179results about How to "Improve bonding ability" patented technology

An integrated circuit structure includes a semiconductor substrate including a front side and a backside. A through-silicon via (TSV) penetrates the semiconductor substrate, and has a back end extending to the backside of the semiconductor substrate. A redistribution line (RDL) is over the backside of the semiconductor substrate and connected to the back end of the TSV. The integrated circuit structure further includes a passivation layer over the RDL; an opening in the passivation layer, wherein a portion of the RDL is exposed through the opening; and a nickel layer in the opening and contacting the RDL.

The invention provides anti-oxidation copper-based bonding wires, which comprise copper serving as a base material, wherein trace metal elements such as Pt, Ce and Pd are added into the copper to form a master alloy base material; the master alloy base material is made into thin wires, and a gold layer is plated on the surfaces of the thin wires to form the bonding wires; and the purities of the copper and gold are more than 99.99 percent. The invention also provides a preparation process for the bonding wires. The preparation process comprises the steps of master alloy melting, drawing, cleaning, gold plating, annealing, winding, packaging and the like. The copper-based bonding wires have the advantages of copper bonding wires and gold bonding wires, have the characteristics of high oxidation resistance and electrical conductivity and low arc stability, have higher hardness compared with a single copper material, and have the advantages of low price and the like; moreover, the copper-based bonding wires are simple and convenient to package, can be stored for a long time at normal temperature, and can meet the requirement on electronic packaging high-end development.

The invention discloses phenyl vinyl silicon resin for adhering a base as well as a preparation method and an application thereof. The phenyl vinyl silicon resin consists of solid silicon resin containing Si-H, methyl, phenyl and vinyl as well as an organic compound containing a tackifying radical and vinyl; under the effect of a hydrosilyation catalyst, the phenyl vinyl silicon resin is generated through a hydrosilyation reaction, wherein the tackifying radical is an organic radical capable of enhancing the adhesive capacity of the base. When the phenyl vinyl silicon resin provided by the invention is used as a reinforcing tackifying material in an LED, and can provide high hardness, high tenacity, high refractive index and higher lighting effect of LED packaging glue water; moreover, the phenyl vinyl silicon resin has good adhesive capacity for various bases, the material has excellent reliability in the using process, and the phenyl vinyl silicon resin has extremely high practicability.

A disclosed preparation method for a beta-cyclodextrin chiral stationary phase comprises: taking SiO2 microballoons as a raw material, and bonding beta-cyclodextrin (beta-CD) to the surface of SiO2 microballoons by employing 3-aminopropyltriethoxysilane (KH550), trimethylchlorosilane and 4,4'-methylenediphenyl diisocyanate (MDI) to obtain the beta-cyclodextrin chiral stationary phase. The method has continuity, simple operation and short synthetic period, and the synthetic product is convenient to be subjected to derivatization; no metal ion-containing catalysts such as NaOH, NaN3, CuI(PPh3) and the like are introduced according to the method, so that the chiral stationary phase is prevented from pollution, and the method relatively accords with the separation requirement of high-purity liquid chromatogram. The method is applicable to separation of benzene ring-containing chiral medicament intermediates and pyrethroid pesticide compounds.

The invention discloses a method for preparing a high-thermal conductivity polyimide / magnesium oxide composite film. The method comprises following steps of (1) dissolving monomer diamine into an organic solvent, stirring to dissolve so as to form a mixed solution; (2) adding monomer dianhydride of the same molar ratio into the solution of step (1), adding a nanometer heat conduction material, mixing uniformly; (3) synthesizing the mixed system of step (2) into nanometer heat conduction material doped polyamide acid resin under conditions that the temperature is 45-55DEG C and reaction time is 7-12 hours; (4) tape casting the polyamide acid resin of step (3) on a stainless steel band, drying to form a cast film, carrying out imidization on the cast film at 350-460DEG C, so as to prepare the polyimide / magnesium oxide composite film. The magnesium oxide inorganic filler is treated on the surface, so as to form effective bonding at the interface, so that thermal contact resistance is reduced, the heat conducting property of the magnesium oxide inorganic filler is improved, and the heat conducting property of the composite material is improved.

