1031 results about "Metal hydroxide" patented technology

The invention discloses crack-chloride ion double-triggered subsea tunnel corrosion-resistant concrete and a preparation method thereof, and relates to the field of subsea tunnel engineering materials. The concrete is prepared from the following components in parts by weight: 400 to 500 parts of Portland cement, 50 to 80 parts of fly ash, 60 to 100 parts of superfine mineral powder, 1000 to 1100 parts of coarse aggregate, 700 to 800 parts of fine aggregate, 140 to 160 parts of water, 10 to 20 parts of self-repairing microcapsules and 1 to 5 parts of a water reducing agent, the self-repairing microcapsule comprises a capsule wall material, a self-repairing material and a layered dihydroxyl composite metal oxide. A crack-chloride ion double-response system is constructed, and the limitation of traditional single trigger repair is broken through. When a crack with a certain width appears in the concrete, the capsule wall of the self-repairing microcapsule is broken to release the repairing component, so that effective filling of the crack is realized; and meanwhile, the layered double-metal hydroxide can directionally adsorb chloride ions to form a stable compound, so that the migration rate of the chloride ions is remarkably reduced.

The invention discloses a positive electrode material of an upward flow type electrochemical dephosphorization system, and the preparation method comprises the following steps: preparing a polyaniline-coated ZIF-8 derived carbon loaded magnesium-aluminum double-metal hydroxide electrode material, and the preparation process comprises ZIF-8 carbonization in a nitrogen atmosphere, aniline oxidation polymerization, and loading of magnesium-aluminum double-metal hydroxide by a coprecipitation method; the electro-adsorption positive electrode material belongs to a polyaniline magnesium aluminum double-metal hydroxide mesoporous synergistic platform in ZIF-8 derived carbon, and has a nano frame with strong pore accessibility and high electrochemical activity; the synergistic process comprises attraction of polyaniline to phosphate ions and trapping of the magnesium-aluminum double-metal hydroxide. The electrode prepared by the method has a unique mesoporous framework, a large number of phosphorus removal sites are obtained on the surface of the electrode, a rapid ion storage behavior mainly based on a capacitance control process is realized on a solid-liquid interface, phosphate in water can be effectively separated in an electro-adsorption system, and the method is a pollution control process with a clear mechanism.

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 PPy / NiCo-LDH / NF composite material and a preparation method and application thereof, and belongs to the technical field of electrocatalyst preparation. The PPy / NiCo-LDH / NF composite material provided by the invention comprises a foamed nickel substrate as well as NiCo layered double hydroxides and polypyrrole which are compounded on the foamed nickel substrate, the polypyrrole is compounded on the surface of the NiCo layered double-metal hydroxide. The surface of NiCo layered double hydroxides is induced and modified by polypyrrole, so that the layered double hydroxides are arranged more regularly and densely, efficient mass transfer of electrons is facilitated, an electron transfer interface can be induced, the composite material exposes more catalytic active sites, the electron interaction is enhanced, and the catalytic activity of the composite material is improved. According to the present invention, with the preparation method, the excellent electrocatalytic activity is provided for the HER and the OER in the alkaline medium, and the excellent cycle stability is provided for the HER and the OER in the alkaline medium after the 1000 times of cycle, such that the wide application prospect in the electrocatalytic reaction is provided.

The invention provides a NiCo double hydroxide self-supporting nano-catalyst as well as a preparation method and application thereof, and belongs to the field of nano composite materials. The preparation method of the NiCo double hydroxide self-supporting nano-catalyst is characterized by comprising the following steps: firstly, adding cobalt salt and nickel salt into a solvent, performing ultrasonic treatment to completely dissolve the two metal salts to obtain a metal salt solution, and then assembling a working electrode, a counter electrode and a reference electrode in the metal salt solution to obtain a three-electrode device, and finally, adjusting corresponding parameters in an electrochemical workstation, and carrying out a self-supporting deposition experiment of Ni and Co double-metal hydroxides on the three-electrode device in the electrochemical workstation to obtain the NiCo double-metal hydroxide self-supporting nano-catalyst material with a typical scaly structure and excellent performance. According to the preparation method of the NiCo double-metal hydroxide self-supporting nano-catalyst material, product treatment is convenient and fast, and the process is simple.

