332 results about "Water splitting" patented technology

The invention discloses a preparation method of a rare earth element doped nickel-based selenide nano-material and application of the rare earth element doped nickel-based selenide nano-material in electro-catalysis water full-hydrolysis reaction. According to the method, nickel salt, cerium salt, selenium dioxide and potassium chloride are prepared into electrolyte, and the electrolyte is subjected to electro-deposition on a foamed nickel substrate to obtain Ce-doped Ni0.85Se nanoparticles growing on foamed nickel. The crystal structure and electron distribution of Ni0.85Se are optimized by doping trace rare earth element cerium, so that the HER and OER performances of the Ni0.85Se are greatly improved. The prepared catalyst is self-supporting closely-packed nanoparticles, the formed amorphous structure is easy to expose more active sites, the catalyst has good electrocatalytic hydrogen evolution and oxygen evolution performance under alkaline conditions, the overpotential in electrocatalysis of nickel-based selenide is greatly reduced, and the electrocatalytic performance of nickel-based selenide is improved. And excellent electro-catalytic activity is shown in electro-catalytic water full hydrolysis. And the self-supporting electrode is not easy to fall off due to generation of bubbles in the reaction process, so that the working stability of the catalyst is improved.

The invention belongs to the technical field of water purification, and particularly discloses commercial filtering type magnetization water purification equipment which comprises a first magnetization body, a second magnetization body and a water purification device. And the plurality of magnets are arranged outside the magnetized body at intervals in the circumferential direction. When the water flow moves along the spiral flow channel, the water flow not only rotates along with the flow channel, but also continuously cuts the surrounding magnetic induction lines, compared with a traditional linear flow channel, the relative movement of the water flow and the magnetic induction lines is more complex, hydrogen bonds among water molecules can be more effectively broken, macromolecular group water is decomposed into micromolecular group water, and the permeability and solubility of the water are improved.

The invention discloses a preparation method and application of a bimetallic sulfide / three-dimensional porous carbon catalyst, and relates to the technical field of electrolyzed water catalysts.The preparation method comprises the following steps that melamine sponge is cleaned, and the clean melamine sponge is obtained; the preparation method comprises the following steps: dissolving metal salt 1 and metal salt 2 in an ethanol aqueous solution, and adding alkali and an aniline monomer to obtain a precursor solution; completely soaking the clean melamine sponge in a precursor solution, carrying out constant-temperature hydrothermal reaction, and sequentially washing and drying to obtain the melamine sponge anchored with bimetal ions; introducing inert gas for protection, and performing high-temperature vulcanization treatment to obtain the three-dimensional porous carbon catalyst embedded with the bimetallic sulfide heterostructure. The catalyst comprises uniformly dispersed bimetallic sulfide nanoparticles and a spongy three-dimensional porous carbon carrier, shows excellent bifunctional catalytic activity and stability when being applied to an electro-catalytic water decomposition reaction, and has a wide application prospect.

The application discloses a preparation method and application of a ferroelectric full water-splitting photocatalyst. The preparation method comprises the following steps: S1: pretreating a ferroelectric material to obtain a pretreated ferroelectric material; S2: after atomic layer deposition of the pretreated ferroelectric material and a metal organic complex source material, non-active gas I is introduced to perform blowing I, water is introduced, non-active gas II is introduced again to perform blowing II, and the first deposition is completed; and S3: according to the thickness of the ferroelectric full water-splitting photocatalyst, the step S2 is circularly performed to obtain the ferroelectric full water-splitting photocatalyst. The ferroelectric material can efficiently photocatalyze full water splitting through accurate regulation and modification of the surface of the ferroelectric material by the atomic layer deposition technology. The method not only provides an experimental basis for researching the limiting factors of the ferroelectric material in a photocatalytic reaction, but also provides a new idea for constructing an efficient photocatalyst by using efficient charge separation and depolarization electric field of the ferroelectric material.

A nanocomposite material including iron sulfide (FeS2) nanoparticles, iron oxide (α-Fe2O3) nanoparticles, titanium dioxide (TiO2) nanoparticles, and graphitic carbon nitride (C3N4) nanosheets and a method of its preparation. The nanocomposite is used in a method of forming oxygen gas from water using an applied voltage and photoirradiation, a method of forming hydrogen gas from water using an applied voltage and photoirradiation, and a method of photodegrading organic pollutants using visible light photoirradiation.

