559 results about "Mixed metal" patented technology

The invention provides an in-situ modified lithium-rich manganese-based precursor and a preparation method and application thereof.The preparation method comprises the following steps that a nickel-cobalt-manganese mixed metal salt solution, a precipitator solution and a complexing agent solution are introduced into a base solution for a first coprecipitation reaction, and after the first coprecipitation reaction is finished, feeding is stopped; and introducing a doped nickel-cobalt-manganese mixed metal salt solution, a precipitant solution, a complexing agent solution and a carbon source solution into a system after the first coprecipitation reaction is finished, and carrying out a second coprecipitation reaction to obtain the in-situ modified lithium-rich manganese-based precursor. According to the preparation method, doping elements and a carbon source are introduced when the lithium-rich manganese-based precursor is prepared through the coprecipitation reaction, in-situ uniform construction of oxygen vacancies and a carbon coating layer on the surface of the material is synchronously achieved, the in-situ modified lithium-rich manganese-based precursor is obtained, the treatment step of subsequent secondary coating can be reduced, the production cost can be reduced, and the method is suitable for industrial production. The technological process is shortened.

The invention relates to methods for synthesizing an engineered adsorbent suitable for the selective extraction of lithium from brine solutions. The invention describes the advantages of introducing mixed metal oxides into the crystal lattice of anatase titania precursor. The invention offers significant advantages, including high adsorption capacity of the ion sieve, enhanced chemical stability of the sorbent, and higher lithium selectivity.

Cu-based catalysts with excellent thermal stability for selective hydrogenation and a preparation method thereof are provided. The method includes: first, six mixed metal salts are instantaneously nucleated in an alkaline solution by the nucleation / crystallization isolation method, to prepare high-entropy composite metal hydroxides (H-LDHs) with uniform element distribution and similar metal proportions. Furthermore, well-crystallized high-entropy oxides (HEOs) are obtained based on the structural topology characteristics of H-LDHs, and a series of Cu-Mx / HEOs catalysts with flexible adjustable catalytic microzone geometries and electronic structures are obtained using the HEOs as precursors.

The invention discloses a composite aluminum plate with an embedded mixed melting layer microstructure and a cast-rolling preparation method of the composite aluminum plate, and belongs to the technical field of aluminum alloy material preparation, the composite aluminum plate comprises a coating aluminum alloy, a matrix aluminum alloy and an embedded brazing flux mixed melting layer, the coating aluminum alloy is connected with the matrix aluminum alloy through the embedded brazing flux mixed melting layer, and the matrix aluminum alloy is connected with the embedded brazing flux mixed melting layer. The pre-embedded brazing flux mixed melting layer is a controllable mixed metal layer formed by mixing pre-embedded brazing flux metal and a fusion layer formed by a solid-liquid cast rolling process, the cast rolling preparation method is a coating-cast rolling combined preparation method, and the method has the advantages of being short in process, high in production efficiency, high in pre-embedded layer control precision and the like, and large-scale production of products is facilitated.

The invention provides a lithium manganese iron phosphate precursor and a preparation method thereof, lithium manganese iron phosphate, a lithium ion battery and electric equipment, and relates to the technical field of new energy. Primary particles of the lithium manganese iron phosphate precursor provided by the invention are thick-sheet-shaped, the side surfaces of the primary particles are porous, the large-size primary particles and the porous lithium manganese iron phosphate precursor have many defects, are easy to grind and have excellent processability, Li < + > is easier to react with manganese iron phosphate in the sintering process to generate lithium manganese iron phosphate with high sphericity degree, the compaction density is high, and the lithium manganese iron phosphate precursor has good performance. No other impure phase is generated, and the capacity and the rate capability are good. According to the preparation method of the lithium manganese iron phosphate precursor provided by the invention, the ammonium manganese iron phosphate hydrate with large-size primary particles can be generated by adding excessive phosphorus sources into the mixed metal salt solution. Furthermore, pyrophosphorylation is generated through high-temperature calcination, a large number of air holes are generated, and finally the porous lithium iron manganese phosphate precursor is generated.