To provide a novel production technique of hydrogen which uses biological resources-derived matters such as an organic compound and plant biomass as raw materials.SOLUTION: A solid-containing mixture formed by mixing a solid or liquid first organic raw material made of an organic compound, and a second solid raw material made of solid alkali metal hydroxide is held at a prescribed temperature of 20°C to 300°C to generate hydrogen from the solid-containing mixture. A solid state mixture formed by mixing a first solid raw material derived from plant biomass or microorganism, and a second solid raw material made of solid alkali metal hydroxide is held at a prescribed temperature of 20°C to 300°C to generate hydrogen from the solid state mixture. Woody biomass is exemplified as the plant biomass. Wood fragments, wood chips, saw dust, wood flour, cellulose, lignin sulfonic acid or a salt thereof, and glucose are exemplified as the first solid raw material. Sodium hydroxide and potassium hydroxide are exemplified as the alkali metal hydroxide.SELECTED DRAWING: None

A free-flowing solid activator for a geopolymer mortar or concrete comprises or consists of an alkali(ne) metal carbonate surface treated with a sub-stoichiometric amount of alkali(ne) metal hydroxide. In one embodiment a method for producing an activated fly ash comprises: a) spraying an aqueous alkali(ne) metal silicate onto the surface of a solid particulate fly ash; b) drying the spray-treated product of step a); c) optionally grinding the dried product of step b); and optionally, repeating the spray treatment process for the product of step b) or step c) by returning the product of step b) or step c) to step a).

The invention relates to an elementary substance / alloy-metal oxyhydroxide anchored noble metal single atom / cluster heterojunction catalyst. A preparation method comprises the following steps: 1) dissolving a metal salt A, urea and ammonium fluoride in deionized water to obtain a mixed solution B; 2) performing hydrothermal reaction on the mixed solution B and a carrier to obtain a primary sample 1; 3) performing high-temperature calcination on the primary sample 1 in a mixed atmosphere of hydrogen and argon to obtain a primary sample 2; and 4) putting the preliminary sample 2 into a noble metal compound C solution for vacuum impregnation, taking out the sample after impregnation, and drying to obtain the catalyst. According to the scheme, the metal salt A is used as a metal source of a simple substance / alloy, the metal salt A is subjected to hydro-thermal synthesis to form a metal hydroxide and then subjected to high-temperature calcination reduction, the metal salt A is calcined to form the simple substance / alloy, then the simple substance / alloy is soaked in the precious metal compound solution C to form a metal oxyhydroxide, and meanwhile precious metal single atoms / clusters are anchored; the prepared catalyst is high in activity, and the preparation method is simple.

The invention discloses a selective exchange film sealing concentrated solution based on layered double hydroxides. The selective exchange film sealing concentrated solution comprises divalent metal ions, a corrosion inhibitor, a pH buffering agent and a wetting agent. The invention also discloses a preparation method and application of the compound. The closed thin film obtained based on the layered double-metal hydroxide selective exchange thin film closed concentrated solution has excellent compactness, double protection on the aluminum alloy anode oxide film is achieved through selective exchange of interlayer anions of the closed thin film, and the corrosion resistance of the aluminum alloy anode oxide film is improved and enhanced; and on the premise that the aluminum alloy anode oxide film is protected from being corroded, the alkali resistance of the aluminum alloy anode oxide film is improved and enhanced, and the color fixing performance of the dye is achieved.

The invention provides a modified biochar and ferromanganese double-metal hydroxide composite material and a preparation method thereof, and relates to the technical field of adsorption materials.The preparation method comprises the steps that straw is subjected to pyrolysis treatment, and biochar is obtained; and then loading the ferromanganese bimetal hydroxide on the surface of the biochar by using a chemical method. The preparation process comprises a plurality of steps of mixing, stirring, precipitating, washing, drying and the like, so that the ferromanganese double-metal hydroxide can be uniformly and firmly attached to the biochar; according to the scheme, the adsorption performance of the biochar (BC) and the catalytic performance of the ferromanganese bimetal hydroxide (MnFe-LDH) are combined, and the high removal efficiency on heavy metal ions and organic pollutants is achieved. In addition, the composite material also has good stability and renewability, and is beneficial to reducing the wastewater treatment cost and improving the treatment efficiency.

