207results about "Molybdenum sulfides" patented technology

The invention discloses an application of a molybdenum disulfide-based piezoelectric catalytic material in a seawater uranium extraction material, and relates to the technical field of seawater uranium extraction, thiourea and sodium molybdate are used as precursors, and a MoS2 nanoflower with a specific 1T / 2H composite crystal structure is constructed through a hydrothermal synthesis technology. The method is placed in a uranyl nitrate solution, ultrasonic treatment is combined, efficient extraction of uranium can be achieved, and the method has potential application to extraction of uranium from seawater. The method is simple in process and environment-friendly, almost does not generate harmful waste in the synthesis process, does not need complex operation, and has good amplification preparation potential.

The invention relates to a manganese-directionally-doped CoS2 / MoS2 heterostructure composite material and preparation and application thereof.In the manganese-directionally-doped CoS2 / MoS2 heterostructure composite material, manganese ions are directionally doped on cobalt sites and are not uniformly distributed in a whole heterojunction system, so that the electronic conductivity of CoS2 and the utilization rate of active sites are improved; and meanwhile, the damage to the MoS2 lattice structure is avoided, so that the interface charge transmission capability and the cycling stability of the heterojunction are enhanced. In addition, the electrode material does not need to use a binder or a conductive agent, can be directly applied to various electrochemical energy storage devices such as supercapacitors and the like, and has a good application prospect.

The invention provides a molybdenum disulfide / perovskite heterojunction composite material and a preparation method and application thereof. The composite material is formed by growing mixed powder of lead halide and cesium halide on the surface of a molybdenum disulfide material. Comprising the following steps: (a) fully mixing lead halide and cesium halide powder according to a certain proportion, and placing the mixture in a crucible; (b) putting the crucible in which the mixed powder is placed into a tubular furnace, putting a molybdenum disulfide substrate above the crucible by 10cm, and pumping out air in the tubular furnace; (c) setting a tube furnace program, and heating and preserving heat at a certain speed and for a certain time; after the procedure is finished, the temperature of the tubular furnace is reduced to the room temperature, and the heterojunction composite material is obtained. The size of the composite material can reach a wafer level (2 inches), and the composite material has excellent photoelectric properties and has wide application prospects in photoelectric detectors with photoconductive structures.

The application discloses a transfer method of a two-dimensional material film, which comprises the following steps: coating photoresist on the surface of a two-dimensional material film directly grown on a growth substrate and solidifying the photoresist to form a transfer medium layer; separating the growth substrate from the transfer medium layer / two-dimensional material film; after the transfer medium layer / two-dimensional material film is attached to a target substrate, heating is performed to melt the transfer medium layer; and the transfer medium layer is removed. The transfer method of the application utilizes the characteristic that the photoresist can be softened at a low melting point after being solidified, and firstly solidifies the photoresist on the surface of the two-dimensional material film to be transferred to serve as a support medium for the transfer of the film, so that the transfer of the film is realized. After being transferred to the target substrate, the solidified photoresist can be softened, so that the transferred two-dimensional material film can be fully contacted with the target substrate, and the complete and intact transfer of the two-dimensional material film can be realized. The transfer method of the application is especially suitable for the transfer to a rough target substrate.

The invention discloses an electrochemical method for regulating and controlling the phase, resistance and magnetism of a two-dimensional layered material, and belongs to the field of two-dimensional transition metal chalcogenide. The electrochemical method comprises the steps that an electrode system is provided, the electrode system comprises a working electrode and a counter electrode, the working electrode comprises a two-dimensional layered material, the chemical formula of the two-dimensional layered material is MX2, M represents a transition metal element, and X represents a group VI element where a sulfur element is located; providing an electrolyte, wherein the electrolyte is a soluble salt solution containing magnetic transition metal ions; the electrode system is placed in the electrolyte, and under the action of an external electric field, the magnetic transition metal ions are embedded and separated from the two-dimensional layered material, so that the phase, the resistance and the magnetism of the two-dimensional layered material are synergistically regulated and controlled. According to the technology, magnetic transition metal ions are driven by an electric field to be reversibly embedded into and separated from a two-dimensional layered material, so that the phase, the resistance and the magnetism of the two-dimensional layered material are synergistically and dynamically regulated and controlled, and the problems that the traditional external field regulation and control dimension is single, and intrinsic physical property coupling change is difficult to realize are solved. And multi-physical-property combined regulation and control is realized by adjusting an electric field, so that a basis is provided for application of the material in the fields of photoelectric devices, magnetoelectric storage, sensors and the like.

