118 results about "Diiron Trioxide" patented technology

The application provides a weathering steel surface rust layer stabilizing treatment agent for industrial atmospheric environment, and the chemical composition of the weathering steel surface rust layer stabilizing treatment agent is as follows in terms of mass fraction: 25-45% of acrylic resin, 2.0-6.0% of chromium sulfate, 3.0-8.0% of ferrous oxide, 2.0-6.0% of ferric oxide, 0.5-3.5% of copper sulfate, 0.3-1.5% of sodium bisulfite, 1.0-6.0% of sodium molybdate, 0.5-3.5% of nickel sulfate, 2.0-5.0% of potassium phosphate, 0.05-0.5% of surfactant, 0.05-0.5% of defoaming agent, 0.05-0.5% of dispersing agent, 0.05-0.5% of thickening agent, and the balance is water, wherein the amount of plasticizer added is 2-5% of the resin. The stabilizing treatment agent in the application can promote the weathering steel surface to form a stable and dense rust layer within 0.5-1 year after the surface of the weathering steel is treated before use.

The application belongs to the field of metal materials, and discloses a method for preparing porous iron by impregnating organic foam, which comprises the following steps: step 1: impregnating slurry into a polyurethane foam template after roughening, to obtain a slurry-attached foam template; the slurry is an aqueous solution containing water-soluble resin, iron powder, ferric oxide, surfactant and thickening agent; the water-soluble resin contains a curing agent; step 2: performing rolling and drying operations on the slurry-attached foam template obtained in step 1, to obtain a green body; and step 3: performing combustion, reduction and sintering operations on the green body obtained in step 2. By using a foaming surfactant, the foaming effect of the foaming surfactant is utilized to solve the problem of closed pores and increase the porosity, and the water-soluble resin is used in combination, so that the material has certain toughness and tensile strength while the porosity is increased, and the porous iron material with high porosity and high strength is obtained. Meanwhile, the application also discloses a porous iron.

The invention provides a dark metal modified lithium orthosilicate-based thermochemical heat storage material as well as a preparation method and application thereof, and belongs to the technical field of energy and material science. The components of the heat storage material comprise lithium orthosilicate and dark metal, the proportion of the dark metal in the heat storage material is 2-10 mol%, and the source of the dark metal comprises one or more of manganese dioxide, ferric oxide, nickel oxide and copper oxide. Metal ions introduced into the obtained dark metal modified lithium orthosilicate-based thermochemical heat storage material have the effects of promoting the ion migration rate and resisting material sintering, and specifically, the heat storage density and the cycling stability of the material are remarkably enhanced. In addition, due to the introduction of the dark metal oxide, the color of the heat storage material is remarkably deepened, the solar spectrum absorptivity is greatly improved, the light absorption performance of the material is greatly enhanced, and the heat storage material has higher photo-thermal conversion efficiency and is more suitable for a concentrating solar energy storage system.

The invention belongs to the technical field of electrocatalytic nitrate reduction catalysts, and particularly relates to a graded porous hollow carbon fiber catalyst with synergistic monatomic iron and ferric oxide clusters as well as a preparation method and application of the graded porous hollow carbon fiber catalyst. The preparation method specifically comprises the following steps: stirring polyacrylonitrile and polymethyl methacrylate in an organic solvent to obtain a spinning precursor solution; the preparation method comprises the following steps: taking ferrous sulfate heptahydrate and 1, 10-phenanthroline as ligands, and stirring in an organic solvent to obtain a metal organic ligand; the preparation method comprises the following steps: stirring a spinning precursor solution and a metal organic ligand, obtaining a metal precursor-loaded composite fiber through an electrostatic spinning technology, and then carrying out pre-oxidation and high-temperature pyrolysis to obtain the composite fiber. The prepared carbon fiber has good conductivity and a unique hollow hierarchical porous structure, transmission of reactants is greatly promoted while more active sites are exposed, the carbon fiber serves as a monatomic synergistic cluster catalyst carrier, rapid transmission of electrons is facilitated, and the electro-catalysis efficiency is effectively improved.

