82 results about "Tungsten trioxide" patented technology

The invention discloses a method for preparing a single-layer tungsten diselenide nanoband based on a space confinement strategy. By changing the flow and the growth time of hydrogen, effective control on the width and the thickness of a nanoband can be realized. The method comprises the following steps: uniformly spraying tungsten trioxide powder to one substrate, then covering the substrate by the other substrate, and forming micro reaction space which is of a 'sandwich'-like structure. Growth of a tungsten diselenide nanoband is carried out by utilizing a constant-pressure chemical vapor deposition method; physicochemical characteristics of a one-dimensional transition metal chalcogenide strongly depend on suspension key types on the edge of the one-dimensional transition metal chalcogenide, metallic properties are displayed by an ultranarrow band, and conversion from the metallic properties to semiconductor properties can be displayed from the edge to the center of a wider band; the tungsten diselenide nanoband is widely applied to micro-nano photoelectric devices due to the special property; industrial production of the tungsten diselenide nanoband can be realized through an experimental method of the invention.

The invention discloses a width gradient tungsten disulfide nanobelt, a preparation method thereof and an application of the width gradient tungsten disulfide nanobelt in a self-driven photoelectric detector, a Ni film is deposited on a substrate and is annealed to form catalytic particles, and a chemical vapor deposition system is utilized to accurately control the temperature gradient between tungsten trioxide in a central temperature zone and a growth substrate in a downstream temperature zone, so that the width gradient tungsten disulfide nanobelt is obtained. And the solid sulfur source is propelled at a constant rate, the dynamic change of the sulfur / tungsten atomic ratio in the reaction environment is regulated and controlled, and a growth mode is guided to be converted from a gas-liquid-solid mechanism to a gas-solid mechanism, so that controllable preparation of the tungsten disulfide nanobelt with the width continuously and progressively decreased in the axial direction is realized. The width of the nanobelt gradually changes from 150-500 nm to 50-120 nm, the length of the nanobelt reaches 3-12 [mu] m, and the nanobelt has an armchair edge and a 3R phase stacking structure. A self-driven photoelectric detector constructed based on the nanobelt realizes high-sensitivity detection of 532 nm laser under zero bias voltage, the responsivity reaches 5.04 A / W, the detectivity reaches 3.23 * 10 < 12 > Jones, and the nanobelt shows important application value in the fields of optical signal detection, optical switches and wireless optical communication.

This invention belongs to the field of target material preparation technology, and discloses a sintering method for a yellow tungsten oxide titanium target and the yellow tungsten oxide titanium target itself. The sintering method for the yellow tungsten oxide titanium target includes the following steps: Step 1: Heating the tungsten oxide titanium target blank to 800℃ at a heating rate of 0.5-1℃ / min, with continuous oxygen flow during the process at an oxygen flow rate of 15-20L / min; Step 2: Heating from 800℃ to 1150℃-1200℃ at a heating rate of 2-3℃ / min, holding at this temperature for 1-3 hours, with continuous oxygen flow during the process at an oxygen flow rate of 40-60L / min. This invention discloses a sintering method for a yellow tungsten oxide titanium target, employing a two-stage heating approach. In the first stage of heating, a lower heating rate and lower oxygen flow rate are used to improve the density of the target material; in the second stage of heating, a higher heating rate and higher oxygen flow rate are used to avoid deactivation of tungsten trioxide, which could lead to a change in the valence of tungsten.

The invention discloses a preparation method of a high-sensitivity room-temperature flexible hydrogen sulfide gas sensor, which comprises the following steps: preparing a laser-induced graphene interdigital electrode in one step by using a carbon dioxide laser, depositing tungsten trioxide microspheres on the surface of LIG by using a film pressing technology so as to construct the hydrogen sulfide gas sensor, and forming a P-N heterojunction with the LIG, thereby obtaining the high-sensitivity room-temperature flexible hydrogen sulfide gas sensor. The response amount of the sensor is greatly improved through the heterojunction structure, the theoretical detection limit is as low as 774 ppt, and the actual detection limit is 3 ppb. The preparation method of the high-sensitivity room-temperature flexible hydrogen sulfide gas sensor provided by the invention has the advantages of high sensitivity, working at room temperature, low detection limit and long-term stability of more than seven months, and can be widely applied to the field of wearable gas monitoring.

