395 results about "Niobium oxide" patented technology

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 comprising a mixed niobium oxide, wherein the mixed niobium oxide has the composition M1aM2i-aM3bNbi2-bO33-c-dQd, wherein: M1 and M2 are different; M1 is selected from Mg, Ca, Sr, Y, La, Ce, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu, Zn, Cd, B, Al, Ga, In, Si, Ge, Sn, Pb, P, Sb, Bi and mixtures thereof; M2 is Mo or W; M3 is selected from Mg, Ca, Sr, Y, La, Cc, Ti, Zr, Hf, V, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu, Zn, Cd, B, Al, Ga, In, Si, Ge, Sn, Pb, P, Sb, Bi, and mixtures thereof; Q is selected from F, Cl, Br, I, N, S, Se, and mixtures thereof; 0<a<0.5; 0<b<2; −0.5<c<1.65; 0<d<1.65; one or more of b and d is >0.

The invention provides a boron nitride-containing resin composition and application thereof. The boron nitride-containing resin composition comprises a combination of a resin material and modified boron nitride, the modified boron nitride is prepared by the following method which comprises the following steps: mixing boron nitride and a sintering aid, sintering and crushing to obtain the modified boron nitride, the sintering aid comprises any one or a combination of at least two of calcium oxide, magnesium oxide, silicon oxide, yttrium oxide, niobium oxide and potassium feldspar. Through the design of a modification method, the modified boron nitride has a high filling rate in a resin material, and the boron nitride-containing resin composition containing the modified boron nitride not only has high thermal conductivity, but also has high peel strength and excellent adhesive property, so that the metal foil-clad laminated board has excellent comprehensive effects in the aspects of high thermal conductivity and high reliability.

The invention provides a molybdenum-based oxide sintered body, a sputtering target material containing the sintered body, and an oxide thin film formed by the sputtering target material. In the present invention, a specific dopant is added to a molybdenum oxide and a niobium oxide that are difficult to sinter in a prescribed content range, and it is possible to simultaneously ensure improved sinterability, high density characteristics, and uniformity, low reflection, and low resistance characteristics of a thin film obtained by controlling particle growth even if pressureless sintering is performed.

The invention relates to a red fluorescent material excited by blue light, an LED device and fluorescent ceramic. The chemical formula of the red fluorescent material is La (2-x) MgNbO6.5: xEu < 3 + >, wherein x is more than or equal to 0.01 and less than or equal to 0.1. The preparation method comprises the following steps: weighing lanthanum oxide, magnesium oxide, niobium oxide and europium oxide raw materials according to a stoichiometric ratio, grinding and uniformly mixing; sintering the uniformly mixed powder in a muffle furnace at high temperature, and cooling to room temperature to obtain the red fluorescent material. Compared with the prior art, the novel oxide-based red fluorescent powder prepared by the invention can emit positive red light of which the central wavelength is 616nm under the excitation of 465nm blue light, and can be used for white light LED (Light Emitting Diode) luminescent devices and fluorescent ceramics.

Energy storage cell (1) for storing electrical energy, wherein the cell (1) comprises a negative electrode (22) and a positive electrode (32) wetted with an organic anhydrous electrolyte (4), wherein the negative electrode (22) contains a negative active material composition comprising Nb2O5 particles and microporous carbon (MC) particles; wherein the positive electrode (32) contains a positive active material composition comprising largely LiMn 0.6 Fe 0.4 PO4 (LMFP) particles coated with a layer of niobium oxide (NbOx).

The invention relates to a p-type niobium oxide dipole-based metal-oxide-semiconductor device and a manufacturing method thereof, and belongs to the technical field of semiconductor device manufacturing. According to the technical scheme, the MOS device is provided. A gate dielectric stack of the MOS device sequentially comprises an interface layer, a high-k dielectric layer and a p-type electric dipole layer containing niobium oxide from bottom to top. According to the preparation method, the dipole layer is deposited by adopting an atomic layer deposition process, and then atoms in the dipole layer are driven to be diffused to the interface of the high-k dielectric layer and the interface layer through high-temperature rapid annealing treatment so as to form effective electric dipoles. Compared with the prior art, the high dielectric constant characteristic is utilized, the threshold voltage can be positively regulated and controlled to a larger extent, meanwhile, the increase of EOT is remarkably inhibited, and good interface quality is kept.

The invention belongs to the technical field of powder metallurgy. More specifically, the invention relates to a preparation method of ultrafine niobium oxide. The preparation method comprises the following specific preparation steps: taking 90-100 parts by weight of gelatin solution with the mass fraction of 3-5%, 60-80 parts by weight of fluorine niobate solution with the mass fraction of 10-15% and 4-10 parts by weight of aluminum salt solution with the mass fraction of 3-6%; mixing the fluorine niobate solution, the aluminum salt solution and the gelatin solution, and ultrasonically dispersing uniformly to obtain a mixed solution; dropwise adding a precipitant into the mixed solution in a stirring state to adjust the pH value to 9-10, continuously stirring and reacting, refrigerating and standing for 24-56 hours at the temperature of 2-6 DEG C, drying and crushing to obtain a crushed material; calcining the crushed material in an air atmosphere, and then cooling and scattering to obtain a calcined material; and pickling the obtained calcined material with hydrochloric acid, washing with water, and drying to obtain the ultrafine niobium oxide.

