157 results about "Acid radical" patented technology

The invention provides a photosensitive resin composition containing an anthracene methyl quaternary ammonium salt photosensitizer and application of the photosensitive resin composition, a structural main body anthracene ring of the photosensitizer is introduced into methylene substituted by a quaternary ammonium group at a position 10 and / or a position 9, and an acid radical or halogen is adopted as an equilibrium anion; compared with a commercially available anthracene photosensitizer, the photosensitizer has excellent fat solubility and good water solubility through introduction of the quaternary ammonium salt on the premise that the photobleaching property is retained, great potential is brought to formula design of the photosensitive composition, and development waste in a later development process can be greatly reduced; the method can be widely applied to the photo-curing fields of dry films, paints, coatings, printing ink, forming materials and the like.

The invention discloses a solar cell and a preparation method thereof, electric equipment and power generation equipment, the solar cell comprises a passivation material, and the passivation material comprises cations and anions; the cations comprise ammonium ions, and the anions comprise acid radical ions; the ammonium ions comprise substituted or unsubstituted alkyl ammonium ions, and the acid radical ions comprise any one of organic acid radical ions and inorganic acid radical ions. The positive ions in the passivation material can enter perovskite crystal lattices to form two-dimensional perovskite to play a role in protecting a light absorption layer, and the electron cloud density on the negative ions is relatively high and can act with excessive lead iodide in the perovskite to stabilize a lead-iodine octahedral framework, so that the passivation material can passivate the defects of a perovskite layer, and the light absorption performance of the light absorption layer is improved. And the photoelectric conversion efficiency and the stability of the solar cell device are improved.

The invention discloses a method for synthesizing a dichloroacetyl compound, which comprises the following steps: tetrachloroethylene and an acid are subjected to an addition reaction at 100-200 DEG C to obtain an adduct, then the adduct is subjected to an acidolysis, hydrolysis or alcoholysis reaction to obtain the dichloroacetyl compound, the acid for the addition reaction is at least one of sulfuric acid, trifluoromethanesulfonic acid, methanesulfonic acid and phosphoric acid, and the acid for the alcoholysis reaction is at least one of sulfuric acid, trifluoromethanesulfonic acid, methanesulfonic acid and phosphoric acid. The molar ratio of the tetrachloroethylene to the acid is 1: (1-10). By controlling the types of acids and increasing the temperature of the addition reaction, the addition reaction of tetrachloroethylene and acids in the absence of a catalyst is realized. Double bonds of tetrachloroethylene and hydrogen protons are subjected to an addition reaction in a strong acid environment to form a cationic intermediate, then the cationic intermediate is combined with acid radical anions to form an adduct, and the adduct intermediate is high in activity, unstable and free of separation and can be directly subjected to a hydrolysis reaction, an acidolysis reaction or an alcoholysis reaction with another substrate (such as water, acid or alcohol) respectively. The synthesis of dichloroacetyl series compounds is realized, and the route has universality and diversity.

The utility model relates to the technical field of electroplating, and discloses a waste liquid treatment device and an electroplating system. The waste liquid treatment device comprises an installation frame, a treatment box, an anode plate and a cathode plate, the treatment box is installed in the installation frame and suitable for being immersed in waste liquid, the treatment box comprises a box body with a cavity and an opening formed in the top of the box body, at least one side face of the box body is provided with a hollowed-out hole, and the hollowed-out hole is covered with an ionic membrane; the ionic membrane is used for separating water molecules and acid radical ions in the waste liquid, the anode plate is arranged in the cavity from the opening and is suitable for introducing the acid radical ions into the cavity, and the cathode plate is arranged in the waste liquid outside the treatment box and is electrically connected with the anode plate. Acid radical ions in the waste liquid enter the cavity to be concentrated and are effectively separated from water molecules in the waste liquid. Main pollutants in the separated waste liquid are removed, so that the separated waste liquid can be reused, the waste of water resources is reduced, the discharge amount of the waste liquid is reduced, and the treatment cost of the waste liquid is effectively saved.

