198 results about "Chemisorption" patented technology

Systems and methods for direct air capture of carbon dioxide or other gases utilize a calcium sorbent in a manner that allows for wide scale, relatively low cost implementation. In particular, a calcium sorbent may be provided as a substantially thin coating on one or more substrates and utilized for direct air capture of carbon dioxide through chemisorption. The carbonated sorbent may be disposed of for sequestration of the carbon dioxide or regenerated with capture of carbon dioxide released from the carbonated sorbent during the regeneration process.

The invention discloses a molybdenum carbide / nitrogen-doped carbon composite material and a preparation method and application thereof, and belongs to the technical field of new energy materials and devices. The preparation method comprises the following steps: uniformly mixing ammonium molybdate, glucose and g-C3N4, and carrying out hydrothermal and high-temperature calcination treatment to obtain a composite material (Mo2C / NC) in which a nano Mo2C electrocatalyst is dispersed and distributed on a nitrogen-doped carbon matrix. The nitrogen-doped carbon in the composite material has a hierarchical porous structure, so that the electrolyte permeation and ion transmission capabilities are enhanced; the nitrogen-doped active sites not only enhance the adsorption performance of the porous carbon on polysulfide, but also improve the catalytic activity by optimizing the coordination structure of Mo2C; mo2C can chemically adsorb and efficiently catalyze reversible conversion of polysulfide, and the utilization rate of active substances is increased. When the composite material is used as a positive electrode additive of a lithium-sulfur battery, dissolution and shuttling of polysulfide can be effectively inhibited, so that the battery has high specific capacity, rate capability and excellent cycle reversibility.

Systems and methods for direct air capture of carbon dioxide or other gases utilize a calcium sorbent in a manner that allows for wide scale, relatively low cost implementation. In particular, a calcium sorbent may be provided as a substantially thin coating on one or more substrates and utilized for direct air capture of carbon dioxide through chemisorption. The carbonated sorbent may be disposed of for sequestration of the carbon dioxide or regenerated with capture of carbon dioxide released from the carbonated sorbent during the regeneration process.

The invention relates to the technical field of electrode materials, in particular to a wide-temperature-range high-iodine-loading positive electrode material, a preparation method thereof and a zinc-iodine battery. The method comprises the following steps: mixing activated carbon and iodine simple substance, and heating to sublimate and embed the iodine simple substance into the activated carbon to obtain iodine-loaded carbon black I2-coated CB; mixing gelatin and an acetic acid solution to obtain a gelatin binder solution; mixing the iodine-loaded carbon black I2-coated CB, a conductive agent and a gelatin binder solution to obtain iodine positive electrode slurry; and coating a stainless steel mesh with the iodine positive electrode slurry, and drying to obtain the wide-temperature-range high-iodine-loading positive electrode material. According to the wide-temperature-range high-iodine-load positive electrode material prepared by the method, active functional groups such as peptide bonds, carboxyl groups and amino groups of gelatin in the gelatin binder solution are utilized, the constraint capability on active iodine and the chemical adsorption effect on polyiodide are utilized, and therefore the problems of active iodine dissolution and polyiodide shuttling are effectively inhibited.

The invention discloses a preparation method and application of a self-supporting positive electrode material of a lithium-sulfur battery, and the preparation method comprises the following steps: firstly, obtaining self-supporting in-situ nitrogen-doped carbon nanofiber (PCNF) with a porous structure by utilizing electrostatic spinning and carbon heat treatment, and then soaking the PCNF in an ethanol solution of Co-ZIF-8, and calcining to obtain the cobalt / zinc oxide-nitrogen doped porous carbon modified carbon nanofiber material (Co / ZnO-NC (at) PCNF). The self-supporting positive electrode material prepared by the method does not need to use a binder, has good mechanical properties, and provides a three-dimensional conductive network and a smooth ion migration channel, and then Co / ZnO-NC has dual effects of chemical adsorption and catalytic conversion on polysulfide, so that the shuttle effect is effectively relieved, and the performance of the lithium-sulfur battery is improved.