The invention relates to the technical field of a lithium ion battery material, and particularly discloses a lithium ion battery positive electrode active material and a preparation method thereof. The lithium ion battery positive electrode active material is characterized in that the average constituent is Li<1+a>Ni<x>Co<1-x-y>Mn<y>MoO2, wherein 0.01<=a<=0.1, 0.6<=x<=0.9, 0.1<=y<=0.2, 0.1<=(x+y)<=0.2, and 0.005<=b<=0.03; and in particle of the positive active material, the concentration of Mo element is continuously and gradiently changed from inside to surface of the particle, and the Mo concentration is gradiently raised from a body phase to surface of the particle. By doping the Mo element into a ternary material in gradient distribution mode, the Mo element in the Li<1+a>Ni<x>Co<1-x-y>Mn<y>MoO2 particle is promoted to be gradiently raised from the body phase to the surface, and the bonding effect between a transition metal element and an oxygen atom is enhanced.

The invention provides a preparation method of a hydrophilic and antistatic polyester fiber. The preparation method comprises the steps that a carbonic acid solution is adopted as a solvent of chitosan gel, and chitosan is applied to the surface of a polyester fiber; a stable graphene oxide-chitosan coating is formed on the surface of the polyester fiber through interaction between graphene oxide and the chitosan; after washing and drying are conducted, the hydrophilic and antistatic polyester fiber is obtained. According to the preparation method, carbonic acid is adopted as the solvent of the chitosan, a chitosan film can be directly formed to be deposited on the surface of the polyester fiber through heating, and a solvent removing step is not needed; the polyester fiber with the chitosan film and the graphene oxide have a high bonding effect; the prepared chitosan-graphene oxide-polyester fiber has the very good hydrophily and antistatic property. The green chemical preparation method is simple in preparation process, environmentally friendly and low in equipment requirement and has a wide application prospect.

The invention relates to elastic material for preparing elastic and flexible toys, and particularly relates to elastic flexible glue. The elastic flexible glue comprises the following components by weight percentage: simethicone, super fine calcium carbonate, boric acid, TPR (thermal plastic rubber), zinc stearate, silicon resin, bentonite, barium carbonate, linseed oil and erucyl amide. The elastic flexible glue provided by the invention has good elasticity and proper bulking intensity; the surface of the elastic flexible glue is smooth, good in hand feel, adhesive, and tough, and has good aging resistance, high stability and long service life that is from 13 to 15 months; and the elastic and flexible toys made of the elastic flexible glue have high quality, and are playable and durable.

The invention relates to a surface sizing agent, which contains a polymer of cationic starch grafted monomers and succinylated chitosan sodium, wherein the cationic starch grafted monomers comprise three monomers such as a hard monomer, a soft monomer and a cross-linking monomer, the hard monomer is a mixture comprising one or a plurality of materials selected from styrene, methyl styrene, methyl methacrylate and methyl acrylate, the soft monomer is a mixture comprising one or a plurality of materials selected from n-butyl acrylate, tert-butyl acrylate and octadecyl acrylate, and the cross-linking monomer is a mixture comprising one or two materials selected from 2-hydroxyethyl acrylate and methylol acrylamide. The present invention further provides a preparation method for the surface sizing agent, a sizing liquid containing the surface sizing agent, and sizing paper prepared by applying the sizing liquid containing the surface sizing agent to carry out sizing. The surface sizing agent has characteristics of low price, green environmental protection and good use effect.

The invention relates to the field of waterproof engineering construction methods, in particular to a non-cured rubber asphalt paint and self-adhesion coiled material composite construction method. The non-cured rubber asphalt paint and self-adhesion coiled material composite construction method comprises the following steps of S1, waterproof paint treatment; S2, base layer treatment; S3, joint reinforcing treatment; S4, self-adhesion coiled material pre-trial paving; S5, first bonding layer construction; S6, self-adhesion coiled material paving and lap joint; and S7, close-up seal. The methodhas the beneficial effects that a composite waterproof layer made through the construction method has the good anti-aging property, and even if the composite waterproof layer is used for a long time,the composite waterproof layer can still keep good structural strength and bonding property.