A machine learning (ML)-accelerated first-principles prediction method for a hydration structure of an acid radical anion is provided. The prediction method includes the following steps: S1: constructing and optimizing an anion hydration structure M_mH2O; S2: perturbing the optimized anion hydration structure to generate a training dataset; S3: conducting a ML force field training on the training dataset to establish ML models; S4: conducting a molecular dynamics simulation on the ML models, and identifying atomic structures with a force deviation within a preset range as candidate configurations; S5: merging a validated candidate configuration into a training set for a subsequent iteration to further refine and train the ML model until the model converges, thereby generating an accurate deep potential (DP) model; and S6: conducting a ML-accelerated deep potential molecular dynamics simulation on the DP model to ultimately acquire the hydration structure of the acid radical anion.

The invention discloses a method for producing bacterial cellulose by pretreating papermaking sludge through an acid-heat method, and belongs to the technical field of papermaking sludge resource utilization. In order to solve the problem that the paper mill sludge is difficult to safely dispose, the method comprises the following steps: adding a surfactant into the paper mill sludge, stirring, filtering and drying, obtaining paper mill sludge hydrolysate through an acid heating method, removing acid radicals and other inhibitors in the hydrolysate, adjusting the pH value to 6.0-6.8, diluting the hydrolysate, adding a nitrogen source into the diluted hydrolysate, and carrying out heat preservation for 2-3 hours, thereby obtaining the paper mill sludge. And producing bacterial cellulose as an acetobacter xylinum culture solution. The bacterial cellulose prepared by the method is equivalent to the bacterial cellulose prepared by a glucose culture medium with equivalent sugar content in yield and performance, so that the paper mill sludge can be used as a potential carbon source for bacterial cellulose production. The treatment method is environment-friendly and remarkable in economic benefit, and meanwhile has the advantages of being easy to operate, good in yield and performance and wide in prospect.

The invention discloses an acid-resistant composite membrane as well as a preparation method and application thereof in acid purification, and the preparation method comprises the following steps: performing polymerization reaction on perfluoro-2-methylene-4-methyl-1, 3-dioxolame and chlorotrifluoroethylene in a perfluoro solvent under the action of a catalyst, then preparing a copolymer, the perfluoro solvent and acetone into a composite layer membrane liquid, and performing acid-resistant treatment on the composite layer membrane liquid to obtain the acid-resistant composite membrane. And coating on the surface of the base membrane, and drying. The prepared acid-resistant composite membrane can maintain good stability in strong acid such as hydrofluoric acid, has a high interception effect on acid radical ions and metal ions in a high-acid solution, and can be applied to purification of various acids.

The invention discloses a chlorine-nitrogen co-coordinated monatomic zirconium adsorbent and application thereof in selective defluorination of high-salinity wastewater, and belongs to the technical field of fluorine-containing wastewater treatment. The preparation method comprises the following steps: self-assembling melamine and cyanuric acid to obtain supramolecules, ball-milling the supramolecules and zirconium chloride, and pyrolyzing twice to obtain the chlorine-nitrogen co-coordinated monatomic zirconium adsorbent. According to the adsorbent, strong electrostatic repulsion is applied to oxygen-containing acid radicals through electronegative nitrogen ligands, and strong coordination is applied to fluorine ions through electropositive zirconium atoms, so that selective capture of low-concentration fluorine ions in high-salinity wastewater is realized. Compared with a traditional adsorbent, the prepared adsorbent has the advantages of being high in fluorine removal capacity, high in salt tolerance and the like, can overcome the defects that a conventional chemical precipitation method, a coagulation method and a flocculation method are large in agent dosage, high in hazardous waste yield, high in treatment cost and the like, and has a wide application prospect.