The invention relates to an iodine-loaded positive electrode for a zinc-iodine battery and a preparation method and application of the iodine-loaded positive electrode, and belongs to the technical field of positive electrode materials for zinc-iodine batteries. The preparation method of the iodine-loaded positive electrode for the zinc-iodine battery comprises the following steps: mixing an iodine-loaded carbon material, conductive carbon black, a polysaccharide binder and deionized water in proportion, grinding into slurry, uniformly coating a current collector with the slurry, and drying to obtain the iodine-loaded positive electrode for the zinc-iodine battery. As the polysaccharide binder is rich in a large number of active functional groups (hydroxyl, carboxyl and the like), dissolution of active iodine and a shuttle effect of polyiodide can be inhibited through a chemical adsorption effect, corrosion to a zinc negative electrode caused by attenuation of battery capacity and shuttle of the polyiodide is avoided, and the polysaccharide binder has a good application prospect in the zinc-iodine battery.

The invention discloses a copper-nickel monatomic catalyst based on an MXene carrier and a preparation method and application thereof, and belongs to the technical field of catalysts.The copper-nickel monatomic catalyst comprises the MXene carrier, a copper-nickel monatomic active component is loaded on the MXene carrier, and the MXene carrier is coated with a nitrogen-doped carbon layer; wherein the content of the copper-nickel monatomic active component is 0.2-1.5 wt%, and the molar ratio of copper to nickel in the copper-nickel monatomic active component is (1: 0.3)-(1: 1.2); and the content of the nitrogen-doped carbon coating layer is 7-10 wt%. The copper-nickel monatomic catalyst does not contain toxic chromium metal, an MXene / copper-nickel monatomic / nitrogen-doped carbon layer ternary composite system is adopted, a few-layer MXene carrier provides rich surface active sites, copper-nickel monatomic active components are anchored through chemical adsorption, a dehydrogenation active center of copper atoms and a cyclization active center of nickel atoms have a synergistic effect, and the catalytic activity of the copper-nickel monatomic catalyst is improved. The oxidation resistance and the stability of the catalyst are remarkably improved through coating of the nitrogen-doped carbon layer, the technical bottlenecks of low activity, short service life and heavy pollution of a traditional catalyst are overcome, and an efficient solution is provided for green synthesis of lactone.

The invention discloses a phosphorus / fluorine co-doped monatomic iron-loaded porous carbon composite material and a preparation method and application thereof, and belongs to the technical field of new energy, and the phosphorus / fluorine co-doped monatomic iron-loaded porous carbon composite material is prepared by utilizing interaction among iron ions, fluorine-containing organic matters and organic phosphoric acid and a zeolite imidazole-8 three-dimensional network porous structure. And pyrolyzing to obtain the phosphorus / fluorine co-doped monatomic iron loaded porous carbon composite material. According to the phosphorus / fluorine co-doped monatomic iron-loaded porous carbon composite material and the preparation method and application thereof, the electronic structure of active sites of a catalyst is adjusted through phosphorus / fluorine co-doping, the catalytic activity of monatomic iron is improved, physical adsorption of porous carbon is synergistically exerted through the coordination effect between a porous carbon substrate and monatoms, and the catalytic activity of the monatomic iron is improved. Through chemical adsorption and efficient catalytic effect of monatomic iron, shuttling of polysulfide is greatly relieved, electrode conversion reaction kinetics is improved, and a high-performance lithium-sulfur battery is realized.

The invention relates to the technical field of fabric drying, and discloses uniform drying equipment for fabric processing, which comprises a feeding machine, a drying table is mounted outside the feeding machine, and a water molecule decomposition assembly is arranged in the drying table. The water molecule decomposition assembly comprises a plurality of drying rollers linearly arranged in the drying table at equal intervals and a drying bidirectional lead screw, through rotation of the drying bidirectional lead screw, the two-side flattening effect can be provided for the fabric, the deformation problems of wrinkles, distortion and the like are effectively avoided, air circulation can be driven during rotation, and more importantly, the water molecule decomposition assembly can be used for drying the fabric. Under the irradiation of an ultraviolet irradiation lamp, the surfaces of the drying roller and the drying bidirectional screw rod are subjected to a photocatalytic reaction: ultraviolet rays excite titanium dioxide to generate electron-hole pairs, holes react with water adsorbed on the surfaces to generate hydroxyl radicals with strong oxidizing property, and the hydroxyl radicals destroy hydrogen bonds or chemical adsorption between fabric fibers and water molecules, so that the fabric fibers are dried. The affinity of fibers to water is reduced, so that water is easier to separate from the surfaces of the fibers.