The invention relates to the technical field of oilfield chemistry, in particular to a nano-composite viscosity reducer, a preparation method, application and a high-viscosity thick oil viscosity reduction method. According to the preparation method, the nano composite viscosity reducer is prepared from a surface-modified nano oxide and an amphiphilic polymer through a solvent exchange method; the nano oxide is nano silicon dioxide nano particles, zinc oxide nano particles or ferric oxide nano particles, and the amphiphilic polymer is a partial esterification product of a styrene-maleic anhydride copolymer or an octadecyl acrylate-methacrylic acid copolymer. According to the preparation method, the viscosity reducer not only can efficiently disassemble a colloid asphaltene network structure, but also has a certain catalytic modification function, does not influence subsequent treatment of crude oil, and has the advantages of high viscosity reduction efficiency, lasting effect, no formation of stable emulsion, shear resistance, good temperature resistance, strong universality and the like.

The invention discloses a multi-band high-stability ferrite magnetic material composite formula and a preparation process, and relates to the technical field of magnetic materials. The ferrite magnetic material composite formula comprises 38-42 parts of ferric oxide powder, 37-41 parts of ferroferric oxide powder, 6-12 parts of graphene nanosheets, 5-7 parts of hydroxypropyl methyl cellulose, 6-9 parts of lanthanum oxide, 4-6 parts of scandium oxide, 1-3 parts of nano titanium dioxide, 4-6 parts of bismuth magnesium boron, 9-13 parts of ferric sulfate, 3-5 parts of manganese sulfate, 4-6 parts of zinc sulfate, 2-4 parts of copper sulfate and 2-3 parts of samarium sulfate. By utilizing a physical vapor deposition gradient doping process, the problems that an existing ferrite magnetic material is single in electromagnetic performance, cannot stably and efficiently work in a multi-frequency-band complex electromagnetic environment and cannot meet the requirements of the fields of communication, radar, electronic countermeasure and the like for wide-frequency-band and high-performance magnetic materials can be solved.

The invention discloses a K-type phosphate cement-based anchoring agent and a preparation method thereof. The K-type phosphate cement-based anchoring agent comprises the following components: a cementing material, a curing agent, an early strength agent, a filler and water, wherein the cementing material is prepared from magnesium oxide, ferric oxide and ferrous oxide through high-temperature firing. According to the invention, phosphate cement is modified, and the early strength agent and the filler are introduced, so that the K-type anchoring agent which is suitable for coal mine use is developed, and the anchoring agent has the advantages of a cement-based anchoring agent and a resin-based anchoring agent, namely, the anchoring agent is safe, low in cost, high in drawing resistance, good in early performance, good in weather resistance and the like.

The application provides a method for preparing a magnetic heterostructure material of magnetite-graphene and application of the magnetic heterostructure material in a directional heat-conducting composite material, and belongs to the technical field of composite materials. The method comprises the following steps: (1) slowly adding a sodium hydroxide solution into a ferric chloride solution under water bath condition to prepare a ferric hydroxide gel, and sequentially performing drying and aging, centrifugation, cleaning and freeze drying on the gel to obtain a ferrous oxide nanocrystal; (2) adding the ferrous oxide nanocrystal, graphene and dopamine hydrochloride into a Tris buffer solution and fully stirring, and performing multiple centrifugation, cleaning and freeze drying to obtain ferrous oxide-dopamine-graphene; and (3) performing calcination reduction on the ferrous oxide-dopamine-graphene to obtain the magnetic heterostructure material of magnetite-graphene. The magnetic heterostructure material prepared by the method can be applied to the preparation of the directional heat-conducting composite material as a heat-conducting filler, and has the advantages of high operability, low cost and the like.

The application discloses a preparation method of a ferroferric oxide-sepiolite (Fe2O3-SEP) catalyst for CO2 amine solution desorption, wherein the catalyst is obtained by loading metal oxides on sepiolite through an impregnation method. The method comprises the following steps: firstly, magnetically stirring and impregnating a metal nitrate solution and sepiolite in a water bath, then performing suction filtration, drying, grinding and calcination to obtain the supported Fe2O3-SEP catalyst. The obtained catalyst is used for desorption of saturated amine-rich solution, the amine-lean solution after desorption is cooled, the CO2 loading amount of the amine-lean solution is titrated, CO2 is introduced again for absorption, and the amine-lean solution is recycled for 4-5 times. Compared with existing catalysts, the catalyst has the advantages of wide raw material distribution, low price, simple preparation process, no other by-products, stable catalytic performance and no influence on CO2 absorption performance of the amine solution.

