325 results about "Ti oxides" patented technology

The disclosed Li-Mn composite oxide for positive of secondary Li cell comprises the core LiaMn2-bXbO4 and a coating layer, wherein 0. 97<=a<=1. 06, 0 <=b<=0. 5, X for other metal (except Li and Mn) or Si; the coating layer comprises one of more of Li-B composite oxide, Li-Co oxide, Li-V oxide, Al oxide, Al phosphate, Ti oxide, Cr. Oxide, Mg oxide, and Ca oxide This invention improves material performance, special the circulation performance at high temperature.

The invention discloses a method for preparing a composite Ag-Ti oxide antibacterial film by magnetron sputtering, mainly comprising the steps of: 1) carrying out pretreatment on the surface of film carrier base material, sequentially washing by more than two organic solvents and deionized water under the condition of ultrasonic wave, the washing time by using the organic solvents and the deionized water being 5-15min, and finally, drying at 15-85 DEG C for 0.5-3h under the vacuum condition; 2) arranging a metal Ti target and a metal Ag target on a magnetron sputtering device, taking argon as working gas, filling reaction gas containing oxygen into a vacuum chamber of the magnetron sputtering device, sputtering the metal Ti by an intermediate frequency magnetron sputtering power supply of the magnetron sputtering device, sputtering the Ag by the magnetron sputtering power supply, and obtaining Ag-Ti metal oxide composite coating film. The method is simple and efficient, and the obtained film has high uniformity, good dispersibility and strong adhesive force, so as to be taken as antibacterial material which has the advantages of broad spectrum, high efficiency, permanent antibacterial performance, safety and environmental protection.

The invention discloses a making method of Li-La-Ti oxide in the lithium ion battery domain, which comprises the following steps: adopting lithium nitrate, lanthanum nitrate and butyl titanate as raw material with molecular formula as Li3xLa2/3-xTiO3 (0<x<0.16); setting the molar rate of Li, La and Ti at 1: 1: 2; adopting alcohol or ethylene glycol monomethyl ether as solvent; or adjusting pH value under 1 through water and acetate; drying solution; sintering under 800-900 deg.c for 2h; obtaining pure LLTO. the invention shortens experimental period and synthesizing temperature with grain size about 200nm, which possesses excellent compact and electric property.

The invention discloses a method for preparing a spherical titanium oxide niobate anode material in a large scale by utilizing a spray drying method and application thereof to a lithium ion battery. The method comprises: 1, dispersing and dissolving a titanium source and a niobium source in an equal molar ratio in a solvent system, and sufficiently stirring to enable the titanium source and the niobium source to be uniformly dispersed; 2, spraying out the mixed solution in a spray dyer according to a certain flow, and drying obtained powder in an oven to obtain a precursor; 3, calcining the precursor in a high-temperature furnace in the air atmosphere at a temperature of 800 to 1,400 DEG C so as to obtain the spherical TiNb2O7 anode material. The spherical titanium-niobium composite oxide TiNb2O7 prepared by the method has excellent electrochemical performance, and has high coulombic efficiency and reversible capacity and excellent high-rate charge/discharge performance and safety performance when being used as a lithium ion battery anode material. The spherical titanium oxide niobate anode material is low in raw material cost, is non-toxic and harmless, and has a very wide application prospect.

A high-toughness steel welded with high linear energy (More than 50 KJ/cm) and resisting molten zinc corrosion is prepared through converter smelting at 1250-1320 deg.C, vacuum treating, and rolling at 1000-1180 deg.c or lower than 950 deg.C and cumulative drafts rate is greater than or aqual to 50%. It features that composite Ti oxide is used to resist high linear energy, the Nb, V, etc. and used for raising strength, and the Cu, Ni, B and RE are used to resist molten zinc corrosion. Its advantages are simple technology with high efficiency, low cost, and high performance of finished steel.

To provide a visible light responsible Ti oxide film which has hydrophilicity and antifogging property and is excellent in transparency and which has an ability to decompose gas by UV radiation, and a process for its production, as well as a Ti oxide film-coated substrate.

A Ti oxide film formed on a substrate, characterized in that when a voltage is applied to the Ti oxide film while the Ti oxide film is irradiated with light of a xenon lamp having a luminance of 100 mW/cm² and having ultraviolet light of less than 400 nm cutoff, the electric current value is at least 1,000 times the electric current value when the same voltage as said voltage is applied to the Ti oxide film in a dark place.

A process of preparing coating positive pole for electrolyzation. The coating positive pole bases Ti. Middle layer is oxide Ti. Outside layer is Pt or Pt-Ru oxidate. The coat can be obtained by way of electrochemical oxidation or heat decomposition.