The invention discloses iridium series mixed metal oxide titanium anode plate welding equipment, and relates to the technical field of welding equipment, the iridium series mixed metal oxide titanium anode plate welding equipment comprises a welding rack, a welding mechanism and an anode plate clamp, and the welding rack comprises adjustable supporting legs. The equipment stability is ensured through the adjustable supporting feet and the workbench structure, the anode plate clamp is matched with the first servo motor and the second servo motor on the portal frame to drive the threaded rod and the adjusting sliding block structure, the welding mechanism can be accurately positioned on the X / Y axis, flexible adjustment of a three-dimensional space welding path is achieved in combination with Z-axis downward pressing control of the telescopic cylinder, and the welding efficiency is improved. The integration of the process database and the touch display screen simplifies the parameter calling process, the microcontroller feeds back welding data in real time through the visual monitoring assembly, the consistency of the welding quality is effectively guaranteed, the protection assembly reduces the harm of intense light radiation to operators, and then the automation efficiency and safety are improved. And the titanium anode plate welding efficiency and the finished product qualification rate are remarkably improved.

The invention provides a graphene-based hydrogen sulfide gas sensor and a preparation method thereof, and relates to the technical field of gas sensors. The preparation method of the graphene-based hydrogen sulfide gas sensor comprises the following steps: soaking the wood substrate in a mixed metal salt solution containing a water-soluble silver salt and a water-soluble transition metal salt; irradiating the soaked wood substrate by using a laser beam at room temperature under the condition of no shielding gas, so that lignin and cellulose in the wood substrate are cracked and reconstructed to form graphene; meanwhile, the mixed metal salt immersed in the wood substrate is decomposed to form bimetallic oxide nanoparticles including silver oxide nanoparticles and transition metal oxide nanoparticles, and the bimetallic oxide nanoparticles are dispersed on the surface of each layer of graphene to obtain a sensitive layer; and coating conductive materials on the wooden substrate and on the two sides of the sensitive layer to form a connecting electrode in contact with the sensitive layer, thereby obtaining the graphene-based hydrogen sulfide gas sensor.

The invention relates to an iron-containing precursor and a preparation method and application thereof.The preparation method comprises the steps that a mixed metal salt solution is prepared, the mixed metal salt solution at least contains ferrous ions and a reducing agent, and the mass ratio of the ferrous ions to the reducing agent is 50: 1-100: 1; a complexing agent and water are mixed to serve as a base solution, a mixed metal salt solution, the complexing agent and a precipitator are added into the base solution, and a first-stage reaction, a second-stage reaction and a third-stage reaction are sequentially carried out; the volume percentages of the added complexing agent in the added mixed metal salt solution are X1, X2, X3 and X1lt respectively; x2lt; x1 / X3 is more than or equal to 0.65 and less than or equal to 0.75; and after the third-stage reaction is completed, preparing an iron-containing precursor. According to the method, a traditional batch method is optimized, the stability and repeatability of production batches are improved, and the prepared precursor is narrow in particle size distribution, uniform in morphology and high in sphericity degree.

The invention discloses a preparation method of a novel mixed metal oxide coating titanium electrode, and relates to the technical field of electrode preparation, the method comprises the following specific steps: titanium substrate pretreatment: a titanium plate is sequentially subjected to gradient polishing with 120-800-mesh abrasive paper, the polished titanium substrate is subjected to hydrochloric acid solution etching, argon plasma surface activation and drying treatment, and a titanium substrate is obtained; obtaining a clean substrate surface with proper roughness; through the low-temperature plasma treatment, pulsed bias magnetron sputtering and laser-induced atomic layer deposition (LA-ALD) combined technology, the binding force of the coating and the titanium substrate is remarkably improved, high-energy particles are used for bombarding the surface of the titanium substrate in the low-temperature plasma treatment, residual impurities are effectively removed, the surface roughness and active sites are increased, and the surface hardness of the titanium substrate is improved. In the pulsed bias magnetron sputtering process, the surface of the substrate is further cleaned through periodic ion bombardment, atomic diffusion and mixing between the coating and the substrate are promoted, a transition layer structure is formed, and therefore the binding force is greatly enhanced.

Acrolein is produced by selectively oxidizing allyl alcohol over a first mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The first mixed metal oxide catalyst comprises oxides of molybdenum and bismuth. Acrylic acid is produced by selectively oxidizing the acrolein over a second mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The second mixed metal oxide catalyst has a different composition from the first mixed metal oxide catalyst.

