123results about "Titanium oxides/hydroxides" patented technology

The invention belongs to the field of lithium ion battery raw materials, and particularly relates to a niobium-based composite material and a preparation method and application thereof. The composite negative electrode material is composed of a niobium-based framework material, a high-capacity material and a coating material. The niobium-based composite negative electrode material takes a porous niobium-based material as a framework, so that the characteristics of high stability, high safety and rapid charging and discharging of the niobium-based negative electrode material are kept; the high-capacity material is embedded in a niobium-based skeleton pore structure, so that the gram volume of the niobium-based material is improved, and meanwhile, the problem of rapid capacity attenuation caused by high volume expansion of the high-capacity material is solved; the coating material coats the surfaces of the niobium-based framework and the high-capacity material, and the high-capacity material is sealed in holes of the niobium-based framework material, so that on one hand, the conductivity of the niobium-based material can be improved, on the other hand, precipitation of the high-capacity material is inhibited, and the cycling stability of the composite negative electrode material is further improved. And the prepared niobium-based composite negative electrode material is simple in preparation process flow and has good adaptability to the preparation process of the existing lithium ion battery.

The present invention provides a material having a higher electromagnetic wave absorption capacity than in conventional electromagnetic wave absorption materials. The present invention pertains to an energy absorption and release material characterized by comprising titanium suboxide represented by a compositional formula of TiOx (where x represents a number satisfying 1 ≤ x < 1.8), the specific surface area being 5 m2 / g or above and the average particle diameter / specific surface area equivalent particle diameter being 0.5 to 3.0.

The invention belongs to the technical field of nano barium titanate synthesis, and particularly relates to a method for synthesizing nano barium titanate by taking metatitanic acid recovered from a waste denitration catalyst as a raw material, which comprises the following steps: mixing the waste denitration catalyst with a concentrated alkali solution, and reacting in a colloid mill at normal temperature; transferring the reaction liquid into a high-pressure reaction kettle, filtering after the reaction is completed, and washing to be neutral to obtain alkaline leaching residues; fully mixing the dried alkaline leaching residues with a pickling solution, filtering, washing to be neutral, and drying to obtain nano metatitanic acid powder; the preparation method comprises the following steps: slowly adding a solution A obtained by fully stirring nano metatitanic acid powder and ethanol into a solution B obtained by fully mixing and dissolving a barium source and deionized water, continuously stirring, transferring the mixed solution into a high-pressure reaction kettle, and after the reaction is finished, washing, centrifuging and drying for multiple times to obtain the nano barium titanate powder. The H2TiO3 prepared by recycling the waste SCR catalyst is used as a raw material, the nano barium titanate powder with small particle size and high tetragonal phase is prepared through a hydrothermal method, and the method has the advantages of being low in cost, environmentally friendly and clean.

The present invention relates to a mixed oxide of titanium, niobium and lanthanum of formula (I): LiwTi1-xLaxNb2-yM1yO7-zM2z (I) in which: 0.03 ≤ x ≤ 0.08M1 and M2 are at least one element selected from the group consisting of V, Ta, Fe, Co, Ti, Bi, Sb, As, P, Cr, Mo, W, B, Na, Mg, Ca, Ba, Pb, Al, Zr, Si, Sr, K, Cs and Sn; 0 ≤ w ≤ 5, 0 ≤ y < 2 and 0 ≤ z ≤ 0.3. Figure for abstract: [Fig. 8]

The present invention is in the field of materials engineering and nanotechnology. More specifically, the present invention discloses: a functional premix comprising nanoparticles and a carrier or compatibilizer; a method of obtaining the premix; a method of altering the properties of a material; and a modified material formed with improved properties. Unexpectedly, the premix of the present invention can be used to alter the properties of different kinds of materials, such as polymers, metals, ceramic materials, and / or composites of different materials. The premix of the present invention has numerous advantages in terms of transportation, use, and incorporation of nanoparticles into different materials. In one embodiment, the present invention provides significant modification of the properties of polymers and, in fact, breaks the existing concepts in this technical field. In another embodiment, the present invention provides advantages in altering the properties of metals and / or ceramic materials.