This invention discloses a zinc-iodine battery and an electrode carrier that can simultaneously suppress polyiodine ion shuttle and regulate zinc deposition behavior, wherein the electrode carrier is Cu. + Coordinated poly(3,4-ethylenedioxythiophene) (Cu-PEDOT), via a solvothermal method, to convert Cu... + It was prepared by coordinating with S atoms in the PEDOT framework. I₂ was loaded onto this support as the positive electrode, and Zn was electrochemically deposited as the negative electrode to assemble a battery. The atomically monodisperse Cu in this invention... + It not only enhances the chemisorption of polyiodides as a Lewis active site, but also significantly reduces I... ‑ / I 0 Conversion energy barrier, accelerates reaction kinetics and suppresses shuttle effect; at the same time, Cu + The zinc-affinity property of the substrate reduces the Zn nucleation overpotential, guides Zn to deposit uniformly along the (002) crystal plane, and suppresses dendrites. Zinc-iodine batteries based on this substrate exhibit excellent rate performance and ultra-long cycle stability, and achieve dendrite-free negative electrode growth even under high depth-of-discharge conditions. This invention solves the problem of simultaneous multi-iodide shuttle in the positive electrode and zinc dendrite growth in the negative electrode using a single substrate, significantly improving the energy density and cycle life of the battery.

The present invention relates to the technical field of electrode materials, and specifically to a wide-temperature-range high-iodine-loaded positive electrode material, a preparation method thereof, and a zinc-iodine battery. Activated carbon and iodine element are mixed and then subjected to a heat treatment to sublime the iodine element and embed it into the activated carbon, thereby obtaining iodine-loaded carbon black I2@CB; gelatin and acetic acid solution are mixed to obtain a gelatin binder solution; iodine-loaded carbon black I2@CB, a conductive agent, and the gelatin binder solution are mixed to obtain an iodine positive electrode slurry; the iodine positive electrode slurry is coated on a stainless steel mesh and dried to obtain a wide-temperature-range high-iodine-loaded positive electrode material. The wide-temperature-range high-iodine-loaded positive electrode material prepared by the present invention effectively suppresses the problems of active iodine dissolution and polyiodide shuttling by utilizing the active functional groups of gelatin in the gelatin binder solution, such as peptide bonds, carboxyl groups, and amino groups, to restrain active iodine and chemically adsorb polyiodides.

A method for inhibiting corrosion of a metal article in contact with a solution including an acid includes adding to the solution a corrosion inhibitor in an amount of 1 to 500 parts per million (ppm) based on the total number of parts by mass of the solution, thereby adsorbing the corrosion inhibitor onto the surface of the metal article via at least one interaction to form a barrier layer in the form of a composite. The at least one interaction comprises a physisorption, a chemisorption, and a retro donation. The corrosion inhibitor has a formula (I)where n is any integer from 8 to 21 inclusive and R1, R2, R3, R4, and Rs are each independently selected from the group consisting of a hydrogen atom, a hydroxyl group, an optionally substituted alkyl, an optionally substituted cycloalkyl, and an optionally substituted alkoxy.

The application provides a doped rare earth oxide / carbon nanotube functional diaphragm for a battery and a preparation method thereof. 2‑x The functional diaphragm comprises a diaphragm base and a functional layer laid on one side surface of the diaphragm base, wherein the functional layer is composed of a lanthanum-doped cerium oxide / carbon nanotube (La-CeO 2‑x / CNT) composite material. In the functional diaphragm, the hydroxylated carbon nanotubes are interwoven to form a conductive network, which can not only physically block the migration of polysulfides but also construct a continuous electron transmission channel; the La doping causes the lattice distortion of CeO2 and promotes the generation of oxygen vacancies, thereby enhancing the chemical adsorption capacity of polysulfides and accelerating the conversion reaction kinetics, and further inhibiting the shuttle effect of lithium-sulfur batteries. The lithium-sulfur battery assembled based on the La-CeO 2‑x / CNT functional diaphragm exhibits high specific capacity, excellent rate performance and long cycle stability.