The invention discloses an ultrahigh-temperature multi-element iridium alloy material and a preparation method thereof, and belongs to the technical field of alloy materials. The iridium alloy material comprises the following elements in percentage by mass: 53 to 58.5 percent of Ir, 40 percent of Ta, 0.5 to 2 percent of Y and 1 to 5 percent of Re. The preparation method of the iridium alloy material comprises the following steps: weighing Ir, Ta, Y and Re metal powder in proportion and uniformly mixing; blank pre-pressing treatment is conducted on the evenly-mixed metal powder, the metal powder is die-cast into a block, and a pressed blank is obtained; the pressed blank is smelted through an electric arc smelting method, and an iridium alloy crude product is obtained after smelting is finished; and the smelting is repeated for more than 7 times, so that the pressed blank is uniformly smelted, the content of each component reaches the standard, and the iridium alloy material is prepared. According to the iridium alloy material, through the synergistic effect of multiple elements and the preparation technology, the triple effects of structural distortion strengthening, high-temperature stability and oxidation film integrity are achieved. And due to the high mixed entropy, a similar high-entropy alloy structure is formed, the high-temperature oxidation resistance is remarkably improved, and the alloy is suitable for various ultra-high-temperature environments.

The invention discloses a solder for a copper-clad ceramic substrate. The solder comprises mixed metal powder and an organic carrier, the mixed metal powder is composed of Cu powder, titanium powder, nickel powder and nano CeO2; the organic carrier is prepared from the following components in percentage by weight: 2 to 5 weight percent of organic thickening agent, 3 to 18 weight percent of organic mixed solvent and 0.2 to 3 weight percent of degreasing accelerant; the solder is formed by mixing mixed metal powder and an organic carrier according to the mass ratio of 85: 15-90: 10. An existing soldering paste formula is optimized, the degreasing accelerant is added, the degreasing capacity of the soldering paste is improved, and the porosity after brazing is reduced.

The invention provides a core-shell type rare earth gradient doped positive electrode material and a preparation method and application thereof, and the preparation method comprises the following steps: introducing a mixed metal source solution and a first complexing agent into a mixed solvent, carrying out solvothermal reaction to obtain a core precursor, then continuously heating to a first temperature, introducing a rare earth doped source solution, and carrying out solvothermal reaction to obtain a core precursor; continuously raising the temperature to a second temperature for heat preservation, and finally quenching to obtain a precursor material; and mixing and sintering a lithium source and the precursor material to obtain the core-shell type rare earth gradient doped positive electrode material. According to the preparation method, coprecipitation reaction kinetics and a gradient locking process are synchronously regulated and controlled through a mixed solvent system, composition segregation is avoided, lattice distortion is triggered by adopting a solvothermal system, gradient doping of rare earth elements is induced, the interface mutation defect of a traditional core-shell structure is broken through, and the performance of the core-shell structure is improved. And synchronous improvement of high specific capacity and ultra-long cycle life is realized synergistically.

A process for the production of a mixed metal hydroxide material for use as a cathode active material precursor is described, wherein the process utilizes cavitation to produce high quality materials through elimination of some processing steps and ingredients. In particular, a method of producing a mixed metal hydroxide material combining a first metal, a second metal, an oxidant and a liquid to form a reaction slurry is disclosed. The method may include applying cavitation to the liquid prior to the formation of the reaction slurry and / or applying cavitation to the liquid when the liquid is part of the reaction slurry. A method of forming an active material and a mixed metal hydroxide material for use as an active material precursor is also disclosed.

The invention discloses a metal oxide precursor and a preparation method and application thereof. The precursor comprises a nickel element, a manganese element and an element M, and the element M comprises one or more of cobalt and aluminum. The preparation method comprises the steps that a mixed metal salt solution with the total metal ion concentration being 2-5 mol / L is prepared; spraying the mixed metal salt solution into a high-temperature pyrolyzing furnace in an aerial fog form, and carrying out a spray pyrolysis reaction; roasting the spray pyrolysis product for 1-4 hours in an oxygen-containing atmosphere, wherein the roasting temperature is 500-700 DEG C; dispersing the roasted product in an acidic aqueous solution, carrying out hydrothermal reaction at 150-250 DEG C for 1-6 hours, and carrying out filter pressing and washing until the conductivity of filtrate is less than 50 [mu] S / cm; and drying the washed product, and carrying out air jet pulverization to obtain the metal oxide precursor. During application, the metal oxide precursor and a lithium source are mixed and sintered to prepare the ternary positive electrode material. Impurities are removed through low-temperature roasting-acidic hydrothermal combination, the structure is optimized, and the performance of the positive electrode is improved.

