24 results about "Chemical formula" patented technology

The invention relates to a surface coating modified lithium ion battery cathode material and a preparation method thereof. The surface coating modified lithium ion battery cathode material has a general chemical formula of LiNi<1-a-b>CoaAlbO2/M, wherein a is more than 0.1 and less than 0.3, b is more than 0.01 and less than 0.2, and M refers to a coating layer. The material is coated by adopting a dry method; the coating layer refers to one or a mixture of two of lithium iron phosphate and lithium ferric manganese phosphate; and the mass ratio of the coating layer to LiNi<1-a-b>CoaAlbO2 is (0.01-0.2):1. The surface coating modified lithium ion battery cathode material and the preparation method thereof disclosed by the invention have the advantages that the stability of the cathode material is improved, and the safety performance of the material is improved; and moreover, in the dry-method coating process, waste liquor is not produced, high-temperature sintering is not needed, and the energy consumption and cost can be reduced.

An object of the invention is to provide a preparation process of a latent catalyst that can gives a latent catalyst, which can exert an excellent catalytic activity at the time of molding and therefore, can provide a resin composition having good curing property, fluidity and storage stability, in a short time in a high yield without mixing in ionic impurities. The present invention relates to a preparation process of a phosphonium silicate latent catalyst, comprising reacting (A) a proton donor represented by the following formula (1):

[Chemical Formula 1]

HY¹-Z¹-Y²H  (1)

[wherein Y¹ and Y² may be the same or different and each represents a group resulting from a proton donating substituent through release of a proton, Z¹ represents a substituted or unsubstituted organic group which bonds to the proton donating substituents Y¹H and Y²H, and two substituents Y¹ and Y² in the same molecule are capable of bonding to a silicon atom to form a chelate structure], (B) a trialkoxysilane compound and (D) a phosphonium salt compound represented by the following formula (2):

[wherein R¹, R², R³ and R⁴ may be the same or different and each represents an organic group having a substituted or unsubstituted, aromatic or heterocyclic ring or represents a substituted or unsubstituted aliphatic group and X⁻ represents a halide ion, a hydroxide ion or an anion resulting from a proton donating group through release of a proton], wherein the reaction is carried out in the presence of (C) a metal alkoxide compound.

A polymerizable monomer adopted to a display panel is represented as following chemical formula:

wherein, m≧0; “Z” is selected from oxygen, sulfur, carbonyl, caroboxyl, methyoxy, methylthio, thio, ethenylcarbonyl, carbonylethenyl, difluoromethoxy, difluoro methylthio, ethyl, difluoroethane, 1,2 difluoroethane, vinylene, difluoroethenylene, ethynyl, or single bond. “X₁” and “X₂” are independently selected from oxygen, sulfur, methyoxy, carbonyl, caroboxyl, -carbamoyl, methylthio, ethenylcarbonyl, carbonylethenyl, or single bond. “Sp₁” and “Sp₂” are independently a spacer or single bond. “P₁” and “P₂” are independently a polymerizable group.

A catalyst for production of propylene through catalytic dehydrogenation of propane adopts alumina-chrome oxide as a mixed carrier, metallic Pt as an active component and metallic Sn, La and Ca as assistants, the chemical formula of the catalyst is Pt-Sn-Ca/Cr2O3.Al2O3 and Pt-Sn-La-Ca/Cr2O3.Al2O3, and a mass ratio of Cr2O3 to Al2O3 in the mixed carrier is 2:1. A preparation method of the catalyst has the advantages of simple process and easy operation; a performance test result of the catalyst shows that the catalyst has high propane conversion rate, high activity, long service life and high propylene selectivity; and the initial conversion rate is about 48%, and the catalyst still has a high conversion rate of about 40% and high propylene selectivity of above 91% 4h later, so the catalyst has a great economic effect, and can be industrially popularized.

The invention provides a layered material for degrading iodine and the method for treating iodine-containing water, belonging to the water treatment technique. The inventive layered material is the layered bi-hydroxy composite metallic oxide LDHs and its sintered product CLDH, whose chemical formula is [M2+1-xM3+x (OH) 2] x+ (An-) x/2*yH2O). The invention has following advantages that: it can be directly used the LDHs into the treatment of industry acid iodine-containing waster water, or using its sintered product CLDH into the treatment of iodine-containing waste water, while said material can process the high iodine-containing drinking water to reach the standard iodine content of 10-125 ª

The invention relates to a novel preparation method of a useful decisive compound of Aluminum Magnesium hydroxy Carbonate serving as a therapeutic agent of gastrointestinal diseases as shown in chemical formula 1.