The invention discloses nanoscale Ti2O3, a preparation method and application of the nanoscale Ti2O3 as a catalyst carrier, and belongs to the technical field of nano material preparation. According to the invention, a solid-phase synthesis method is utilized, nano titanium powder and nano titanium dioxide are used as raw materials, and the nano-scale Ti2O3 brownish black powder with uniform particle size distribution is controllably synthesized. Meanwhile, a series of noble metal supported catalysts are synthesized by taking the catalyst as a catalyst carrier. According to the invention, rapid synthesis of nanoscale Ti2O3 is realized, and the particle size of the prepared sample is uniform and is about 300nm. The preparation method has the characteristics of high efficiency, rapidness, low equipment requirement, simplicity, easiness in repetition, high product purity and capability of realizing large-scale synthesis. Meanwhile, the prepared nanoscale Ti2O3 is small in size and uniform, so that a catalyst prepared by taking the nanoscale Ti2O3 as a carrier has relatively good dispersity, shows excellent electrocatalytic activity, can be prepared into catalyst slurry with relatively high uniformity, and is suitable for the fields of electrochemical catalysis and energy conversion.

The purpose of the present invention is to newly provide a method for producing a thin film formed from a dense single layer film of a nanosheet. This thin film production method forms a thin film formed from a dense single layer film of a nanosheet.

The present invention provides a modified LiFePO4 positive electrode material, a preparation method thereof, a positive electrode sheet, and a lithium-ion battery. The preparation method comprises: step S1, mixing raw materials including FePO4 / C, a lithium source, a carbon source, and water, and then sequentially grinding, dehydrating, and pre-sintering to obtain a pre-sintered product; step S2, in an inert atmosphere, injecting raw materials including a transition metal ion source into the surface of the pre-sintered product by ion implantation to obtain an implanted product; and step S3, sintering the implanted product to obtain a modified LiFePO4 positive electrode material. The preparation method of the present application solves the problem of uneven coating of LiFePO4 positive electrode materials in the prior art. Therefore, the LiFePO4 positive electrode material prepared by the preparation method of the present application has excellent rate performance.

To provide a two-dimensional colloidal crystal structure having few defects in the crystal structure. A titania-containing layer 2 is formed on a substrate 1, and a two-dimensional colloidal crystal layer 4 is further formed thereon. This structure is produced by 1) forming the metal oxide layer 2 on the surface of the substrate 1 as the substrate preparation step (S1), 2) preparing a dispersion 6 of charged three-dimensional colloidal crystals 5 having a surface charge of an opposite sign to the surface charge of the metal oxide layer 2 as the colloidal crystal dispersion preparation step (S2), and 3) bringing the dispersion 6 of the charged three-dimensional colloidal crystals 5 into contact with the metal oxide layer 2 as the two-dimensional colloidal crystal formation step (S3).

The invention relates to active electrode materials and to methods for the manufacture of active electrode materials. Such materials are of interest as active electrode materials in lithium-ion or sodium-ion batteries. The invention provides an active electrode material expressed by the general formula M1aM22-aM3bNb34-bO87-c-dQd.

The present invention provides a method for producing fine particles with controlled particle size distribution, and an apparatus for producing fine particles. [Solution] The method for producing fine particles comprises a droplet formation step in which metal oxide powder with a particle size of 500 nm or less, as measured by the BET method, and a carbon source are supplied to a space with a temperature atmosphere above the reduction start temperature of the metal oxide powder but below the boiling point, thereby forming droplets of the metal oxide powder; a reduction step in which the metal oxide droplets formed by the droplet formation step are reduced by the carbon source; and a particle formation step in which the reduced metal oxide droplets are atomized.

The present invention relates to an active electrode material and a method for producing the active electrode material. Such materials are of interest as active electrode materials for lithium-ion or sodium-ion batteries. The present invention relates to a compound represented by the general formula M1 a Al 1-a M2 b Nb 11-b O 29-c-d Q d The active electrode material is represented by the formula:

To provide coating enabling formation of a coated film which has high light resistance, high transparency and uniform thickness even including titanic oxide.SOLUTION: Coating liquid of the invention includes: first surface processing particles in which first organic silicon compounds are coupled to surfaces of particles including titanic oxide; second organic silicon compound; a binder component; and organic solvent. The titanic oxide has rutile type crystal structure, and 3 to 10 mass% of first silicon compound SiX4 in terms of SiO2 is coupled to particle surfaces including titanic oxide. The second silicon compound R-(CH2)nSiX3 or a hydrolysate thereof is included in an amount of 0.3 to 2.0 in a molar ratio (second organic silicon compound / first organic silicon compound) to the first silicon compound, and in solid, silicon derived from the first and second silicon compounds is included in an amount of 2 to 20 mass% in terms of SiO2. (X is at least one selected from an alkoxy group, hydroxy group, and halogen, R is an acrylic group and methacrylic group, n is an integer from 1 to 8.) The organic solvent is a mixed solvent including; a low boiling point organic solvent S1 having a boiling point less than 95°C; and a high boiling point organic solvent S2 having a boiling point higher than or equal to 95°C, a mass ratio of them (MS1 / MS2) is 85 / 15 to 50 / 50. In addition, a mass ratio (MF / MB) between an inorganic oxide component (F) and a binder component (B) included in the first surface processing particles and in the second organic compound, is 45 / 55 to 95 / 5.SELECTED DRAWING: None

There is provided a blue pigment including titanium oxide. A volume-based cumulative 50% point particle diameter (D50) of the blue pigment is 20 µm or less, and an average thickness of particles of the blue pigment is 130 nm or greater and 170 nm or less. The blue pigment has a Ti atomic concentration of 25 at% or greater and 50 at% or less, and an O atomic concentration of 50 at% or greater and 75 at% or less, where the Ti atomic concentration is a total number of Ti atoms relative to a total number of Ti and O atoms, and the O atomic concentration is a total number of O atoms relative to the total number of Ti and O atoms as determined by an elemental analysis performed by energy dispersive X-ray spectroscopy (EDX).

The utility model relates to the field of gas inlet devices of tube furnaces, in particular to a distributed gas inlet device for a tube furnace. Comprising a furnace tube system, the furnace tube system comprises a furnace tube body, flanges are fixedly connected to the two ends of the furnace tube body, a heat insulation furnace plug is arranged in the furnace tube body, a distributed air inlet device is arranged in the heat insulation furnace plug, the distributed air inlet device comprises an air inlet pipe, and the air inlet pipe is installed in the heat insulation furnace plug. A flow guide base disc is installed at the end, close to the furnace tube body, of the air inlet pipe, a distributed air inlet disc is installed on the arc face of the flow guide base disc, a transmission shaft is installed in the distributed air inlet disc, a plurality of flow guide rotary pieces are installed on the arc face of the transmission shaft, and a connecting ring is installed on the arc face of the transmission shaft. The distributed air inlet device for the tubular furnace has the advantages that the uniformity and the stability of air inlet of the tubular furnace are improved, and the process effect and the product quality are improved.

Acidified metal oxides combined with non-acidified metal oxides used as a battery electrode active material.

The present invention provides a material having a higher electromagnetic wave absorbing capability than prior art electromagnetic wave absorbing materials. The present invention relates to an energy absorbing and releasing material characterized by comprising titanium oxide having, in the L*a*b* color system, an L* value satisfying 50 ≤ L* ≤ 90, and a b* value satisfying b* < 0.

The invention relates to the technical field of new energy, and discloses cobaltosic oxide, a preparation method and application thereof, a lithium cobalt oxide positive electrode material and a lithium ion battery. Firstly, a cobalt source is heated to a first calcination temperature in an oxygen-enriched environment at a first heating rate and is subjected to heat preservation for 5-10 h, and a first calcination product is obtained; the preparation method comprises the following steps: calcining a cobalt source in a first-stage calcining process at a first-stage calcining temperature, heating a first-stage calcining product to a second calcining temperature at a second heating rate in an oxygen-enriched environment, keeping the temperature for 1-3 hours, and naturally cooling to obtain the cobaltosic oxide, thereby obtaining the cobaltosic oxide through two-stage calcining and using relatively low temperature and heating rate in the first-stage calcining process. The low temperature and the low temperature rise rate are used for ensuring that part of cobaltosic oxide particles obtained through decomposition cannot grow too large, cobaltosic oxide is rapidly formed through the obviously-improved temperature rise rate and the higher calcination temperature in the second-stage calcination process, and then small-particle-size cobaltosic oxide is obtained.

