15 results about "Strontium titanium oxide" patented technology

The invention provides a dielectric filler-doped solid electrolyte, a lithium metal battery and a preparation method, the dielectric filler-doped solid electrolyte comprises a polyether matrix, and the polyether matrix is formed by dispersing a lithium salt and a dielectric filler, the dielectric filler is two or more of barium titanate (BaTiO3), strontium titanate (SrTiO3), zirconium oxide (ZrO2), hafnium oxide (HfO2), titanium oxide (TiO2), cerium oxide (CeO2), zinc oxide (ZnO), lanthanum oxide (La2O3), aluminum oxide (Al2O3), tantalum oxide (Ta2O5) and yttrium oxide (Y2O3).

The present invention provides a thermosetting resin composition that yields a cured product (dielectric substrate) with excellent high dielectric constant and low dielectric loss tangent, a dielectric substrate made from the resin composition, and a microstrip antenna equipped with the dielectric substrate. [Solution] The thermosetting resin composition of the present invention comprises (A) a thermosetting resin, (B) a high dielectric constant filler, and (C) a coupling agent represented by the following general formula (1), wherein the high dielectric constant filler (B) comprises at least one selected from calcium titanate, strontium titanate, barium titanate, magnesium titanate, and titanium oxide. TIFF2026111704000022.tif16153

The disclosure regards a material for electrocatalytic oxygen evolution reaction (OER) comprising co-doped strontium titanite, wherein the co-dopants comprise at least a first transition metal (M1) and a second transition metal (M2) with the general composition Sr(Ti1-y-zM1yM2z)O3-δ, wherein the atomic fraction of titanium (1-y-z) is > 0.35.5

An air cathode and an aluminum-air battery, wherein the air cathode contains an active material, the active material being any one or a mixture of two of the following materials: nickel oxide, iron oxide, manganese oxide, lithium-ion nickel oxide, lithium-ion iron oxide, lithium-ion manganese oxide; strontium titanate doped with any one or two of iron, nickel, manganese, and lanthanum; calcium titanate doped with any one or two of iron, nickel, manganese, and lanthanum; magnesium titanate doped with any one or two of iron, nickel, manganese, and lanthanum; lanthanum nickelate doped with calcium and / or strontium; lanthanum ferrite doped with calcium and / or strontium; lanthanum cobaltate doped with calcium and / or strontium; lanthanum manganate doped with calcium and / or strontium; and graphite or metal carbonitride loaded with a metal.

The lead paste comprises a positive lead paste and a negative lead paste, the positive lead paste comprises modified cerium oxide, and the negative lead paste comprises carbon-coated strontium titanate and In2O3. The lead paste for the lead-acid storage battery for starting, provided by the invention, can be used for inhibiting active substances from falling off, remarkably improving the cycle durability of the lead-acid storage battery, delaying the passivation of a negative electrode and improving the ultra-low-temperature high-rate discharge capability of the lead-acid storage battery.

Capacitors that include an amorphous insulator layer can provide high capacitance density and low leakage. A capacitor may include two metal plates, a crystalline insulator material between the metal plates, and a thin layer of an amorphous insulator within the crystalline layer. The crystalline insulator material may be crystalline titanium dioxide, such as rutile, or a dielectric perovskite oxide, such as strontium titanium oxide or barium titanium oxide. The amorphous layer may be an amorphous oxide, such as amorphous titanium oxide, or a different oxide from the crystalline layer. The amorphous oxide layer may be sandwiched between two layers of the crystalline insulator. Alternatively, the amorphous oxide layer may be adjacent to one of the metal plates. The capacitors may be used in decoupling capacitors, memory, or for other applications.

The application relates to a preparation method of a strontium titanate heat source core block, which comprises the following steps: mixing strontium carbonate and titanium dioxide by adopting a wet mixing mode to obtain slurry; drying the slurry, and then performing first heat treatment to obtain a mixture; performing cold pressing forming on the mixture to obtain a green body; and performing second heat treatment on the green body to obtain the strontium titanate core block. In the preparation method, a strontium titanate conversion process is reduced to three steps of mixing, drying and heat treatment, so that the process flow is greatly shortened. Moreover, the cold pressing forming can be performed in an oil press, the related complex equipment and precise operation are omitted, and the production efficiency is improved.

The application provides a starting lead-acid storage battery lead paste and a starting lead-acid storage battery, and the starting lead-acid storage battery lead paste comprises positive lead paste and negative lead paste, the positive lead paste comprises modified cerium oxide, and the negative lead paste comprises carbon-coated strontium titanate and In2O3. The starting lead-acid storage battery lead paste provided by the application can inhibit active material shedding, significantly improve the cycle endurance of the lead-acid storage battery, delay negative electrode passivation, and improve the high-rate discharge capacity of the lead-acid storage battery at ultra-low temperature.

Capacitors that include an amorphous insulator layer can provide high capacitance density and low leakage. A capacitor may include two metal plates, a crystalline insulator material between the metal plates, and a thin layer of an amorphous insulator within the crystalline layer. The crystalline insulator material may be crystalline titanium dioxide, such as rutile, or a dielectric perovskite oxide, such as strontium titanium oxide or barium titanium oxide. The amorphous layer may be an amorphous oxide, such as amorphous titanium oxide, or a different oxide from the crystalline layer. The amorphous oxide layer may be sandwiched between two layers of the crystalline insulator. Alternatively, the amorphous oxide layer may be adjacent to one of the metal plates. The capacitors may be used in decoupling capacitors, memory, or for other applications.

