32 results about "Acetate ion" patented technology

The invention discloses a photocatalytic material with a baseball-shaped structure as well as a preparation method and application of the photocatalytic material, and belongs to the technical field of photocatalytic synthesis of ammonia. The invention discloses a photocatalytic material with a baseball-shaped structure. The photocatalytic material comprises FeMOF with a rod-shaped structure and MnMOF with a spherical structure, the photocatalytic material with the baseball-shaped structure takes FeMOF with a rod-shaped structure as a substrate, and MnMOF with a spherical structure grows on the FeMOF with the rod-shaped structure; and the MnMOF with the spherical structure contains acetate ions. The preparation method comprises the following steps: dissolving an iron source and a manganese source in a solvent, adding an organic ligand, carrying out ultrasonic treatment, and carrying out a hydrothermal reaction; the manganese source is manganese acetate tetrahydrate. According to the photocatalytic material with the baseball-shaped structure, MnMOF with the spherical structure uniformly grows on FeMOF with the rod-shaped structure to form an electron and hole conversion channel, so that the electron and hole transmission rate is enhanced, the photocatalytic performance of the bimetal organic framework structure is enhanced, and the yield of photocatalytic synthesis ammonia is remarkably improved.

The invention provides a novel D-A-D type fluorescent probe material as well as a preparation method and application thereof. The fluorescent probe material has good stability, the preparation process is simple, and the synthesis condition is mild. Moreover, the D-A-D type fluorescent probe material has good solubility and stability, and a complex of the D-A-D type fluorescent probe material and zinc ions can identify pyrophosphate ions with high selectivity and high sensitivity. The interference of phosphate ions, hydrogen phosphate ions, dihydrogen phosphate ions, fluorine ions, chloride ions, nitrate ions, acetate ions, sulfate ions and carbonate ions is avoided; after the zinc ion complex of the D-A-D type fluorescent probe material is combined with PPi, the fluorescence intensity is remarkably enhanced, the D-A-D type fluorescent probe material has a higher signal-to-noise ratio, in-situ imaging detection of a target object in living cells or tissues is realized, the defects of a traditional molecule and ion detection method are overcome, and the D-A-D type fluorescent probe material is suitable for being widely applied to the field of biological imaging. # imgabs0 #

The present application relates to a kind of hypochlorite detection probe based on pyridine salt and preparation method thereof.The fluorescence probe structure is as shown in formula I.The fluorescent molecular probe of the present application is prepared from o-alkynyl aldehyde as raw material, by condensation reaction with pyridine salt.The probe synthesis method is simple, and the reaction condition is mild, and the yield of target compound is high.The fluorescent molecular probe described in the present application has stable optical performance, high sensitivity for hypochlorite detection, low detection lower limit, detection limit is 0.38 μM, response range is 5-200 μM.It has good selectivity, and has no response to fluoride ion, iodine ion, perchlorate ion, bisulfate ion, sulfate ion, acetate ion, thiocyanate ion, sulfur ion, etc.The fluorescent molecular probe described in the present application has practical application value in the field of biochemistry and environmental chemistry, especially the detection of hypochlorite ion in water, etc.

This invention discloses a baseball-shaped photocatalytic material, its preparation method, and its application, belonging to the field of photocatalytic ammonia synthesis technology. The baseball-shaped photocatalytic material comprises rod-shaped FeMOF and spherical MnMOF. The baseball-shaped photocatalytic material uses rod-shaped FeMOF as a substrate, with spherical MnMOF grown on top of the rod-shaped FeMOF. The spherical MnMOF contains acetate ions. The preparation method involves dissolving an iron source and a manganese source in a solvent, adding an organic ligand, and ultrasonically treating the mixture, followed by a hydrothermal reaction. The manganese source is manganese acetate tetrahydrate. This invention's baseball-shaped photocatalytic material, through the uniform growth of spherical MnMOF on rod-shaped FeMOF, forms an electron-hole conversion channel, thereby enhancing the electron-hole transport rate, improving the photocatalytic performance of the bimetallic organic framework structure, and significantly increasing the yield of photocatalytic ammonia synthesis.

