40 results about "Strontium nitrate" patented technology

The invention belongs to the technical field of heating bodies, and particularly relates to a method for preparing a sheet-shaped heating body. The preparation method comprises the following steps: stirring and dissolving lanthanum nitrate, strontium nitrate, manganese nitrate hexahydrate and a solvent to obtain a metal salt solution; preparing the metal salt solution into a precursor, wherein the precursor is a precursor solution or precursor sol; and carrying out tape casting and drying on the precursor to obtain a biscuit sheet, and carrying out glue removal treatment and sintering on the biscuit sheet to obtain the sheet-shaped heating body. According to the preparation method, a precursor system is optimized, the dispersion stability of the precursor is improved, casting, drying and sintering processes are matched, the problem of powder agglomeration is solved, the defects of green bodies are reduced, the drying shrinkage rate of green body pieces in the preparation process is reduced, the surface roughness is reduced, the stability and heat output uniformity of a heating body are improved, and the compactness is improved.

The invention discloses a perovskite type composite metal oxide oxygen carrier catalyst as well as a preparation method and application thereof, and belongs to the field of biomass chemical chain gasification / reforming. The oxygen carrier catalyst is of a La, Fe and Ni co-doped SrTiO3 perovskite structure, and active components Fe and Ni are embedded into a main body SrTiO3 perovskite crystal phase structure in an oxide or simple substance form; the method comprises the following steps: preparing an aqueous solution of lanthanum nitrate, strontium nitrate, nickel nitrate, ferric nitrate and citric acid, adding a mixed solution of tetrabutyl titanate and ethylene glycol into the aqueous solution, heating in a water bath, and stirring to form gel; drying and calcining the gel to obtain intermediate powder; and the intermediate powder is oxidized and reduced to form a high-temperature crystal structure under different atmospheres, and the perovskite type composite metal oxide oxygen carrier catalyst is obtained. The oxygen carrier catalyst provided by the invention has high tar conversion rate and stable cycle activity in the biomass chemical chain gasification / reforming process.

The invention belongs to the field of ferrite materials, and particularly relates to a high-coercivity strontium ferrite with iron partially replaced by aluminum and a preparation method of the high-coercivity strontium ferrite. Aiming at the problem of low coercive force of a ferrite pre-sintering material in the prior art, iron is partially replaced by aluminum, ferric nitrate, strontium nitrate, aluminum nitrate and glucose are used as reaction raw materials, the ratio of the total molar weight of Fe and Al to the molar weight of Sr is (9.5-12): 1, the ratio of the molar weight of Al to the total molar weight of Fe and Al is (0-0.41): 1, and the molar weight of glucose is 0.5-3.5 times of the total molar weight of Fe, Al and Sr; and calcining at 900-1200 DEG C for 1-3 hours by adopting a solution self-combustion-aluminum ion substitution method to prepare the strontium permanent magnetic ferrite powder material with high coercivity.

The invention provides a lead salt modified 5-aminotetrazolyl gas generating agent with low combustion temperature and high combustion rate and a preparation method thereof, the gas generating agent comprises 5-aminotetrazole, strontium nitrate and lead salt, and the mass ratio of the lead salt is 5-10%. According to the invention, the 5-aminotetrazolyl gas generating agent is modified, so that the temperature of the gas generating agent can be reduced, the burning speed can be improved, and the applicability of the gas generating agent as a solid propelling type fire extinguishing device is enhanced.

This invention discloses a method for preparing an electrically pulsed perovskite oxygen evolution reaction (OER) catalyst. The method involves overlapping electrodes on both sides of an SRIO thin film prepared from strontium nitrate, ruthenium oxide, and iridium oxide. Under an argon atmosphere, the SRIO thin film is subjected to a 2-second electrical pulse treatment via an external voltage source, with an electric field strength of 40 V / cm. This invention utilizes ruthenium oxide and iridium oxide powders as ruthenium and iridium sources, making it easier to obtain high-purity SRIO@E catalysts. This provides significant guidance for the synthesis of noble metal-based perovskite materials. Through a simple and easy-to-implement electrical pulse treatment strategy, this invention can remove some oxygen atoms from the catalyst, increasing the number of unpaired electrons available for the catalytic reaction and improving reaction activity. Furthermore, this electrical pulse treatment strategy is simple and controllable, has universal applicability, and is expected to meet the needs of industrial production.