The invention discloses a nuclear-grade ion-exchange resin-based composite material and a preparation method thereof. The composite material is prepared by the steps: firstly reducing a platinum precursor into polymer-packaged nano platinum particles by using a reducing agent in existence of a polymer packaging agent; adding a silicon source and an aluminum source and then carrying out hydrothermal reaction employing a polymer as a structure-directing agent to obtain a platinum-silicon aluminum molecular sieve core-shell structure compound, wherein the inner core is nano platinum particles and the shell layer is a silicon-aluminum molecular sieve; and finally assembling the platinum-silicon aluminum molecular sieve core-shell structure compound to nuclear-grade ion-exchange resin to obtain the nuclear-grade ion-exchange resin-based composite material. The composite material has relatively high ion exchange property, relatively high catalytic removal efficiency, relatively high environment durability and extremely high recycling property, and has a good application prospect in the field of nuclear industry circulating water treatment.

The invention belongs to the field of resin preparation technologies, and particularly relates to a preparation method for resin with the free-spraying special texture effect. According to the preparation method, an ATRP initiator is bonded on the surface of a metal pigment, monomers are precisely polymerized on the surface of the pigment one by one through controllable polymerization to form a uniform macromolecular coating, and therefore the problem that multiple flaky particles of a special-effect pigment are bonded in a crosslinking mode through traditional free radical polymerization and disorder polymerization is fundamentally solved. In addition, due to the fact that in the ATRP controllable polymerization process, the initiator is always located at the front end of a macromolecular chain and the activity of the initiator is continuously kept, the macromolecular coating can be regulated through design and selection of the monomers to enable the macromolecular coating to have the good compatibility with a resin substrate, and the dispersibility of the special-effect pigment in the resin substrate is effectively improved. The special-effect pigment coated in this way can be matched with multiple kinds of engineering plastic resin such as ABS, PC, PBT, PMMA and nylon to prepare the corresponding high-quality resin with the free-spraying special texture effect.

The invention discloses a novel metal diffusion bonding technology. Main steps comprises steps that: two parts on which a bonding metal layer is deposited are packaged in a vacuum sealing soft bag, the vacuum sealing soft bag is then put in a container filled with liquid, the container is connected with a pressure device, pressure generated by the pressure device is exerted on a part needing bonding through the liquid in the container and the vacuum sealing soft bag, temperature rising is further realized simultaneously, so metal diffusion bonding is realized under effects of the temperature and the pressure. The novel metal diffusion bonding technology can guarantee uniform bonding pressure in each direction and does not easily cause rupture damage to a crimping material even under high pressure intensity, so a bonding effect is improved. The exerted pressure is great, so reliable bonding can further be realized even under lower temperature, lowest work temperature can be 80 DEG C, moreover, the novel metal diffusion bonding technology can reduce requirements for technology clamps and physical dimensions of bonding materials.

The invention discloses a moisturizing and repairing composition for stimulating cellular water channel protein production. The active ingredients of the moisturizing and repairing composition are composed of hydrolyzed viola tricolor extract, sodium hyaluronate, bio-saccharide gum-1, ceramide 3 and tripeptide-1 copper. The invention further provides application of the moisturizing and repairing composition in preparation of cosmetics with moisturizing and repairing effects and cosmetics comprising the moisturizing and repairing composition. According to synergistic effects of the various active ingredients, the moisturizing and repairing composition effectively stimulates cellular water channel protein production and achieves excellent effects of moisturizing and repairing skin barrier.

The invention discloses a fluoroalkyl modified acrylate-containing low-surface energy, drag reduction and fouling prevention coating. The coating comprises a component A and a component B, wherein the component A comprises, by mass, 20-50% of fluoroalkyl modified acrylic resin, 2-15% of rosin, 15-25% of a composite antifouling agent, 5-15% of a pigment and filler, 1-5% of an assistant and 10-20% of an organic solvent; the component B is an N75 curing agent produced in the Bayer Company in Germany, and a mass ratio of the component A to the component B is 5:1-10:1; the structural formula of the fluoroalkyl modified acrylic resin is shown in the description; and in the structural formula, R1 is H or CH3, R2 represents a C1-4 alkyl group, and x, m, n and p are integers in a range of 1-9 respectively. The invention also discloses a preparation method of the coating. A film formed by using the coating has good bonding ability with a substrate, keeps lasting brightness, and also has the characteristics of excellent static / dynamic fouling prevention, low surface energy and drag reduction.