The invention discloses a trigonelline metformin salt and a preparation method thereof, and the preparation method comprises the following steps: providing a resin column filled with anion exchange resin, treating the resin column with a salt solution for ion replacement activation to obtain an activated resin column, anions of the salt are chloride ions, bromide ions, acetate ions, malate ions, lactate ions, tartrate ions or citrate ions; enabling the trigonelline metformin iodized salt solution to pass through an activated resin column, and selectively collecting the exchanged solution; and carrying out concentration treatment on the collected exchanged solution to obtain the trigonelline metformin salt. In combination with a specific embodiment, compared with a trigonelline metformin iodate, the solubility of the trigonelline metformin salt prepared by the preparation method of the trigonelline metformin salt provided by the invention in water is greatly improved, so that the application range of the trigonelline metformin salt is greatly expanded.

To provide a method for oxidizing santalene to santalol that reduces the risk of accumulation of explosive intermediates or toxic substances, and enables safe scale-up to an industrial scale while achieving good selectivity for the desired product.SOLUTION: The starting material may be a mixture comprising alpha-santalene, beta-santalene, and the like. The oxidation of santalene proceeds via an intermediate chloro-santalene compound, and substitution of the chloro group by acetate ions yields a mixture of the corresponding santalyl acetates, which are hydrolyzed to yield a corresponding mixture of santalols represented by Formula (I), where R is a, b, c, d, or e as shown below.SELECTED DRAWING: None

The invention provides a system and a method for co-producing single-cell protein through electrodialysis treatment of organic wastewater and hydrogen oxidizing bacteria fermentation, the system and the method are divided into an anode chamber, a middle chamber and a cathode chamber through a cation exchange membrane and an anion exchange membrane, and the anode chamber and the cathode chamber are filled with organic wastewater; and the middle chamber is filled with a hydrogen oxidizing bacteria fermentation culture medium. Under the driving of an electric field, ammonium ions and acetate ions in the wastewater are selectively migrated to the middle chamber through the anion and cation exchange membrane respectively, and are efficiently utilized by hydrogen oxidizing bacteria as a nitrogen source and a carbon source to produce single-cell protein. According to the system, collaborative integration of an electrodialysis technology and a microbial fermentation process is successfully realized, nutrient substances in the organic wastewater are recovered and converted into single-cell protein with high additional value while the organic wastewater is purified, the treatment burden is effectively converted into protein resources, and the system has environmental benefits, economical efficiency and sustainability.

The invention provides a high-activity and high-durability iron oxide-based ortho-parahydrogen conversion catalyst and a preparation method and application thereof.The preparation method comprises the steps that an iron source, a high-magnetic-moment metal ion source and a solvent are mixed, and a mixed solution is obtained; positive ions in the high-magnetic-moment metal ion source are selected from one or more of manganese ions, cobalt ions and nickel ions, and negative ions in the high-magnetic-moment metal ion source are selected from one or more of nitrate radicals, chloride ions, sulfate radicals and acetate radicals; uniformly mixing the mixed solution and the load, and stirring under a heating condition until gel is obtained; and calcining the gel to obtain the iron oxide-based ortho-parahydrogen conversion catalyst. Iron oxide synthesized from an iron source is used as an active component of the catalyst, specific high-magnetic-moment metal ions are used as a doping agent, and the metal ions have more unpaired electrons outside nuclei, and can interact with unpaired electrons outside nuclei of Fe < 3 + > in the iron oxide after being doped into crystal lattices of the iron oxide, so that the metal ions are doped into the crystal lattices of the iron oxide. Larger conversion force is provided for ortho-parahydrogen conversion, so that the catalyst has higher catalytic activity.