The invention relates to the technical field of rare earth wastewater treatment, in particular to a rare earth wastewater treatment method which specifically comprises the following steps: (1) reacting rare earth feed liquid with an oxalic acid precipitator to generate oxalic acid rare earth precipitate and hydrochloric acid, and carrying out solid-liquid separation to obtain diluted hydrochloric acid; (2) treating the diluted hydrochloric acid with an alkaline extractant to remove iron / zinc / copper / nickel impurities in the hydrochloric acid so as to obtain pure diluted hydrochloric acid; and (3) in a corresponding rare earth extraction tank, diluted hydrochloric acid reacts with the loaded organic phase in a reverse extraction section, metal ions enter a water phase after exchange to obtain rare earth feed liquid, and the organic phase is combined with acid radical ions to realize regeneration.

The present invention provides a light absorption filter, a light filter using the light absorption filter, a method for manufacturing the light filter, an organic electroluminescent display device, an inorganic electroluminescent display device or a liquid crystal display device including the light filter, and a method for manufacturing the organic electroluminescent display device, the inorganic electroluminescent display device or the liquid crystal display device. The light absorption filter contains a resin, a specific dye, and a compound that generates radicals by irradiation with ultraviolet light, and a polymer constituting the resin contains a crosslinkable group. The light absorption filter includes a resin, a compound A having an acid group, a compound B that forms a hydrogen bond with the acid group included in the compound A and generates a radical by ultraviolet irradiation, and a specific dye. The compound A is included in a side chain of a polymer constituting the resin.

A method and device for online continuous production of a high-purity oxide powder. The method comprises: spraying a waste acid solution into a production furnace (1), and roasting same to generate an oxide powder; transferring flue gas generated in the production furnace (1) to a flue gas treatment unit, and conveying a primary oxide powder generated by the production furnace (1) to a secondary reactor to be heated and purified again, so as to obtain hot gas and a secondary oxide powder; and performing gas-solid separation on the hot gas generated in the secondary reactor, and recovering a gas phase obtained by the gas-solid separation into the production furnace (1) to recover acid radical ions. The primary oxide powder generated by the roasting in the production furnace (1) is heated and purified again by means of the secondary reactor, and therefore residual acid radical ions and moisture in the powder are further released, and the quality and performance of the oxide powder is improved, thereby obtaining an oxide powder that is free from moisture and acid radical ions; moreover, a stable and airtight internal production environment required for the production furnace (1) can be well maintained.

The invention relates to the technical field of oral biological materials, in particular to a self-adaptive anti-caries coating as well as a preparation method and application thereof. The coating is prepared from random and block polymers, and is specifically prepared by polymerizing acid radical-containing functional monomers, phenylboronic acid and derivatives thereof. Construction of the coating depends on specific coordination of a functional group and Ca < 2 + > in enamel, and stable anchoring on the tooth surface is achieved. The core action mechanism is to introduce phenylboronic acid groups to endow the coating with pH sensitive characteristics: in a cariogenic acid environment, biofilm formation is synergistically inhibited through a plurality of mechanisms such as physical barrier, electrostatic repulsion and inhibition of mucoprotein-mediated adhesion. According to the application, the Ca < 2 + > anchoring monomer, phenylboronic acid and the derivative thereof are copolymerized, design is carried out aiming at two key links of protein adsorption and bacterial adhesion, multi-mechanism synergy and environment dynamic response are integrated, and an integrated anti-caries effect from early intervention to long-term protection is realized.

The invention belongs to the field of polymer chemistry, and relates to a metal complex, a catalytic system and application thereof, and polypropylene carbonate and a preparation method thereof. The structure of the metal complex is as shown in formula (I): # imgabs0 #, wherein M is a trivalent metal ion; y is a monovalent acid radical ion; r1 is a substituted or unsubstituted cycloalkylene group or arylene group of C5-C12; r2 is H or alkyl of C1-C6; and R3 is an alkylene group of C1 to C10. Compared with the prior art, the method has the following advantages that the Salen metal complex with a novel phenothiazine structure is adopted as a main catalyst to efficiently catalyze copolymerization of carbon dioxide and epoxide to prepare the polypropylene carbonate, and the obtained polypropylene carbonate has the characteristics of high molecular weight and narrow molecular weight distribution.