The invention belongs to the technical field of anticorrosive coatings, and discloses a permeation consolidation type solvent-free epoxy anticorrosive coating, and a preparation method and an application thereof. The anticorrosive coating consists of a component A and a component B. The component A consists of the following components in parts by weight: 18-89 parts of epoxy resin, 5-50 parts of enhanced type reactive solvents, 5-60 parts of permeation type reactive solvents, 0-5 parts of interfacial modifiers and 0-3 parts of permeation enhancers. The component B consists of the following components in parts by weight: 5-95 parts of functional curing agents, 0-30 parts of curing regulators, 0-50 parts of double-function regulators, 0-40 parts of curing accelerators and 0-5 parts of condensation catalysts. The coating is low in viscosity and excellent in permeability, and has an excellent mechanical property after being cured. In addition, the permeation consolidation type solvent-free epoxy anticorrosive coating disclosed by the present invention has good wettability and viscocity with concrete, and strength of the concrete can be improved, water on the surface of the concrete can be removed, and surface corrosion factors of the concrete are reduced.

An object of the present invention is to establish, for an LSI having a stacked interconnection structure of Cu interconnect / Low-k material, a narrow pitch wire bonding technique enabling a reduction in damage to a bonding pad and application similar to the conventional LSI of an aluminum interconnection. In a semiconductor device having a multilayer interconnection made of a Cu interconnect / Low-k dielectric material, the above-described object can be attained by a bonding pad structure in which all the wiring layers up to the uppermost cap interconnect are formed of a Cu wiring layer and a bonding pad portion formed of a Cu layer is equipped with a refractory intermediate metal layer such as Ti (titanium) filmor (tungsten) film on the Cu layer and an aluminum alloy layer on the intermediate metal layer.

The invention relates to the technical field of solar back plates, and in particular relates to a coating liquid for a fluorocarbon coating layer and a solar back plate using the coating layer. In order to improve encapsulation strength of a fluorocarbon coating layer of a current solar back plate, the invention provides the coating liquid for the fluorocarbon coating layer and the solar back plate using the coating layer. The coating liquid for the fluorocarbon coating layer comprises the following components, in percentages by weight: 40%-70% of fluorocarbon resin, 20%-40% of titanium dioxide, 1%-5% of extinction powder, 0.2%-0.8% of polyacrylate, 1%-5% of adhesion promoting resin, and 3%-10% of isocyanate, wherein the solid content is controlled at 40%-60%. The coating liquid provided by the invention forms the highly-dense fluorocarbon coating layer on the surface of a PET substrate, and the fluorocarbon coating layer can exhibit excellent encapsulation strength during lamination with EVA and remains to keep the high encapsulation strength after undergoing a damp heat aging test.

The invention discloses a self-repairing polymer. The self-repairing polymer is characterized by comprising a polymerizable resin carrier and a capsule containing a vinyl monomer, wherein the polymerizable resin carrier is prepared from a monomer, an initiator and a catalyst; the weight percents of the monomer, the initiator, the catalyst and the capsule containing the vinyl monomer are respectively 79-90%, 0.9-1.2%, 3-7% and 5-20%. The self-repairing polymer has the positive effects that the self-repairing polymer has high repairing efficiency; chemical reaction happens between the carrier and repairing agents of a repairing system disclosed by the invention, thus improving the bonding capacity of a modified material; the self-repairing polymer completes self-repairing at room temperature; heating is not needed in the self-repairing process, and crack repairing is carried out at room temperature; the self-repairing polymer is environment-friendly and is low in cost; the repairing agents are distributed uniformly.

The invention discloses a preparation method and application of red fluorescent copper nano-clusters. The preparation method comprises the following steps: preparing a red fluorescent copper nano-cluster aqueous solution by taking 2-mercapto-5-benzimidazole sulfonic acid dihydrate sodium salt as a protective agent and a reducing agent and taking a copper nitrate solution as a substrate through anultrasonic method; in the synthesis process, the addition of common reducing agents such as hydrazine hydrate and ascorbic acid is avoided, the operation is simplified, and the method is green and environment-friendly. The fluorescence quantum yield of the prepared red fluorescence copper nano-clusters is 0.31%, and the red fluorescent copper nano-clusters have the advantages of large Stocks displacement, good water solubility, strong photobleaching resistance and the like, has high-sensitivity and high-selectivity response to glutathione, and can be applied to detection of fluorescence enhanced glutathione.