The invention discloses a method for synthesizing high-purity super-crystal formamidine bromide (FABr), which is characterized in that the FABr is synthesized by means of anti-solvent addition and staged cooling, and the method comprises the following steps: (1) feeding for reaction; (2) extracting a crude product; (3) suction filtration and washing; (4) crystallizing and purifying; and (5) vacuum drying, through combination of a neutralization reaction and a recrystallization process, impurities such as metal ions and acetate ions can be effectively removed, the purity of a final product can reach 99.9% or above through verification, the method is short in process route and mild in reaction condition, the total yield can be stabilized to be 85% or above, the whole process is carried out at low temperature and in an inert atmosphere, thermal decomposition and oxidation of FABr are reduced, and the method is suitable for industrial production. The product has excellent thermal stability and storage stability, the FABr crystal obtained through temperature-controlled crystallization is uniform in size, easy to store and used for subsequent preparation of a perovskite precursor solution, used reagents are common, the cost is low, operation steps are simple, and industrial large-scale production is easy to achieve.

The invention discloses a composite material and a preparation method and application thereof.The preparation method of the composite material comprises the following steps that a first solution and a second solution are provided, the first solution comprises first metal carboxylate and a first solvent, and the second solution comprises alkali and a second solvent; at least one of the first solvent and the second solvent comprises a functional solvent, and the dielectric constant of the functional solvent at 20-40 DEG C is 15-80; and mixing the first solution and the second solution to obtain the composite material. According to the preparation method provided by the invention, the content of acetate ions in the composite material can be increased.

The invention discloses a curable additive containing a polymer monomer I and a perfluoroalkyl ionic liquid II, a high oxidation potential electrolyte containing the curable additive and a battery, the structural formula of the polymer monomer I is shown in the specification, wherein R1-R3 are selected from C1-C4 alkyl, alkoxy, halogenated alkyl or halogenated alkoxy, and the structural formula of the perfluoroalkyl ionic liquid II is shown in the specification. R4 is selected from alkylene groups or halogenated alkyl groups of C1-C6, and R5 is selected from alkyl groups or halogenated alkyl groups of C1-C2; the structural formula of the perfluoroalkyl ionic liquid II is shown in the specification, wherein X and Y are respectively and independently selected from one or more of imidazoles, pyridines, quaternary ammonium, quaternary phosphorus, pyrrolidines or piperidines, and R is selected from perfluoro-substituted C1-C10 alkylene; z <-> and Z < '-> are respectively and independently selected from one or more of halide ions, phosphate ions, perchlorate ions, sulfimide ions, oxalato borate ions, sulfonate ions and acetate ions. The invention constructs the high oxidation potential electrolyte and the battery with high safety and conductivity.

Provided is a functional feather comprising: a feather; and a metal salt, a quaternary ammonium salt, and an insect repelling component that adhere to the feather. The metal salt is formed from: ions of at least one metal selected from the group consisting of iron, cobalt, nickel, copper, zinc, platinum, silver, and gold; and at least one type of anion selected from the group consisting of chloride ions, bromide ions, fluoride ions, iodide ions, sulfate ions, hydroxide ions, nitrate ions, and acetate ions. The feather does not have a binder resin attached thereto or has attached thereto a binder resin at 1 mass% or less of the mass of the feather. The mite repellency rate measured in accordance with JIS L 1920:2007 8.2 glass tube method B is 50% or greater.

The invention relates to a copper alloy surface micro-etching solution and a preparation method thereof, and belongs to the technical field of micro-etching solutions. The copper alloy surface micro-etching liquid is prepared by taking a self-made supported phosphotungstic heteropolyacid catalyst, glacial acetic acid, a hydrogen peroxide solution, a buffer agent, a stabilizer and a corrosion inhibitor as raw materials, and the copper alloy surface micro-etching liquid is prepared by the following steps: firstly, synthesizing peracetic acid with higher oxidability by using the catalyst, hydrogen peroxide and glacial acetic acid; according to the micro-etching liquid, the copper alloy surface is etched under the weak acidic condition, the conductivity of the micro-etching liquid is further reduced, the purpose of inhibiting the galvanic effect of the copper alloy surface is achieved, in addition, due to the existence of a large number of acetate ions, the content of metal ions in the micro-etching liquid is very low, a pH buffer system exists, and the corrosion resistance of the copper alloy surface is improved. The influence of the overall oxidability of the micro-etching liquid along with the change of the reaction time is small, the etching effect is uniform, the concentration of a single component can be reduced through a hydrogen peroxide / peracetic acid compound system, and damage to a base material due to the too high single component is avoided.