The application provides a method for removing water from industrial-grade dimethyl carbonate by using a hydrophilic molecular sieve; aims to provide a molecular sieve with good water absorption performance and stability, a preparation method with high efficiency, safety, green environmental protection, and a method for preparing the hydrophilic molecular sieve on a large scale; the method comprises the following steps: dispersing potassium hydroxide and aluminum hydroxide into a solvent, adding strontium nitrate and silica sol to obtain a reaction liquid A, moving the reaction liquid A into a polytetrafluoroethylene-lined stainless steel reaction kettle, and reacting at 80-140 DEG C for 20-24 h to obtain a product hydrophilic molecular sieve; then the molecular sieve is soaked in a silver nitrate solution to obtain a silver-modified molecular sieve; and belongs to the technical field of fine chemical industry.

The application discloses an anti-sintering methanol cracking catalyst and a preparation method thereof, and belongs to the field of hydrogen production by methanol cracking catalysis. The anti-sintering methanol cracking catalyst comprises the following raw materials in parts by weight: strontium nitrate 1.8-3 parts, titanium nitrate 6.3-10.5 parts, a Cu active carrier 58-70 parts and polyvinyl alcohol 2-5 parts. The Cu active carrier comprises the following raw materials in parts by weight: copper acetate 12-21 parts and a Zr-HAP-P2O7 carrier 51-60 parts. The Zr-HAP-P2O7 carrier comprises the following raw materials in mole fractions: calcium nitrate 19-22 parts, zirconium nitrate 1.8-2.5 parts, ammonium dihydrogen phosphate 18 parts and sodium pyrophosphate 1.4-1.7 parts. The methanol cracking catalyst provided by the application has strong anti-sintering capacity, can effectively prevent the generation of carbon deposition and prolong the service life of the catalyst.

This invention discloses a color-difference-free, uniformly luminescent concrete and its preparation method. Addressing the problems of easy hydrolysis and sedimentation of luminescent powder in alkaline cement, and the significant reduction in luminescence efficiency due to physical coating, the invention uses white silicate cement, refined quartz sand, uncoated rare-earth-doped strontium aluminate luminescent powder, and rutile titanium dioxide as the base mixed raw materials. During preparation, a multi-component liquid phase containing sodium polyacrylate, sodium gluconate, sodium aluminate, strontium nitrate, polyvinyl alcohol, and sodium tetraborate is added to the slurry in a stepwise manner and stirred. This invention utilizes the interfacial adsorption and local common ion effect of sodium polyacrylate to construct a thermodynamically balanced microenvironment around the luminescent powder, preventing hydrolysis. Simultaneously, the cross-linking of polyvinyl alcohol and sodium tetraborate forms an in-situ transient rheological network to prevent luminescent powder sedimentation. As cement hydration proceeds, the gel automatically disintegrates, and titanium dioxide approaches the luminescent interface, generating light scattering to eliminate color difference. High-brightness, uniform luminescence in concrete can be achieved without physical coating.

An easily-demolded high-insulation low-corrosion condensed aerosol fire extinguishing agent and a preparation method therefor. Strontium nitrate and potassium nitrate are jointly used as an oxidizing

This invention relates to a desensitizing drug for tooth enamel repair and its preparation method, belonging to the field of biomedical technology. The drug comprises a specific ratio of paeonol-dopamine modified chitosan quaternary ammonium salt, enzyme-responsive precursor mineral, polyethylene glycol didopamine modified hydroxyapatite, strontium nitrate, hyaluronic acid-maleimide, L-cysteine, and carbomer. The paeonol-dopamine modified chitosan quaternary ammonium salt is obtained by modifying chitosan quaternary ammonium salt with paeonol and dopamine hydrochloride under tyrosinase catalysis. The enzyme-responsive precursor mineral is obtained by coating nano-calcium pyrophosphate with ε-polylysine. The polyethylene glycol didopamine modified hydroxyapatite is obtained by surface adhesion modification of hydroxyapatite with polyethylene glycol didopamine. This invention yields a restorative desensitizing gel with strong adhesion and enzyme responsiveness. This gel can form a long-lasting protective layer on the tooth surface, simultaneously achieving the triple effects of physical sealing, nerve inhibition, and active mineralization.