The invention provides a microwave ferrite material, a preparation method thereof and a microwave communication device. The chemical formula of the microwave ferrite material is Y2.95-xBi0.05CaxNi0.02SnxFe4.87-xO12, wherein x is greater than or equal to 0.05 and less than or equal to 0.15. The preparation method comprises the following steps: preparing raw materials according to a stoichiometric ratio that the molecular formula is Y2.95-xBi0.05CaxNi0.02SnxFe4.87-xO12 and x is more than or equal to 0.05 and less than or equal to 0.15, and preparing the microwave ferrite material from the raw materials. The microwave ferrite material 4pi Ms is controlled to be 1750-1850 Gs, has the advantages of small line width and low loss, and can well meet the application requirements of microwave circulators and isolators.

The invention discloses a preparation method of an anode material LiMxNiyMn2-x-yO4. The processes are as follows: (1) metering Li, Ni, Mn and salt doped with metal M according to the ratio of a chemical formula LiMxNiyMn2-x-yO4, putting the materials into a reactor, then adding water to form mixed solution, in the chemical formula, x is smaller than or equal to 0.3 and greater than or equal to 0, and y is smaller than or equal to 0.5 and greater than 0, metering fuel according to the molar ratio of the fuel to the Li being 0.5-2.5 to 1 and putting the fuel into a container; then adding water to form fuel solution; adding the fuel solution into the mixed solution; agitating for 5-10 hours at a normal pressure at 50-80 DEG C and heating to 90-95 DEG C to agitate until foaming, or directly agitating until foaming at the normal pressure at 80-95 DEG C to obtain precursor slurry; (2) inputting the precursor slurry into a fuel tower, atomizing the precursor slurry through high-pressure air, and burning the atomized precursor slurry under the action of the fuel and compressed air, wherein the combustion product is precursor powder; (3) carrying out tempering on the precursor powder for 1-10 hours at 600-1000 DEG C at the normal pressure, and then naturally cooling the precursor powder to a room temperature to obtain the LiMxNiyMn2-x-yO4.

The invention discloses a composite material for enhancing the photoluminescence of rare earth Er ions and a preparation method thereof. The composite material comprises an Er doped ferroelectric material and ZnO. The chemical formula of the Er doped ferroelectric material is xEr:0.94Bi<0.5>Na<0.5>TiO<3-0.06>BaTiO<3> (xEr:BNTBT for short), wherein x is the mole ratio of Er to BNTBT and is 0.0050, 0.0075, or 0.0100; and the mole ratio of ZnO to the Er doped ferroelectric material is 0.1, 0.2, 0.3, or 0.4. By doping rare earth Er ions into a ferroelectric material and further forming a composite material from the Er ion doped ferroelectric material and ZnO, the prominently enhanced photoluminescence of Er ions can be observed under the laser irradiation. Compared with other conventional methods, the provided composite material can prominently enhance the photoluminescence of rare earth Er ions.

The invention discloses a crystal material. The chemical formula is Mg11(HPO3)8(OH)6, the reflectivity in an ultraviolet-visible-near infrared band of 0.2-2.5 microns is 88% or above, and simultaneously the emissivity in a far infrared band of 2.5-25 microns is 0.90 or above. The invention also discloses a preparation method of the crystal material. The preparation method comprises the following steps: on the basis of raw materials of magnesium acetate tetrahydrate and phosphorous acid, simultaneously adding a cyclohexylamine template agent, and preparing the Mg11(HPO3)8(OH)6 crystal powder bya hydrothermal synthesis method. According to the crystal material provided by the invention, comprehensive performance of reflection and radiation can be well combined, the actual cooling effect is2-10 DEG C better than the common heat reflecting material titanium dioxide in the market, and the crystal material can be well applied to the field of heat reflection infrared radiation.