The present invention discloses a preparation method and application of an aluminum-doped lithium battery cathode material precursor. An aluminum salt and one or more of nickel salts, cobalt salts, and manganese salts are dissolved in water to prepare a mixed metal solution, and another aluminum salt is selected to prepare an aluminum-alkali solution using an alkali solution as a solvent. The feeding of the mixed metal solution and the aluminum-alkali solution is controlled at a certain proportion of feeding speed, and the precursor is prepared by a co-precipitation method, which can effectively improve the sphericity of the precursor, make the particle size distribution more uniform and consistent, and is beneficial to improving the electrochemical performance of the cathode material. At the same time, the present invention reduces the formation of small balls during the preparation of the precursor by adding an additive to the bottom liquid of the kettle, which is beneficial to regulating the aspect ratio of the primary particles and improving the sphericity, and at the same time makes the particle size distribution of the precursor more uniform and consistent.

The invention discloses a flux-based preparation method of metal organic gel, which is characterized in that a series of metal organic gel materials are prepared by controlling proportion and temperature by taking ferric salt and any other mixed metal salts and organic ligands as raw materials, and the metal organic gel materials are directly used as an anode catalyst of a methanol fuel cell. The synthesis method is simple, the reproducibility is good, batch production can be achieved, and the prepared metal organic gel has the excellent methanol fuel cell anodic oxidation performance.

The invention relates to the field of battery materials, and discloses a nickel-based single crystal hydroxide precursor, a positive electrode material, a preparation method of the positive electrode material, a positive electrode and a battery. The disclosed precursor is a primary particle, the D50 is 1-5 [mu] m, and the specific surface area is less than 10 m < 2 > / g. The preparation method comprises the following steps: enabling a mixed metal salt solution, an alkali solution and ammonia water to flow into a reaction kettle in parallel, controlling the pH value of the reaction kettle to be 12.5-13.0, maintaining the ammonia concentration to be 1.5-2.5 mol / L, and maintaining for 20-60 minutes; stopping feeding, and keeping for 20 to 60 minutes; circulating the process for 3-10 times; feeding of the mixed metal salt solution is stopped, the pH is adjusted to be 10.5-11.5, the ammonia concentration is adjusted to be 1.5-2.5 mol / L, and all feeding is stopped after the target particle size is reached. The precursor is a true single crystal material and has regular morphology, relatively good size and relatively good dispersity, and the positive electrode material prepared from the precursor has relatively good electrochemical performance.

The present invention provides a powder drop device for metal composite materials, a binder jet printing method, and a metal composite material. [Solution] The powder dropping device for metal composite materials includes a movable powder cylinder, a powder hopper, and a planar moving device. The powder cylinder is provided with at least one powder hopper, which is used to mix two different metal powders. The two different metal powders are mixed in a gradient manner by controlling the powder hopper's feed rate. The powder hopper is provided with a planar moving device for moving the plane of the powder outlet of the powder mixer. The movement of the powder layer is controlled, and the planar moving device changes the position of the powder outlet of the powder mixer, thereby achieving a spatial gradient change of the mixed metal powder. The present invention enables the production of metal composite parts with component gradients and structural gradients for binder jet printing.

The invention discloses a method for preparing a carbon-coated cobalt-cerium composite material by using rapid Joule heat, and belongs to the technical field of catalytic materials and hydrogen production by electrolyzing water. The method comprises the following steps: dissolving a cobalt source and a cerium source in a solvent to obtain a mixed metal salt precursor solution, and then uniformly dipping or dropwise adding the mixed metal salt precursor solution onto a cellulose-based porous carbon source precursor to obtain a supported precursor; and finally, placing the load type precursor at two ends of an electrode of a Joule thermal reaction device, and under a vacuum condition, applying instantaneous current to carry out Joule thermal shock treatment so as to prepare the CoCe-C composite material. The preparation process is extremely simple, the energy consumption is extremely low, expensive precious metal and complex equipment are not needed, the obtained CoCe-C material serves as an anode catalyst to be applied to a hydrazine oxidation auxiliary water electrolysis system, the excellent catalytic activity and stability are shown, the voltage of an electrolytic bath can be remarkably reduced, low-energy-consumption, efficient and safe hydrogen production is achieved, and the method is suitable for industrial production. Wide industrial application prospects are realized.