The invention provides a high-activity nano-grade flue gas denitrification catalyst for removing nitric oxides in fuel gas under a low temperature condition, and a low-temperature liquid-phase preparation method of the high-activity nano-grade flue gas denitrification catalyst. The method does not relate to high-temperature roasting; and the prepared catalyst exists in a manner of a lot of amorphous state mixed oxides, and the activity is obviously improved. The high-activity nano-grade flue gas denitrification catalyst can be widely applied to selective catalytic reduction reaction of the fuel gas under an SO2-free or low-concentration SO2 environment of the fuel gas, so as to reduce the nitric oxides in the fuel gas into N2 and H2O. The catalyst takes a Ti oxide as a main component and is at least loaded with Mn-Ce-M-Ti-Ox of compound oxides of active components Mn and Ce, wherein M represents one or more elements of Fe, Co, Cu, Cr, Zr, Al and V; and the mol ratio of the elements is as follows: Ti: Mn: Ce: M is equal to 1: (0.005-1): (0.005-1): (0-0.3).

The invention relates to a honeycomb manganese denitration catalyst and a preparation method thereof. The method includes the following steps that manganese salt and a complexing agent are dissolved in water, titanium dioxide is added and stirred, ultrasonic dipping, drying and grinding are conducted, and Mn-Ti oxide solid particles are obtained, wherein the molar ratio of the manganese salt to the complexing agent is (65-187):1; metal salt and cerium salt are dissolved in water to obtain a mixed metal solution, wherein metal salt is at least one of ferric salt, cobalt salt, lanthanum salt, antimony salt and nickel salt; a pore-forming agent, an adhesive, an extrusion aid, a reinforcing agent, the Mn-Ti oxide solid particles and the mixed metal solution are mixed and formed into a honeycomb blank, and drying and forging are conducted. The catalyst is good in active component dispersity, is not easily sintered, good in pore structure, large in porosity and high in mechanical strength, the axial compressive strength of the catalyst is 4.7-5.1 MPa, and the radial compressive strength of the catalyst is 1.2-1.4 MPa. The porosity of the catalyst is 84-90%. The catalyst prepared through the method has relatively high denitration activity in the range of 120-250 DEG C and is suitable for low-temperature denitration.

The invention discloses a low-temperature catalyst. The low-temperature catalyst comprises one or more lanthanide series metal oxides and/or one or more transition metal oxides and/or one or more alkali or alkaline earth metal oxides, and also comprises copper and iron molecular sieve catalysts. The one or more lanthanide series metal oxides are selected from La, Ce, Zr and Nb oxides and have a use ratio of 1-50wt%. The one or more transition metal oxides are selected from Fe, Co, Ni, Cu, Mn, Zn, V, W, Mo and Ti oxides and have a use ratio of 1-50wt%. The one or more alkali or alkaline earth metal oxides are selected from Li, K, Cs, Ba, Sr and Ca oxides and have a use ratio of 1-30wt%. The copper and iron molecular sieve catalysts comprise aluminosilicate zeolite and/or aluminum phosphate molecular sieves. Through loading the one or more composite oxides on the copper and iron molecular sieve catalysts, the oxidizing agent for oxidizing NO into NO2 is obtained and reaction activity of whole SCR is improved.

A Cu/ceramic material joint according to the present invention is produced by joining a copper member comprising copper or a copper alloy to a ceramic member comprising AlN or Al2O3 using a joint material containing Ag and Ti, wherein a Ti compound layer comprising a Ti nitride or a Ti oxide is formed at the joint interface between the copper member and the ceramic member, and Ag particles are dispersed in the Ti compound layer.

A metal oxide having a sufficiently higher dielectric constant than silicon nitride, such as Ti oxide, Zr oxide, or Hf oxide is used as base material, and in order to generate a trap level capable of moving in and out electrons therein, a high-valence substance of valence of 2 or more (that is, valence VI or higher) is added by a proper amount, and to control the trap level, a proper amount of nitrogen (carbon, boron, or low-valence substance) is added, and thus a nonvolatile semiconductor memory having a charge accumulating layer is obtained.

According to the present invention, there are provided lithium titanate particles which exhibit an excellent initial discharge capacity and an enhanced high-efficiency discharge capacity retention rate as an active substance for non-aqueous electrolyte secondary batteries and a process for producing the lithium titanate particles, and Mg-containing lithium titanate particles. The present invention relates to lithium titanate particles with a spinel structure comprising TiO₂ in an amount of not more than 1.5%, Li₂TiO₃ in an amount of not less than 1% and not more than 6%, and Li₄Ti₅O₁₂ in an amount of not less than 94% and not more than 99% as determined according to Rietveld analysis when indexed with Fd-3m by XRD, and having a specific surface area of 7 to 15 m²/g as measured by BET method, a process for producing lithium titanate particles comprising the steps of adding and mixing a water-soluble lithium solution into a water suspension of an oxide of titanium having a BET specific surface area of 40 to 400 m²/g and a primary particle diameter of 5 to 50 nm and subjecting the resulting mixed suspension to aging reaction at a temperature of 50 to 100° C.; subjecting the resulting reaction product to filtration, drying and pulverization; and subjecting the obtained dry particles to heat-calcination treatment at a temperature of 550 to 800° C., and Mg-containing lithium titanate particles having a composition represented by the formula: Li_xMg_yTi_zO₄ wherein x, z>0; 0.01≦y≦0.20; 0.01≦y/z≦0.10; and 0.5≦(x+y)/z≦1.0, the Mg-containing lithium titanate particles having a BET specific surface area of 5 to 50 m²/g, a spinel single phase as a crystal structure, and a lattice constant (a) represented by a value of 0.050y+8.3595<a≦0.080y+8.3595 (Å).