The invention relates to rare-earth-doped nitrogen oxide green fluorescent powder and a preparation method thereof. The nitrogen oxide green fluorescent powder has the chemical formula of Ba1-yLnxAl2-x-zSizO4-zNz: yEu<2+> (Ln is Y, La, Gd, Lu). The preparation method comprises the following steps: according to the stoichiometric ratio of the chemical formula, weighting raw materials, namely elementary substances, oxide or the corresponding salts of Si, Al, Ba and Ln (Ln is Eu, Y, La, Gd, Lu) and adding a fluxing agent; fully grinding, placing the powder into a sintering furnace and carrying out primary high-temperature roasting and secondary reduction sintering and then post treatment to obtain the final product, nitrogen oxide green fluorescent powder. By virtue of doping rare earth ions and adding the fluxing agent, the preparation conditions and light-emitting effect are improved, the nitrogen oxide green fluorescent powder is simple to prepare, free of pollution and low in cost, has strong excitation peaks from an ultraviolet region to a blue region, can emit bright green light under the excitation action of ultraviolet and blue lights and has potential application values on lighting and display aspects.

The invention provides a manufacturing process for improving the wear resistance of the outer circular surface of the plunger. The process is carried out according to the following steps: 1. blanking and rough machining; 2. finishing groove; 3. groove roughness treatment; 4. thermal spraying nickel-cobalt-chromium alloy powder; 5. post-processing; 6. quality inspection. The invention can make the plunger surface with a thicker wear-resistant layer, high surface hardness, corrosion resistance, small friction coefficient, long wear-resistant life, and the plunger base has concave grooves to protect the thermal sprayed powder alloy layer under the impact state No peeling or peeling, it adopts the manufacturing process of thermal spraying alloy powder on the surface of the plunger, which thickens the wear-resistant layer on the surface of the plunger, and has special requirements on the chemical composition and chemical formula of thermal spraying nickel-cobalt-chromium alloy powder , so that the wear resistance of the plunger surface can meet the technical requirements of high-pressure and large-displacement plunger pumps in oil fields.

The invention discloses comb polymer electrolyte and preparation and application thereof; the comb polymer electrolyte has a chemical structural formula shown as formula I that is shown in the description, wherein a is an integer of from 10 to 800, x is 0.2 to 0.8, ax is a positive integer, m is an integer of from 3 to 29, n is an integer of from 1 to 31, and R is hydrogen atom or methyl. The keychemical formula structure of comb polymer, keying mode of main and side chains, substitution rate, integral synthetic pathway setting for the corresponding preparation method and parameter conditionsof process steps are modified so that the main and side chains of the comb polymer are keyed via ion keys, and the problem that polyoxyethylene polymer electrolyte has high crystallinity and low lithium ion transfer capacity can be effectively solved.

The invention discloses a Zr-Fe alloy for tritium storage and a preparation method thereof. The chemical formula of the alloy is Zr2-xTixFe1-y-zNiyCoz, wherein x, y and z represent the atomic ratios of Ti, Ni and Co replacing Zr and Fe correspondingly, x ranges from 0.01 to 0.05, y ranges from 0.01 to 0.05 and z ranges from 0.01 to 0.03. The preparation method of the Zr-Fe alloy comprises the following steps that (1) preparation is carried out according to the chemical formula, a vacuum non-consumable electric-arc furnace is adopted for carrying out turnover smelting 3-5 times, and a cast ingot is prepared; and (2) the smelted cast ingot is heated again into a smelted state, magnetic stirring is carried out for 2-5 min. The alloy is hydrogen storage alloy low in balance pressure, and has the beneficial effects that the room temperature balance pressure level is lower than 1 Pa, the hydrogen (tritium) adsorption and desorption rate is high, the cycle life is long, hydrogen induced disproportionation is resisted, and the hydrogen (tritium) storage capacity is large. In addition, the preparation method of the Zr-Fe alloy is easy to operate, easy to achieve and high in efficiency, andcompared with a common ZrCo alloy and ZrNi alloy, the cost is lower.

The present invention relates to an immunoreaction measuring method for measuring an antigen or antibody contained as a subject substance in a sample, wherein the sample was mixed with at least one compound selected from the group consisting of dicarboxylic acids having a hydroxyl group, dicarboxylic acids having a double bond, straight-chain dicarboxylic acids expressed by the chemical formula (1): HOOC(CH₂)_nCOOH (n is an integer), and the salts of these dicarboxylic acids, and an antibody or antigen as a specifically binding substance capable of specifically binding to the subject substance, to obtain an acidic reaction solution, and then an antigen-antibody complex, generated by an antigen-antibody reaction of the subject substance with the specifically binding substance in the reaction solution was detected. This makes it possible to improve a measurement value and to relax a limitation of a measurement range due to a zone phenomenon that occurs in an antigen-excess region.