The present invention relates to the technical field of anti-icing materials, and in particular to a manganese ferrite magnetic nanoparticle, preparation method and application thereof. The manganese ferrite magnetic nanoparticle prepared by the present invention is LaxCaySrzMnO3, wherein X=0.1-0.7, Y=0.1-0.35, and Z=0-0.16; and is prepared from the following materials, comprising, in parts by weight: 10-70 parts of lanthanum nitrate, 10-35 parts of calcium nitrate, 2-10 parts of strontium nitrate, and 30-50 parts of manganese nitrate.

The invention provides a perovskite-like cathode material, a symmetric cell and a preparation method, and relates to the technical field of fuel cells. The preparation method of the perovskite cathode material comprises the following steps: dissolving bismuth nitrate pentahydrate into deionized water dripped with dilute nitric acid to obtain a first solution; dissolving lanthanum nitrate hexahydrate, strontium nitrate and copper nitrate trihydrate into the first solution to obtain a second solution; adding citric acid and ammonia water dissolved with ethylenediamine tetraacetic acid into the second solution to obtain a third solution; heating the third solution to obtain sol; drying the sol to obtain a cathode precursor; and roasting the cathode precursor to obtain the perovskite-like cathode material. The performance of the perovskite-like cathode material can be improved.

The application provides a self-igniting fire extinguishing agent and application thereof, and has the characteristics that the self-igniting fire extinguishing agent comprises the following raw material components in parts by weight: 50-60 parts of potassium nitrate, 5-10 parts of strontium nitrate, 5-10 parts of 5-amino tetrazole, 5-10 parts of azodicarbonamide, 5-10 parts of dicyandiamide, 5-10 parts of melamine, 5-10 parts of phenolic resin, 5-10 parts of shellac resin, 5-10 parts of potassium bicarbonate, 1-5 parts of nitrocellulose and 1-10 parts of vermiculite powder. The self-igniting fire extinguishing agent is applied to fire extinguishing products such as fire extinguishing ropes and fire extinguishing sheets, and has the characteristics of large fire extinguishing range, fast ignition, low-temperature ignition (about 180 DEG C), complete reaction, low turbidity of fire extinguishing gas, low cost, passive temperature-sensing multiple fire extinguishing and the like.

The application discloses a preparation method of mesoporous strontium titanate material, which comprises the following steps: dissolving amphiphilic block copolymer and tetrabutyl titanate in N,N-dimethylformamide respectively, stirring to obtain solution A; dissolving strontium nitrate in deionized water, stirring to obtain solution B, mixing solution A with solution B, stirring to obtain light yellow transparent colloidal solution C; transferring and evaporating the light yellow transparent colloidal solution C, drying and solidifying to obtain an organic-inorganic composite film, and grinding to obtain a powder; and calcining the powder at 450-650 DEG C under a protective gas and then at 350-500 DEG C under an air atmosphere. The application further discloses the mesoporous strontium titanate obtained by the preparation method and application of the mesoporous strontium titanate in photocatalytic production of H2O2. The application can prepare 40 nm mesoporous strontium titanate material, and has the advantages of simple and convenient preparation method, low cost, and the like. The amount of H2O2 produced by photocatalysis reaches 95.2 muM (1 hour), which breaks through the bottleneck value of the prior art.

The application discloses a lithium-carbon fluoride battery electrolyte and application, and belongs to the technical field of lithium / carbon fluoride primary batteries. The lithium-carbon fluoride battery electrolyte comprises lithium salt, solvent and NO3 ‑ additive; the solvent comprises high dielectric constant solvent, ether solvent and nitrogen heterocyclic crown ether solvent; the NO3 ‑ additive is at least one of lithium nitrate, copper nitrate, ammonium nitrate, potassium nitrate, sodium nitrate, barium nitrate, zinc nitrate, lead nitrate, nickel nitrate, magnesium nitrate, calcium nitrate, strontium nitrate and cesium nitrate; the NO3 ‑ additive has a mass fraction of 5% to 20%. The high-concentration nitrate additive is introduced to form a protective layer on the surface of the lithium metal negative electrode, thereby inhibiting the side reaction of the lithium metal and the solvent and accelerating the Li + transporting effect, thereby reducing the polarization phenomenon during battery discharging; the nitrogen heterocyclic crown ether can promote the dissolution of the high-concentration nitrate and the lithium fluoride of the positive electrode in the battery discharging process, reduce the polarization of the battery and improve the energy density of the battery.