The invention discloses a metal oxide composite sodium ferric sulfate positive electrode material as well as a preparation method and application thereof, and belongs to the technical field of sodium ion battery positive electrode materials. The metal oxide composite sodium ferric sulfate positive electrode material comprises the following raw materials in parts by mass: 1-20 parts of sodium sulfate, 2-40 parts of ferrous sulfate, 0.05-1 part of an antioxidant, 0.05-1 part of a carbon source and 0.01-2 parts of metal oxide, the metal oxide is at least one of ferrous oxide, ferric oxide, ferroferric oxide, manganese oxide, manganese dioxide, cobalt oxide, cobaltosic oxide, cobaltic oxide, vanadium monoxide, vanadium dioxide, vanadium trioxide, vanadium pentoxide, nickel oxide and copper oxide. The invention also discloses a preparation method and application of the metal oxide composite sodium ferric sulfate positive electrode material. The method provided by the invention can solve the problems of low conductivity and specific capacity of the existing sodium ferric sulfate positive electrode material, and has the advantages of low cost, strong process adaptability and wide application prospect.

The invention relates to the field of refractory materials, in particular to a high-erosion-resistance refractory material based on boron nitride modification and a preparation method of the high-erosion-resistance refractory material. The problem that an existing refractory material is poor in erosion resistance is solved. The refractory material is prepared by taking zirconium dioxide, silicon dioxide, calcium oxide, ferric oxide and aluminum oxide as matrixes and adding samarium lanthanum magnesium aluminum composite gel powder and boron nitride loaded chromium sesquioxide, magnesium nitrate, aluminum nitrate, samarium nitrate, lanthanum nitrate and citric acid form gel, high-temperature treatment is performed to obtain the samarium lanthanum magnesium aluminum composite gel powder, and the samarium lanthanum magnesium aluminum composite gel powder is added to the boron nitride loaded chromium sesquioxide. Boron nitride is loaded with chromium sesquioxide after being treated by tannic acid, the corrosion resistance of the material is enhanced through the synergistic effect of all the components, and the material is suitable for high-temperature furnaces, high-temperature reactors and other industrial environments needing high-temperature resistance and high corrosion resistance.

The invention discloses a rare earth doped iron oxyhydroxide / ferric oxide-three-dimensional graphene composite material and a preparation method thereof, the material is x% RE-FeOOH / Fe2O3 (at) 3D Gr, x is the molar ratio of rare earth ions to iron ions, the value range of x is 1-8.5, RE is one of rare earth elements Ce, La, Sm, Nd or Y, and RE is one of rare earth elements Fe, La, Sm, Nd or Y; the preparation method comprises the following steps: preparing a mixed solution A from an iron salt, a rare earth salt and an alkaline solution, adding a complexing agent into a graphene oxide solution to prepare a mixed solution B, performing ultrasonic treatment on the two solutions, mixing, adding a reducing agent, performing ultrasonic treatment again, and finally performing hydrothermal treatment, washing, freeze drying and low-temperature sintering. Rare earth ions can induce oxygen vacancies, increase active sites and promote ion transmission, the maximum mass specific capacitance of the material under 0.5 A / g reaches 1218.7 F / g, and the maximum capacitance retention rate of a flexible supercapacitor assembled by the material is 97% after 5000 times of charging and discharging.

The invention discloses a high-strength wear-resistant thermal-insulation refractory material for dry quenching and a preparation method thereof, and relates to the technical field of refractory materials, the high-strength wear-resistant thermal-insulation refractory material comprises the following raw materials by weight: 60-70 parts of silicon carbide, 0.5-1 part of ferric oxide, 10-15 parts of alumina, 5-7 parts of an auxiliary agent, and 8-12 parts of mullite powder. According to the refractory material for the dry quenching, by using a proper amount of the auxiliary agent and cooperating with the silicon carbide, the mullite powder, the ferric oxide and the aluminum oxide, the thermal insulation performance of the prepared refractory material for the dry quenching meets the use requirements, and meanwhile, the refractory material for the dry quenching is endowed with high normal-temperature compression strength, high-temperature breaking strength and wear resistance.