The present invention provides an oxygen-dominated supra-nano dual-phase catalytic reaction material, which includes a uniform oxygen-enriched amorphous shell and a core encapsulated within the uniform oxygen-enriched amorphous shell. This invention exhibits ultrahigh HER performance, a critical reaction in water splitting, making it suitable for application in hydrogen production industries, battery companies, new energy vehicle enterprises, and large power stations.

The invention relates to an island energy system based on deep reinforcement learning. The island energy system comprises an energy device, an electrolysis device, an energy storage battery, a hydrogen storage device, an oxygen storage device, a pressure swing adsorption device, an ammonia synthesis device, a seawater desalination device and a scheduling device, the energy device inputs electric energy to the electrolysis device, the energy storage battery, the pressure swing adsorption device and the seawater desalination device; the electrolysis device is used for decomposing water provided by the seawater desalination device into hydrogen and oxygen; the pressure swing adsorption device provides nitrogen; the hydrogen storage device stores hydrogen, and then the hydrogen and nitrogen are input into the ammonia synthesis device; the oxygen storage device stores oxygen; the scheduling device constructs the real-time operation state of the system into a multi-dimensional state vector, forms an electricity-hydrogen-oxygen-ammonia-water multi-energy flow coupled balance constraint system, makes a decision on the multi-dimensional state vector based on a near-end strategy optimization algorithm, and outputs an optimal strategy parameter. According to the system, the electrolysis device serves as a hub, the global relation between electrolysis hydrogen production and multi-energy combined supply is optimized, and the low-carbon energy supply, ecological restoration and load requirements are met.

The invention provides a preparation method of a cobalt-based intermetallic carbide material and application of the cobalt-based intermetallic carbide material in a preparation method of an electrocatalytic nitrate reduction electrolytic tank or a zinc-nitrate battery. The preparation method of the cobalt-based intermetallic carbide material comprises the following steps that cobalt chloride hexahydrate, indium chloride tetrahydrate, dicyandiamide and ketjen black are ground and mixed and then put into a tubular furnace for thermal annealing reduction, and the cobalt-based intermetallic carbide material is obtained. According to the method, cobalt-based intermetallic carbide material Co3InC0.75 powder is prepared into slurry, the slurry is dropped on carbon paper to be used for an electro-catalysis reaction, the material strengthens nitrate adsorption and water decomposition and inhibits a hydrogen evolution reaction, and therefore the performance of electro-catalysis of nitrate reduction to produce ammonia is improved.

An electrode includes a transparent substrate, and a layer of a nanostructured material at least partially covering a surface of the transparent substrate. The nanostructured material includes defective perovskite nanostructures (DPNSs) in the form of nanoplates having an average particle size in a range of 10 to 100 nanometers (nm), an interplanar spacing d(101) of the (101) plane in a range of 0.3 to 0.4 nm, and an interplanar spacing d(104) of the (104) plane in a range of 0.2 to 0.3 nm. A method of making the electrode.

Low-cost and earth abundant, Ni1-xMox alloy nanocrystals, with sizes ranging from 18-43 nm and varying Mo composition (0.0-11.4%), were produced by a colloidal chemistry method for alkaline HER reactions. For a water splitting current density of −10 mA / cm2, these alloys demonstrate over-potentials of −62 to −177 mV, which are comparable to commercial Pt-based electrocatalysts (−68 to −129 mV). The cubic Ni0.934Mo0.066 alloy nanocrystals exhibit the highest activity as alkaline HER electrocatalysts, outperforming commercial Pt / C (20 wt %) catalyst.

An electrocatalyst that includes a carbon cloth (CC) substrate including carbon fibers having a mean diameter of 2.5 to 25 micrometer (μm), and a catalyst disposed on the CC substrate, the catalyst including a conductive metal-organic framework (MOF) including a metal and triazole structural units, and a metal sulfide including the metal disposed on the conductive MOF. The catalyst is present as structures having a mean size of 2.5 to 25 μm and a surface texture having projections having a mean size of 100 to 500 nanometer (nm). The electrocatalyst is used in a method of forming hydrogen via the HER and a method of forming oxygen via the OER.