The invention discloses a transfer method based on a wafer level GaN device original substrate, and belongs to the technical field of semiconductor technology. The surface of an original film is covered with a removable thicker protection supporting layer, and after the original substrate is removed, two wafers are bonded directly. The method comprises the following steps: (1) enabling the surfaceof a wafer level GaN device after front face technology to be covered with the protection supporting layer; (2) removing the original substrate; (3) cleaning the back face of a wafer and the surfaceof an Si substrate to be transferred; (4) carrying out N2 gas plasma processing on the back face of the wafer; (5) carrying out O2 gas plasma processing on the surface of the Si wafer; (6) putting thetwo parts into an ammonia water solution for prebonding; (7) applying external force to a laminated sample in an N2 environment for bonding; (8) carrying out low temperature annealing processing on the bonded wafer; (9) exposing the annealed wafer, and then putting the exposed wafer into a developing solution to resolve and remove a surface protective layer. According to the method, the substratetransfer of the GaN device can be realized.

The invention belongs to the technical field of coatings, and particularly relates to an epoxy resin modified polyurethane waterproof coating which is prepared from the following components in parts by weight: 30-50 parts of epoxy modified polyether polyol, 10-20 parts of a polyisocyanate monomer, 10-20 parts of a plasticizer, 30-50 parts of a solid filler, 1-5 parts of a latent curing agent, 0.3-3 parts of a catalyst, 0.1-2 parts of a defoaming agent and 1-5 parts of an anti-sagging agent. The epoxy resin modified polyurethane waterproof coating has the following beneficial effects: (1) E-51epoxy resin is used for graft modification of the polyether polyol mixture, so the viscosity of the coating system is improved; (2) the modified solid filler and polyether have a relatively strong bonding effect, so that the sedimentation resistance and sagging resistance are further improved; and (3) the coating system prepared by the invention greatly improves the process performance and the mechanical property by modifying various components.

The invention discloses a synthesis process of viscosified phenyl silicone oil for high-power light-emitting diode (LED) packaging. The synthesis process comprises the following steps of: synthesizing an epoxy end-capping reagent; dehydrating a methyl cyclosiloxane monomer, a methyl vinyl cyclosiloxane monomer and methyl phenyl cyclosiloxane monomer; adding the epoxy end-capping reagent and a catalyst and performing polymerization reaction; and after the reaction, removing the catalyst and performing vacuum devolatilization; and cooling and discharging. Compared with the traditional silicone oil for LED packaging, the viscosified phenyl silicone oil for high-power LED packaging synthesized by the synthesis process has high refractive index and light transmittance, excellent viscosity and excellent room temperature curing property, and can effectively improve the light output and the high temperature resistance of silica gel for LED packaging.

Provided is a method for cleaning bonding pads. The method comprises: providing a substrate on which an interconnection line layer is formed, wherein bonding pads are formed on the surface of the interconnection line layer and passivation layers are formed on the surfaces of the bonding pads; removing the passivation layers on the surfaces of the bonding pads by etching until the surfaces of the bonding pads are exposed and halogen family ions are left on the surfaces of the bonding pads; and performing acidic cleaning on the bonding pads in order to remove the halogen family ions left on the surfaces of the bonding pads, wherein cleaning liquid used by the acidic cleaning is chromium phosphate solution. The method cleans the bonding pads with acidic cleanout liquid, effectively removes the halogen family ions left on the surfaces of the bonding pads, prevents the bonding pads from corroding, and improves the tensile strength and bonding intensity of the bonding pads so as to improve the conductivity and the reliability of a semiconductor device.

The invention discloses a preparation method of a polydopamine / polyacrylic acid supported nano-silver composite material. The method comprises the steps that a polydopamine microsphere is used a core, a seed emulsion polymerization method is adopted for synthesizing a polydopamine / polyacrylic acid composite microsphere, a silver-ammonia solution is reduced in situ through the reducibility of polydopamine, and therefore the polydopamine / polyacrylic acid supported nano-silver composite material is prepared. According to the preparation method, operation is easy, reaction conditions are mild, a large number of carboxy groups in polyacrylic acid of a shell three-dimensional network structure have a strong bonding effect on silver nanoparticles and a confined effect on a macromolecule network chain, the silver nanoparticles can be stabilized, the particle diameter of the nanoparticles can be controlled, the silver nanoparticles in the prepared composite material are good in dispersity and uniform in size, and meanwhile the obtained composite materials also has pH sensitivity.

