean surface, an anodic oxidation method is adopted to prepare a # imgabs0 # nanotube array carrier, and the nano-particles are prepared into selenium nano-particles. The method comprises the following steps: accurately depositing selenium nanoparticles on a carrier by using an electrochemical deposition method, realizing load control by combining an electrochemical kinetics principle, realizing uniform dispersion of the particles by matching an ultrasonic dispersion technology with a particle swarm optimization algorithm, and carrying out centrifugal separation and vacuum drying to obtain a spherical selenium nanoparticle product. And a multi-dimensional quality control detection system of a transmission electron microscope, an X-ray photoelectron spectroscopy and dynamic light scattering is established, so that the technical problems that the particle size distribution is non-uniform and the deposition load is difficult to accurately control in the preparation process of the selenium nanoparticles are solved.

The invention discloses an organic-inorganic multi-layer composite coating material with functions of promoting cell adhesion, resisting infection and promoting osteogenesis and a preparation method of the organic-inorganic multi-layer composite coating material. The method specifically comprises the following steps: 1) carrying out primary sand blasting treatment on a titanium / titanium alloy sample, then removing an oxide layer on the surface of the titanium / titanium alloy sample by using an ultrasonic oil removal and glow discharge cleaning process, and constructing a copper / zinc alloy coating on the surface of the sample by combining an electrochemical deposition process; 2) carrying out micro-nano processing on the coating by using a secondary sand blasting process to introduce a topological morphology; (3) depositing a polydopamine PDA coating on the surface by using an in-situ auto-polymerization process, and simultaneously dipping to complete the chelation of Fe < 3 + > and PDA; 4) further utilizing an ultrasonic impregnation process to realize conversion from PDA-Fe < 3 + > chelation to PDA-Fe < 3 + >-salvianolic acid b chelation so as to introduce a salvianolic acid b layer, and washing, air-drying and sterilizing to obtain the material. The material has multiple cell adhesion promotion, infection resistance and multiple osteogenesis promotion functions, and can realize innovation of coating technologies in the fields of orthopedics, dentistry and the like.

The application discloses an electrochemical deposition color developing device, which comprises an insulating substrate, a first electrode, a second electrode and an electrolyte; the second electrode comprises a metal adhesion layer and a metal current collector which are arranged in layers; the first electrode serves as a positive electrode, the metal current collector serves as a negative electrode, and the electrolyte forms an electrochemical cell with the first electrode and the second electrode. The application discloses a camouflage device based on the electrochemical deposition device, which comprises an intelligent sensing control system for switching output control voltage and an electrochemical deposition color developing device based on control voltage regulation. The electrochemical deposition color developing device has simple preparation process and can reduce cost; the color developing function is realized without complex micro-nano structure control deposition color developing, and the color developing function and the energy storage function are combined into one based on voltage regulation.

The invention provides a composite supercapacitor material, a preparation method thereof and a supercapacitor, and the preparation method comprises the following steps: immersing a foam metal substrate in a sulfur-molybdenum source deposition solution, and carrying out the first electrodeposition to obtain a foam metal substrate loaded with amorphous molybdenum sulfide; and immersing the foam metal substrate loaded with amorphous molybdenum sulfide into a silver source deposition solution, and carrying out second electrodeposition to obtain the composite supercapacitor material which comprises the foam metal substrate loaded with amorphous molybdenum sulfide and silver. According to the preparation method, the silver-amorphous molybdenum sulfide-foam metal composite electrode material is prepared through two-step electrochemical deposition, the preparation process is simplified, high temperature and high pressure are not needed, large-scale production can be achieved, and a high-performance water-based and solid-state symmetric supercapacitor constructed based on the material has a good application prospect. And collaborative improvement of energy density and power density and practicability of a solid-state device can be realized.