The invention discloses a p-type tungsten disulfide nanotube bundle, a preparation method thereof and application of the p-type tungsten disulfide nanotube bundle in a photoelectric detector with adjustable light response linearity, and the method comprises the following steps: depositing an Au film on a SiO2 / Si substrate, and carrying out annealing to form a zero-dimensional Au nanoparticle catalytic layer; the method comprises the following steps: respectively placing tungsten trioxide (WO3) powder and sulfur (S) powder in different areas of a single-temperature-area tubular furnace, heating to 850-1000 DEG C in an Ar / H2 mixed gas low-pressure atmosphere, and reacting to generate a WS2 nanotube bundle with a multi-wall hollow structure; the obtained material has a cluster-shaped morphology in dense interlaced distribution, and shows stable p-type conductive characteristics. A photoelectric detector prepared based on the material has high responsivity (2.7 * 10 < 4 > A / W), high detection rate (1.6 * 10 < 13 > Jones) and quick response (15 ms) in a wave band of 375-1550 nm, and keeps stable performance in a range of 10-300 K. The method is simple in process, the growth process of the tungsten disulfide nanotube bundle can be accurately controlled, the polarity of tungsten disulfide is changed to be p-type, and large-scale preparation can be achieved.

The application discloses a nickel-based flux-cored wire and a preparation method and application thereof. The nano tungsten trioxide is introduced into the nickel-based flux-cored wire, the high-temperature strength and hot strength of the nickel-based alloy are improved, meanwhile, the hardness, friction performance and corrosion resistance of the alloy are improved, and the problems of low high-temperature corrosion strength, hot strength and mechanical performance of the nickel-based flux-cored wire are solved.

The application relates to a preparation method of Mg and W double-element co-modified ultra-high-nickel binary positive electrode material, in particular to Mg and W double-element co-modified high-nickel binary positive electrode material. 0.01 (Ni x Mn y )W z O2, wherein x the value of x is 0.9-0.95, y the value of y is 0.05-0.1, z the value of z is 0.003-0.006. The method comprises the following steps: (1) preparing a nickel and manganese metal salt aqueous solution, a mixed alkali aqueous solution and a reaction bottom solution; (2) respectively adding the metal salt aqueous solution and the mixed alkali aqueous solution into the bottom solution at a certain flow rate to perform a constant-temperature precipitation reaction in a nitrogen atmosphere; (3) after the precipitation reaction is completed, cooling to room temperature, filtering, washing and drying the precursor; (5) after the dried precursor is mixed with metered lithium salt, magnesium oxide and tungsten trioxide, high-temperature solid-phase reaction is performed in an oxygen atmosphere to obtain the Mg and W double-element co-modified ultra-high-nickel binary positive electrode material. The Mg and W double-element co-modified high-nickel binary positive electrode material prepared by the method has a specific capacity of 179.19 mAh / g after 100 cycles at a 0.5C rate, a capacity retention rate of 93.1% or above, and good cycle and rate performance.

A negative electrode material is a negative electrode material for a battery, and the material includes carbon, tungsten trioxide formed on the surface of the carbon, and silicon formed on the surface of the carbon.

The invention discloses an amorphous electrochromic film inlaid with Cs-doped tungsten trioxide quantum dots as well as a preparation method and application of the amorphous electrochromic film. The preparation method comprises the following steps: S1, adding hydrochloric acid into a sodium tungstate dihydrate aqueous solution to obtain a precipitate; washing the precipitate until the pH value of the supernate is greater than 3, and then drying the precipitate to obtain hydrated tungstic acid powder; dissolving hydrated tungstic acid powder in a hydrogen peroxide solution to obtain a peroxy tungstic acid solution, and then adding a substance containing a Cs element to obtain a Cs-peroxy tungstic acid solution; the molar ratio of Cs ions to W ions in the Cs-peroxotungstic acid solution is not less than 1: 100 and less than 5: 100; s2, heating, evaporating and concentrating the Cs-peroxy tungstic acid solution to obtain a precursor solution containing a bimetal oxygen cluster; and transferring the precursor solution containing the bimetal oxygen clusters to a substrate by adopting a film coating process, and annealing to obtain the amorphous tungsten trioxide electrochromic film inlaid with the Cs-doped tungsten trioxide quantum dots.