This invention provides a three-dimensional carbon nitride photocatalyst with an advanced structure, its preparation method, and its application, relating to the field of photocatalyst technology. The preparation method includes: obtaining graphitic carbon nitride through thermal condensation and nitrogen-rich precursor polymerization; mixing the graphitic carbon nitride in a polyphenol solution, then adding Tris-HCl solution dropwise and stirring to react, causing the polyphenols to polymerize in situ on the surface of the graphitic carbon nitride to form a polyphenol coating; separating and drying the coating to obtain a composite intermediate; mixing and grinding the composite intermediate with molten salt, then calcining it under a protective atmosphere at 400-650℃ to obtain the three-dimensional carbon nitride photocatalyst with an advanced structure. The preparation method provided by this invention is green and environmentally friendly, using readily available and inexpensive raw materials. Simultaneously, the reaction conditions are mild, requiring no template agent. The resulting catalyst has an advanced structure and exhibits extremely high photocatalytic activity for water splitting to produce hydrogen and excellent stability at room temperature and pressure, showing promising application prospects and economic benefits.

The invention discloses a vector calculation-based water meter water quantity and water rate calculation method, and aims to solve the technical problems of I / O bottleneck, high calculation delay and poor expansibility in existing large-scale water meter charging. The method comprises the following steps: constructing a water meter data column vector, calculating an original difference vector based on a current-period reading vector and a previous-period reading vector, and performing Boolean mask processing to obtain a meter reading water volume vector; actual water consumption accounting, total and score table allocation and allocated water amount calculation are achieved through vector operation; a billing water volume vector is obtained in combination with a preferential strategy, and an actual water fee is finally obtained through mixed water splitting, stepped billing matrix operation and water fee preferential adjustment. According to the method, vectorization and matrix operation are adopted to replace traditional line-by-line calculation, so that the operation efficiency can be improved through parallel calculation, the vector algorithm is designed to adapt to complex water affair billing logic, the processing performance is effectively improved, efficient and large-scale billing is achieved, the intelligent water affair development requirement is met, and practicability and popularization value are achieved.

A method for preparing and applying an iron hydroxyl oxide-metal-organic framework heterostructure alkaline water electrolysis catalyst is disclosed, belonging to the technical field of electrochemical energy storage materials. The preparation method involves: firstly, anolysing iron foam under constant current; then dissolving 2,5-dihydroxyterephthalic acid and nickel nitrate hexahydrate in a mixed solvent of N,N-dimethylformamide / ethanol / deionized water; transferring the mixture to a reaction vessel, tilting the iron foam into the vessel, sealing and heating the reaction, and then naturally cooling to room temperature; removing the iron foam, rinsing it with deionized water and ethanol (both sides), and finally vacuum drying. This method is simple and reproducible, requiring no cumbersome high-temperature pyrolysis or etching processes, and is suitable for large-scale preparation. In a standard three-electrode system, the prepared electrocatalyst is directly used as the working electrode in a 1 M KOH electrolyte for electrocatalytic reaction; the electrocatalyst exhibits excellent water splitting activity and cycling stability at high current densities.

This invention provides a self-supporting one-dimensional nanorod array composite material, its preparation method, and its application, belonging to the field of clean energy harvesting technology. The preparation method provided by this invention includes the following steps: mixing soluble nickel salt, soluble molybdate, and water, and carrying out a hydrothermal reaction to obtain a NiMo precursor; heat-treating the NiMo precursor and a modifier under a protective atmosphere to obtain the self-supporting one-dimensional nanorod array composite material. Experimental results show that the composite material prepared by the method provided by this invention has excellent electrocatalytic water splitting activity and operational stability, and photo-assisted synthesis further enhances the electrocatalytic water splitting activity of the composite material, making it applicable to solar-driven electrocatalytic water splitting.

The invention discloses a P-doped Bi4Si3O12-Bi12SiO20 heterojunction photoelectric catalytic material as well as a preparation method and application thereof. The preparation method comprises the following steps: adding Bi (NO3) 3.5 H2O into ethylene glycol, and stirring until Bi (NO3) 3.5 H2O is dissolved to obtain a solution A; adding sodium silicate nonahydrate into deionized water, and stirring until the sodium silicate nonahydrate is dissolved to obtain a solution B; dropwise adding the solution B into the solution A, uniformly stirring to obtain a mixed solution, adding sodium phosphate, and uniformly stirring to obtain a solution C; the pH value of the solution C is adjusted to 3-14, CTAB is added into the solution, the mixture is stirred to be uniform and then filled into a reaction kettle lining, the reaction kettle lining is placed in a hydrothermal drying oven to react for 6-48 h at the temperature of 100-220 DEG C, the temperature in the drying oven is reduced to the room temperature, then the reaction kettle is taken out to be cooled, centrifugation, washing and drying are carried out, powder, namely the P-doped Bi4Si3O12-Bi12SiO20 heterojunction photoelectrocatalytic material is obtained, interface charge transfer is promoted through construction of the P-doped Bi4Si3O12-Bi12SiO20 heterojunction, and the P-doped Bi4Si3O12-Bi12SiO20 heterojunction photoelectrocatalytic material is obtained. The photogenerated charge separation is improved, and the yield of long-life charges is improved, so that the charge recombination is inhibited, and the efficiency of photoelectrocatalysis water splitting is greatly improved.