The invention provides a metal-doped biomass carbon negative electrode material and a preparation method thereof.The preparation method comprises the steps that an acid activating agent is added into biomass powder for soaking, then a pore inducer is added for high-temperature activating treatment, and activated porous carbon is obtained; preparing a mixed metal salt solution, adding the activated porous carbon into the mixed metal salt solution, sequentially stirring and standing, and performing suction filtration and drying to obtain an intermediate; and putting the intermediate into a vapor deposition reaction cavity, heating under the protection of nitrogen, introducing a silicon source gas and a germanium source gas for a deposition reaction, and cooling after the deposition reaction is completed to obtain the metal-doped biomass carbon negative electrode material. According to the process, through collaborative integration of structural design and element functions, the comprehensive electrochemical performance of the metal-doped biomass carbon negative electrode material is remarkably improved, and the problem that a traditional doped material is insufficient in stability and capacity utilization rate is solved.

The invention discloses corrosion-resistant aerogel and a processing technology thereof.The processing technology comprises the following steps that graphene oxide dispersion liquid and a metal organic framework precursor ZIF-67 are mixed, metal salt is cobalt salt, the mass ratio of graphene oxide to metal salt is 1: 0.5-1: 2, and homogeneous sol is formed through ultrasonic treatment. After the composite aerogel is soaked in strong acid HCl with the pH value of 1 and strong alkali NaOH with the pH value of 14 for 7 days, the mass loss rate is smaller than 5%, meanwhile, the porosity is kept to be larger than or equal to 95%, the compressive strength is kept to be larger than or equal to 1.5 MPa, and the industrial problems that traditional aerogel collapses in a structure and degrades in performance in a corrosive medium are solved.

The present invention provides a process for preparing a high-purity nickel sulphate solution, comprising the steps of: i. forming an aqueous mixed metal sulphate solution by reacting sulphuric acid with a raw material feed comprising nickel, manganese, cobalt, and magnesium in an aqueous medium; ii. extracting manganese from said aqueous mixed metal sulphate solution, thereby obtaining a first aqueous raffinate comprising nickel, cobalt and magnesium, and a manganese-rich organic phase; iii. extracting cobalt from said first aqueous raffinate, thereby obtaining a second aqueous raffinate comprising nickel and magnesium, and a cobalt-rich organic phase; and iv. extracting magnesium from said second aqueous raffinate solution, thereby obtaining a high-purity nickel sulphate solution, and a magnesium-rich organic phase.

The invention provides a copper-doped and coated sodium electric precursor as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out first coprecipitation reaction on a mixed metal salt solution, a precipitator solution and a complexing agent solution; the mixed metal salt solution comprises nickel ions, iron ions, manganese ions and copper ions; after the first coprecipitation reaction is finished, the pH value of the system is increased, a copper coating preparation stage is started, a second coprecipitation reaction continues to be carried out, after the second coprecipitation reaction is finished, the mixed metal salt solution is replaced with a copper salt solution, the pH value of the system is reduced, a third coprecipitation reaction continues to be carried out, and the copper-doped and coated sodium electric precursor is obtained. According to the preparation method, micro particles are introduced in the coating preparation stage, Cu < 2 + > is brought into a particle system in the stage that large particles adsorb the micro particles to grow, uniform coating is achieved, and finally the precursor which is uniform in element distribution, uniform in structure distribution, high in tap density, high in specific surface area and free of hardening is obtained.

The invention relates to a process for the production of ethylene by oxidative dehydrogenation (ODH) of ethane, comprising: a) supplying ethane and oxygen to a first ODH zone which is formed by multiple reactor tubes containing a mixed metal oxide ODH catalyst bed; b) contacting the ethane and oxygen with the catalyst resulting in multiple effluent streams, wherein the multiple reactor tubes are cooled by a coolant; c) mixing at least a portion of the multiple effluent streams from step b) resulting in a mixture comprising ethylene, unconverted ethane and unconverted oxygen; d) supplying at least a portion of the mixture from step c) to a second ODH zone containing a mixed metal oxide ODH catalyst bed; e) contacting at least a portion of the mixture from step c) with the catalyst in the second ODH zone resulting in a stream comprising ethylene and unconverted ethane.