The application belongs to the technical field of electrochemical energy storage materials, and discloses application of a sulfide-based hollow nanobrick heterojunction anode coating material and a preparation method thereof, in particular, application of the sulfide-based hollow nanobrick heterojunction anode coating material to an aqueous zinc ion battery, wherein the sulfide-based hollow nanobrick heterojunction comprises an X metal sulfide and a Y metal sulfide, and the heterojunction is represented as XS-YS n , 0 < n < 3, X is Zn, and Y is selected from one of Sn, Co, Cu or Mo; the preparation method comprises the following steps: mixing a zinc salt and a fluoride etchant, and one of a tin salt, a cobalt salt, a copper salt or a molybdenum salt, and then performing a hydrothermal reaction to obtain a bimetal-based hollow nanobrick precursor; and then performing sulfurization calcination to obtain the XS-YS n . The sulfide-based hollow nanobrick heterojunction can effectively inhibit zinc dendrite growth and interface side reactions, thereby significantly improving the electrochemical stability of the material, and further prolonging the cycle life of the aqueous zinc ion battery.

The invention relates to the technical field of electrochemical energy storage materials, in particular to a few-layer Ti3C2 heterostructure constructed by a bifunctional molecular bridge technology as well as a preparation method and application thereof, and the preparation method comprises the following steps: uniformly mixing 11-aminoundecanoic acid (AUAm), (NH4) 6Mo7O24. 4H2O, a few-layer transition metal carbide solution (FLM) and CH4N2S with water, and carrying out hydrothermal reaction to obtain a few-layer Ti3C2 heterostructure material. The molecular bridge designed by the invention has a bifunctional characteristic, the-NH2 group of the molecular bridge can be inserted between MoS2 layers to expand the interlayer spacing, the-COOH group of the molecular bridge and-OH on the surface of FLM form a covalent bond, the in-situ growth of intercalated MoS2 on few-layer metal carbide is realized, the construction of an FLM / AUAm / MoS2 heterostructure is promoted, and the material designed by the technology can be used as a supercapacitor electrode material and has a wide application prospect. The excellent electrochemical performance is shown.

The application discloses a preparation method of a suspended two-dimensional material film and the suspended two-dimensional material film. The preparation method comprises the following steps: providing a substrate, wherein the substrate has a first surface and a second surface opposite to each other; forming a sacrificial layer film on the first surface of the substrate; forming a through hole on the second surface of the substrate, and the through hole exposes the sacrificial layer film; obtaining a two-dimensional material film, transferring the two-dimensional material film to the sacrificial layer film, and the two-dimensional material film covers the through hole; etching the sacrificial layer film from the second surface of the substrate until the two-dimensional material film is exposed, and a suspended two-dimensional material film is formed. The preparation method of the suspended two-dimensional material film and the suspended two-dimensional material film have the advantages that the two-dimensional material film has low transfer difficulty, the light source has little influence on the test, and the test means is effectively widened.

A composite product includes molybdenum disulfide particles and palladium particles, in which an average crystallite size of molybdenum disulfide included in the molybdenum disulfide particles determined from a peak of 2θ=14.4°±0.5° obtained by X ray diffraction measurement is 150 nm or less. A catalyst ink includes the composite product and a dispersing medium. A method for producing the composite product includes a step of mixing molybdenum disulfide particles and a palladium solution, in which an average crystallite size of molybdenum disulfide included in the molybdenum disulfide particles determined from a peak of 2θ=14.4°±0.5° obtained by X ray diffraction measurement is 150 nm or less.

The application belongs to the field of antibacterial two-dimensional nanomaterial Mxene catalysts, and particularly relates to a monolayer W@MoS2 nanosheet as well as a preparation method and application thereof. The method comprises the following steps: 1) dissolving water-soluble molybdate and water-soluble tungstate in water to obtain a mixed solution; 2) adding a sulfur source and an organic solvent to the mixed solution, and then performing reaction after mixing, and drying to obtain a powder. The monolayer W@MoS2 nanosheet has a unique two-dimensional planar structure, a large specific surface area, and good optical and electronic properties, and has high light-heat absorption in the near-infrared two region, i.e., the light-heat conversion efficiency is improved. Meanwhile, the peroxidase-like activity of the monolayer W@MoS2 nanosheet material realizes efficient light-heat amplification, can treat methicillin-resistant Staphylococcus aureus infection, and avoids heat therapy damage to normal tissues.