To provide a method for efficiently decomposing water into hydrogen and oxygen even under visible light irradiation by using a hydrogen-generating photocatalyst. The method for splitting water by light of the present invention is a method in which light is irradiated onto an aqueous solution containing one type of photocatalyst and a compound having oxidation-reduction ability dissolved therein.

This invention belongs to the field of photoelectrode material preparation technology for photoelectrode fabrication in photoelectrochemical water splitting, specifically a preferred-oriented Ta3N5 photoanode and its preparation method. This method utilizes an electron beam evaporation system and a high-temperature nitriding method to form a specifically oriented Ta3N5 inducing layer on a Nb substrate, and then achieves the orientation-continuous growth of the main Ta3N5 thin film. By adjusting the type of metal material in the inducing layer, the preferred orientation of the Ta3N5 crystal planes can be controlled, thereby achieving the regulation of the photoelectrochemical water splitting performance of the Ta3N5 thin film. This method has good structural repeatability and can be extended to the growth of different substrates and other material systems.

The invention provides a NiFePS / Co-ZIF-67 electrocatalyst as well as a preparation method and application of the NiFePS / Co-ZIF-67 electrocatalyst. The NiFePS / Co-ZIF-67 electrocatalyst is of a three-dimensional composite nanostructure formed by stacking NiFePS nanospheres on Co-ZIF-67 nanosheets grown on foamed nickel in situ. When the NiFePS / Co-ZIF-67 electrocatalyst is used as a difunctional electrocatalyst for full water splitting, the excellent difunctional full water splitting performance is shown, and the NiFePS / Co-ZIF-67 electrocatalyst has good catalytic stability under the conditions of HER, OER and full water splitting.

A hydrogen production method includes the heating of a catalyst in a furnace under reducing conditions to a first temperature, exposing the catalyst to water at a second temperature, and forming oxygen and hydrogen by thermolysis of the water, where the catalyst may include a barium niobate-based perovskite structure having the chemical formula of Ba1−x(AE)xNb1−(y+z)(AE)yMzO3−δ wherein AE is an alkaline earth (AE) element and M is a metal. M may include a transition metal or a rare earth metal. AE may include Mg, Ca, Sr, or a combination thereof. AE may alternatively include K, Rb, Cs or a combination thereof. M may include Fe, Co, Ni, Y, Yb, W, Ta, Pr, or a combination thereof. M may include Sc, Ti, V, Cr, Mn, Cu, Zn, Zr, Mo, La, Ce, Sm, Gd, W or a combination thereof.

The invention discloses an iron-cobalt-aluminum sulfide hydrogen evolution catalyst with high electric power fluctuation resistance as well as a preparation method and application thereof, relates to the technical field of electro-catalysis full water decomposition, and aims to solve the problem that a catalyst which is high in HER activity, resistant to industrial-grade current density and kept stable under a fluctuation electric power condition is lacked in the prior art. The preparation method is characterized by comprising the following steps: firstly, depositing urea and layered metal hydroxides of iron, cobalt and aluminum on the surface of a carrier through electrochemistry; and taking the layered metal hydroxide as a matrix, and carrying out hydrothermal in-situ vulcanization treatment to obtain the iron-cobalt-aluminum sulfide composite material. The composite material disclosed by the invention has a wide application prospect in preparation of an electrolytic hydrogen production cathode material.