The application relates to a sodium-intercalated composite hydroxide and a secondary battery positive electrode material, and a sodium composite hydroxide preparation method which comprises the following steps: S1, mixing water, a complexing agent, a precipitant, an optional additive and a mixed metal solution to perform a coprecipitation crystallization reaction, performing solid-liquid separation after the reaction, and obtaining a hydroxide precursor; S2, adding the hydroxide precursor obtained in S1, a sodium metal solution and an oxidizing agent into a pipeline reactor, wherein the molar ratio of the hydroxide precursor to sodium ions in the sodium metal solution is 10:(0.5-5), the reaction temperature in the pipeline reactor is controlled to be 110-300 DEG C, the reaction pressure is 1.0-10 MPa, the continuous reaction is performed for 0.5-20 hours, the pipeline reactor is discharged after the continuous reaction, the solid-liquid separation is performed on the obtained material liquid, the solid phase is obtained, the solid phase is dried, and a sodium-intercalated composite hydroxide is obtained. The sodium-intercalated composite hydroxide is subjected to heat treatment to form a solid solution, is further calcined to form a secondary battery positive electrode material, and the uniformity, stability and cycle performance of the material are improved.

The well mouth electromagnetic heating device comprises a shell, the shell is of a hollow structure, an insulating layer is fixedly installed on the inner wall of the shell, a spiral electromagnetic induction coil is fixedly installed on the inner wall of the insulating layer, an inner ring of the electromagnetic induction coil is installed on a heat preservation layer in a winding mode, and a heating tank is fixedly installed on the inner wall of the heat preservation layer. The stirring column and the metal rod rotate along with the rotating rod to stir liquid in the heating tank, so that different parts of the liquid are fully mixed, the metal rod generates induction heat under the action of a magnetic field, the heat can be diffused in the liquid more quickly and uniformly, the phenomenon of temperature stratification is avoided, and the heating uniformity is further improved. Cleaning liquid is injected into the first channel of the rotating rod through the connector, the cleaning liquid is sprayed out of the nozzle through the second channel, the sprayed cleaning liquid comprehensively cleans the interior of the heating tank, meanwhile, the scraping plate can scrape the inner wall of the heating tank in the stirring process, and impurities or precipitates in the liquid are prevented from being attached to the inner wall.

In an aspect, a mixed metal oxide comprises or consists essentially of: a mixture comprises or consisting essentially of 0.30 to 0.69 parts by mole Mg, 0.20 to 0.69 parts by mole Zn, 0.01 to 0.30 parts by mole of a third element selected from Al and Ga, and, either, when the third element is Al, 0.00 to 0.31 parts by mole of other elements selected from metals and metalloids, or, when the third element is Ga, 0.00 to 0.15 parts by mole of other elements selected from metals and metalloids, wherein the sum of all parts by mole of Mg, Zn, the third element, and the other elements amounts to 1.00, wherein the amount in parts by mole of the other elements is lower than the amount in parts by mole of Mg and is lower than the amount in parts by mole of Zn; oxygen; and less than 0.01 parts by mole of non-metallic and non-metalloid impurities.

The invention discloses a preparation method of ferromanganese carbonate for a lithium battery, and relates to the technical field of battery materials. The method comprises the following steps: under the protection of an antioxidant and an inert atmosphere, preparing a mixed metal salt solution from manganese salt and ferrous salt, mixing the mixed metal salt solution with a solution containing carbonate ions, carrying out a co-precipitation reaction, and controlling the reaction temperature, the pH value, the dropwise adding rate, the reaction time and the molar ratio of the manganese salt to the ferrous salt; and filtering, washing and drying the obtained product ferromanganese carbonate in sequence to finally obtain the required battery material ferromanganese carbonate. The method for preparing the ferromanganese carbonate is stable, high in yield and convenient for industrial production, and a product which is uniform in morphology, stable in iron-manganese ratio at 4: 6 and uniform in metal ion distribution can be obtained.

The invention relates to the technical field of catalysts, in particular to a transition metal porous nanosheet catalyst for synthesizing deuterated methanol and a preparation method of the transition metal porous nanosheet catalyst. The preparation method comprises the following steps: adding metal nitrate into a mixed solution of water and ethylene glycol, adding a surfactant and urea in the stirring process, and stirring until the metal nitrate is completely dissolved; s2, aging the reaction solution in the step S1 for a period of time, then reacting the reaction solution at 120-160 DEG C for 6-18 hours, washing and drying to obtain a catalyst precursor; and roasting the catalyst precursor for 2-4 hours at the temperature of 200-400 DEG C to obtain a Cu-Ni-Zn-Mg mixed metal oxide. The prepared transition metal porous nanosheet catalyst has excellent activity on synthesis of deuterated methanol through reaction of deuterium gas and carbon monoxide, can inhibit condensation of deuterated methanol and higher alcohol generation reaction, and effectively improves the selectivity of generation of deuterated methanol, and the selectivity reaches 94% or above.