This invention proposes a low-porosity, high-cycle solid-state electrode, the coating slurry of which includes a polymerizable composite electrolyte. The polymerizable composite electrolyte comprises a cyclic lactone-based ionic liquid with Formula I, a polymer monomer having at least one reactive active group, electrolyte nanoparticles, and an initiator. The cyclic lactone-based ionic liquid with Formula I has the following structural formula: [Formula omitted for brevity]. Where X is an oxocyclic group, Y... + The ionic liquid has a cationic group; R is any one of substituted or unsubstituted alkane, alkoxy, alkyl ester, unsaturated hydrocarbon, or cyclic hydrocarbon groups, and the substituent is selected from halogens; Z ‑ The ions are selected from one or more of halide ions, phosphate ions, perchlorate ions, sulfonylimide ions, oxalate-borate ions, sulfonate ions, and acetate ions. The low-porosity, high-cycle solidified electrode proposed in this invention improves the electrochemical performance of the electrode while reducing its porosity, thus obtaining a low-porosity, high-cycle solidified electrode.

The present invention relates to an iron nanocluster that can be designated using the formula "FeNC@HisAcAsc", having the following properties: - its surface is covered with a mixed layer comprising histidine (His), acetate ions (Ac) and ascorbate ions (Asc); - it is spherical; - it has a hydrodynamic diameter in the range of 0.6 to 2.0 nm, preferably less than 1.0 nm; - it has a metal core diameter in the range of 0.5 to 1.5 nm, preferably less than 1.0 nm; - the nanocluster exhibits a stability period in the range of 5 to 20 weeks when stored in liquid form at a temperature of 4°C; - the nanocluster exhibits a stability period of at least 12 months, preferably 12 to 18 months when stored in dry form at a temperature of 4°C under nitrogen; - it exhibits spectrophotometric characteristics in the UV-visible spectrum with a shoulder at 300±15 nm and in the fluorescence spectrum with an excitation wavelength of 364±15 nm and an emission wavelength of 415±15 nm. The present invention also relates to a method for preparing said iron nanoclusters and to their use in treating iron deficiency.

The invention relates to a synthesis method of a novel dual-wavelength off-on fluorescent molecular probe for identifying and detecting hypochlorite and application of the fluorescent probe in detection of hypochlorite. The structure of the fluorescent probe is as shown in a formula I. The fluorescent molecular probe disclosed by the invention is prepared by taking a water sample azine as a raw material and reacting with dimethylaminoformyl chloride. The synthesis method of the probe is simple, reaction conditions are mild, and the yield of the target compound is high. The fluorescent molecular probe is stable in optical performance, high in hypochlorite detection sensitivity and low in lower detection limit, the detection limit is 0.37 mu M, and the response range is 50-180 mu M. The selectivity is good, and no response is caused to fluorine ions, iodide ions, perchlorate ions, hydrogen sulfate ions, sulfate ions, acetate ions, thiocyanate ions, sulfur ions and the like. The fluorescent molecular probe provided by the invention has practical application value in the fields of biochemistry and environmental chemistry, especially detection of hypochlorite ions in water and the like.

A polishing composition for gallium oxide substrates and a polishing method, wherein the polishing composition contains silica particles, water, and polyvalent anions. The content of the polyvalent anions is 0.002 mole / liter or Jess in the polishing composition. The polyvalent anions include at least one kind of polyvalent anions selected from the group including sulfate ions, oxalate ions, citrate ions, and phosphate ions. The polishing composition for gallium oxide substrates additionally contains monovalent anions, and the content of the monovalent anions is 0.04 mole / liter or less in the polishing composition. The monovalent anions include at least one kind of monovalent anions selected from the group including nitrate ions, chloride ions, bromide ions, chlorate ions, bromide ions, acetate ions, formate ions, propionate ions, and butyrate ions. The polishing composition for gallium oxide substrates has a pH of 5.0 to 9.5 inclusive.