The invention belongs to the technical field of recycling of rare and noble metal secondary resources, and discloses a method for preparing a tungsten compound and chloroplatinate from a waste catalyst and application of the method. The method comprises the following steps: (1) firing and crushing the waste catalyst, (2) reacting the waste catalyst with acid, (3) filtering and discarding filtrate, (4) reacting the precipitate with ammonia water, filtering to obtain an ammonium tungstate solution, and retaining filter residues; (5) concentrating the ammonium tungstate solution, crystallizing, separating and drying to obtain an ammonium paratungstate finished product; and (6) reacting the filter residues retained in the step (4) with aqua regia to prepare chloroplatinate. And (7) firing the ammonium paratungstate at a high temperature to obtain tungsten trioxide. According to the method, tungsten and platinum can be effectively separated from the carrier, and the recovery rate of rare and precious metals is increased.

The invention belongs to the technical field of tungsten powder preparation, and particularly relates to medium-particle tungsten powder and a preparation method thereof.The preparation method comprises the following steps that tungsten trioxide powder with the Fisher particle size being 3-6 m, the specific surface area being 4.5-8.5 m < 2 > / g and the apparent density being 1.5-2.2 g / cm < 3 > is obtained; the method comprises the following steps: respectively reducing tungsten trioxide powder by adopting hydrogen at 650-700 DEG C, 800-850 DEG C and 1000-1050 DEG C, and sieving to obtain the medium-particle tungsten powder. According to the method, the low-apparent-density tungsten oxide powder is selected, and staged heating reduction is adopted, so that the hydrogen utilization rate can be increased, the oxygen content in tungsten oxide is reduced, and the tungsten oxide is reduced more thoroughly; by controlling the low hydrogen flow, the hydrogen return pressure and the dew point, it is ensured that tungsten oxide is thoroughly reduced, the volatilization deposition effect is remarkable, and the tungsten powder is complete in development, regular in shape and free of fine agglomerated particles which are not thoroughly reduced or high in oxygen content.

The invention discloses an easy-to-clean dust cup of a dust collector, and belongs to the technical field of cleaning electric appliances, the easy-to-clean dust cup comprises a dust cup body, the surface of the dust cup body is provided with a nano antifouling coating, and the nano antifouling coating is sprayed on the dust cup body. The nano antifouling coating is composed of nano silicon dioxide doped with nano tungsten trioxide and nano tin oxide. Compared with the prior art, the nano antifouling coating is additionally arranged inside and outside the dust cup, can form a fine protective film on the surface of the dust cup, has a self-repairing function, and can inhibit static electricity on the surface of a base material, so that stains are not easily attached to the surface of the base material, and the attached stains can be self-cleaned even if encountering water; and the cleanness of the dust cup is always kept.

The invention provides a process for preparing molybdenum and tungsten oxyhalide compounds which are useful in the deposition of molybdenum and tungsten containing films on various surfaces of microelectronic devices. In the process of the invention, a molybdenum or tungsten trioxide is heated in either a solid state medium or in a melt-phase reaction comprising a eutectic blend comprising alkaline and / or alkaline earth metal salts. The molybdenum or tungsten oxyhalides thus formed may be isolated as a vapor and crystallized to provide highly pure precursor compounds such as MoO2Cl2.

The invention belongs to the technical field of catalyst materials, and particularly relates to an oxygen-deficient tungsten oxide / triazine skeleton catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out cycloaddition reaction on 4, 4 '-biphenyl dinitrile and dicyandiamide, then carrying out thermal polymerization reaction with dicyandiamide, and carrying out high-temperature calcination to obtain a covalent triazine skeleton; the preparation method comprises the following steps: by taking sodium tungstate dihydrate as a tungsten source and citric acid and glucose as surfactants, carrying out hydrothermal reaction to obtain a tungsten trioxide precursor, then carrying out first-time calcination in an inert atmosphere, and then carrying out second-time calcination in an oxidizing atmosphere to obtain the oxygen vacancy doped tungsten trioxide nanosheet. And carrying out self-assembly on the covalent triazine skeleton and the oxygen vacancy doped tungsten trioxide nanosheet in water to prepare the oxygen vacancy tungsten oxide / triazine skeleton catalyst. According to the invention, an S-type heterojunction catalyst of WO3 with controllable oxygen vacancy concentration and biphenyl-type COF is constructed, and efficient one-step double-electron photocatalysis ORR for preparing H2O2 is realized.