The invention belongs to the technical field of oral implant materials, and relates to a magnesium metal-guided bone regeneration membrane, a preparation method thereof and a product for preparing the magnesium metal-guided bone regeneration membrane. The magnesium metal-guided bone regeneration membrane comprises a bone repair combination product of the magnesium metal-guided bone regeneration membrane. The preparation method comprises the following steps: respectively providing an electrochemical deposition solution and a polysaccharide-containing solution; the electrochemical deposition liquid comprises a calcium ion donor, a phosphate ion donor and mussel mucin; the method comprises the following steps: placing a magnesium metal matrix in an electrochemical deposition solution, and carrying out first-stage electrochemical deposition under a first electrochemical deposition condition to prepare an intermediate 1; placing the intermediate 1 in an electrochemical deposition solution, performing second-stage electrochemical deposition under a second electrochemical deposition condition, cleaning, and drying to prepare an intermediate 2; placing the intermediate 2 in a solution containing polysaccharide, dip-coating the polysaccharide, and drying; the first electrochemical deposition condition and the second electrochemical deposition condition are respectively as follows: the voltage is 1-5V and 10-60V; the membrane has the biological functions of low corrosion rate, high bonding strength, inflammation resistance, bacteria resistance, osteogenesis promotion and the like.

This invention belongs to the field of lithium battery technology, and particularly relates to a method for large-scale preparation of ultrathin lithium anodes. The method involves preparing lithium powder from lithium metal using emulsion methods, vacuum distillation, ultrasonic crushing, mechanical pulverization, or chemical deposition. The lithium powder and a two-dimensional material are then uniformly dispersed in solvents with similar boiling points or in the same solvent, forming a lithium powder dispersion and a two-dimensional material dispersion, respectively. The two-dimensional material dispersion and the lithium powder dispersion are cross-mixed and coated onto a substrate to obtain a lithium powder-two-dimensional material composite film. A layer of anti-lithium dendrite dispersion or a lithium-affinity material dispersion is then spin-sprayed separately onto the surface of the lithium powder-two-dimensional material composite film. The electrode is dried to remove the solution, and the film is rolled to obtain an ultrathin lithium anode. Compared to existing technologies, this invention allows for large-scale, rapid, and continuous production at low temperatures. The resulting composite film has a surface protective layer and is temporarily stable in air, facilitating direct cutting and application.

The application discloses a flexible transparent aqueous zinc ion battery polyaniline / vanadium oxide composite positive electrode sheet and a preparation method thereof, and belongs to the technical field of aqueous zinc ion batteries. The preparation method comprises the following steps: using vanadyl sulfate aqueous solution as an electroplating solution, using a gold grid / PET as a working electrode, and using a platinum sheet as a counter electrode to construct a two-electrode structure; a vanadium oxide layer is deposited on the surface of the gold grid / PET by adopting a constant-voltage electrochemical deposition method, and a vanadium oxide / gold grid / PET is prepared; sulfuric acid and polyaniline are added into deionized water to prepare an electroplating solution, the vanadium oxide / gold grid / PET is used as the working electrode, the platinum electrode is used as the counter electrode, and a saturated calomel electrode is used as a reference electrode to construct a three-electrode structure; a polyaniline layer is deposited on the surface of the vanadium oxide / gold grid / PET by adopting a constant-voltage electrochemical deposition method, and the composite positive electrode sheet is obtained.

The invention discloses a photoelectric detector with a silicon nanowire / lead sulfide / graphene composite structure. The photoelectric detector comprises an indium gallium electrode, a silicon substrate, a silicon oxide layer, a silicon nanowire, a lead sulfide submicron crystal and a graphene / PMMA layer which are sequentially arranged from bottom to top, the solar cell further comprises a gold electrode arranged on the surface of the silicon oxide layer, and the other face of the gold electrode is in contact connection with the graphene / PMMA layer. According to the photoelectric detector, the lead sulfide crystal film is grown on the surface of the silicon nanowire in situ through an electrochemical deposition method, and a silicon / lead sulfide structure with good interface contact and synergistic effect is constructed; meanwhile, rapid separation and transportation of carriers are realized by utilizing high carrier mobility of the silicon nanowires and heterojunction energy band engineering, and dark current and response speed are effectively reduced. Finally, a suspended graphene top electrode structure design is introduced, effective collection of signals is realized by using the advantages of high light transmittance (97.7%) and mechanical flexibility of graphene, and efficient transmission of photon-generated carriers at an interface is ensured.