A molybdenum trioxide powder, which contains an aggregate of primary particles comprising a crystal structure of molybdenum trioxide, the crystal structure comprising α-crystals having an average crystallite size of 50 nm or less. The median particle diameter D50 of the primary particles, which is obtained by a dynamic light scattering method, is 2000 nm or less. 50 is 2000 nm or less.

The invention provides a lithium battery negative electrode material MoS2 and a preparation method and application thereof.The preparation method comprises the following steps that S1, sodium molybdate dihydrate is taken and added into a glucose solution, thiourea is added after dissolution, dissolution continues, and a solution before reaction is obtained; the mass volume ratio of the sodium molybdate dehydrate to the thiourea to the glucose solution is 1g: (2-3g): (40-50mL); s2, transferring the solution before reaction into a polytetrafluoroethylene hydrothermal kettle, sealing, carrying out hydrothermal reaction at 180-200 DEG C for 12-36 hours to obtain a black precipitate, and carrying out ultrasonic treatment, cleaning and drying on the black precipitate to obtain a black product; and S3, in an inert gas atmosphere, carrying out annealing treatment on the black product, and cooling to obtain the MoS2 material. The MoS2 nanoflower prepared by the preparation method disclosed by the invention, as a negative electrode material of a battery, shows excellent cycling stability, rate capability and excellent morphological characteristics in the aspect of a battery material, shows excellent electrochemical performance, and provides reliable support for application of the MoS2 nanoflower in the field of batteries.

A system and method for performing is laser induced forward transfer (LIFT) of 2D materials is disclosed. The method includes generating a receiver substrate, generating a donor substrate, wherein the donor substrate comprises a back surface and a front surface, applying a coating to the front surface, wherein the coating includes donor material, aligning the front surface of the donor substrate to be parallel to and facing the receiver substrate, wherein the donor material is disposed adjacent to the target layer, and irradiating the coating through the back surface of the donor substrate with one or more laser pulses produced by a laser to transfer a portion of the donor material to the target layer. The donor material may include Bi2Se(3-x)Sx, MOS2, hexagonal boron nitride (h-BN) or graphene. The method may be used to create touch sensors and other electronic components.

A molybdenum trioxide powder contains an aggregate of primary particles having a β crystal structure of molybdenum trioxide. The molybdenum trioxide powder has a MoO3 content ratio of 99.6% or more measured by X-ray fluorescence (XRF), and has an average particle diameter of the primary particles of 1 μm or less. A method for producing the above molybdenum trioxide powder includes vaporizing a molybdenum oxide precursor compound to form molybdenum trioxide vapor, and cooling the molybdenum trioxide vapor.

The invention discloses a method for preparing high-purity molybdenum disulfide through impurity removal of low-grade molybdenum concentrate, and belongs to the technical field of mineral purification and comprehensive utilization of resources. The method comprises two key steps of chloridizing roasting of a microwave reinforced composite chloridizing agent and double-frequency ultrasonic reinforced acid leaching. Firstly, a low-temperature co-melting system is constructed through a composite chlorinating agent, the chlorination reaction temperature is remarkably reduced, selective chlorination conversion of impurities is achieved under the action of a microwave field, and the impurities such as chalcopyrite and pyrite which are difficult to effectively remove through a conventional method are converted into chlorides easy to remove; and therefore, the impurity removal difficulty of the subsequent leaching procedure is greatly reduced. And then, double-frequency ultrasonic synergistic enhancement is introduced in the acid leaching process, and deep purification of the minerals is achieved through the surface purification effect of high-frequency ultrasonic and structural dissociation and mass transfer enhancement of low-frequency ultrasonic. According to the method, the removal efficiency of impurities such as iron, copper and silicon in the low-grade molybdenum concentrate can be remarkably improved, the removal rates of the iron, the copper and the silicon all reach 98% or above, and particularly the technical problem that the impurities of the chalcopyrite are difficult to remove efficiently is solved.