The invention discloses a phosphorus-doped composite photo-anode catalyst for regulating and controlling a Co3O4 / Fe2O3 electronic structure as well as a preparation method and application of the phosphorus-doped composite photo-anode catalyst, and belongs to the technical field of hydrogen production by photoelectrochemical decomposition of water. The preparation method comprises the following steps that a Fe2O3 photo-anode is immersed in a ZIF-67 precursor solution, ZIF-67 is deposited in situ, and then a Co3O4 / Fe2O3 p-n heterojunction is obtained through calcination; and finally, carrying out annealing treatment by taking sodium hypophosphite as a phosphorus source in an inert atmosphere to realize phosphorus doping of Co3O4. According to the invention, the Co3O4 / Fe2O3 p-n heterojunction photoanode derived from ZIF-67 is prepared, and the electronic structure of Co3O4 is further modulated through P doping. Wherein an embedded electric field generated by the Co3O4 / Fe2O3 p-n heterojunction effectively promotes the rapid transfer of interface charges; p doping further adjusts the electronic structure of Co3O4, so that the energy barrier of the oxygen evolution reaction (OER) rate determination step is reduced, and the OER kinetics is accelerated; the synergistic effect of p-n heterojunction and electronic structure modulation significantly improves the water oxidation activity of Fe2O3.

Disclosed in the present invention are a C-TiO2 composite material using a carbon source as a raw material, a preparation method therefor and the use thereof. The preparation method comprises: dispersing a carbon source and TiO2 powder in a polar solvent to obtain a suspension A; heating the suspension A under a stirring condition, and volatilizing the polar solvent to obtain a mixture B; and calcining the mixture B to obtain a C-TiO2 composite material, wherein the carbon source comprises a first carbon source and / or a second carbon source, the first carbon source is elemental carbon, and the second carbon source is an organic matter that can be pyrolyzed to generate carbon. The present invention uses recycled or cheap carbon sources as raw materials to prepare the C-TiO2 composite material, which can effectively reduce environmental pollution caused by decommissioned new energy power lithium batteries while providing a feasible solution for the high-value utilization of cheap carbon sources. The C-TiO2 composite material is applied to the field of electrocatalytic water splitting to prepare efficient and stable oxygen evolution catalytic electrodes, thus realizing ampere-level current density applications oriented to industrial requirements.

A process for producing synthesis gas (syngas), to be used in particular for the synthesis of methanol or GTL hydrocarbons, comprises a first operation mode and a second operation mode; the first operation mode comprises the steps of: producing H2 by a reaction of splitting H2O into H2 and O2; producing CO by a reaction of splitting CO2 into CO and O2; using a first part of the CO obtained from the splitting of CO2 to form, together with H2 produced by water splitting, syngas; using a second part of the CO obtained from the splitting of CO2 in a CO conversion step together with H20, in which a water-gas shift reaction is conducted to convert CO into CO2 and produce H2, resulting in syngas; storing a third part of the CO in a storage; in the second operation mode, conducted alternatively to the first operation mode, CO stored in the first operation mode is taken from the storage and used, together with H2O, in a CO conversion step, in which the water-gas shift reaction is conducted to convert CO to CO2 and produce H2, resulting in syngas.

The invention relates to the technical field of photoelectrocatalysis, in particular to a Co (II) coordination polymer photoelectrode crystalline material and a preparation method and application thereof. The Co (II) coordination polymer {[Co (H2O) (Br-BDC) (BMIP)]. H2O} n is obtained from organic ligands BMIP, H2 (Br-BDC) and cobalt salt through a solvothermal method, cobalt (II) ions serve as three connection nodes, BMIP and H2 (Br-BDC) ligands serve as bridging ligands to be in mutual bridging, a two-dimensional honeycomb structure is formed, and a three-dimensional supramolecular structure is formed between layers through intermolecular hydrogen-bond interaction and pi-pi stacking. Wherein H2 (Br-BDC) is 2, 5-dibromoterephthalic acid, BMIP is 1, 3-bis (dimethylimidazolyl) propane, and n is a positive integer. The Co (II) coordination polymer shows relatively good photoelectric property, has the potential of serving as a photoelectrode material, has good optical and electrical characteristics, can be used for constructing an efficient photoelectrocatalysis water decomposition system, and has an application prospect in the aspects of photoelectric hydrolysis water oxidation and the like.