The invention discloses a technological method for plating gold on fuzz buttons and a special tool, and belongs to the field of surface treatment of electronic components. The method comprises the following steps: fixing the fuzz button on a special electroplating auxiliary tool, wherein the tool consists of a small positioning disc, a net-shaped connecting structure and an electrode plate; immersing the tool into a gold-containing electroplating solution, switching on a power supply through an electrode plate, and simultaneously starting an ultrasonic generating device to carry out vibration plating; gold ions are uniformly deposited on the surface of the fuzz button and a ten-micron-level random winding gap in the fuzz button by utilizing micro-stirring and strong infiltration capacity generated by an ultrasonic cavitation effect and cooperating with an electrochemical deposition effect; the problems that in the prior art, plating is not uniform, cost is high, and the structure of the fuzz button is prone to being damaged are solved, high-efficiency, low-cost and high-quality gold plating is achieved, the contact resistance consistency of the fuzz button is remarkably improved, and the mechanical life of the fuzz button is remarkably prolonged.

The invention discloses a preparation method of a female template, the female template, a preparation method of a material with a nano-structure shape and the material with the nano-structure shape. The method comprises the following steps: constructing a filler film for copying a structural shape on a first surface of a substrate material; stripping the filler film from the surface of the substrate material, and depositing a conductive metal layer on the surface of the filler film to form a conductive filler film; performing electrochemical deposition on the first surface of the conductive filler film to form a female template metal layer; and removing the conductive filler film, and making the remaining female template metal layer into the female template. According to the invention, the electrodeposited nickel metal layer is introduced as a female template raw material, and the prepared female template has flexibility and keeps a multi-element pattern form with high precision by utilizing the physicochemical properties of nickel; and the use frequency of cyclic imprinting is far greater than that of an organic polymer flexible female template and a silicon-based rigid female template in the prior art, so that the stability of a female template preparation process is remarkably improved.

The invention discloses a non-noble metal heterogeneous catalyst, a preparation method and application of the non-noble metal heterogeneous catalyst in electro-catalytic synthesis of 2, 5-furandicarboxylic acid from 5-hydroxymethylfurfural, and the preparation method comprises the following steps: (1) dissolving cobalt salt and copper salt in deionized water to obtain an electrolyte; (2) immersing a pretreated foamed nickel substrate in the electrolyte, and carrying out constant potential electrochemical deposition in a three-electrode system to prepare a pre-CoCu / NF electrode; (3) activating pre-CoCu / NF in a 1M KOH aqueous solution through an electrochemical cyclic voltammetry method to obtain a non-noble metal heterogeneous catalyst; the preparation method is simple, efficient, green, free of pollution and easy to amplify. The prepared non-noble metal heterogeneous catalyst is high in activity, the non-noble metal heterogeneous catalyst serves as a positive electrode material for electrocatalytic oxidation of 5-hydroxymethylfurfural, the electrode production efficiency is remarkably improved, the current density and FDCA selectivity of HMOR are remarkably improved, and the electrochemical performance far exceeds that of a catalyst prepared through a conventional strategy.

This invention relates to a metal-organic coordination catalyst, its preparation method, and its application. The preparation method includes the following steps: pretreatment of nickel foam; dissolving ferric nitrate nonahydrate and nickel nitrate hexahydrate in deionized water to obtain an electrolyte; chemically depositing an intermediate catalyst in the electrolyte; and preparing the catalyst using a solvothermal method, wherein the mixed solution is prepared by dissolving 2,5-dihydroxyterephthalic acid in deionized water, anhydrous ethanol, and N,N-dimethylformamide (DMF), and the intermediate catalyst is completely immersed in the mixed solution to obtain the catalyst. This invention combines electrochemical deposition and a solvothermal method to synthesize a catalyst with a unique rod-like morphology. The samples achieved 100, 500, and 1000 mA / cm². 2 It requires only 264, 296 and 308 mV overpotentials at current densities, respectively, and can maintain stability for 1000 hours at a current density of 1000 mA / cm2; at the same time, it has high production efficiency, low cost, and is suitable for large-scale industrial production.