The embodiment of the invention discloses a negative electrode slurry and a preparation method thereof, a negative electrode pole piece and a lithium battery, an auxiliary agent is added into the negative electrode slurry, the auxiliary agent at least contains an alkane group and a first group, the alkane group and an anchoring group capable of performing physical / chemical adsorption on the surface of an active material, and the first group is a second group capable of performing physical / chemical adsorption on the surface of the active material. The first group can form a hydrogen bond with carboxyl in the polyacrylic acid binder, so that the interface bonding force between the polyacrylic acid binder and the active material is remarkably enhanced, the hydrogen bond condensation between molecular chains of the polyacrylic acid binder can be effectively blocked by the steric hindrance effect of the polyacrylic acid binder, and the tendency of agglomeration in a material system is inhibited; therefore, a uniform and stable coating layer is formed on the surface of the active material.

This invention relates to the field of solar cell technology, and in particular to a self-assembled monolayer based on a fluorinated alcohol solvent, its preparation method, and a solar cell. The method involves adding a fluorinated alcohol as a co-solvent to a solution of the self-assembled monolayer material, which is then deposited onto the surface of a metal oxide electrode to construct a hole transport layer. The hydroxyl groups of the fluorinated alcohol can form hydrogen bonds with the phosphorus-oxygen double bonds in the phosphonic acid groups, reducing the electron density of the phosphorus atoms and thus weakening the chemisorption barrier of the self-assembled monolayer on the electrode surface, promoting the formation of a uniform and dense monolayer film. The resulting interface layer effectively suppresses interface defects and promotes hole extraction. Organic solar cells prepared using this method exhibit excellent performance in terms of energy conversion efficiency, stability, and large-area processing adaptability. This invention features a simple process, low cost, and good reproducibility, and has promising prospects for industrial application.

Hydrogenation reactions are catalyzed by driving charged particles (e.g., an electric current or particle beam) into and / or through a catalytic material so as to deliver energy for hydrogenation of one or more compounds chemisorbed by the catalytic material. The energy provided by the charged particles may be adjusted (e.g., based on a measured temperature and / or pressure associated with the reaction) to maintain a desired reaction temperature and / or prevent overheating of the reaction. In one example, hydrogen loading of the catalytic material (e.g., via electrolysis) enhances reaction rates. A wide variety of organic and inorganic reactants are contemplated for applications in food, energy production and storage (e.g., fossil-fuels, bio-fuels, petrochemicals, fuel cells), pharmaceuticals and other chemicals, as well as environmental applications (e.g., wastewater treatment, emissions reduction, carbon capture and sequestration).

Provided is a display panel, comprising a flexible substrate, a transition layer, a buffer layer, a drive layer, a functional layer, and a thin-film encapsulation layer. The transition layer covers one side of the flexible substrate; the buffer layer covers one side, away from a rigid carrier, of the transition layer; the drive layer covers one side, away from the transition layer, of the buffer layer; the functional layer covers one side, away from the buffer layer, of the drive layer; and the thin-film encapsulation layer covers the surface of the functional layer. According to the invention, a sulfydryl-containing transition layer is modified on a flexible substrate by means of sulfydryl modification to realize tight adhesion between the flexible substrate and a buffer layer in a drive layer, so that the adhesion force between the flexible substrate and the buffer layer is greatly enhanced by means of chemical adsorption.

The present disclosure relates to a method of depositing a silicon-containing material in a gap. The method includes providing a substrate including a gap, where the gap includes an inner surface, and exposing the substrate to a first plasma having a high ion energy to modify a predetermined region of the inner surface of the gap. The method further includes exposing the substrate to a second plasma having a low ion energy to passivate the modified region of the interstitial surface, thereby forming a passivated modified region on the interstitial surface, and contacting the substrate with a vapor phase silicon precursor to chemisorb the silicon precursor on the unmodified region of the interstitial surface, thereby forming a vapor phase silicon precursor on the unmodified region of the interstitial surface. Thereby depositing a material comprising silicon on the unmodified region. The present disclosure also relates to a method of controlling chemisorption of a vapor phase silicon precursor on a substrate, and a semiconductor processing assembly for performing the method according to the present disclosure.