The application discloses an efficient treatment method of industrial waste salt, comprising the following steps: mixing the industrial waste salt with a certain proportion of functional particles, and performing microwave treatment; wherein the functional particles are composed of first functional particles and second functional particles; the first functional particles are selected from one or more of silicon carbide, diiron trioxide, titanium dioxide and zinc oxide; and the second functional particles are selected from one or more of 2,6-di-tert-butyl-p-cresol, hydroquinone, tert-butyl catechol and copper naphthenate. The functional particles used in the application have multiple functions such as microwave absorption, reaction catalysis, polymerization inhibition and antioxidation, etc. When the functional particles are mixed with the industrial waste salt and subjected to microwave irradiation, the organic and inorganic small molecules can be catalyzed to crack and generate gaseous small molecules, and meanwhile, the organic matters in the industrial waste salt can be prevented from polymerization, so that the increase of the content of organic polymers in the waste salt is avoided.

The invention relates to the technical field of metal smelting, and provides a device and method for reducing ferric oxide in red mud / copper-containing smelting slag through electromagnetic induction-arc plasma hydrogen synergy, and the method comprises the steps that S1, pretreatment of the red mud / copper-containing smelting slag is conducted, specifically, the red mud / copper-containing smelting slag is dried till the red mud / copper-containing smelting slag contains water lt; 5%, crushing to 1t; 1 mm; s2, the red mud / copper-containing smelting slag treated in the step S1 and an additive are mixed according to the mass ratio of 100: (0.1-10), and a reaction mixture is obtained; s3, the reaction mixture is heated to 200-700 DEG C through electromagnetic induction, meanwhile, plasma hydrogen is added for a reaction in an oxygen-free environment, and the reaction time is 10-40 min; s4, cooling a reaction product obtained after the reaction in the step S3 to 1t; then, magnetic separation is carried out on the magnetic concentrate, and magnetic concentrate is obtained; and S5, carrying out acid dissolution or building material utilization on the tailings. Impurities (Al, Si, Ca and Ti) are not reduced, a gangue phase is kept, and the impurity content of magnetic concentrate is low.

The application discloses a regenerative lubricating oil deacidification agent and a preparation method thereof, and relates to the technical field of lubricating oil deacidification agents.The application first prepares macroporous spherical activated carbon, carries out hydroxylation treatment on the macroporous spherical activated carbon by using sodium zincate, embeds anion resin into the acid-treated spherical activated carbon, retains the hollow structure of the activated carbon, and increases the contact surface area of the resin to improve the adsorption efficiency; after adsorption, the resin expands to fill the pores of the activated carbon, and the adsorption effect is further improved.Secondly, long-chain polyvinyl alcohol is bonded to the surface of silica gel to obtain silica gel with a multi-hydroxyl group, a hybrid deacidification agent of silica gel embedding metal nanoparticles and activated carbon is prepared by using a sol-gel method, and the deacidification agent contains a certain magnetism by using ferric oxide, and the deacidification agent is still an integral whole after deacidification, so that the subsequent recycling and regeneration are facilitated.The deacidification agent prepared by the application has the effects of efficient deacidification adsorption and recycling regeneration.

The present disclosure relates to a method for preparing an acid gas drying dehydrating agent from waste dechlorination agent, the method comprising: S1, subjecting the waste dechlorination agent to a first calcination treatment under an inert atmosphere to obtain a first material; S2, subjecting the first material to an impregnation treatment in an acid solution and then filtering and washing to obtain a second material; S3, subjecting the second material to a drying treatment and a second calcination treatment; wherein the waste dechlorination agent contains calcium oxides and hydroxides, aluminum oxide, sodium oxide, magnesium oxide, diiron trioxide, and calcium chloride. Using the acid gas drying agent of the present disclosure, the hydrogen chloride content in the gas does not change while dehydrating, and the supplement of chlorine can be reduced.