This invention relates to a g-C3N4@NiS composite photoelectrocatalyst and its preparation and application. The catalyst has a flower-like hierarchical porous structure, composed of g-C3N4 nanospheres and NiS nanoparticles supported thereon. The g-C3N4 nanospheres are assembled from stacked nanosheet layers. The NiS nanoparticles and g-C3N4 nanospheres form an in-situ covalently bonded heterojunction through Ni-S and Ni-N bonds, constructing a p-n heterostructure. The preparation method involves mixing melamine, glucose, CTAC, nickel acetate, and thiourea, and simultaneously achieving the condensation polymerization of g-C3N4 and the growth of NiS using a low-temperature one-pot hydrothermal method. Under alkaline conditions, the HER overpotential of this catalyst is only -2 mV at 10 mA cm⁻¹. ‑2 The overpotential of OER is 270 mV at 10 mA cm⁻¹. ‑2 In the dual-electrode total water splitting system, only 2.4 V is required to achieve 20 mA cm⁻¹. ‑2 It achieves a high current density and operates stably for over 24 hours, exhibiting excellent catalytic activity and stability in seawater. This invention boasts advantages such as a simple synthesis process, strong interfacial coupling, superior catalytic performance, and resistance to seawater corrosion.

The invention discloses a UIO66-NH2 (at) GE-TiO2 composite photo-anode based on interface amido bond modification as well as a preparation method and application of the UIO66-NH2 (at) GE-TiO2 composite photo-anode. The preparation method comprises the following steps: firstly, enabling a titanium source precursor and carboxyl functionalized graphene to grow a GE-TiO2 photo-anode on a conductive substrate through a hydrothermal method; secondly, growing a UIO66-NH2 layer on the surface of the GE-TiO2 in situ through a secondary hydrothermal method to form a primary composite structure; and finally, carrying out condensation reaction on amino in UIO66-NH2 and carboxyl on the surface of graphene in GE-TiO2 by utilizing a condensation reagent (EDCI / HOBt) to form covalent amido bond bridging, thereby obtaining the final composite photo-anode. Strong coupling between UIO66-NH2 and GE-TiO2 is achieved by constructing a covalent amido bond interface, the amido bond serves as an efficient directional carrier transmission channel, interface charge recombination is remarkably inhibited, and therefore the photoelectrochemical water decomposition performance of the photo-anode is greatly improved. The material has a wide application prospect in the field of green hydrogen production.

The invention discloses a bifunctional hollow nitrogen-doped carbon nanobox loaded ruthenium-ruthenium dioxide nano-catalyst as well as a preparation method and application thereof, and relates to the technical field of electro-catalysis. According to the preparation method, ZIF-8, ruthenium acetylacetonate and NaBr are adopted as raw materials and calcined in an inert atmosphere to obtain a hollow nitrogen-doped carbon nanobox loaded ruthenium nano-catalyst, and the hollow nitrogen-doped carbon nanobox loaded ruthenium-ruthenium dioxide nano-catalyst is obtained by calcining the hollow nitrogen-doped carbon nanobox loaded ruthenium nano-catalyst in an air atmosphere. Wherein through air calcination treatment, a derived carbon layer on the surface of the hollow nitrogen-doped carbon nanobox loaded ruthenium nano-catalyst can be burnt out, so that active substances are exposed, and the catalytic activity is improved; and elemental Ru can be partially oxidized into RuO2 to form Ru-RuO2 heterojunction, so that the stability and the HER performance are improved. The difunctional hollow nitrogen-doped carbon nanobox loaded ruthenium-ruthenium dioxide nano-catalyst prepared by the invention has excellent HER and OER activity, and can be used for electro-catalytic complete water splitting.

The application discloses high-entropy metal phosphide nanowires and a preparation method and application thereof. The preparation method comprises the following steps: high-temperature treatment is performed on carbon nanotubes, the high-temperature treated carbon nanotubes and metal chlorides are mixed and ball milled to obtain a mixture, the metal chlorides comprise chlorides of more than five metal elements; in a protective atmosphere, the mixture is placed in a reaction chamber, heated to perform a first reaction, and then cooled; a phosphorus source and a product obtained in the first reaction are respectively placed in different areas of the reaction chamber, heated to perform a second reaction, and high-entropy metal phosphide nanowires are prepared. The preparation method of the high-entropy metal phosphide nanowires provided by the application utilizes carbon nanotubes as a template to construct, fills multiple chlorides, and then reacts with a phosphorus source under high-temperature conditions to obtain one-dimensional high-entropy metal phosphide, and the prepared high-entropy metal phosphide nanowires can be used as an electrocatalyst with excellent activity and stability, applied to electrocatalytic water splitting, and has a wide prospect.