The invention provides an impurity removal method for ammonium chloride flash water, which comprises the following steps of: removing ammonia nitrogen from the ammonium chloride flash water: adjusting the pH value of the ammonium chloride flash water to be alkaline by using alkali, adding magnesium salt and phosphate to generate magnesium ammonium phosphate precipitate, stirring, crystallizing, standing, filtering and separating to obtain magnesium ammonium phosphate and filtrate for later use; and acetate ion removal of the ammonium chloride flash water: enabling the filtrate to pass through a resin column, and removing acetate to obtain the ammonium chloride flash water after impurity removal. In order to solve the problem that the ammonium chloride flash water is difficult to effectively treat, residual chloroacetate ions in the ammonium chloride flash water are removed by adopting methods such as activated carbon adsorption and ion exchange resin adsorption, and the ammonium chloride flash water is applied to an ammonium glyphosate aqueous solution, so that the treatment cost of the ammonium chloride flash water is greatly reduced; and a new thought is provided for the treatment of the ammonium chloride flash water.

The invention relates to the technical field of catalysis, and discloses a catalyst, a preparation method and application thereof, and a preparation method of dimethyl terephthalate. The catalyst comprises a polyester terephthalate carrier and an active component loaded on the polyester terephthalate carrier, the active component contains acetate ions and metal ions, and the metal ions are selected from at least one of IA group metal ions and IIB group metal ions. The catalyst can be conveniently and quickly separated from ester exchange and / or esterification products when applied to ester exchange and / or esterification reaction, is convenient to use for multiple times, and has relatively high catalytic activity; the product prepared by the catalyst has high purity and good hue.

This invention discloses an iodonium salt photoinitiator and its application in the preparation of treatment-free CTP thermal printing plates. The general formula of the iodonium salt photoinitiator is shown in Formula 1, wherein R1 is a substituted or unsubstituted alkyl or substituted or unsubstituted alkoxy group having 2-9 carbon atoms, and R2, R3, R4, and R5 are independently hydrogen atoms, alkyl groups, halogens, hydroxyl groups, carboxyl groups, amino groups, alkoxy groups, ester groups, nitro groups, and are tetraphenylboron ions, boron tetrafluoride ions, boron hexafluoride ions, phosphorus hexafluoride ions, arsenic hexafluoride ions, tellurium hexafluoride ions, halide ions, perchlorate ions, acetate ions, or trifluorosulfonate ions. The iodonium salt photoinitiator with the structure of this application can be used to prepare treatment-free CTP thermal printing plates, and can improve digital imaging speed and reduce crystals in the precursor of the formed negative lithographic printing plate. At the same time, the prepared treatment-free CTP thermal printing plate has excellent imaging speed and printing durability.

The present invention addresses the problem of providing: a polishing composition for polishing a gallium oxide substrate at a high polishing speed; and a polishing method therefor. [Solution] A polishing composition for a gallium oxide substrate, which contains silica particles, water, and multivalent anions, and wherein the content of the multivalent anions in the polishing composition is 0.002 mol / L or less. The multivalent anion is a multivalent anion including at least one type of multivalent anion selected from the group consisting of sulfate ions, oxalate ions, citrate ions, and phosphate ions. The polishing composition further contains a monovalent anion, and the content of the monovalent anion in the polishing composition is 0.04 mol / L or less. A polishing composition in which a monovalent anion is a monovalent anion including at least one type of monovalent anion selected from the group consisting of a nitrate ion, a chloride ion, a bromide ion, a chlorate ion, a bromide ion, an acetate ion, a formate ion, a propionate ion, and a butyrate ion. And the pH is from 5.0 to 9.5 (inclusive).