This invention discloses a sunflower-shaped tungsten oxide / indium zinc sulfide heterojunction. The tungsten oxide / indium zinc sulfide heterojunction consists of tungsten trioxide located within a central sphere and indium zinc sulfide distributed as nanosheets on the sphere's surface, forming a three-dimensional sunflower shape. Using glucose as a raw material, this invention first prepares uniformly sized carbon spheres via a hydrothermal method. Then, using the synthesized carbon spheres as a template and WCl6 as a precursor, hollow WO3 spheres are obtained through in-situ hydrolysis combined with high-temperature calcination. Finally, using the synthesized hollow WO3 spheres, indium chloride, indium chloride, and thioacetamide as starting materials, the three-dimensional sunflower-shaped tungsten oxide / indium zinc sulfide heterojunction is prepared using a water bath method. The WO3 / ZnIn2S4 heterojunction material of this invention has a larger specific surface area than pure WO3, which is beneficial for exposing more active sites. The three-dimensional heterojunction constructed in this invention can effectively inhibit the free diffusion of CO2 molecules, increase the local CO2 concentration on the catalyst surface, and is more conducive to the adsorption and activation of CO2 molecules.

This invention discloses a method for preparing a hydrophobic modified photocatalytic-radiative cooling Janus composite membrane and its application, belonging to the fields of functional membrane materials and optoelectronic environmental protection technology. The Janus composite membrane uses polyethylene terephthalate (PET) film as a substrate, with a modified photocatalytic layer and a radiative cooling layer respectively disposed on both sides. The surface is hydrophobically modified with hexadecyltrimethoxysilane (HDTMS). The photocatalytic layer is composed of nitrogen-doped titanium dioxide, tourmaline powder, tungsten trioxide, and acrylic resin, and can catalytically degrade PM2.5 particles and the organic pollutants they carry. The radiative cooling layer is composed of micro / nano silica, hexagonal boron nitride, and alumina particles combined with resin, and can reduce the membrane surface temperature at night through radiative cooling, inducing the condensation of ambient water vapor. This invention adopts a Janus structure design with dual-sided discrete and collaborative operation, which combines the functions of photocatalytic degradation of organic pollutants, dust blocking of particulate matter, and day and night self-cleaning. It has the advantages of simple structure, no additional energy consumption, high functional integration and good long-term stability, and can be widely used in scenarios such as PM2.5 particulate dust blocking, photocatalytic degradation of organic pollutants and water purification.

The invention relates to a P-WO3 / SnO2 composite material derived based on phosphotungstic acid as well as a preparation method and application of the P-WO3 / SnO2 composite material. According to the material, a precursor solution containing tin chloride and phosphotungstic acid (HPW) is subjected to electrostatic spinning, and the fiber material with a hollow pipeline structure is prepared by means of a high-temperature calcination process. In the preparation process, a tungstate radical component in phosphotungstic acid is converted into tungsten trioxide (WO3), and the tungsten trioxide (WO3) and stannic oxide (SnO2) form a heterojunction interface. Meanwhile, phosphorus atoms are doped into material crystal lattices, a local electron regulation and control effect is generated, and the electron transfer capacity is enhanced. By adopting a synergistic effect of constructing a heterojunction interface and doping phosphorus element, an electric field built in the interface is effectively enhanced, and oxygen vacancies and an electronic structure of the material are regulated and controlled, so that the gas-sensitive response performance to triethylamine (TEA) gas is remarkably improved. The invention provides a new technical approach for constructing the heterojunction by using the complex oxysalt and cooperatively improving the gas sensing performance in combination with element doping.

The present invention concerns the preparation of heterogeneous catalysts by reductive photodeposition of a palladium-silver alloy as active phase on a support of titania or tungsten trioxide. The catalyst is used for storing hydrogen by means of a formate / bicarbonate cycle.