The invention provides a photosensitive resin composition containing an acridine methylene quaternary ammonium salt photosensitizer and application of the photosensitive resin composition, quaternary ammonium group substituted methylene is introduced to the ninth position of a structural main body acridine ring of the photosensitizer, and acid radical or halogen is adopted as equilibrium anion. According to the photosensitizer, a quaternary ammonium salt group is introduced to the 9 site of an acridine ring, so that the problems that a traditional 9-phenylacridine photosensitizer is poor in compatibility, prone to crystallization and precipitation, insufficient in water solubility, weak in antistatic performance and the like in a formula are effectively solved. The photosensitive resin composition disclosed by the invention shows excellent dispersion stability, high sensitivity and high resolution, and can be used for remarkably reducing precipitates in a developing process and reducing poor lamination caused by static accumulation. The photosensitive dry film prepared based on the composition is suitable for fine pattern manufacturing in the fields of dry films, paints, coatings, printing ink, forming materials and the like, and has high yield and production efficiency.

This invention relates to a highly efficient scale inhibitor and its preparation method, belonging to the field of water treatment agent technology. The invention synthesizes a branched dehydroabimethamine compound with a branched structure, and utilizes the Michael addition reaction between the secondary amine group and the double bond of the branched dehydroabimethamine compound to graft sulfonic acid and phosphonic acid groups onto the compound, obtaining a scale inhibitor with a dehydroabimethamine structure, a branched structure, sulfonic acid groups, and phosphonic acid groups. The sulfonic acid and phosphonic acid groups in the scale inhibitor have a strong chelating effect with metal ions such as calcium, iron, and magnesium, thereby disrupting scale growth. The sterically hindered dehydroabimethamine structure and branched structure in the scale inhibitor, after adsorbing onto the surface of scale-forming microcrystals in water, form physical spatial barriers between scale particles, thus preventing the microcrystals from approaching and aggregating, thereby preventing them from forming large scale deposits.

The invention belongs to the technical field of perovskite nanocrystals, and particularly relates to a composite material and a preparation method thereof, a photoelectric device and a display device, and the composite material comprises perovskite nanocrystals and acid radical anions of VIB group elements modified on the surfaces of the perovskite nanocrystals. The invention further relates to a preparation method of the composite material, a photoelectric device and a display device. According to the technical scheme provided by the invention, the stability of the perovskite nanocrystal in different environments can be improved.

The embodiment of the present application provides an electrolyte, a secondary battery and an electric device, wherein the electrolyte provided by the embodiment of the present application comprises a sodium salt, an organic solvent and an additive, the additive at least simultaneously comprises a B-O bond, a C=C bond and a C=O bond, wherein B in the B-O bond is in an electron-deficient state, so that the additive is acidic, can complex with an acid radical ion of the sodium salt, thereby improving the dissociation degree of the sodium salt and the migration number of sodium ions, and reducing the bulk phase and electrode interface impedance; and the C=C bond and the C=O bond in the additive can effectively reduce the deposition of transition metals such as Mn of the negative electrode, reduce the impedance, can form a highly stable electrode-electrolyte interface structure, can stabilize the positive and negative electrode interface film, and improve the high-temperature storage and cycle performance of the battery, thereby solving the problems that the electrode / electrolyte interface of the existing sodium ion battery is unstable, and is easy to cause the battery to deform and the performance to decay.

The invention discloses a preparation method of an oxyacid radical modified graphite-based cathode for electro-catalysis hydrogen peroxide synthesis. An oxyacid (sulfuric acid or phosphoric acid) and nitric acid are compounded to form a mixed acid solution, and the graphite-based electrode is subjected to oxyacid radical modification by using the mixed acid solution. The preparation method of the oxygen-containing acid modified graphite-based electrode is simple and low in cost, does not need harsh conditions such as high temperature and the like, and has great industrial and large-scale production potential; the oxygen-containing acid radical modified graphite-based cathode prepared by an acid treatment method is used for reducing oxygen to produce hydrogen peroxide, the yield of the hydrogen peroxide exceeds 21.79 mg.cm <-2 >. H <-1 > and is increased by about 20 times compared with the yield (1.13 mg.cm <-2 >. H <-1 >) of oxygen oxidation by using unmodified original commercial carbon paper, and meanwhile, the highest selectivity of the hydrogen peroxide is up to 97.5%.