The invention relates to the technical field of permanent magnetic ferrite materials, and discloses a high-performance permanent magnetic ferrite material with both high residual magnetism and high coercive force and a preparation method thereof.The main crystalline phase of permanent magnetic ferrite is M-type ferrite, raw materials are matched according to the mass percent, ferric oxide accounts for 84-88 wt%, strontium carbonate accounts for 12-16 wt%, and 1-1.5 wt% of SiO2 is added; the preparation method comprises the following steps: calculating the weight of iron oxide and strontium carbonate according to the mass percentage, calculating the weight of SiO2 according to the total weight, and uniformly mixing; pre-sintering, cooling and crushing to obtain a pre-sintered material; adding the pre-sintered material into a ball mill, adding distilled water and a secondary additive, and performing wet grinding to obtain slurry; orientation molding: carrying out compression molding on the slurry under an orientation magnetic field to obtain a green body; and sintering the green body, and cooling to room temperature to obtain the permanent magnetic ferrite. By optimizing the ratio of the composite alkaline earth metal and cooperatively doping Co and rare earth elements, the magnetic performance is improved.

The application provides a deodorization catalyst and a preparation method and application thereof, and belongs to the technical field of deodorization catalysts. The application uses pseudo-boehmite as a catalyst active carrier, and uses diiron trioxide, titanium oxide and silicon oxide as effective active components of the catalyst. Through synergistic action, the catalyst accelerates the full combustion of foul-smelling gas in the production of animal carcass treatment and feather protein powder in a incinerator under the condition of ≤700 DEG C, and converts the foul-smelling gas into harmless products such as carbon dioxide, nitrogen, sulfur, water vapor, etc., and a small amount of over-oxidized products such as sulfur dioxide and nitrogen oxides, etc. have good alkaline conditions and water solubility, and are removed by spraying an alkaline aqueous solution, so as to reach the environmental protection standard discharge, and finally realize the efficient and low-cost elimination of the foul-smelling gas generated in the production of animal carcass treatment and feather protein powder.

The invention provides a method for reducing the sulfur content of ferric oxide prepared from ferrous sulfate, and relates to the technical field of inorganic chemical material preparation, and the method comprises the following steps: S1, adopting a two-stage crushing process of mechanical grinding and airflow crushing to preliminarily refine the particle size of a raw material from 50-100 microns to 20-30 microns (D50); s2, an external heating type rotary kiln is adopted for heating and calcining, the temperature in the kiln is monitored and controlled in real time, the temperature of a calcining area is controlled to be 820 + / -10 DEG C, and it is ensured that the decomposition rate of ferrous sulfate is larger than or equal to 99.5%; s3, 0.4 MP superheated steam is introduced into the rotary kiln through a steam generator, the steam reacts with hydroxyl groups on the surfaces of the FeSO4 particles, active sites are formed, the sulfur escape rate is increased, and the interior of the kiln is kept in a micro-negative pressure state through a kiln tail fan; and S4, primarily cooling and collecting the calcined product, and collecting most ferric oxide particles. According to the method, the sulfur content in the product is greatly reduced, the product purity is improved, the production period is shortened, and the comprehensive energy consumption is reduced.

The invention relates to the technical field of manufacturing of metal composite materials, and discloses a corrosion-resistant and wear-resistant bimetal composite cylinder liner which is prepared through the following steps that the inner wall of an outer-layer matrix steel pipe is pretreated and coated with an interface activation flux; raw materials containing waste steel, ferrochrome and the like are molten, ferrotitanium and ferroboron are sequentially added for alloying, then ferric oxide powder and metal yttrium are added for modification treatment, and inner-layer alloy liquid is obtained; the preheated outer-layer matrix steel pipe is placed in a rotating state, and the inner-layer alloy liquid is poured; and after the to-be-solidified pipe fitting is cooled to the room temperature, the pipe fitting is heated to the austenitizing temperature, heat preservation is conducted, and then isothermal quenching treatment is conducted. According to the method, interface oxides are effectively removed and firm metallurgical bonding is promoted by utilizing the interface activation flux; a core is formed through in-situ reaction of metal yttrium and ferric oxide so as to refine grains; and a lower bainite and retained austenite mixed structure is obtained through isothermal quenching, the comprehensive mechanical property of the cylinder sleeve is improved, and the service life of the cylinder sleeve is prolonged.