The invention discloses a preparation method of molten salt decomposition coated silicon nitride ceramic powder, which comprises the following steps: mixing a nitrate or acetate sintering aid containing crystal water, heating, and removing the crystal water; the method comprises the following steps: dissolving a nitrate or acetate sintering aid without crystal water in absolute ethyl alcohol, adding silicon nitride powder, ball-milling until the mixture is uniformly mixed, then drying through rotary evaporation, and crushing and sieving the mixture to obtain silicon nitride powder uniformly mixed with nitrate or acetate; calcining the obtained mixed powder again to remove nitrate or acetate ions in the mixed powder, converting the sintering aid into an oxide to coat the surfaces of the silicon nitride powder particles, and then sieving again. The method has the beneficial effects that the mixing problem is solved, the microstructure and performance are optimized, the liquid phase uniformity is improved, and the mechanical strength is improved.

The invention belongs to the technical field of spinning, and discloses a deep-eutectic solvent for animal protein / cellulose composite fibers as well as preparation and application of the deep-eutectic solvent. The eutectic solvent is formed by a hydrogen bond acceptor and a hydrogen bond donor; the molar ratio of the hydrogen bond acceptor to the hydrogen bond donor is 6: 1-13: 1; the structural general formula of the hydrogen bond acceptor is formula I, and X <-> is selected from one of chlorine, bromine and acetate ions; r is selected from short-chain alkane with unsaturated bonds. The eutecticevaporate solvent is used for preparing animal protein / cellulose composite fibers and serves as a solvent of animal protein and cellulose, and the composite fibers are prepared through spinning. According to the deep-eutectic solvent, competitive protective dissolution of animal protein and cellulose can be achieved, the milder dissolution process is promoted, dissolution is efficient, the obtained spinning glue solution is large in viscosity, filamentation is easy, and the composite fiber has excellent mechanical performance.

To provide a reduction catalyst having high initial activity.SOLUTION: A method for producing a reduction catalyst for nitrogen oxides of the present invention includes the steps of: preparing a mixture containing a titanium-containing oxide having a sulfur content of 2.5 wt.% or more in terms of SO4, an active metal component, an alkaline earth metal ion, an acetate ion, and water; molding the mixture to produce a molded article; drying the molded article to produce a dried article; and firing the dried article at 400°C.SELECTED DRAWING: None

The invention relates to the field of energy storage devices, in particular to a multifunctional aqueous zinc-iodine battery and an electrolyte thereof, and the multifunctional aqueous zinc-iodine battery comprises zinc ions and an electrolyte additive, the zinc ion source is zinc salt, and anions of the zinc salt are one or more of sulfate ions, acetate ions, nitrate ions, trifluoromethanesulfonate ions, perchlorate ions and the like; during working, the zinc-iodine battery is subjected to an I- / I2 / I + reversible oxidation-reduction reaction on the positive electrode side, and is subjected to Zn / Zn < 2 + > reversible dissolution / deposition on the negative electrode side. When Zn / Zn < 2 + > reversible dissolution / deposition occurs in the zinc negative electrode, through interaction of the electrolyte additive and Zn < 2 + >, crystal face growth of Zn metal (002) is promoted, hydrogen evolution reaction is inhibited, uniform deposition of zinc in the negative electrode is finally induced, and the cycle life of the negative electrode is prolonged. On one side of the positive electrode, the electrolyte additive interacts with other functional groups through a halogenated group to form a negative potential accumulation region, so that stable existence of I < + > ions is realized.