The present invention discloses a layered metal hydroxide composite catalytic material, its preparation method and application. The composite catalytic material comprises a carrier carbon nanotube and a metal hydroxide loaded on the carbon nanotube, and the metal is iron, cobalt and nickel. Preparation method: (1) Dissolve nickel salt, cobalt salt, iron salt and urea in an alcohol solution, stir evenly, then add carbon nanotubes, and continue to stir evenly to obtain a mixed solution; (2) Carry out a solvothermal synthesis reaction on the mixed solution obtained in step (1), filter, wash and dry after the reaction is completed to obtain the layered metal hydroxide composite catalytic material. The carbon nanotubes are introduced into the layered metal hydroxide in this composite catalytic material, reducing the precipitation of metal ions, avoiding the aggregation of hydroxides, improving the stability and catalytic activity of the catalytic material, and being used for activating persulfate to degrade organic pollutants, realizing the efficient activation of persulfate so as to improve the degradation rate of pollutants.

The invention discloses a method for preparing cyclohexylamine based on reductive amination of cyclohexanone, and belongs to the technical field of fine chemical engineering. The preparation method comprises the following steps: adding a reactant cyclohexanone into a reaction kettle containing a certain amount of solvent, ammonia water and hydrogen atmosphere, and carrying out reductive amination reaction in the presence of a catalyst to obtain cyclohexylamine. The catalyst is CoyAl-LDHs loaded with metal active components, the CoyAl-LDHs are layered cobalt-aluminum bimetal hydroxides, and cobalt ions and precious metal ions in laminates are subjected to spontaneous oxidation-reduction reaction, so that the precious metal ions can be efficiently reduced into active metal nanoparticles. The layered cobalt-aluminum double-metal hydroxide not only has abundant surface acid-base sites, but also has high dispersity of loaded metal nanoparticles. The catalyst preparation and reductive amination reaction conditions are mild, the yield is high, the reaction system is simple and easy to separate, and the method is suitable for industrial production of cyclohexylamine.

An adsorbent composition comprising: a plurality of particles of an acid-activated clay with a predetermined particle size. Each particle may have a surface comprising metal oxides or metal hydroxides and each particle may have a surface modified by coupling the metal oxides to ligands comprising amino-silane coupling agents configured to adsorb impurities. Each amino-silane coupling agents may comprise an alkoxysilane group and an amine group. The alkoxysilane group may couple to the metal oxide or metal peroxide of each particle. The adsorbent composition may comprise the amino-silane coupling agent and the acid-activated clay with a wight ratio between 2:2 and 3:1 (the acid-activated clay: the amino-silane coupling agent). The acid-activated clay may comprise a plurality of pore with a predetermined diameter formed between particles.

The invention discloses electronic-grade amine epoxy resin and a preparation method thereof, and belongs to the field of epoxy resin preparation. Aiming at the problems of more by-products and poor performance of the existing epoxy resin preparation, the invention provides the preparation method of the electronic-grade amine epoxy resin, which comprises the following steps: synthesizing a chlorohydrin ether intermediate from p-aminophenol and epichlorohydrin; meanwhile, a catalyst is added in the ring-opening reaction stage; carrying out removal of epoxy chloropropane; alkali metal hydroxide is added for a dehydrochlorination reaction, and a target product is generated in a closed-loop manner; and washing to remove excessive alkali metal hydroxides, and reacting to generate chlorides to obtain the electronic-grade amine epoxy resin. According to the method, the ring opening speed of phenolic hydroxyl is remarkably increased through the catalyst, so that epoxy chloropropane is fully reacted, and residues are reduced; according to the method, excessive epoxy chloropropane is removed, so that side reaction of epoxy chloropropane in a ring closing stage is avoided, generation of by-products is reduced to the greatest extent, operation is simple, and high-quality epoxy resin can be generated.

The present invention relates to a polymer powder for the manufacture of articles by 3D printing, in particular by sintering, comprising a thermoplastic polymer, antioxidants, and a particular metal oxide, metal hydroxide and / or hydrotalcite, having improved thermal stability, improved recyclability and improved consistency of mechanical properties of the sintered parts.The invention also relates to a process for preparing this powder and to the use thereof in a process for manufacturing by sintering, and to the articles manufactured from said powder.

The invention relates to a preparation method and application of a hollow nanorod array oxygen evolution electrode, and belongs to the field of hydrogen production by alkaline electrolysis of water. The self-supporting nickel-iron double-metal hydroxide nanosheet coated cobalt hydroxide hollow nanorod array oxygen evolution electrode is obtained through a continuous electro-deposition method; foamed nickel is used as a substrate, and catalytic active components loaded on the substrate are cobalt hydroxide and ferro-nickel double-metal hydroxide; a hollow nanorod structure vertically grows on the surface of the foamed nickel substrate, and the hollow nanorod structure comprises a hollow nanorod-shaped cobalt hydroxide layer located in the hollow nanorod structure and a plurality of layers of nickel-iron double-metal hydroxide nanosheets wrapping the surface of the hollow nanorod-shaped cobalt hydroxide layer; the diameter of the hollow nanorod is 0.2-1 micron, and the length of the hollow nanorod is 2-3 The electrode provided by the invention has unique morphology and good oxygen evolution catalytic activity.