The application discloses an iron-based barium sodium niobate ceramic material with high energy storage performance and a preparation method thereof. 4‑2x Sm 2x Na2Fe x Nb 10‑x O 30 , wherein 1<=x<=1.25. Barium carbonate, samarium oxide, sodium carbonate, ferrous oxide and niobium pentoxide are used as raw materials, and a standard solid-phase method is adopted to sinter the iron-based barium sodium niobate ceramic material. In the product formula, iron is used to replace niobium in the barium sodium niobate, which is lead-free, environment-friendly, rich in iron reserves and low in price, and is beneficial to control the cost of raw materials. In addition, the iron replacement is beneficial to enhance the relaxor ferroelectric performance of the material, can obtain a more slender hysteresis loop, and improves the energy storage efficiency of the material. The prepared ceramic material has few pores and cracks, high density, and the microstructure is obviously improved, the grain size is more fine and uniform, the ferroelectric polarization intensity and the breakdown field strength are significantly improved, the problem that the barium sodium niobate material is difficult to sinter is solved, and the ferroelectric performance and the energy storage performance are significantly improved.

The application discloses a method for preparing an ultra-low sulfur iron product and the ultra-low sulfur iron product, and relates to the technical field of high-purity iron products. The method comprises the following steps: obtaining a hydroxyl ferric oxide precursor; placing the hydroxyl ferric oxide precursor in a container, and keeping the temperature in the container at 400-800 DEG C; dehydrating and transforming the hydroxyl ferric oxide into a ferroferric oxide crude product; reducing the ferroferric oxide crude product into magnetite under a reducing atmosphere; oxidizing the magnetite into ferroferric oxide under an oxidizing atmosphere; repeating the reduction-oxidation steps at least once to obtain ultra-low sulfur ferroferric oxide, or repeating the reduction steps at least once to obtain ultra-low sulfur magnetite, or repeating the reduction steps at least once to reduce the ferroferric oxide into iron single substance to obtain ultra-low sulfur iron single substance. The reduction and oxidation steps are cycled to efficiently remove the sulfur wrapped in the crystal lattice and the sulfur in the deep layer of the particles, and meanwhile, the temperature of the fire desulfurization is lowered.

The invention relates to a cerium-lanthanum co-doped and aluminum-introduced modified permanent magnetic strontium ferrite material as well as a preparation method and application thereof, and belongs to the technical field of ferrite permanent magnetic materials. The preparation method comprises the following steps: adding Al2O3 in an amount which is 0.1-0.9 wt% of the theoretical amount of Fe2O3, and replacing Fe2O3 in an equimolar manner, so that the total mole number of cations is kept unchanged, and finally obtaining a stoichiometric formula: Sr < 0.41 > Ce < 0.175 > La < 0.185 > Ca < 0.23 > Fe < 11.8-x > Al < x > Co < 0.2 > O < 19 >. The preparation method comprises the following steps: carrying out ball-milling mixing on rare earth oxide, strontium carbonate, ferric oxide, cobalt oxide, calcium carbonate and aluminum oxide which is added in proportion, drying, pre-sintering, molding, and sintering at high temperature to obtain the permanent magnetic strontium ferrite material. Rare earth is synergistically doped and Al < 3 + > is equimolar to replace Fe < 3 + >, so that lattice distortion is inhibited, a crystal structure is optimized, and meanwhile, the coercive force and the magnetic energy product of the material are effectively improved. The prepared sample has excellent magnetic performance and thermal stability, and is suitable for the high-performance fields of motors, magnetic sensors, permanent magnet devices and the like.

The application discloses a network soil thermal desorption catalyst, a preparation method and application thereof, and belongs to the field of environmental protection. The catalyst takes an iron net as a carrier and takes manganese-cobalt composite metal sulfide as an active component. The mass content of the active component is 3-6% based on the mass of the carrier. The scheme is characterized in that the iron net is subjected to oxidation pretreatment, so that an iron trioxide oxidation layer is formed on the surface; then the iron net is immersed in an active component solution to perform electrochemical deposition loading; finally, the finished catalyst is formed through special atmosphere calcination. The catalyst is environment-friendly, can efficiently induce the thermal desorption of organic pollutants in soil, and can realize 100% removal of o-xylene at 120 DEG C. Meanwhile, the catalyst is convenient to recycle, has higher economic benefits and wide market application prospect.