The invention provides a cathode material, a proton ceramic reactor, preparation and application in ammonia synthesis, and the cathode material and the proton ceramic reactor are prepared by the following steps: dissolving raw materials in distilled water under heating and stirring conditions to form a solution; the raw materials comprise strontium nitrate, ferrous nitrate nonahydrate, ammonium heptamolybdate tetrahydrate, ruthenium nitrosyl nitrate, citric acid and glycine; then adjusting the pH value of the solution to 7 + / -0.5 to promote the formation of a complex, and maintaining a heating and stirring state to gradually evaporate water to obtain a gel; and drying and calcining to obtain the cathode material Sr2Fe1. 5Mo0.5-xRuxO6-delta, x is more than 0 and less than 0.1, and delta is the oxygen vacancy content. When the cathode material is applied to a proton ceramic reactor, the catalytic activity of the cathode of the reactor can be remarkably improved, and efficient nitrogen reduction reaction ammonia synthesis under the medium-temperature condition suitable for industrial application is realized.

This invention relates to a compound strontium borate nitrate and a strontium borate nitrate nonlinear optical crystal, as well as their preparation methods and uses. The chemical formula of the compound is Sr3B9O. 16 (NO3), with a molecular weight of 678.16, was prepared using a vacuum-sealed tube method; the chemical formula of this crystal is Sr3B9O. 16 (NO3), with a molecular weight of 678.16, belongs to the monoclinic crystal system and has a space group of Cc The unit cell parameters are a =11.2574(9)Å, b =6.6400(9)Å, c =18.1027(13)Å, Z=4, V=1348.9(2)Å 3 It is prepared using a high-temperature melt method or hydrothermal method under vacuum sealing conditions. Its nonlinear optical effect is approximately three times that of KDP, and its birefringence is 0.088@546 nm. This method has advantages such as simple preparation, short growth cycle, low toxicity of starting materials, and minimal harm to humans. Sr3B9O obtained by the method described in this invention... 16 (NO3) Nonlinear optical crystals have stable physicochemical properties, large nonlinear effects, and can be applied to phase-matching wavelengths in the ultraviolet band. They can be widely used in nonlinear optical devices such as frequency doubling converters and optical parametric oscillators.

The invention discloses a preparation method of a Bi-2212 superconducting film based on a polymer-assisted deposition method, relates to the technical field of semiconductor manufacturing, and solves the problems of poor precursor stability, complex process, long period, high cost, limited component control precision and non-uniform coating in the traditional technology. The preparation method comprises the following steps: preparing a precursor sol by taking bismuth nitrate pentahydrate, strontium nitrate, calcium nitrate tetrahydrate and copper nitrate trihydrate as ion sources, taking ethylenediamine tetraacetic acid as a complexing agent and taking polyethyleneimine as a high-molecular polymer, spin-coating the precursor sol on a LaAlO3 (001) substrate to prepare a sol film, and carrying out multi-stage heat preservation heat treatment and drying to obtain the Bi-2212 superconducting thin film. The Bi-2212 superconducting thin film prepared by the invention has relatively high phase purity and good superconductivity, the stoichiometric ratio of the raw materials can be accurately controlled, the preparation process is simple, the production equipment is less, the efficiency is high, the production cost is low, and the Bi-2212 superconducting thin film has great industrialization potential.

The invention discloses an anti-sintering methanol cracking catalyst and a preparation method thereof, and belongs to the field of methanol cracking catalytic hydrogen production. The anti-sintering methanol cracking catalyst is prepared from the following raw materials in parts by weight: 1.8 to 3 parts of strontium nitrate, 6.3 to 10.5 parts of titanium nitrate, 58 to 70 parts of Cu active carrier and 2 to 5 parts of polyvinyl alcohol, the Cu active carrier is prepared from the following raw materials in parts by weight: 12 to 21 parts of cupric acetate and 51 to 60 parts of Zr-HAP-P2O7 carrier; the Zr-HAP-P2O7 carrier is prepared from the following raw materials in parts by mole: 19 to 22 parts of calcium nitrate, 1.8 to 2.5 parts of zirconium nitrate, 18 parts of ammonium dihydrogen phosphate and 1.4 to 1.7 parts of sodium pyrophosphate. The methanol cracking catalyst provided by the invention has strong anti-sintering capability, can effectively prevent generation of carbon deposition, and prolongs the service life of the catalyst.