This invention discloses an iodine cathode interface conductive polymer slurry, an iodine cathode and its preparation method, and its application in I... ‑ / I2 / I + In the application of positive-valence zinc-iodine batteries, the conductive polymer slurry at the iodine cathode interface is formed by combining an aqueous adhesive and a PEDOT:PSS dispersion. This conductive polymer slurry is uniformly coated onto the surface of the iodine cathode, and after drying, a dense conductive polymer film is formed on the iodine cathode surface. The PEDOT:PSS film of this invention can inhibit polyiodine ion shuttle and I₂ from both physical barrier and chemical adsorption perspectives. + Hydrolysis; when the iodine cathode loading is 10 mg cm⁻¹ ‑2 At that time, the discharge plateau of the zinc-iodine battery was 1.6 V (I 0 / I + ) and 1.2 V(I ‑ / I 0 Its capacity retention rate after 3500 stable cycles is over 91%, effectively improving the performance of the iodine cathode and enhancing the overall performance of the battery; it belongs to the field of battery technology.

The invention discloses a catecholamine substance multicolor visual detection kit and detection method based on synergistic catalytic reaction induction, and the method comprises the following steps: firstly, enabling catecholamine and AgNPLs to be subjected to a sufficient chemical adsorption reaction, and then adding hydrogen peroxide, so that the Ag NPLs are etched to different degrees and show different colors. According to the reaction of silver ions and urease and the cascade urease catalytic reaction, the color of pH indicator phenol red is changed, so that the colors of Ag NPLs and phenol red are compounded, the color recognition degree after the etching reaction is enhanced, and catecholamine substances are detected according to different colors. The method is simple, convenient, efficient, sensitive and high in naked eye recognition degree, and can be used for detecting diseases such as depression.

The invention relates to the field of temperature control, particularly provides a temperature control method, equipment, a medium and a system, and aims to solve the technical problem that the temperature control range is small due to the fact that an existing chemical adsorption instrument carries out temperature adjustment in a single temperature control mode. The temperature control method comprises the following steps: acquiring a set temperature, a sample temperature and a preset temperature threshold; determining a temperature control mode according to the set temperature, the sample temperature and a preset temperature threshold; and controlling the temperature of the sample in the chemical adsorption instrument according to the temperature control mode.

The invention relates to a method for adsorbing sulfydryl or thiophenol molecules on the surface of a platinum catalyst to enhance electro-catalysis formic acid oxidation and methanol oxidation, in particular to a method for enhancing formic acid and methanol electro-oxidation reaction by modifying a platinum electrode with cysteamine molecules to form a platinum-cysteamine heterogeneous interface, and belongs to the technical field of catalytic energy. According to the invention, mercaptan / thiophenol molecules represented by cysteamine (CYS) are modified on the surfaces of platinum nanoparticles through chemical adsorption, so that a molecule-metal composite catalytic system with an optimized electronic structure is constructed. X-ray photoelectron spectroscopy, in-situ Raman spectroscopy and theoretical calculation prove that the catalytic performance of surface adsorption molecules is remarkably improved through a dual-action mechanism, on one hand, the electronic structure of platinum is regulated and controlled to reduce a reaction energy barrier, on the other hand, interface charge transfer kinetics is promoted, and the oxidation process of formic acid through a formate path is effectively optimized. The technical scheme has universality to various mercaptan / thiophenol molecular systems, and the strategy can also be used for improving the performance of methanol oxidation reaction. The invention provides a novel catalytic material system for developing efficient direct formic acid and methanol fuel cells, and has important application value in the field of clean energy conversion devices.

This invention relates to the field of printed circuit board manufacturing technology and discloses a fine etching process for PCB circuit patterns. The process includes injecting a fine etching composition comprising deionized water, hydrochloric acid, copper chloride dihydrate, anhydrous magnesium chloride, p-toluenesulfonic acid monohydrate, polyethylene glycol, and 2-mercaptobenzimidazole into a circulating working tank of an etching machine; setting the temperature of the working solution in the circulating working tank; sending the substrate to be etched, after dry film development, into a spray section; activating the spray array and setting the spray pressure to etch the substrate; and rapidly rinsing the etched substrate in a deionized water washing section, followed by strong air drying to obtain the circuit pattern. This invention reduces surface tension through specific components to promote solution penetration into the microstructure, utilizes an organic corrosion inhibitor to form a stable protective layer on the trench sidewalls, and combines the vertical impact of the nozzle jet on the bottom, leveraging the difference between mechanical force and chemical adsorption force to achieve anisotropic etching, thus suppressing lateral corrosion of fine circuits.