The invention provides a preparation method and application of a precursor for laser synthesis of a MoS2 (WS2) film, and belongs to the technical field of semiconductor film materials.The preparation method comprises the following steps that S1, a container is placed in a water bath heating environment, deionized water, a molybdenum source or a tungsten source and a sulfur source are added, and a supersaturated solution is obtained after continuous stirring; and S2, in a water bath heating environment, adding a nonionic surfactant into the supersaturated solution, continuously stirring, and filtering after the nonionic surfactant and the supersaturated solution are fully mixed to obtain a precursor solution. Coating a substrate with the precursor solution, and drying the coated substrate; and irradiating the precursor solution coated on the substrate by using a laser beam to obtain the MoS2 (WS2) film. The process is simple and easy to implement, and rapid and low-cost preparation of the MoS2 (WS2) film can be realized.

This invention belongs to the field of two-dimensional materials technology, specifically relating to a clean and non-destructive method for transferring two-dimensional semiconductor materials. The transfer method includes the following steps: growing a two-dimensional semiconductor material on a growth substrate, then growing an inorganic protective layer on the surface of the two-dimensional semiconductor and spin-coating an organic polymer support layer, heating and curing, peeling off the growth substrate, transferring the peeled structure to a target substrate, removing the organic polymer support layer, and obtaining an inorganic protective layer / two-dimensional semiconductor / target substrate structure, thus completing the two-dimensional semiconductor material transfer. This invention's two-dimensional semiconductor material transfer method is simple and easy to implement, achieving not only clean and non-destructive transfer of the two-dimensional semiconductor material but also protecting the transferred two-dimensional semiconductor material from the effects of water and oxygen in the air, maximizing the preservation of the original properties of the two-dimensional semiconductor material.

This invention discloses an amorphous MoS2 / rGO active material, its preparation method, and its application in the preparation of cathode materials for sodium-ion batteries, belonging to the technical field of sodium-ion battery cathode materials and their preparation. This invention solves the problem that existing MoS2-based electrode materials have high crystallinity and are prone to large volume expansion during charge-discharge cycling, which disrupts the stability of the MoS2 structure and leads to significant capacity decay during cycling. This invention uses EG as a solvent to prepare an amorphous MoS2 / rGO active material using a one-pot solvothermal method, in which MoS2 is uniformly distributed on the three-dimensional carbon framework of rGO. The amorphous structure improves the cycle stability of sodium-ion batteries. Sodium-ion batteries prepared using this material as a cathode material exhibit a first-cycle discharge specific capacity of 142.1 mAh / g at a current density of 1 A / g, and a capacity decay rate of only 9% after 2000 cycles.

The application discloses a metal phase MoS2 negative electrode material prepared by a molten alkali, and the metal phase MoS2 negative electrode material is used as a sodium ion battery negative electrode material; and the application further discloses a preparation method of the metal phase MoS2 negative electrode material prepared by the molten alkali, and the preparation method comprises the following steps: preparing a mixed alkali material; mixing the mixed alkali material with MoS2 according to mass to obtain a mixed raw material; heating the mixed raw material through a microwave to obtain a molten material; and cooling, cleaning and drying the molten material to obtain the metal phase MoS2 negative electrode material, so that the sodium ion battery has the advantages of high specific capacity, good conductivity, no obvious volume change in the charging and discharging process, and relatively slow capacity attenuation.

This invention belongs to the field of catalyst preparation technology and discloses a Pt atom substitution-induced MoS2 phase transition method for enhancing the performance of water electrolysis for hydrogen production. Specifically, it relates to a method for preparing a low-platinum-loaded 1T-MoS2 composite material (Pt@1T-MoS2 / C) decorated with uniformly substituted platinum atoms on a conductive porous carbon electrocatalyst and its application in the field of electrocatalytic hydrogen evolution. By introducing Pt single atoms into the basal surface of highly conductive carbon-supported 2H-MoS2, a phase transition from 2H-MoS2 to 1T-MoS2 is achieved. This results in the synthesis of a highly efficient and economical low-platinum-loaded Pt@1T-MoS2 / C composite material that combines high conductivity, large specific surface area, high activity, and high stability. This material offers advantages of low cost, high activity, and high stability, effectively solving the problem of balancing activity and stability in MoS2 catalysts for electrocatalytic hydrogen evolution. It has significant implications and promising applications in reducing the cost of water electrolysis hydrogen evolution catalysts, improving hydrogen production efficiency, and reducing reaction energy consumption.