The invention discloses an electrolyte and preparation and application thereof. The electrolyte comprises a positive electrolyte and a negative electrolyte, the positive electrolyte is an aqueous solution in which vanadium ions, ammonium ions and acid radical ions are dissolved, and the negative electrolyte is an aqueous solution in which nickel ions, cobalt ions and acid radical ions are dissolved. The preparation method of the electrolyte comprises the following steps: dissolving vanadium oxide and / or vanadium salt by adopting inorganic strong acid, filtering and taking filtrate to obtain a first solution; adjusting the average valence state of vanadium ions in the first solution to 4 by adopting an oxidizing agent or a reducing agent, and filtering to take filtrate to obtain a second solution; adding ammonium salt into the second solution, and dissolving to obtain a positive electrode electrolyte; dissolving metal nickel and / or nickel salt and metal cobalt or cobalt salt by adopting inorganic strong acid, filtering and taking filtrate to obtain a third solution; and adding water into the third solution, and adjusting the concentrations of nickel ions and cobalt ions to obtain the negative electrode electrolyte. The invention can ensure that the battery outputs electric energy more stably, shows excellent electrochemical performance and has a wide application prospect.

A positive photosensitive resin composition for a low-temperature process includes an alkali-soluble phenolic resin, a compound with quinonediazide group, a mixed solvent and at least one additive. The mixed solvent includes a first solvent and a second solvent. The first solvent has a volatilization rate of more than 50 relative to a volatilization rate of butyl acetate of 100, and the second solvent has a boiling point between 150° C. and 200° C. The at least one additive has a molecular weight of 500-5000 and a structural unit as Formula (I), wherein R1 is selected from a group consisting of hydrogen, hydroxyl group, C1-C5 alkyl group, phenyl group, halogen atoms and cyano group, R2 is selected from a group consisting of hydrogen, acid radical, benzene and derivatives thereof, phenols, benzoic acid and derivatives thereof and aromatic heterocycles, and n is 10-80. It is also provided a method for preparing a photoresist film

The invention relates to Ni-based organic coordination nanoparticles, a preparation method thereof, a photoresist composition containing the Ni-based organic coordination nanoparticles and application of the photoresist composition. The Ni-based organic coordination nanoparticles are obtained by mixing and stirring a nickel-containing compound, m-toluic acid and a nitrogen-containing organic ligand in an organic solvent and then performing post-treatment, and the nanoparticles with the chemical general formula of NimXn (CH3COO) tYpHq are obtained, X is m-toluic acid radical, CH3COO represents acetate radical, Y is the nitrogen-containing organic ligand, m, n, p and q are independently selected from any integer of 1-20, and n is an integer of 1-20. And t is any integer selected from 0-20. As a photoresist component, the Ni-based organic coordination nanoparticles can realize more excellent photoetching performance such as high resolution, high sensitivity, low line roughness and the like.

The application provides a photosensitive resin composition containing an anthracene methyl quaternary ammonium salt photosensitizer and application thereof, the photosensitizer has a quaternary ammonium group substituted methylene introduced at 10 and / or 9 positions of the anthracene ring, and an acid radical or halogen is used as a counter anion; compared with a commercially available anthracene photosensitizer, the photosensitizer has excellent fat solubility and good water solubility by introducing the quaternary ammonium salt on the premise of retaining photobleaching, brings great potential for formula design of the photosensitive composition, and can greatly reduce developing waste in a later developing process; and can be widely applied in the fields of dry films, paints, coatings, inks and molding materials and the like.