The invention provides a high-entropy cathode material, a solid oxide fuel cell and a preparation method, and relates to the technical field of fuel cells. The preparation method comprises the following steps: dissolving praseodymium nitrate, barium acetate, strontium nitrate, lanthanum nitrate, calcium acetate, neodymium nitrate and cobalt nitrate in deionized water to obtain a first solution; adding citrate and a chelating agent into the first solution to obtain a second solution; adjusting the pH value of the second solution to 7-10 by using ammonia water to obtain a third solution; heating and stirring the third solution to obtain a gelatinous mixture; and drying, grinding and sintering the gelatinous mixture to obtain the high-entropy cathode material for the solid oxide fuel cell. According to the invention, the electrochemical performance of the cathode material for the solid oxide fuel cell can be improved.

The application discloses a strontium-doped inorganic nanofiber composite 3D printing scaffold for bone defect repair and a preparation method thereof, and belongs to the field of bone defect repair biomaterials. The preparation method comprises the following steps: dissolving strontium nitrate in a mixed solution of tetraethyl orthosilicate, phosphoric acid and deionized water, stirring and mixing the obtained SiO2-SrO sol with a PVA solution, electrospinning, high-temperature calcination, obtaining a SiO2-SrO nanofiber membrane, cutting small pieces, high-speed stirring and dispersing, adding deionized water, high-speed homogenizing, freeze-drying, mixing with deionized water, grinding and freeze-drying, obtaining SiO2-SrO nanofiber as a dispersed phase, magnetically stirring and uniformly mixing CS solution and HA solution as a continuous phase, fully mixing and uniformly mixing to obtain a biological ink, and then 3D printing, freeze-drying and ultraviolet sterilization of the obtained scaffold, and immersion in a crosslinking agent solution for crosslinking reaction. The application realizes macroscopic and microscopic double-layer repair functions of the scaffold by combining electrospinning with 3D printing, and is used for bone defect repair.

This invention belongs to the field of heating element technology, specifically relating to a method for preparing sheet-like heating elements. The preparation steps include: dissolving lanthanum nitrate, strontium nitrate, manganese nitrate hexahydrate, and a solvent by stirring to obtain a metal salt solution; preparing a precursor from the metal salt solution, which may be a precursor solution or a precursor sol; casting the precursor into a sheet, drying it to obtain a green sheet; removing the binder from the green sheet; and sintering it to obtain the sheet-like heating element. This invention optimizes the precursor system, improves the dispersion stability of the precursor, and, combined with the casting, drying, and sintering processes, solves the problem of powder agglomeration, reduces defects in the green sheet, decreases the drying shrinkage rate and surface roughness of the green sheet during the preparation process, and improves the stability, heat output uniformity, and density of the heating element.

The invention discloses a broadband wave-absorbing composite material and a preparation method thereof, and particularly relates to the field of wave-absorbing materials. Comprising the following steps: preparing xanthan gum powder into a gel solution; the preparation method comprises the following steps: mixing lanthanum nitrate, strontium nitrate hexahydrate, cobalt nitrate hexahydrate, ferric nitrate nonahydrate and manganese chloride tetrahydrate in a solvent to obtain a metal salt precursor solution; mixing the gel solution with a metal salt precursor solution to obtain a mixed solution; injecting the mixed solution into a pre-freezing medium for pre-freezing to obtain pre-frozen particles; performing freeze drying on the pre-frozen particles to obtain a freeze-dried sample; and pyrolyzing the freeze-dried sample in an Ar atmosphere to obtain the wave-absorbing composite material. Through the method, the wave-absorbing composite material with low reflection loss and wide frequency band can be obtained.

The application provides a lubricating oil curing agent and a gel lubricant, a preparation method thereof and application in bearings, and relates to the technical field of lubricating materials.The lubricating oil curing agent provided by the application is prepared from raw materials including fatty acids, organic small-molecule compounds, nitrate, phosphomolybdate and water; the fatty acids include linoleic acid and / or linolenic acid, the organic small-molecule compounds include 1-octadecene and / or n-octane, and the nitrate includes one or more of strontium nitrate, iron nitrate and zirconium nitrate. The lubricating oil curing agent is added into lubricating oil, and a gel lubricant with low cost and excellent lubricating performance can be prepared by very simple operation, and batch preparation of the gel lubricant is realized. When the gel lubricant is used in bearing gears, under the conditions of high load and high-speed rotation, the gel lubricant can not only achieve good friction-reducing and wear-resisting effects, but also prevent the influence of lubricating oil flow and leakage on machines.