The invention relates to the technical field of preparation of novel functional materials, in particular to coal gangue-based lightweight ceramsite and a preparation method thereof. The preparation method comprises the following steps: by taking coal gangue as a main raw material, mixing aluminum oxide, a fluxing agent and carbon powder, granulating into a ball material, drying, preheating, sintering at 800-1200 DEG C, and burning by utilizing the carbon powder to form a porous structure, thereby obtaining the light ceramsite. Wherein the ferric oxide, the magnesium oxide and the anhydrous sodium carbonate are mixed in proportion. According to the preparation method, the problems of low coal gangue mixing amount, poor pore-forming agent matching property and insufficient ceramsite sintering in existing ceramsite preparation are solved, large-scale consumption of the coal gangue is realized, the prepared ceramsite has high apparent porosity, low volume density, good water absorption and corrosion resistance, the preparation process is simple and convenient, and large-scale production is easy to realize.

The application discloses a kind of light absorption material glass for high-definition ultra-short inverter and preparation method thereof, and the light absorption material glass includes the following weight percentage components: quartz sand 40-50%, boric acid 6-12%, alumina 7-15%, sodium carbonate 1-10%, potassium carbonate 1-10%, lithium carbonate 0-2%, basic magnesium carbonate 0-3%, calcium carbonate 0-5%, barium nitrate 1-3%, zirconium oxide 0-3%, copper oxide 1-3%, potassium permanganate 3-6%, potassium chromate 0.2-1%, diiron trioxide 1-5%, cobalt trioxide 1-6%, nickel oxide 1-6%, vanadium pentoxide 1-6%, cerium oxide 0-1%. The light absorption material glass of the application is used for preparing ultra-short inverter, which can effectively improve the transmittance and resolution of ultra-short inverter.

A cathode and an aluminum-ion battery, the cathode containing an active material, said active material being manganese dioxide, ferric oxide, ferrous oxide, magnetite, copper oxide, graphite, or metal carbonitride, wherein said metal element includes at least one selected from gold, silver, copper, platinum, palladium, iron, cobalt, and nickel.

The application relates to a preparation method of an electromagnetic shielding material and the electromagnetic shielding material, and the method comprises the following steps: acid washing, water washing and alcohol washing liquid metal to obtain a first substance; modifying the first substance by using ferroferric oxide nanoparticles to obtain a second substance, the mass fraction of the ferroferric oxide nanoparticles in the second substance is between 4.8% and 5.7%; mixing the second substance, polyurethane prepolymer, a dispersing agent, a diluent and a blocked isocyanate curing agent to obtain the electromagnetic shielding material; the mass ratio of the second substance to the polyurethane prepolymer is between 0.2 and 0.24; the mass ratio of the second substance to the dispersing agent is 4; the mass ratio of the second substance to the diluent is between 1.5 and 1.6; and the mass ratio of the second substance to the polyurethane prepolymer is between 2 and 2.2. The electromagnetic shielding material prepared by the method has excellent electromagnetic shielding efficiency.

The application provides a preparation method of structure-enhanced magnetic graphene aerogel wave-absorbing material, and comprises the following steps: S1, preparing graphene oxide solution by taking graphite flake as raw material; S2, weighing iron chloride, fumaric acid and deionized water, stirring to dissolve and then hydrolyzing; collecting the precipitate by centrifugation, drying after washing to obtain iron-based metal organic framework; S3, placing the iron-based metal organic framework obtained in step S2 in air, pyrolyzing to obtain ferroferric oxide nanorod, mixing the ferroferric oxide nanorod with deionized water, ultrasonic dispersing, adding graphene oxide solution and hydrazine hydrate, ultrasonic treating and then hydrolyzing to form hydrogel, soaking, freeze-drying to obtain composite aerogel; S4, heat-treating the composite aerogel in N2 atmosphere to obtain structure-enhanced magnetic graphene aerogel. The magnetic nanorod derived from the iron-based metal organic framework is introduced into the graphene aerogel, which can not only improve the wave-absorbing intensity and absorption bandwidth, but also improve the compression resistance.