The invention relates to the technical field of heat-conducting materials, in particular to high-stability heat-conducting gel and a preparation method thereof. The high-stability heat-conducting gel is prepared from a component A and a component B. The component A is prepared from, by mass, 8-16 parts of modified vinyl silicone oil, 55-95 parts of modified heat-conducting filler and 0.03-0.06 part of platinum catalyst. The component B is prepared from the following raw materials in parts by mass: 0.5 to 2.5 parts of hydrogen-containing silicone oil and 0.01 to 0.05 part of alkynol inhibitor; the modified heat-conducting filler comprises modified barium strontium titanate, modified silicon carbide whiskers and modified boron nitride. According to the high-stability heat-conducting gel, the problems that in the long-term use process of the heat-conducting gel, hardness is prone to rising, heat conduction is insufficient, and contact thermal resistance is large are solved, and in the long-term use process, the prepared high-stability heat-conducting gel can restrain hardness rising, maintain good flexibility and interface fitness, prolong the service life and meet the long-term heat dissipation requirement of high-power electronic components.

The application discloses a metal-doped mesoporous titanium dioxide composite material and a preparation method and application thereof. The material is prepared by the following steps: dropping a small amount of titanium chloride into ice to form a solution, stirring and adding a small amount of metal chloride (Cu, Fe), adding strontium chloride, dropping potassium hydroxide solution and stirring to obtain a slurry, placing the slurry into a high-temperature and high-pressure kettle, rapidly heating to 100-105 DEG C, heating for a period of time, washing the solution to neutral pH by centrifugation after cooling, and drying to obtain metal-doped strontium titanate. A small amount of metal-doped strontium titanate is taken into a high-pressure kettle, pure water and concentrated hydrochloric acid are added, the mixture is naturally cooled after high-temperature reaction for a period of time, the slurry after cooling is washed to neutral pH by a centrifugal machine, and the slurry is placed into a freeze dryer to be freeze-dried to obtain the mesoporous titanium dioxide composite material. The material can efficiently adsorb and remove pollutants (such as organic arsenic) in water, and realizes deep purification of water body organic pollutants.

The present invention provides a preferentially orientated electrode film and preparation methods thereof, relating to the technical field of thin film preparation, comprising a silicon-based substrate and a primary seed layer, a secondary seed layer and a bottom electrode layer grown sequentially on said substrate; said primary seed layer being an AxB1-xN film or an A3-xB1-xN film, wherein A═Cu, Fe; B═Pd, Pt; Ox1; in which said secondary seed layer is made of one or more of the following films: chromium nitride film, titanium nitride film, tantalum nitride film, magnesium oxide film; and said bottom electrode layer is made of one or more of the following films: a platinum film, a titanium nitride film, a gold film, a strontium ruthenate film, or a niobium doped strontium titanate film, which has a preferential orientation in the (00 / ) crystallographic direction, to solve the problem that the existing films with (00 / ) preferential orientations are not obtainable on a Silicon based substrate.

This invention provides a method and system for converting strontium nitrate in a high-level radioactive solution into strontium titanate, relating to the field of spent fuel reprocessing. The method includes: obtaining a high-level radioactive solution containing strontium nitrate; adjusting the mass concentration of strontium ions in the high-level radioactive solution to a first preset value to obtain a first solution; adjusting the pH of the first solution to a second preset value to obtain a second solution; obtaining an ammonium bicarbonate solution with a mass fraction of a third preset value according to the first preset value; obtaining a first preset amount of titanium dioxide powder according to the first preset value, and mixing the titanium dioxide powder and the ammonium bicarbonate solution to form a first mixture; placing the first mixture into the second solution for reaction, and obtaining a precipitate of strontium titanate. This invention achieves the conversion of strontium nitrate in a high-level radioactive solution into strontium titanate.

The application discloses application of a smearable high-conductivity flexible composite material and relates to the field of flexible composite materials, and comprises the following steps: preparing a composite conductive powder: SrCO3 powder and TiN powder are uniformly mixed and ground, pressed into a block, wrapped with graphite paper, buried and burned to prepare a titanium nitride and strontium titanate conductive composite block. The traditional perovskite material-based hard ceramic is prepared into a smearable conductive material similar to a chalk for the first time, and the material has a good smearable writing function. The titanium nitride and strontium titanate conductive composite block is ground to obtain the composite conductive powder. Preparing a high-conductivity flexible composite material: the titanium nitride and strontium titanate composite block is directly smeared on a flexible substrate or the composite conductive powder is attached on the flexible substrate to form the high-conductivity flexible composite material. The application of the smearable high-conductivity flexible composite material expands the application of the perovskite material in the field of flexible materials and promotes the development of inorganic oxide flexible conductive ceramics.

Disclosed is an electrostatic charge image developing toner including: toner base particles containing at least a binder resin and a magnetic material; and an external additive, wherein the binder resin contains a crystalline resin; and the external additive contains strontium titanate particles doped with metal elements other than titanium and strontium.