The invention belongs to the technical field of catalysts, and particularly relates to a ruthenium-based supported catalyst as well as a preparation method and application thereof. The ruthenium-based supported catalyst provided by the invention comprises a composite carrier and ruthenium supported on the composite carrier, the composite carrier is one or more of a perovskite type metal oxide and an alkali metal oxide, an alkali metal hydroxide, an alkaline earth metal oxide and an alkaline earth metal hydroxide which are dispersed on the surface of the perovskite type metal oxide; the preparation method of the composite carrier comprises the following steps: mixing a perovskite type oxide with an alkali metal hydride and / or an alkaline earth metal hydride, and carrying out first calcination; soaking the first calcined product in a solvent to obtain a composite carrier; the perovskite type oxide comprises one or two of MgTiO3 (magnesium titanate), SrTiO5 (strontium titanate), BaTiO3 (barium titanate) and CaTiO3 (calcium titanate); the solvent comprises an alcohol solvent and / or water. The catalyst provided by the invention can catalyze an ammonia synthesis reaction under a relatively low pressure.

The present application relates to the field of carbon capture. Embodiments of the present application provide systems, devices, and methods relating to metal hydroxide looping for capturing atmospheric carbon dioxide. Related systems for the electrolytic production of acids and bases for chemical processing and for materials handling are also described.

The invention belongs to the technical field of energy storage materials, and particularly relates to a phase change energy storage material and a preparation method thereof.The phase change energy storage material is prepared from 8-12 parts of phase change wax, 10-15 parts of ZnAl-LDH, 6-9 parts of SiC-CuS and 8 parts of polyethylene glycol dimethyl ether; according to the invention, the double-metal hydroxide and the phase-change wax are combined, interlayer water molecules and ionic bonds of the double-metal hydroxide can realize reversible phase change, the phase-change wax can be supported to reduce high-temperature flowing, the phase-change wax makes up for insufficient latent heat and improves energy storage capacity, and the combination of the double-metal hydroxide and the phase-change wax widens the phase-change temperature range and enhances cycle stability; in addition, Si-C loaded CuS nanosheets are introduced, energy can be transmitted under illumination or heat energy to assist storage, the smaller the size of the nanosheets is, the larger the specific surface area is, more active sites can be provided, the heat conduction efficiency is improved, complementation of all advantages of the material is achieved through a simple method, and good comprehensive performance is achieved.

The invention discloses an application of a conductive metal oxide coated silicon carbon material and a preparation method thereof in a lithium ion battery, and belongs to the technical field of lithium ion battery materials. The conductive metal oxide coated silicon-carbon material is obtained by annealing, calcining and dehydrating a metal hydroxide coated silicon-carbon material in a protective atmosphere; the precursor for in-situ synthesis of the metal oxide on the surface of the silicon-carbon material is prepared from the silicon-carbon material and an inorganic solution containing metal ions through room-temperature stirring, ultrasonic treatment, hydrothermal reaction or reflux, suction filtration, washing and drying. The conductive metal oxide coated silicon carbon material can be used as a lithium ion battery negative electrode material, is applied to the high-power and high-energy-density fields of power batteries and the like, and has high specific capacity, high first efficiency and excellent long cycle performance.

The invention provides a polymer additive as well as a preparation method and application thereof, and the preparation method comprises the following steps: carrying out free radical reaction on a hypophosphorous acid aqueous solution and an antioxidant with ethylene under the action of an initiator to obtain a diethyl hypophosphorous acid aqueous solution; the diethyl phosphinic acid aqueous solution, sulfuric acid and metal hydroxide are subjected to a reaction, then alkali liquor is added, and diethyl phosphinate slurry with the pH value being 3.8-4.2 is obtained; mixing and stirring the diethyl hypophosphite slurry and a flocculating agent to obtain diethyl hypophosphite flocculate, and then filtering, washing and drying to obtain the polymer additive. Through the design of the preparation method, the polymer additive with a low acid value can be obtained, and when the polymer additive is used as a flame retardant to prepare a polymer material, the precipitation of an auxiliary agent in a high-temperature processing process can be inhibited, and mold scale can be reduced, so that the prepared polymer composition has relatively low content of water boiling precipitates, and the service life of the polymer composition under damp and hot conditions is prolonged.