The present invention belongs to the technical field of semiconductor materials, and discloses a modified silicon nitride film and a preparation method and application thereof. The preparation method of the modified silicon nitride film provided by the present invention comprises sequentially introducing a silicon precursor and metal-doped carbon dots into the reaction chamber by thermal atomic layer deposition for chemical adsorption, and then reacting with a nitrogen source plasma gas to finally obtain a modified silicon nitride film. The preparation method provided by the present invention effectively solves the problem of low density of silicon nitride films prepared by existing preparation processes. The obtained modified silicon nitride film has both a lower dielectric constant and a higher density, and can be well applied to the semiconductor industry and / or the field of microelectronics, and has good application prospects.

1. Name of the Design Product: Chemical Adsorbent (Bird's Nest Shape). 2. Use of the Design Product: The design product belongs to a desulfurization adsorbent used in the purification of natural gas in oil and gas fields and is used to purify gases. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph Most Indicating the Design Key Points: Perspective view.

There is provided a technique that includes: (a) forming a third film on a first film and a second film formed on a surface of the substrate by supplying a precursor, a first reactant, and a second reactant to the substrate under a condition in which thermal decomposition of the precursor does not occur and physical adsorption of the precursor occurs more predominantly than chemical adsorption of the precursor when the precursor is present alone; and (b) removing the first film while retaining the second film and the third film by exposing the surface of the substrate where the third film is formed on the first film and the second film to an etching agent that reacts with the first film.

The invention discloses an alkaline earth metal stable oxygen-like superatomic cluster material and a preparation method thereof.The material is prepared from aluminum powder, alkaline earth metal hydride and anhydrous metal halide serving as a structure-directing agent, and the preparation method comprises the steps that firstly, under the inert atmosphere, the raw materials are subjected to high-energy ball milling to prepare a composite precursor; then temperature programming heat treatment is carried out, hydrogen generated by hydride in-situ decomposition is used for reducing an interface and inducing lattice defects, and meanwhile, interface migration and chemical adsorption effects of halide ions are used for pinning newly generated cluster units; and finally, carrying out non-equilibrium densification through spark plasma sintering. According to the method, the defect that a thermodynamically stable alloy phase is easily formed in a traditional smelting method is overcome, the oxygen-like cluster structure with the 38 electron open shell layer characteristic is successfully stabilized in a macroscopic solid state through a synergistic mechanism of gas phase pore forming and interface pinning, and the material is endowed with excellent catalytic activity and semimetal conduction characteristic.

The invention belongs to the technical field of semiconductor materials, and particularly relates to a silicon nitride film and a preparation method and application thereof. The preparation method of the silicon nitride film comprises the following steps: sequentially introducing an aminosilane precursor and a complex of metal inorganic salt and amino acid into a reaction chamber for chemical adsorption reaction, and then introducing nitrogen source plasma gas for reaction to obtain the carbon-metal co-doped silicon nitride film. The preparation method is characterized in that a complex of metal inorganic salt and amino acid is introduced in the forming process of the silicon nitride thin film to regulate and control the content of carbon and metal elements in the obtained thin film and control the growth process of the thin film, so that the carbon-metal co-doped silicon nitride thin film with lower density and thinner thickness is obtained; the silicon nitride thin film is high in quality and good in adhesive force with the substrate, can be well applied to the fields of semiconductor materials and microelectronics, and is good in application prospect.

The present application relates to the field of environment-friendly metal surface pretreatment technology, and discloses a metal chelating film forming agent, a preparation method and application thereof, wherein low-molecular polysilazane resin and zirconium triethanolamine compound are used as film forming agents, epoxy modified silicone resin is used as an auxiliary film forming agent, aspartic acid diacetic acid tetrasodium is used as a chelating dispersant, tetramethyl decyne glycol is used as a wetting agent, n-butanol is used as a leveling agent, and interface stable graphene with Schiff base functional groups, quinoline functional groups and quaternary ammonium salt functional groups on the surface is used as a corrosion-resistant filler to prepare the metal chelating film forming agent, wherein the present application is environmentally friendly, and after the leak detection process of the compressor muffler, no alkaline cleaning agent is needed for cleaning and treatment, and the subsequent spraying can be directly performed, on the other hand, the metal substrate surface can be combined by physical adsorption and chemical adsorption to produce strong bonding force, and a dense protective film is formed on the metal substrate surface, thereby achieving the beneficial technical effect of significantly improving the corrosion resistance.