The invention relates to an iron nanocluster having the following features:-the surface of which is covered with a mixed layer comprising histidine (His), acetate ions (Ac) and ascorbate ions (Asc),-which has a spherical shape,-the hydrodynamic diameter of which is 0.6-2.0 nm, preferably less than 1.0 nm,-the metal core diameter of which is 0.5-1.5 nm, preferably less than 1.0 nm,-the metal core diameter of which is 0.5-1.5 nm, preferably less than 1.0 nm,-the surface of which is coated with a mixed layer comprising histidine (His), acetate ions (Ac) and ascorbate ions (Asc),-which has a spherical shape. The nanocluster has a stability duration of 5 to 20 weeks when the nanocluster is in liquid form and stored at a temperature of 4 DEG C, a stability duration of at least 12 months, preferably 12 to 18 months, when the nanocluster is in dry form and stored at a temperature of 4 DEG C and under nitrogen gas, and exhibits spectrophotometric properties, and the nanocluster has a stability duration of 5 to 20 weeks when the nanocluster is in liquid form and stored at a temperature of 4 DEG C and under nitrogen gas, preferably 12 to 18 months when the nanocluster is in dry form and stored at a temperature of 4 DEG C and under nitrogen gas. The iron nanocluster is characterized in that the shoulder peak in the UV-visible spectrum is located at 300 + / -15 nm, the excitation wavelength of the fluorescence spectrum is 364 + / -15 nm, the emission wavelength is 415 + / -15 nm, and the formula FeNC-HisAcAsc can be used for representing the iron nanocluster. The invention also relates to a method for producing these iron nanoclusters, and to the use thereof for combating iron deficiencies.

This application discloses a process for preparing high-purity tetraethylammonium hydroxide and the high-purity quaternary ammonium base produced therefrom, relating to the technical field of high-purity quaternary ammonium base production. The process for preparing high-purity tetraethylammonium hydroxide comprises the following steps: S1: preparing tetraethylammonium chloride, adding water to prepare an aqueous solution, and adding an adsorbent; preparing a pretreatment solution; the adsorbent containing acetate ions; S2: adding the pretreatment solution to the feed chamber of an electrolytic cell. Through electrolysis, tetraethylammonium cations pass through a cationic membrane into the cathode chamber, where they combine with hydroxide ions generated at the cathode to form tetraethylammonium hydroxide, thereby producing the quaternary ammonium base. This process for preparing high-purity tetraethylammonium hydroxide has the advantage of helping to improve the quality of quaternary ammonium base products.

The present application relates to the field of gas purification, discloses a kind of activated potassium base solution for removing carbon dioxide in oxygen-containing gas and application and carbon dioxide removal method.Activated potassium base solution for removing carbon dioxide in oxygen-containing gas includes potassium carbonate, amino acid activator, ionic liquid and water;Wherein, the anion in the ionic liquid is selected from at least one of acetate ion, lactate ion, amino acid salt ion.The activated potassium base solution described in the present application has high decarburization efficiency, is resistant to oxidative degradation, resistant to thermal degradation, has low toxicity, has little corrosivity to equipment, and is not prone to cause decarburization system blockage.

This invention discloses the application of lithium triacetate as a coating additive for cathode materials and its application in cathode materials. In this invention, lithium triacetate is used as a coating additive for cathode materials. On the one hand, triacetate ions can complex with metal ions on the surface of the cathode material, which is beneficial to the formation of the subsequent lithium-ion conductive layer. At the same time, it can also improve the stability of the coating layer and inhibit the peeling off of the coating layer. On the other hand, the use of lithium salt can prevent the direct use of triacetate from corroding the cathode material and damaging the material structure. It can also act as a lithium supplement agent to provide lithium ions to the cathode material, while avoiding the introduction of other metal ions and eliminating the adverse effects of other metal ions on the performance of the cathode material.

The invention discloses a high-voltage cross-linked perfluoroalkyl ionic liquid and application thereof in a battery. The high-voltage cross-linked perfluoroalkyl ionic liquid has a structure shown in a formula (1), wherein X and Y are independently selected from one or more of imidazoles, pyridines, quaternary ammonium, quaternary phosphorus, pyrrolidines or piperidines, and R is selected from perfluoro-substituted C1-C10 alkylene; z <-> and Z < '-> are respectively and independently selected from one or more of halide ions, phosphate ions, perchlorate ions, sulfimide ions, oxalato borate ions, sulfonate ions and acetate ions. The fluorine element is introduced into the ionic liquid structure through molecular design, so that the ion transmission, oxidation resistance and safety performance of the ionic liquid are improved, and the high-safety and high-energy-density solid-state battery is further prepared.