The invention discloses a sewage treatment process for organic wastewater, and belongs to the field of sewage treatment.The sewage treatment process comprises the following steps that S1, wastewater containing nitrogen-containing organic phosphonic acid metal complexes is pumped into a dielectric barrier discharge reactor, and P-C bond energy is reduced through high-energy electron bombardment; s2, adding a modified layered metal hydroxide containing interlayer co-intercalation carbon quantum dots and persulfate and a composite oxidant of aspergillus niger immobilized microspheres into the wastewater subjected to plasma treatment; s3, deeply adsorbing heavy metal ions in the wastewater subjected to composite oxidation treatment in a gradient magnetic field by utilizing a magnetic layered metal hydroxide material; s4, the wastewater subjected to magnetic adsorption sequentially passes through an anaerobic ammonia oxidation coupling reactor and an aerobic biological membrane-activated sludge system to degrade pollutants; s5, dephosphorizing the wastewater subjected to biological treatment by algae by adopting a layered immobilized phycomycete symbiotic system; and S6, tail end magnetic recovery and effluent disinfection. The invention aims to solve the problems of low decomplexing efficiency and halfway decomplexing in the prior art.

The invention relates to a magnetic calcium-iron layered double-metal hydroxide catalyst as well as preparation and application thereof. The catalyst is characterized in that the catalyst is composed of a carrier and layered double hydroxides, the layered double hydroxides are calcium-iron layered double hydroxides, and the carrier is magnetic copper ferrite CuFe2O4; wherein the loading mass percentage of Ca element in the catalyst is 8-16%, and the molar ratio of Ca < 3 + > to Fe < 2 + > is (2-4): 1. Through a specific hydrothermal synthesis method, the catalyst capable of effectively activating PMS to efficiently degrade sulfamethoxazole (SMX) in water is prepared. The preparation process of the catalyst comprises synthesis of copper and iron oxides and subsequent combination of calcium and iron layered double hydroxides, the process not only improves the catalytic efficiency, but also optimizes recovery and recycling of the catalyst through introduction of a magnetic material.

The invention discloses an environment-friendly halogen-free flame-retardant composite special cable, and belongs to the technical field of cable preparation, the special cable sequentially comprises a conductor, an insulating layer, a glass fiber rope layer and an outer protective sleeve from inside to outside, and the insulating layer and the outer protective sleeve are prepared from a modified flame-retardant copolymer. The modified flame-retardant copolymer is prepared from the following raw materials in parts by weight: 65 to 80 parts of linear low-density polyethylene, 20 to 38 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of modified P-N-Si flame retardant 1, 3 to 6 parts of modified P-N-Si flame retardant 2, 0.5 to 1 part of initiator, 0.2 to 0.5 part of antioxidant and 25 to 35 parts of non-reactive flame retardant through melt copolymerization; a polyfunctional and rigid organic modified P-N-Si flame retardant is grafted, so that the migration of the flame retardant is reduced, the crosslinking degree is increased, and the mechanical and high-temperature-resistant properties are improved; the organic P-N-Si, the inorganic non-reactive flame retardant metal hydroxide and the nano inorganic particles have a synergistic effect, so that the cable is endowed with high flame retardance.

The invention provides a lime-sand polymerized building material for inhibiting saltpetering and a preparation method thereof, and belongs to the technical field of novel building materials, the material comprises a composite matrix material, a composite alkali activator, a slow-release organic acid microcapsule, a modified layered double-metal hydroxide and an saltpetering inhibiting auxiliary agent; the composite base material is formed by compounding fly ash and slag; the composite alkali activator is compounded by water glass and a NaOH aqueous solution; the slow-release organic acid microcapsule is prepared by coating a compound acid formed by mixing citric acid and tartaric acid with hydroxypropyl-beta-cyclodextrin and sodium alginate; the modified layered double hydroxide is prepared by calcining MgAl-LDH, then carrying out surface modification by a silane coupling agent, and then loading nano SiO2; the saltpetering inhibition auxiliary agent is compounded by phytic acid modified lignin microcapsules and thermal response carbonate; the phytic acid modified lignin microcapsule is prepared by modifying sodium lignin sulfonate with phytic acid and then coating with ethyl cellulose and polyvinyl alcohol; the thermal response carbonate is prepared by coating calcium carbonate with stearic acid.