The invention relates to a two-dimensional layered germanium-vanadium-oxygen cluster compound and a synthesis method and application thereof.The chemical formula of the germanium-vanadium-oxygen cluster compound is [Zn (en) (H2O)] 4 [Zn (en) 2] 2 [Ge6V15O48]. 4.5 H2O. The preparation method of the germanium-vanadium-oxygen cluster compound comprises the steps that NH4VO3, GeO2, Zn (Ac) 2.2 H2O, terephthalic acid and 1, 2, 4-triazole are put into a polytetrafluoroethylene lining, then ethylenediamine and H2O are added, stirring is conducted for 20-35 min, and a mixed solution is obtained; and the mixed solution is placed in an oven at 140-180 DEG C to react for 3-6 days, cooling to room temperature, washing with distilled water, and filtering are carried out to obtain brown flaky crystals, namely the two-dimensional layered germanium-vanadium-oxygen cluster compound. The germanium-vanadium-oxygen cluster compound has antiferromagnetism, is a potential magnetic storage material, and can be applied to preparation of some magnetic materials.

The invention relates to a coordination-polymer magnetic material based on in-situ ligand reaction. The magnetic material adopts [Co(bmpth)](bpy)0.5 as a structure unit to form a three-dimensional network structure by Co-N bonds and Co-O bonds, protonated 4,4'-dipyridine is uniformly distributed in porous channels as guest molecules, the chemical formula is [Co(bmpth)](bpy)0.5, wherein bmpth represents benzimidazole dihydrazide ligand, and bpy represents protonated 4,4'-dipyridine. Simultaneously, the invention also discloses a preparation method of the magnetic material. The magnetic materialis good in stability.

The invention relates to the technical field of luminescent materials. A green zincate fluorescent powder has a chemical formula as follows M3Zn2-XO8: xMn2+, M is any one of Si, Ge, Ti, Zr, Sn and Te, and x is 0.001-0.1. The green zincate fluorescent powder has the advantage that more expensive rare earth elements are not contained, the powder has a wide excitation bandwidth having ultraviolet, violet light and blue light zones, emission peak overlapping with an ultraviolet chip is good, and the powder can be effectively excited.

The invention discloses a preparation method of strontium titanate (SrTiO3) ceramic with high dielectric constant and low dielectric loss. The main technical scheme is characterized by firstly takingSrCO3, TiO2 and Nb2O5 as raw materials, taking the materials according to a ratio of chemical formula expressed as SrTi(1-1.25)xNbxO3, carrying out wet ball milling, mixing and drying to obtain driedpowder, putting the dried powder in an electric furnace, calcining the dried powder for appropriate time under certain temperature and then taking the dried powder out, carrying out wet ball milling,drying and sieving to obtain fine strontium titanate ceramic powder; molding the powder by dry pressing, putting the powder in a high-temperature electric furnace, and sintering for 2 hours at the temperature of 1420-1480 DEG C to obtain the required strontium titanate ceramic. The prepared strontium titanate ceramic has excellent dielectric properties; the dielectric constant of the strontium titanate ceramic can be maintained at 296-303 and is equivalent to that of the ordinary strontium titanate ceramic; the maximum Q*f value is close to 7000GHz and is far higher than that of the ordinary strontium titanate ceramic. The method is simple in process, can easily achieve large-scale production, and has an extremely high practical value.

The invention provides an organic semiconductor material, the chemical formula of which is shown as the following. The organic semiconductor material contains triphenylamine, carboline and pyrene. Specifically, the triphenylamine has hole injection ability and transport property, the carboline has good electronic transport performance, and the pyrene has very high fluorescence quantum yield. Thus, the organic semiconductor material provided by the invention is a bipolar blue luminescent material with good hole transport and electronic transport abilities. The invention also provides a preparation method of the organic semiconductor material, and an electroluminescent device including the organic semiconductor material.

The invention relates to the field of fluorescent materials and discloses single matrix white LED (light emitting diode) white fluorescent powder. The chemical formula of the single matrix white LED white fluorescent powder is Ca8MgLu(1-y-x)(PO4)7:xCe<3+>,yTb<3+>; y is more than 0.01 and less than 1, and x is more than 0.01 and less than 0.1. The invention further discloses a preparation method and application of the single matrix white LED white fluorescent powder, the fluorescent powder still has relatively good absorption strength in an ultraviolet area, and the thermal stability is good.