The invention discloses a light flame-retardant nano cellulose film as well as a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. The method comprises the following steps: mixing nanocellulose with a flame-retardant element source containing acid radicals, and carrying out hydrogen bond bonding and electrostatic interaction to obtain nanocellulose dispersion liquid rich in flame-retardant acid radicals; an oxidizing agent and a polymer monomer are added into the nanocellulose dispersion liquid rich in flame-retardant acid radicals for a polymerization reaction, and the nanocellulose film is obtained through suction filtration and film forming. The flame-retardant elements in the film are uniformly dispersed in the three-dimensional network structure in a chemical bonding manner, so that the thermal stability and the body flame retardance of the cellulose material can be improved, and the ionic conduction capability of the film can be improved by utilizing the porous structure of the nano cellulose material; when the material is applied to a lithium ion battery as a diaphragm material, the capacity and the rate capability of the battery can be improved, and the safety and the cycling stability of the battery can be remarkably improved.

The invention discloses an iron-silicon magnetic powder core and a preparation method thereof, and belongs to the technical field of soft magnetic materials and powder metallurgy. The preparation method comprises the following steps: fully mixing a phosphoric acid metal ion solution containing phosphoric acid and metal acid phosphate with iron-silicon alloy powder; the mass ratio of the phosphoric acid solution to the metal acid phosphate to the iron-silicon alloy powder is (0.25-1.5): (0.5-3): 100, and the mass ratio of the phosphoric acid solution to the metal acid phosphate to the iron-silicon alloy powder is (0.25-1.5): (0.5-3): 100; and the coated iron-silicon alloy powder is pressed, and the iron-silicon magnetic powder core is prepared. According to the scheme, the iron-silicon alloy powder is added into the weak acid mixed solution of the phosphoric acid and the metal acid phosphate, so that the dosage of the phosphoric acid in the passivation process is reduced, the passivation speed of the iron-silicon alloy powder is slowed down, and a more uniform insulating coating layer can be formed; meanwhile, by adding metal acid phosphate, acid radical ions are provided in the passivation process, and corresponding orthophosphoric acid metal is generated on the outer surface of the iron-silicon alloy powder.

The invention discloses a method for improving the fluctuation resistance of a NiFe-LDH bimetallic oxyhydroxide catalytic material by electrolyte optimization based on a first principle. The method comprises the following steps: performing relaxation calculation according to a first principle, cutting a low-Miller-index crystal face of a NiFe-LDH bimetallic oxyhydroxide crystal, and calculating system energy corresponding to a stable configuration of the crystal; establishing and constructing stable adsorption configurations of various acid radicals and the target on the basis of a first principle, performing relaxation calculation, and calculating corresponding system energy in an adsorption state; and calculating the total energy and the electronic structure of different acid radical ion adsorption states based on the original stable configuration energy and the adsorption state stable configuration energy obtained in the early stage. According to the method, a first principle is used for calculation, field experiments do not need to be carried out one by one for specific scenes, crystal track layout changes of various acid radical ions in the NiFe-LDH bimetallic oxyhydroxide catalytic surface adsorption process can be accurately estimated, and directional screening of specific acid radical adsorption on the anti-fluctuation performance of catalytic material optimization is achieved.

The invention provides a sulfonate photoacid generator and a preparation method and application thereof.The sulfonate photoacid generator has the structure shown in the general formula (I), the photoacid generator does not contain fluorine, the acidity of sulfonic acid generated through photolysis of the photoacid generator is not weaker than that of traditional fluorine-containing photoacid, and the problems that according to an existing sulfonate photoacid generator, acid radicals contain fluorine, and the acid radicals are not prone to being damaged are solved. The sulfonate photoacid generator does not contain the problem of weak acidity of fluorine acid radicals, and can improve the photosensitivity and resolution of the photosensitive composition.