An easily-demolded high-insulation low-corrosion condensed aerosol fire extinguishing agent and a preparation method therefor. Strontium nitrate and potassium nitrate are jointly used as an oxidizing

The invention discloses a photo-thermal coupling carbon dioxide conversion material and a preparation method and application thereof.The preparation method comprises the following steps that citric acid monohydrate, samarium nitrate hexahydrate, strontium nitrate and manganese acetate tetrahydrate are taken and added into deionized water in sequence; magnetically stirring to form wet gel; drying the wet gel to form dry gel; taking out the dry gel, and grinding; and heating the obtained product to 1300-1500 DEG C, calcining, cooling to room temperature, and grinding again. The molecular formula of the photo-thermal coupling carbon dioxide conversion material is Sm < 1-x > Sr < x > MnO < 3 >, wherein x is 0-0.8. The photo-thermal coupling carbon dioxide conversion material is applied to a photo-thermal coupling carbon dioxide composite catalyst. The composite catalyst prepared by the invention has good spectral absorption characteristic, can improve the capture capability of the catalyst on solar photons, and has very stable catalytic activity and good cycle stability.

The application relates to the field of gas fire extinguishing of fire-fighting equipment, and discloses a low-temperature and low-corrosion hot aerosol fire extinguishing medium, a preparation method and application thereof. The hot aerosol fire extinguishing medium comprises an oxidant and modified aluminum hydroxide, the oxidant is a mixture of strontium nitrate, potassium organic acid and chlorate, the content of silane groups in the modified aluminum hydroxide is 10-30 wt%, and the weight ratio of the oxidant to the modified aluminum hydroxide is 1:0.01-0.5. The hot aerosol fire extinguishing medium is stable in performance during combustion, can effectively reduce the combustion temperature, significantly improve the fire extinguishing efficiency, and simultaneously reduce the corrosiveness to electrical equipment.

The invention relates to the technical field of casting powder, in particular to special casting powder for 904 super austenite, which comprises calcium oxide, silicon dioxide, aluminum oxide, sodium oxide, calcium fluoride, boric oxide, a SrO-CeO2-ZrO2 compound, an Al-C composition and sodium carboxymethyl cellulose. The SrO-CeO2-ZrO2 compound is prepared from cerous nitrate, zirconyl nitrate and strontium nitrate; according to the present invention, the SrO-CeO2-ZrO2 compound is adopted, the Al-C composition comprises aluminum powder and acetylene, the SrO-CeO2-ZrO2 compound and the Al-C composition are adopted, the unique oxygen vacancy characteristic of the SrO-CeO2-ZrO2 compound is utilized to enhance the Cr2O3 adsorption and decomposition ability, and the Al-C composition provides the reduction environment so as to effectively solve the slag layer failure problem caused by Cr2O3 active oxide inclusion in the continuous casting process of the high Cr, Ni and Mo alloy steel liquid.

The application discloses a perovskite structure composite coating and a preparation method and application thereof, and the chemical structural formula of the composite coating is Sr 1+ω (Zr x A y B 1‑x‑y )O 3+δ / Re n O m ; A elements and B elements are respectively one of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc or Y, and the A elements and the B elements are different; the Re element is Al, La, Zr or Y; the preparation method comprises the following steps: dissolving strontium nitrate, zirconium nitrate or zirconium acetate, a nitrate salt of the A element and a nitrate salt of the B element in water, adding metal oxide particles of the Re element and a dispersing agent, adding ball milling beads for ball milling, and obtaining a spraying raw material; the spraying raw material is sprayed onto a base body by adopting a solution plasma spraying process, so that the composite coating is obtained; and the coating can be used on the surface of a high-temperature alloy material in a high-temperature working environment to play a heat insulation and cooling role.

The present invention relates to the technical field of anti-icing materials, and in particular to a manganese ferrite magnetic nanoparticle, preparation method and application thereof. The manganese ferrite magnetic nanoparticle prepared by the present invention is LaxCaySrzMnO3, wherein X=0.1-0.7, Y=0.1-0.35, and Z=0-0.16; and is prepared from the following materials, comprising, in parts by weight: 10-70 parts of lanthanum nitrate, 10-35 parts of calcium nitrate, 2-10 parts of strontium nitrate, and 30-50 parts of manganese nitrate.