The invention relates to the technical field of hydrometallurgy, in particular to a method for selectively separating calcium sulfate in a complex reaction system. The method comprises the following steps: adding a soluble sulfate solution and a precipitant solution into a base solution in a parallel flow manner, and reacting to obtain mixed slurry containing fibrous calcium sulfate; and separating the mixed slurry containing fibrous calcium sulfate to obtain fibrous calcium sulfate crystals, metal hydroxides and purified liquid. According to the method, on the basis of wastewater treatment through a traditional precipitation method, fibrous calcium sulfate is separated from other substances in a complex system by controlling growth of calcium sulfate crystals, the environmental influence caused by solid waste is reduced while the industrial wastewater containing sulfate radicals is treated at low cost, and finally resourceful treatment of the industrial wastewater is achieved.

The invention discloses a multi-metal layered hydroxide catalytic material and a preparation method and application thereof, and belongs to the technical field of catalytic materials.The preparation method of the multi-metal layered hydroxide catalytic material comprises the following steps that a one-pot solvothermal method is adopted, foamed nickel is soaked in a mixed solution for hydro-thermal synthesis, and the multi-metal layered hydroxide catalytic material is obtained; the multi-metal layered hydroxide catalytic material is prepared; wherein the mixed solution comprises a surfactant, a solvent and at least two of a nickel source, an iron source and a cobalt source. The CO2 desorption rate of the MEA solution is jointly improved through the synergistic effect of multiple metals and the # imgabs0 # acid site provided by the periphery of the metal hydroxide main layer. Under the condition that the desorption temperature (oil bath pan temperature) is 120 DEG C, the highest CO2 desorption rate of the FeCo (1 / 5) material with the best catalytic effect is increased to 7.68 mmol / min, and compared with 4.78 mmol / min under the blank condition, the desorption rate of the FeCo (1 / 5) material is increased by 60.7%, and the CO2 desorption rate is remarkably increased.

The invention provides a phosphate adsorption material and a preparation method thereof. The phosphate adsorbent material comprises: an inner core containing one of a metal compound and a metal silicate; an outer shell for covering the inner core, the outer shell comprising a composite metal oxide or a composite metal hydroxide; the inner core and the outer shell jointly form the phosphate adsorption material with the core-shell structure, the porous framework is of a monolithic integral structure, and the phosphate adsorption material with the core-shell structure is embedded in the porous framework. The adsorption material disclosed by the invention can be used for deeply removing phosphate in water pollution treatment.

The invention discloses a highly efficient heat-conductive new energy vehicle coolant and a preparation method thereof, wherein the components include a base liquid having a mass volume ratio of 500-1000 mL: 2-10 mL: 0.03-0.5 g: 5-10 g: 5-10 g: 0.02-0.1 g: 1-10 g, a suspension of silane-modified nano-alumina having a mass concentration of 1-5%, a defoamer, a corrosion inhibitor, a rust inhibitor, a scale inhibitor and an inhibitory additive, and the pH of the coolant is regulated to 7.5-8.5 by an alkali metal hydroxide. The formula system of the coolant of the present invention achieves the advantages of high thermal conductivity and good metal corrosion resistance based on the synergistic effect of each component, and can be used in the fields of new energy vehicles, energy storage power stations, etc. Therefore, it has a good prospect for application and promotion.

The invention belongs to the technical field of electrode materials, and particularly discloses a self-supporting electrolyzed water catalytic electrode material, a preparation method and application thereof, the self-supporting electrolyzed water catalytic electrode material comprises a foamed nickel-molybdenum alloy as a substrate, and the surface of the foamed nickel-molybdenum alloy is covered with a two-dimensional layered nickel-iron metal hydroxide. The nickel-molybdenum alloy self-supporting nickel-iron double-metal hydroxide obtained by the technology is used as a bifunctional catalyst for hydrogen evolution and oxygen evolution reaction in a non-acidic medium. The foamed nickel-molybdenum alloy is used as a raw material of a current collector and a catalytic active site at the same time, a fresh crystal nucleus is formed on the surface of the foamed nickel-molybdenum alloy through one-step ferric ion etching, then the foamed nickel-molybdenum alloy is placed in air, and the catalytic activity of the nickel-molybdenum alloy is improved under the combined action of water and oxygen. The nickel element from the foamed nickel-molybdenum alloy and the adsorbed iron element spontaneously grow on the surface of the nickel-molybdenum alloy to form the layered double-metal hydroxide nanosheet.