An assembly (1) with at least one electrical feedthrough (2) comprises a body (10) with an opening (12) through which an electrical conductor (16) is held in electrical insulation from the body by a fixing material (14) which closes the opening. The surface of the conductor not covered by the material is wholly provided with a first coating (20), the surface of the conductor covered by the material is free of the first coating; the surface of the body not covered by the material is free of the first coating, optionally provided with a second coating different from the first coating. Alternatively, the surface of the body not covered by the material is wholly provided with the first coating, the surface of the body covered by the material is free of the first coating; the surface of the conductor not covered by the material is free of the first coating, optionally provided with a second coating (30) different from the first coating. The first coating has one or more layers, at least the outermost layer being a layer of electroless deposition of the first coating material.

This invention relates to the field of copper-based catalyst preparation, and discloses a self-supporting copper-based electrode, its preparation method, and its applications. The method for preparing a self-supporting copper-based electrode includes: placing a carbon-based support in an electrolyte containing copper salt, and performing constant-current electrochemical deposition under the induction of hypochlorous acid. The self-supporting copper-based electrode prepared by this method exhibits excellent electrocatalytic performance while also possessing the advantage of simple processing.

A method of producing an aperture plate for a nebuliser is described. A substrate (2) is patterned with a resist (5, 6) and a metal (10) is applied by electroless deposition so that the resist forms a desired aperture pattern. The substrate (2) has an array of domes (2(b)) to provide aperture plates (16) with domes (101) and flanges (102) without need for application of mechanical force pressing after deposition. The substrate is shaped for simultaneous manufacture of a plurality of aperture plates in which the resist pattern provides a deposition region for each aperture plate. By using electroless plating the aperture plate accuracy is excellent, especially for defining apertures having a diameter in the rang of only less than 10 μm, and having improved corrosion and fracture resistance for high frequency nebulizer operation.

The application discloses a method for synthesizing Au-Pt nanowire arrays by an electrochemical deposition method on carbon paper with aniline as a ligand and application thereof, and can be applied to methanol electro-oxidation reaction. After growing gold nanowire arrays on a conductive substrate by using an electrochemical deposition method with aniline as a ligand, Au-Pt nanowires are synthesized by a secondary electro-deposition mode. The electrochemical deposition has controllable reduction capacity, convenient operation and environmental friendliness. The combination of gold nanowires and platinum (Pt) can significantly improve the activity of a catalyst. The diameter of gold-platinum nanowires prepared by the electrochemical deposition method assisted by an aniline ligand can reach 30 nanometers. The increase in the size is helpful to expand the electrochemical active surface area, thereby enhancing the electron transmission efficiency and further improving the electro-catalytic performance. The gold nanowires are integrated into platinum-based nanomaterials, and for an anode catalyst of a direct methanol fuel cell, the gold nanowires can significantly improve the catalytic efficiency of a methanol oxidation reaction.

The utility model discloses a cyanide-free plating imitation gold and electrophoretic coating plating layer structure which comprises a steel substrate, and a cyanide-free pre-plating copper layer, an acid copper plating layer, a nickel-copper alloy plating layer, a cyanide-free imitation gold plating layer and an electrophoretic varnish coating which are sequentially prepared on the steel substrate from inside to outside. According to the cyanide-free plating imitation gold and electrophoretic coating plating layer structure disclosed by the utility model, the binding force of the plating layer is tested by a thermal shock method according to GB / T 5270-2005 < GB / T 5270-2005 < GB / T > 5270-2005 < GB / T > 5270-2005 > < GB / T > 5270-2005 > < GB / T > 5270-2005 > < GB / T > 5270-2005 > < The acetate fog test is carried out for 168 hours according to GB / T 10125-2021 Artificial Atmosphere Corrosion Test Salt Spray Test, no red corrosive substance is generated on the surface of a plated part, and the plating layer structure has good corrosion resistance.