A method is provided for inputting thermal energy into a fluid medium in a manufacturing method using at least one rotating device, comprising a casing having at least one inlet and at least one outlet, a rotor having at least one row of rotor blades arranged around a rotor hub attached to a rotor shaft, and a stator configured as an assembly of fixed vanes positioned at least upstream of the at least one row of rotor blades. The method imparts an amount of thermal energy to the flow of the fluid medium guided along a channel created inside the casing between the inlet and the outlet by a series of energy conversions that occur as the flow of the fluid medium passes through the fixed vanes and at least one row of rotor blades, respectively. The method comprises incorporating the at least one rotating device into a manufacturing facility configured to perform a material manufacturing method, such as producing titanium oxide, mineral wool, gypsum, wood pulp and paper, cathodes and anodes, or rapidly dried chemicals at a temperature essentially of about 500°C or above, and conducting an input amount of energy to the at least one rotating device incorporated into the heat consumption method facility, wherein the input energy includes electrical energy. Further provides rotating devices and related uses.

To provide structural color pigments that can be manufactured more inexpensively, and to provide a more inexpensive manufacturing method for such structural color pigments.SOLUTION: There is provided a structural color pigment comprising, in sequence, a flat substrate, a crystalline layer, and a nanorod layer containing multiple nanorods, wherein the crystalline layer contains metal oxides and the nanorod contains one or more selected from the group consisting of metal oxides, metal hydroxides, and metal oxide hydroxides, and an average tilt angle of the long axis of the nanorods is within the range of ±30 degrees relative to the plane of the flat substrate (0 degrees).SELECTED DRAWING: Figure 1

The invention discloses a comprehensive separation and extraction method for vanadium, titanium and iron in vanadium titano-magnetite, and belongs to the technical field of metallurgy. The method includes the following steps that acidolysis mother liquor rich in vanadium and iron and high-titanium slag with titanium as the main component are obtained through external field strengthening hydrochloric acid leaching; carrying out hydrochloric acid analysis on the acidolysis mother liquor rich in vanadium and iron to generate hydrogen chloride gas, adding a neutralizer, and carrying out solid-liquid separation to obtain high-vanadium slag and an acidic solution I containing free hydrochloric acid and ferric chloride; performing extraction and reverse extraction on the high-vanadium slag to obtain a high-purity vanadyl sulfate solution final product; removing calcium from the acid solution I containing free hydrochloric acid and ferric chloride and the raffinate to obtain an acid solution II containing free hydrochloric acid and ferric chloride; evaporating and concentrating an acid solution II containing free hydrochloric acid and ferric chloride, and then burning to generate a metal oxide mainly containing ferric oxide and hydrogen chloride gas; the high titanium slag and concentrated hydrochloric acid are subjected to enhanced reaction under the action of an external field, and titanium dioxide is obtained through calcination. The method can be used for efficiently and comprehensively extracting vanadium, titanium and iron, and has the advantages of high recovery rate, environmental protection property, economical efficiency and high-value utilization.

The present invention relates to a mixed oxide of titanium, niobium, and lanthanum of formula (I): LiwTi1-xLaxNb2-yM1yO7-zM2z (I) in which: 0.03 ≤ x ≤ 0.08; M1 and M2 are at least one element selected from the group consisting of V, Ta, Fe, Co, Ti, Bi, Sb, As, P, Cr, Mo, W, B, Na, Mg, Ca, Ba, Pb, Al, Zr, Si, Sr, K, Cs, and Sn; 0 ≤ w ≤ 5, 0 ≤ y < 2, and 0 ≤ z ≤ 0.3. Figure for abbreviation: [Fig. 8]

To provide a method for producing recycled titanium oxide capable of obtaining recycled titanium oxide which has a good powder hue, has a certain range of a primary particle diameter, has a small content of transition metal as impurity, has a good coating hue and has a high hiding rate, from a resin composition containing titanium oxide.SOLUTION: A method for producing recycled titanium oxide subjects a resin composition containing titanium oxide to overheat steam treatment at 550 to 1,000°C.SELECTED DRAWING: None

This application discloses an apparatus and method for preparing Ti3O5 powder materials. Belonging to the field of oxide functional powder material preparation technology, the method utilizes TiO2 powder as raw material, sodium chloride-potassium chloride-calcium chloride as electrolyte, zinc and / or tin as cathode, and a graphite rod as anode. A sandwich-type electrolysis system of "zinc-tin-TiO2 powder-chloride salt" is constructed through density differences to directly electrolyze TiO2 powder to prepare Ti3O5 powder materials. This apparatus and method significantly shorten the traditional Ti3O5 powder material preparation process, and the zinc-tin cathode and electrolyte can be reused, greatly reducing costs. The electrolysis process involves few side reactions, is environmentally friendly, and emits no harmful substances, resulting in high-purity Ti3O5 powder materials.