The invention provides a wafer cutting method. The method comprises the following steps of: firstly, downwards grooving along the surface of a device wafer by adopting a first laser cutting process to form a first groove with larger transverse width, then etching the surface of the device wafer, removing particulate matters which are generated and attached to the surface of the device wafer when the first groove is formed, then flattening the surface of the device wafer, ensuring the cleanliness and flatness of the surface of the device wafer, then adopting a second laser cutting process for grooving downwards along the bottom face of the first groove, and forming a second groove which is communicated with the first groove and is small in transverse width, wherein at the moment, the particles generated by the second laser cutting process are only accumulated in the first groove and the second groove, the cleanliness and flatness of the surface of the device wafer are not affected, the cleanliness and flatness of the surface of a single chip generated after cutting are guaranteed, and the bonding effect of a hybrid bonding process can be improved.

The invention provides a preparation method and application of a magnetic nanometer catalyst loading nanogold. The preparation method comprises the steps of firstly fully dispersing magnetic nanometerparticles into ethyl alcohol, adding ammonium hydroxide and tetraethyl orthosilicate, stirring, and separating to obtain silicon-coated magnetic nanoparticles; then fully dispersing the silicon-coated magnetic nanoparticles into ethyl alcohol, adding a silane coupling agent with sulfydryl, stirring at room temperature, and separating to obtain sulfhydrylated magnetic nanoparticles; finally fullydispersing the sulfhydrylated magnetic nanoparticles into deionized water, adding a nanogold solution, stirring at the room temperature, and separating to obtain the magnetic nanometer catalyst loading the nanogold. During the preparation process, no complex organic reaction is involved, and the cheap silane coupling agent easy to get is used as a loading medium, so that the preparation method issimple and low-cost; the prepared magnetic nanometer catalyst has higher catalytic activity in p-nitrophenol reduction reaction, and can be recycled for multiple times.

The invention provides a preparation method of a super-molecular nano fiber for magnetic resonance imaging radiography. A construction unit takes diPMCD as a main body; manganese porphyrin is taken as a secondary body; and a super-molecular assembly body is constructed by mutual inclusion and complexation effects of the main body and the secondary body. The preparation method comprises the following steps of: dissolving 6-isothiocyano-6-deoxy-fully methylated beta-cyclodextrin and ethanediamine into acetonitrile under the protection of argon; agitating at a room temperature for one night; carrying out spinning evaporation to remove a solvent; purifying a residual solid by using column chromatography to obtain a white diPMCD solid; dissolving the diPMCD and the manganese porphyrin into water and mixing uniformly; and adding sodium ascorbate to obtain a target object. The preparation method has the advantage of being is simple and the components have relatively strong bonding capability; the super-molecular nano fiber can be effectively imaged in a body of a mouse and has a wide application prospect in the field of a magnetic resonance imaging contrast agent; and the invention provides a novel method for preparing the contrast agent.

The application provides a method for manufacturing a quaternary-system transparent-substrate-included light-emitting diode and a quaternary-system transparent-substrate-included light-emitting diode.On the basis of a transparent substrate bonding technique, a quaternary-system GaAs substrate light-emitting diode epitaxial wafer is transferred to the transparent substrate to replace a substrate made of a light-absorptive material, so that the luminous efficiency is improved. Besides, a GaP layer is roughened and a gradient-refractive-index composite film layer is formed on the GaP layer, so that the light transmittance is enhanced because of the gradient-refractive-index composite film layer and thus the light extraction rate of light-emitting diode is increased. Furthermore, because an SOG bonding layer is arranged at the outermost side of the gradient-refractive-index composite film layer, compared with the prior art with the monox bonding layer, the light-emitting diode has the improved bonding capability; the bonding becomes firm; and the bonding yield is increased.

The invention discloses an integrated automobile tail gas purification three-way catalyst and a preparation method thereof. The catalyst includes a first carrier cordierite honeycomb ceramic, a second carrier aluminum source and an active component. The second carrier aluminum source and the active component form a coating of the catalyst, wherein the active component is a composite metal oxide. The preparation method particularly includes following steps: coating the first carrier cordierite honeycomb ceramic, which is corroded by an acid, with the aluminum source through a microwave heating technology; coating the carriers with a salt solution of the active component through an impregnation method; and performing a drying and roasting process to obtain the catalyst. The catalyst is free of usage of precious metals such as platinum, palladium, rhodium and the like, is low in cost, is stable and uniform in coating distribution, is low in initiation temperature, is wide in activity temperature window, is good in a high-temperature-resistant thermal stability and has a good application prospect.