The invention relates to the technical field of ammonium polyphosphate synthesis, in particular to a wet-process phosphoric acid demetalization method and a synthesis method of an industrial grade II type ammonium polyphosphate product. The wet-process phosphoric acid demetallization method comprises the following steps: metal impurities in wet-process phosphoric acid are extracted and removed by adopting a mixed extraction agent, the mixed extraction agent comprises an extraction agent and a diluent in a volume ratio of (1-5): 1, the extraction agent is selected from one or more of di (2-ethylhexyl) phosphate, tributyl phosphate and n-butyl alcohol, and the diluent is selected from one or more of tributyl phosphate and n-butyl alcohol. The diluent is selected from one or two of dodecane and xylene; after the extraction is completed, standing for phase separation, and removing aluminum impurities from a water phase by adopting ammonium fluoride and fluosilicic acid. The wet-process phosphoric acid demetallization method is matched with desulfurization acid radical treatment, the obtained pretreated wet-process phosphoric acid is prepared through the synthesis method, an industrial grade II-type ammonium polyphosphate product with the higher polymerization degree can be obtained, and the flame retardant effect of the product is better.

This invention relates to a titanium cyanide quaternary ammonium salt compound, its preparation method, and its application. The titanium cyanide quaternary ammonium salt compound is the compound shown in the formula. The method for preparing the compound shown in the formula includes (1) preparing pyridine phthalocyanine from o-pyridine dinitrile as a starting material, and (2) quaternizing the pyridine phthalocyanine with the corresponding halogenated product to obtain the target compound. Adding the compound shown in the formula during the pigmentation process of zinc halide phthalocyanine crude pigment can not only improve the brightness and contrast of the zinc halide phthalocyanine pigment, but also enhance its dispersibility and storage stability. In the formula, R1~R4 are independently selected from C1~C4. 10 Alkyl groups, fluorine-containing C1~C 10 Alkyl groups, or C1-C groups substituted with 5-6 aryl groups. 10 One of the alkyl groups; X is an acid radical anion with balanced charge.

The invention belongs to the field of catalytic materials, and discloses a preparation method of an alkaline nitrate catalytic material (Fe-NiNH / NF) and application of the alkaline nitrate catalytic material in electrocatalytic oxygen evolution reaction in seawater. The basic nitrate catalyst is innovatively prepared by designing basic nitrate and optimizing a hydrothermal method preparation process, and the catalyst forms a regular nanosheet or nanolayer structure and can uniformly cover a three-dimensional porous substrate of foamed nickel. The sheet structure not only significantly increases the surface area, but also provides more active sites for the reaction, thereby greatly improving the OER catalytic efficiency. Meanwhile, NO3-acid radicals are introduced, and the acid radical ions can effectively regulate and control electron distribution in the structure and have a stabilizing effect on real active species in the catalysis process. In addition, the preparation process provided by the invention realizes relative simplification on the core steps of pretreatment of the foamed nickel, multi-metal basic salt loading by a hydrothermal method, metal synergistic doping hydrothermal reaction and the like, and is suitable for industrial application.

The invention discloses an aluminum-based porous adsorption material for capturing CO2 and a preparation method of the aluminum-based porous adsorption material. The material is prepared by taking an industrial-grade aluminum source and formate as core components and an acid radical assistant as auxiliary materials through step-by-step coordination assembly of premixing the aluminum source and the formate and then adding the assistant, and other metal elements are not introduced. According to the invention, the generation of large grains is inhibited through coordination competition of an acid radical auxiliary agent, a hydrogen confinement pore cavity (3.8) is constructed, the engineering CO2 dynamic adsorption capacity is up to 48.8 cm / g, the CO2 / N2 dynamic selectivity is up to 12.8, the single-tower carbon capture energy consumption is low, the material performance is superior to that of commercially available silica gel and similar commercial MOF materials, and the bottlenecks of poor mass transfer, high cost and slow rate of the traditional material are effectively broken through. The adsorbent is adaptive to CO2 / N2 and CO2 / low-carbon hydrocarbon mixed systems, can be applied to industrial scenes such as flue gas decarburization and natural gas upgrading, and has the advantages of cheap raw materials, simple process and remarkable application potential.