The invention discloses a transparent aerogel heat-insulation self-cleaning coating as well as a preparation method and application thereof. The transparent aerogel heat-insulation self-cleaning coating comprises the following components in parts by mass: 30-50 parts of film-forming resin; 5 to 15 parts of modified silicon dioxide aerogel; 1 to 5 parts of rare earth doped tungsten trioxide thermochromic particles; 2-8 parts of a graphene / manganese dioxide porous network; 1 to 3 parts of ionic liquid modified LDH nanosheets; the auxiliary agent comprises the following components in parts by weight: 0.5-2 parts of a dispersing agent, 0.2-0.8 part of a flatting agent, 0.1-0.5 part of a defoaming agent and 1-3 parts of a curing agent; and 30-60 parts of a solvent. The invention has the following beneficial effects: high transparency and heat insulation are cooperated: the nanoscale aerogel and the functional particles reduce light scattering, and the visible light transmittance is greater than or equal to 65%; the multilayer structure reflects infrared rays, the heat insulation efficiency is larger than or equal to 80%, energy consumption is remarkably reduced, the lasting self-cleaning capacity is achieved, the super-hydrophobic surface enables stains to be easily washed by rainwater, glass is kept clean, the mechanical performance is excellent, the LDH-fiber composite structure improves the wear resistance and adhesive force of the coating, intelligent temperature adjustment is achieved through the thermochromic characteristic, and the performance is stable in the environment of-40 DEG C to 120 DEG C.

This invention belongs to the field of PECOD sensor technology, specifically relating to a PECOD sensor based on a hydrogenated tungsten trioxide / titanium dioxide nanoarray, its fabrication method, and its applications. This invention attaches a layer of titanium dioxide nanorods to a hydrogenated tungsten trioxide nanoplate film, which not only absorbs a wider range of spectra but also promotes photogenerated electrons under illumination. ‑ -h + The above-mentioned PECOD sensor exhibits higher photocatalytic activity and is simple to prepare. Under illumination, the sensor utilizes light and current to photocatalyze organic matter, enabling the determination of COD in wastewater. This eliminates the need for toxic and corrosive reagents, saving time and reagent costs, and avoiding health risks to testing personnel and secondary environmental pollution.

The invention discloses a boron nitride composite ceramic and a preparation process thereof, and belongs to the technical field of refractory ceramics, and the boron nitride composite ceramic comprises the following components in percentage by weight: 98.4-99.6% of hexagonal boron nitride, 0.2-0.7% of tungsten trioxide, 0.05-0.3% of aluminum oxide, 0.1-0.4% of silicon dioxide and 0.05-0.2% of calcium oxide. Tungsten trioxide nano powder is introduced as a key modification component, and a composite auxiliary agent composed of aluminum oxide, silicon dioxide and calcium oxide is matched, so that the prepared boron nitride composite ceramic shows excellent bending strength and tensile strength in both normal-temperature and high-temperature environments, and the boron nitride composite ceramic can bear the structural support load at normal temperature, and has excellent mechanical properties. Reliable performance can be maintained when the material is used for coping with mechanical impact under the working condition of high temperature of 1,600 DEG C or under the working condition of high temperature of 1,600 DEG C, and the material can be widely adapted to various application scenes such as high-temperature refractory materials, extreme environment structural members and industrial kiln linings.

The invention relates to the technical field of gas sensors, in particular to a hydrogen sensor for lithium battery safety monitoring and a sensitive material preparation method, and aims at solving the problems that an existing hydrogen sensitive material is low in recovery speed and insufficient in sensitivity. Tungsten trioxide is adopted as a matrix of the sensitive material, compared with common materials such as tin oxide and zinc oxide, the sensitive material has the response characteristic of being more sensitive to hydrogen, the intrinsic sensitivity and the reaction rate of the material to hydrogen are improved through the synergistic dual sensitization effect of K + bulk phase doping and palladium nanoparticle surface catalysis, and the sensitivity of the material to hydrogen is improved. A sacrificial template is introduced into a tungsten trioxide sensitive layer prepared by aerosol deposition, and a segmented annealing process is adopted, so that a controllable porous structure is constructed while sufficient removal of the template and film continuity are ensured, and the sensitivity and response / recovery performance of the hydrogen sensor are improved; the sensor is suitable for lithium ion battery thermal runaway safety monitoring scenes with extremely harsh early warning requirements.