A 590 MPa-class rolled steel shape of high strength and excellent toughness for use as a building structural member and a method of producing the high-tensile rolled steel shape are provided. Strength optimization by an alloy that elevates hardenability, texture refinement obtained by fine dispersion of Ti oxides and TiN owing to Ti addition, precipitation strengthening by Cu addition, and formation of a fine bainite texture by temperature-controlled rolling, cooling control and the like enable a high-strength, high-toughness rolled steel shape of high-strength and excellent toughness having mechanical properties of a tensile strength of not less than 590 MPa, a yield strength or 0.2% proof strength of not less than 440 MPa and a Charpy impact absorption energy at 0° C. of not less than 47 J, and method of producing the same.

In a flux-cored wire according to the present invention, CaF₂ and the like are included and a total amount thereof α is 3.3 to 6.0% in terms of mass % with respect to a total mass, Ti oxide and the like are included and a total amount thereof β is 0.4 to 1.2% in terms of mass % with respect to the total mass, CaCO₃ and the like are included and a total amount thereof is 0.1 to 0.5% in terms of mass % with respect to the total mass, and an amount of an iron powder in the flux is less than 10% in terms of mass % with respect to the total mass.

The flux cored wire comprises, with respect to the total weight of the wire, a Ti and a Ti oxide of 3.0 wt % to 8.0 wt % as calculated in terms of TiO2 content, a Si and a Si oxide of 0.5 wt % to 2.0 wt % as calculated in terms of SiO2 content, a metal Mn and an alloy of Mn of 1.5 wt % to 3.5 wt % as calculated in terms of Mn content, a carbon (C) of 0.02 wt % to 0.10 wt %, an Mg and an Mg oxide of 0.5 wt % to 1.5 wt % as calculated in terms of MgO content, a compound of Na2O and K2O of 0.2 wt % and less, a Zr and a Zr oxide of 0.1 wt % to 0.5 wt % as calculated in terms of ZrO2 content, and an Al and an Al oxide of 0.2 wt % to 0.8 wt % as calculated in terms of A12O3 content.

The invention discloses a catalyst for oxidizing and synthesizing dimethoxymethane by methyl alcohol. The catalyst for oxidizing and synthesizing dimethoxymethane by methyl alcohol consists of vanadium oxide serving as a main catalytic active component, titanic oxide serving as an auxiliary catalytic active component and auxiliary metallic oxide with the composition in mass percentage: 6-60wt% of V2O5, 40-95wt% of TiO2 and 0-55wt% of auxiliary metallic oxide. The catalyst for oxidizing and synthesizing dimethoxymethane by methyl alcohol, which is provided by the invention, has the advantages of simple method, mild reaction condition, good stability, easiness in reproducibility, and high dimethoxymethane selectivity and methyl alcohol conversion rate.

The invention relates to a novel vanadium-base SCR (selective catalytic reduction) catalyst for efficiently treating nitric oxides in diesel engine exhaust and a preparation method thereof and belongs to the technical field of emission of purified motor vehicle exhaust through a catalytic reduction method. The novel vanadium-base SCR catalyst comprises a first component and a second component, wherein the first component is selected from vanadium oxides, vanadium-erbium composite oxides and vanadium-iron composite oxides; the second component is selected from one or combination of titanium oxides, titanium-tungsten composite oxides and titanium-silicon composite oxides. The novel vanadium-base SCR catalyst is applied to a diesel engine exhaust after-treatment system in a form of coating the catalyst on cordierite honeycomb ceramics to serve as a honeycomb type catalyst. The invention also discloses a method for preparing the catalyst. The method comprises the following steps: preparing a first component through a precursor of the first component; loading the first component to the second component, and coating the component to the surface of the cordierite honeycomb ceramics. The catalyst has high-efficiency catalytic performance and environment friendliness.

The invention provides an ink composition and an application for the same. The composition contains titanium oxides shown in formula I: TiO2-sigma and a connecting material, wherein relative to 100 parts by weight of the titanium oxides shown in formula I, the content of the connecting material is 1-30 parts by weight. The invention further provides a product with a selectively-metallized surface and a preparation method for the same. The method comprises the following steps of: applying the ink composition on the surface needing to be metallized of an insulating base material, so as to form an ink layer; and plating one or more than two metal layers on the surface of the insulating base material with the ink layer by virtue of electroplating or chemical plating. Compared with the generally-used conductive precious metals, metal compounds in the ink composition provided by the invention are low in price, wide in raw material source, and capable of remarkably reducing production cost for signal components. The method for selectively metallizing the surface of the insulating base material provided by the invention is strong in universality, capable of being applied to insulating base materials with various sources, and simple and convenient in process.