The application relates to a controllable preparation method of high-length-width-ratio molybdenum disulfide nanobelt or microbelt, and belongs to the field of low-dimensional material preparation. A molybdate solution is used as a molybdenum source, a sodium hydroxide solution is used as a catalyst, and sulfur powder is used as a sulfur source, and the molybdenum disulfide nanobelt or microbelt is obtained through a chemical vapor deposition method; by adjusting the different proportions of the mixed solution of sodium molybdate and sodium hydroxide, the size and orientation of the nanobelt / microbelt can be controlled and adjusted; by adjusting the growth time, the layer number of the nanobelt / microbelt can be adjusted; finally, the molybdenum disulfide nanobelt / microbelt with a length-width ratio greater than 100, different sizes, orientations and layer numbers can be controllably obtained on a substrate. The preparation process is simple, the production cost is low, the size, orientation and layer number are controllable, and the method is suitable for batch production.

The application discloses a preparation method of 1T phase molybdenum sulfide and application thereof, and the method comprises the following steps: under the action of an applied magnetic field, taking ammonium molybdate tetrahydrate and thiourea as a molybdenum source and a sulfur source respectively, taking cobalt nitrate hexahydrate as an initiator, and generating 1T phase molybdenum sulfide in a reaction process through a one-step hydrothermal method. The 1T phase molybdenum sulfide is used for preparing an oxygen evolution and hydrogen evolution bifunctional electrode. The application utilizes a magnetic field and Co atoms to convert a hydrothermal synthesis product from 2H phase molybdenum sulfide into 1T phase molybdenum sulfide, and prepares a HER and OER bifunctional catalyst with high conductivity and excellent catalytic performance. The method is simple and economical, the effect is remarkable, the problem of difficulty in preparing 1T phase molybdenum sulfide catalyst is solved, and the method has great application value in the field of electrochemical catalysis.

The invention provides Nd-doped molybdenum disulfide with adjustable near-infrared nonlinear absorption and a preparation method of the Nd-doped molybdenum disulfide, belongs to the technical field of nano materials, and aims to solve the technical problem of poor near-infrared photoelectric property of MoS2. The preparation method of the Nd-doped molybdenum disulfide comprises the following steps: dissolving a molybdenum source, a sulfur source, a neodymium source and a reducing agent into a solvent to prepare a reaction solution, and performing solvothermal reaction to prepare the Nd-doped molybdenum disulfide nano material. The prepared MoS2 nanosheet is rich in VS, and the band gap of the MoS2 nanosheet is reduced to 0.75 eV and is obviously lower than the standard band gap (1.28-1.98 eV) of intrinsic MoS2, so that the nonlinear optical response at the wavelength of 1064 nm is successfully realized, the SA effect is shown, and the MoS2 nanosheet can be applied to devices such as a saturable absorber, an optical switch and a laser mode locker. Furthermore, by introducing Nd < 3 + > for doping, controllable conversion of nonlinear absorption behavior from SA to RSA along with light intensity change is realized.

The application is a preparation method of a bimetallic sulfide heterojunction material. The method comprises the following steps: (1) taking urea and cobalt chloride hexahydrate and dissolving them in deionized water to obtain a precursor material by heating reaction; then the precursor material is dissolved in deionized water with sodium sulfide nonahydrate to obtain Co9S8 powder by heating reaction; (2) adding Co9S8 into a mixed solution of an organic solvent and deionized water, then adding metal oxyacid salt and sulfur source in sequence, and obtaining the bimetallic sulfide heterojunction material by heating reaction. The lithium-sulfur battery assembled by the modified positive electrode of the bimetallic sulfide heterojunction material has an initial discharge specific capacity as high as 1426 mA h g ‑1 , and the average capacity attenuation of each cycle is only 0.008% after 2000 cycles under the condition of 4 C.

The invention relates to the technical field of electromagnetic shielding materials, and particularly discloses an aramid fiber-based multilayer composite film as well as a preparation method and application thereof. The composite film is designed in a multi-level gradient structure, and multiple loss mechanisms are generated in an electromagnetic field from top to bottom: NiFe and MoS2 / ANF realize initial electromagnetic wave energy absorption through eddy-current loss and magnetic hysteresis loss of NiFe and dielectric polarization relaxation of a MoS2 / ANF interface; agNPs forms a continuous conductive network by virtue of high conductivity, and a strong reflection effect is generated through ohmic loss to reflect part of electromagnetic waves back to an upper layer for continuous dissipation; the ANF / MWCNTs carry out secondary capture and reabsorption on transmission electromagnetic waves through the electron tunneling effect and the multi-interface scattering effect of the carbon nanotubes, an electromagnetic shielding behavior of absorption-reflection-reabsorption is formed, and the attenuation efficiency of the electromagnetic waves is remarkably improved through the synergistic effect of dielectric loss, magnetic loss and interface multi-reflection loss of the ANF / MWCNTs.