The invention discloses a preparation method of an acetylene carbon black / tungsten trioxide composite heterostructure film for electromagnetic wave electrodynamic regulation and control, and relates to the field of electrodynamic regulation and control of electromagnetic interference shielding effectiveness. Preparing an acetylene carbon black / tungsten trioxide composite heterostructure material through a hydrothermal method; and mixing with a polyvinylidene fluoride (PVDF) binder solution, and preparing the acetylene carbon black / tungsten trioxide composite heterostructure film through a film coating method. Cationes are embedded into / separated from tungsten trioxide, so that the tungsten trioxide can be converted among monoclinic phase, orthorhombic phase and cubic phase, the electronic structure of the tungsten trioxide is further modulated, the reflection efficiency is improved, the constructed heterostructure provides a large number of interfaces capable of inducing interface polarization, and the absorption efficiency is improved. And the two synergistically improve the modulation amplitude of the dynamic electromagnetic interference shielding effectiveness.

The invention provides a tungsten and tungsten trioxide constant-speed etching solution, which comprises the following components in percentage by mass: 1 to 10 percent of oxidant, 0.1 to 5 percent of polycarboxylic acid or ammonia carboxylic acid organic complexing agent, 0.5 to 2 percent of etching speed regulator and 1 to 10 percent of acidic pH regulator, and is used for controlling the pH value to be 1 to 4. And the balance of deionized water. According to the etching liquid, the etching rate ratio of tungsten to tungsten trioxide can be maintained at (0.8-1.2): 1, constant-speed etching approximate to 1: 1 is achieved, the problems of rate difference, uneven morphology and oxidation residues caused by a W surface oxide layer can be effectively solved, the etching effect with the smooth surface and low interface resistance is obtained, and the etching liquid is suitable for precision machining of a high-depth-ratio structure.

The application relates to a carbon fiber composite tungsten carbide photocatalytic material and a preparation method and application thereof. The preparation method comprises the following steps: dissolving milled tungsten trioxide and a polymer in an organic solvent, uniformly stirring to obtain an electrostatic spinning precursor solution; electrostatic spinning is performed on the electrostatic spinning precursor solution to prepare a tungsten trioxide nanofiber film; the tungsten trioxide nanofiber film is sequentially subjected to drying and calcination to obtain a pre-oxidized tungsten trioxide nanofiber film; the pre-oxidized tungsten trioxide nanofiber film is subjected to carbonization treatment in a reducing atmosphere, and finally a membrane-shaped carbon fiber composite tungsten carbide photocatalytic material is obtained. Compared with the prior art, the application can greatly improve the separation and transmission efficiency of photo-generated electrons and holes, and has a good application prospect in photocatalytic reduction of CO2.

The present application relates to a kind of scheelite type nickel-based catalyst for hydrogen production by self-thermal reforming of acetic acid.The present application is directed to the problem of oxidation, sintering, carbon deposition of existing catalysts in the process of self-thermal reforming of acetic acid, and a scheelite type Ni-based catalyst with BaWO4 as the main body and containing NiWO4 component is prepared by coprecipitation method, which limits the aggregation of active components and the growth of crystal grains, significantly improves the sintering resistance, carbon deposition resistance and hydrogen production rate of the catalyst. The catalyst of the present application has the following composition by weight percentage of oxides: 12.5%-18.3% nickel oxide, 69.0%-83.5% barium oxide, and 2.1%-15.3% tungsten trioxide, and the sum of the weight percentages of each component is 100%.

The application belongs to the technical field of photocatalytic materials, and particularly relates to a surface oxygen vacancy-containing tungsten trioxide and a preparation method and photocatalytic acetonitrile oxidation application thereof. The application adds a sodium tungstate solution dropwise into a hydrochloric acid solution under stirring, stirs after the dropwise addition is completed, centrifuges, washes and dries the precipitate after the reaction is completed, and obtains monoclinic tungsten trioxide; the obtained monoclinic tungsten trioxide is annealed to obtain the surface oxygen vacancy-containing tungsten trioxide. The surface oxygen vacancy-containing tungsten trioxide prepared by the application can photocatalyze the selective oxidation of acetonitrile to formic acid with high activity and high selectivity, realizes efficient degradation of acetonitrile and conversion into formic acid product which also has economic value. The application can degrade acetonitrile wastewater by means of photocatalysis, obtain formic acid product with high added value at the same time, greatly reduce the treatment cost, and the catalyst does not decrease in performance in a catalytic test of five cycles for 30 hours, and has wide application prospects in practical application.