The present invention discloses a fully automatic electrodeposition perovskite solar cell preparation device and method, belonging to the technical field of solar cell preparation devices. The device comprises: a base, a control module, and a motion slide assembly, a mechanical claw assembly, a power supply assembly, a reaction chamber, a liquid injection assembly, a liquid discharge assembly, an air blowing assembly, and a liquid level detector, each connected to the control module. The present invention not only facilitates the selection of electrochemical deposition time and conditions, but also enables the preparation of perovskite solar cells of different areas by changing the size of the reaction chamber. The device provided by the present invention is simple to operate, has a simple structure, low manufacturing cost, and a high degree of automation. It is very suitable for preparing large-area perovskite solar cells and promotes the development of large-area, low-cost, fully automatic perovskite solar cell preparation technology.

Methods of treating metal nanocrystals are provided. In embodiments, such a method comprises exposing metal nanocrystals comprising a metal and characterized by at least one twinning boundary therein, to a plating solution comprising a reducing agent and coating metal cations comprising a different metal, under conditions to form a coating of the different metal on surfaces of the metal nanocrystals via electroless deposition by chemical reduction of the coating metal cations, thereby providing coated metal nanocrystals. Methods of forming bulk nanostructured metal alloys from the coated metal nanocrystals are also provided.

The invention discloses a high-entropy nano environmental catalytic material as well as a preparation method and application thereof, the catalytic material is prepared by taking SiO2 as a substrate and a Fe2O3-Co3O4-NiO-CuO-ZnO composite oxide as a component and adopting a combined method of magnetron sputtering coupling solvothermal, ultrasonic-assisted electrochemical deposition, microwave hydrothermal in-situ self-assembly and plasma-assisted ozonation. The catalytic material is environment-friendly, rich in active interface and high in specific surface area, can efficiently catalyze and degrade organic pollutants such as chlorobenzene at low temperature, and has a wide market application prospect.

A process for the electroless deposition palladium on a substrate, the process comprising the steps of: (a) preparing the substrate to accept electroless palladium deposited thereon; and (b) bringing the substrate into contact with an electroless palladium composition, the electroless palladium composition comprising: (i) a source of palladium ions; (ii) one or more complexing agents; (iii) a reducing agent; and (iv) a plating rate enhancer, wherein the plating rate enhancer comprises a source of antimony ions.

The invention discloses a method for preparing tellurium and cadmium by electrolyzing cadmium telluride through a solid anode, and belongs to the technical field of electrochemical metallurgy. Comprising the following steps: S1, determining an electrochemical deposition voltage: determining the deposition voltage of a solid raw material containing cadmium telluride through an electrochemical test by taking a eutectic solvent as an electrolyte; s2, a cadmium telluride electrode is prepared, specifically, a material loading cavity with an opening is formed in the inert electrode, and a solid-state raw material containing cadmium telluride is loaded into the material loading cavity to serve as an anode; s3, electrochemical deposition: taking the eutectic solvent in the step S1 as a deposition solution, taking the cadmium telluride electrode in the step S2 as an anode, matching with a cathode, ensuring that the raw materials in the material loading cavity are immersed in the deposition solution, and applying the electrolytic voltage determined in the step S1 to perform electrochemical deposition; and after deposition is finished, metal tellurium is deposited in the material loading cavity of the anode, and elemental cadmium is deposited on the surface of the cathode. The method can realize low-temperature one-step direct separation of cadmium telluride.

The application provides one-dimensional nanometer material with wave-absorbing performance and a preparation method and application thereof. The preparation method comprises the following steps: (1) a polymer material template is subjected to heavy ion beam irradiation, ultraviolet photosensitization and chemical etching in sequence to obtain an etching template; (2) gold is sprayed on one side of the etching template to form a gold layer; and (3) electrochemical deposition is carried out on the side of the etching template obtained in the step (2) which is not sprayed with gold, wherein a deposition solution used in the electrochemical deposition is an aqueous solution containing TiF4 and CoCl2, so as to generate Co / TiO2 composite nanowires. Through the preparation method, the Co / TiO2 composite wave-absorbing material with parallel arrangement, high impedance matching capability and excellent microwave absorption performance can be obtained.