The invention relates to active electrode materials and to methods for the manufacture of active electrode materials. Such materials are of interest as active electrode materials in lithium-ion or sodium-ion batteries. The invention provides an active electrode material expressed by the general formula M1aM21-aM3bNb49-bO124-c-dQd.

The invention discloses a preparation device and method of a Ti3O5 powder material, and belongs to the technical field of preparation of oxide functional powder materials. TiO2 powder is used as a raw material, sodium chloride-potassium chloride-calcium chloride is used as an electrolyte, zinc and / or tin is used as a cathode, and a graphite rod is used as an anode; and a zinc-stann-TiO2 powder-chlorine salt sandwich type electrolysis device system is constructed through density difference, so that TiO2 powder is directly electrolyzed to prepare a Ti3O5 powder material. According to the device and the method, the traditional Ti3O5 powder material preparation process flow is greatly shortened, and the zinc-tin cathode and the electrolyte can be repeatedly used, so that the cost is greatly reduced; in the electrolysis process, side reactions are few, the reaction process is environmentally friendly, no harmful substance is discharged, and the prepared Ti3O5 powder material is high in purity.

To provide a method for producing recycled titanium oxide capable of obtaining recycled titanium oxide which has a good powder hue, has a certain range of a primary particle diameter, has a small content of transition metal as impurity, has a good coating hue and has a high hiding rate, from a resin composition containing titanium oxide.SOLUTION: A method for producing recycled titanium oxide subjects a resin composition containing titanium oxide to overheat steam treatment at 550 to 1,000°C.SELECTED DRAWING: None

The application discloses a titanium oxide / titanium carbide accordion-shaped composite structure and a preparation method and application thereof, and belongs to the technical field of material chemistry. The preparation method takes commercial titanium aluminum carbon (Ti3AlC2) as a raw material, obtains titanium carbide (MXene) as a precursor by using a traditional hydrofluoric acid etching method, and takes high-temperature water vapor as a surface control agent (etching agent). By controlling conditions such as the temperature and reaction time of the water vapor, an in-situ grown titanium oxide / titanium carbide accordion-shaped heterostructure material is obtained. Compared with a traditional MXene surface control method, the method is relatively environmentally friendly and clean, the reaction is simple and controllable, the operation is safe and non-toxic, the requirement for equipment is not high, and the method is expected to realize industrialization. The accordion-shaped titanium oxide / titanium carbide composite structure can be obtained by the preparation method, and has a better application prospect in secondary battery energy storage.

[Problem] To provide titanium oxide-based microparticles, etc., said microparticles maintaining a high refractive index and yet having a suppressed photocatalytic activity. [Solution] A method for producing a dispersion of zirconia-coated titanium oxide microparticles, said method comprising: (1) a step for preparing a dispersion (1) of titanium oxide microparticles; (2) a step for adding, to the dispersion (1), 1-50 parts by mass, in terms of the mass of ZrO2 per 100 parts by mass of the titanium oxide microparticles, of an aqueous peroxidic zirconic acid solution and then aging reacted microparticles (2a), which have been obtained by the reaction between the titanium oxide microparticles and the peroxidic zirconic acid, to thereby give a dispersion (2) of a zirconia-coated titanium oxide microparticle precursor (2b); and (3) a step for adjusting the solid component concentration of the dispersion (2) to 0.01-10 mass% followed by a hydrothermal treatment.

The invention discloses a preparation method of a titanium-aluminum composite material and a middle distillate hydrofining catalyst, and the preparation method comprises the following steps: S1, adding pseudo-boehmite and potassium dititanate into water, dispersing, sealing and standing; s2, under the stirring state, hydrochloric acid is dropwise added into the material obtained after standing in the step S1, then heating and constant-temperature acidolysis are conducted, and titanium-aluminum sol is formed; s3, adjusting the pH value of the titanium-aluminum sol to 9-10 to form gel, aging, washing with water, and filtering to obtain a titanium-aluminum composite material wet filter cake; and S4, adding diatomite, acetic acid and a lubricant into the wet filter cake, uniformly mixing, carrying out extrusion molding, carrying out vacuum freeze drying treatment, and roasting to obtain the titanium-aluminum composite carrier. The problems that a conventional TiO2 material used for preparing a hydrodesulfurization catalyst carrier is low in specific surface area and few in surface active sites, and a carrier prepared from single-component TiO2 is difficult to form and low in mechanical strength are solved.