The application relates to the field of electrochemistry, in particular to a lithium-rich material and a preparation method thereof, and a positive electrode sheet, a secondary battery and an electric device comprising the lithium-rich material. The lithium-rich material comprises an internal phase coated by a coating phase; the internal phase is a doped lithium-rich lithium iron phosphate, and the coating phase is a mixed layer comprising cobalt disulfide and molybdenum trisulfide. The lithium-rich material improves the migration rate of lithium ions, which not only directly reduces the internal resistance of the battery after the first charging, but also significantly improves the specific capacity of the material, thereby effectively improving the overall energy density and rate performance of the battery. The lithium-rich material has excellent environmental adaptability and can remain stable under high humidity conditions, which greatly reduces the dependence of the production process on dry environments, simplifies the production process and helps to control the manufacturing cost.

Provided are a noble metal adsorbent capable of achieving high adsorption performance for noble metals and capable of easily recovering noble metals, a noble metal recovery method, and a noble metal adsorbent regeneration method. The noble metal adsorbent of the present invention contains a metal sulfide. The metal sulfide is composed of, for example, molybdenum disulfide particles. In the noble metal recovery method of the present invention, after adsorbing noble metals to the noble metal adsorbent, the noble metal adsorbent is heated in the presence of oxygen to volatilize it, thereby recovering the noble metals.

The invention discloses a transition metal atom doped molybdenum disulfide nanosheet as well as a preparation method and application thereof, and relates to the technical field of nano materials. A molybdenum-containing multi-metal oxygen cluster is used as a precursor, a transition metal atom doped molybdenum disulfide nanosheet electrocatalyst with high activity sites is prepared through a hydrothermal method, a battery diaphragm is modified by the transition metal atom doped molybdenum disulfide nanosheet electrocatalyst, and the purposes of sulfur fixation and polysulfide conversion reaction promotion are achieved at the same time. The preparation method of the nanosheet is simple and easy to implement, the polysulfide shuttling inhibition effect and the catalytic effect are obvious, and the cycle performance of the battery is obviously improved.

The invention relates to the technical field of electrochemical energy storage, in particular to a Li / Na ion battery negative electrode material heterojunction as well as a construction method and a performance prediction method thereof, the negative electrode material is a two-dimensional MoB / MoS2 Van der Waals heterojunction, and is formed by compounding MoB with high conductivity and MoS2 with high theoretical capacity. A built-in electric field induced by a work function difference exists at an interface of the heterojunction, so that electron transmission and ion migration can be remarkably accelerated; meanwhile, volume change in the charging and discharging process is effectively buffered through tight interface coupling and B-S covalent interaction, and the structural stability is enhanced. Through systematic evaluation of a first principle calculation method, the MoB / MoS2 heterojunction shows high theoretical specific capacity, low ion diffusion barrier, appropriate open-circuit voltage and excellent structural and mechanical stability, and is a high-performance Li / Na ion battery negative electrode material with great potential.

The invention relates to the field of electrocatalysts, in particular to an iridium dioxide / molybdenum disulfide / carbon matrix heterostructure electrocatalyst, a preparation method and application. According to the iridium dioxide / molybdenum disulfide / carbon matrix heterostructure electrocatalyst provided by the invention, IrO2 and MoS2 in a heterojunction structure can be mutually adjusted, so that the electrocatalyst has a higher electron transfer rate, excellent hydrophilicity, proper OH * adsorption capacity and a higher deprotonation rate, has better electrochemical performance in catalytic electrolysis of water, and can be used for preparing a high-performance electrocatalyst. In an oxygen evolution reaction, the iridium oxide shows performance far superior to that of commercial iridium oxide, and has relatively low overpotential and relatively high quality activity; good electrochemical performance is shown in the aspect of hydrogen precipitation and is superior to that of commercial Pt / C; and the used material shows relatively low decomposition voltage when being applied to electrolyzed water. Therefore, the IrO2 / MoS2 / CNT heterostructure catalyst can be widely and deeply applied to electrolyzed water.