The invention relates to a desolventizing layer modified silicon-carbon negative electrode and a preparation method, the desolventizing layer modified silicon-carbon negative electrode comprises a silicon-carbon negative electrode, the silicon-carbon negative electrode comprises porous carbon mainly comprising mesopores and a silicon substrate attached in the pores of the porous carbon, and the desolventizing layer is covered on the surface of the silicon-carbon negative electrode. The desolventizing layer is an oxide of an amorphous active metal and a composite oxide of the amorphous active metal and lithium, the desolventizing layer at least covers the surface of the silicon substrate in the pores of the porous carbon, the desolventizing layer is made of amorphous titanium oxide, lithium titanate, niobium oxide, lithium niobate and titanium niobate, and after the electrolyte permeates into the pores of the porous carbon, the surface of the silicon substrate is coated with the desolventizing layer. And the lithium ions subjected to desolvation through the desolvation layer are alloyed with a silicon substrate. And the structural stability, the charge-discharge efficiency and the rate capability of the silicon-carbon negative electrode material are improved.

The invention discloses a nickel-based catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalyst synthesis. The nickel-based catalyst is prepared by an equivalent-volume impregnation method, a mechanochemical method and a deposition-precipitation method, the operation is simple, the cost is low, and the used raw materials are few; the method for regulating and controlling the selectivity of the prepared nickel-based catalyst to C4 olefin is simple and easy to implement, and the waterproof performance is good. According to the nickel-based catalyst, niobium oxide is used as a carrier, nickel is loaded on the niobium oxide carrier to catalyze heterogeneous ethylene oligomerization reaction, no co-catalyst is needed, the dispersity of loaded metal is effectively increased, carbon deposition and blockage are not prone to occurring in the reaction process, and the catalytic stability of the nickel-based catalyst for catalyzing the ethylene oligomerization reaction is improved.

The invention provides a titanium-based ceramic target material and a preparation method and application thereof.The titanium-based ceramic target material is prepared from, by mass, 96.4 wt%-98.3 wt% of titanium oxide and 1.7 wt%-3.6 wt% of doped oxide, and the doped oxide is prepared from, by mass, 0.8 wt%-1.5 wt% of niobium oxide, 0.5 wt%-1.0 wt% of tantalum oxide, 0.3 wt%-0.8 wt% of tungsten oxide and 0.1 wt%-0.3 wt% of aluminum oxide. According to the method, the high-performance titanium-based ceramic target material is prepared by adopting a normal-pressure sintering method through multi-element synergistic doping and dynamic regulation and control of the sintering atmosphere, the titanium-based thin film prepared by sputtering the titanium-based ceramic target material can form a laminated thin film structure with an indium tin oxide (ITO) thin film, and high conductivity, high visible light transmittance and high electron mobility are achieved; and the actual requirements in the field of silicon-based and perovskite solar cells are met.

The invention belongs to the technical field of photovoltaic target materials, and particularly relates to an indium titanium cerium niobium oxide ceramic target material, a preparation method and application thereof, and a transparent conductive oxide film. The indium titanium cerium niobium oxide ceramic target material comprises the following components: indium oxide, titanium oxide, cerium oxide and niobium oxide, the mass ratio of indium oxide to titanium oxide to cerium oxide to niobium oxide is 97-99: 1-0.3: 1-0.3: 1-0.2, the transparent conductive oxide film has high density, high purity and high strength, and the transparent conductive oxide film prepared from the transparent conductive oxide film has high carrier mobility, high conductivity and high light transmittance.

The invention discloses a hydrogenation catalyst as well as a preparation method and application thereof. The hydrogenation catalyst comprises a molecular sieve coated with a metal oxide layer and active metal loaded on the metal oxide layer; the metal oxide layer is selected from at least one of titanium oxide, zinc oxide, zirconium oxide or niobium oxide, and the active metal is selected from at least one of Pt, Pd, Ru, Ir or Ni. The catalyst provided by the invention is used in cinnamyl aldehyde hydrogenation reaction, and has good cinnamyl aldehyde conversion rate and cinnamyl alcohol selectivity.

The invention discloses an oxide electrode for a lithium ion battery and a preparation method of the oxide electrode, and belongs to the technical field of lithium ion batteries. The preparation method of the titanium-niobium oxide negative electrode material comprises the following steps: weighing corresponding titanium dioxide powder and niobium pentoxide powder according to the chemical dosage ratio of TixNbyO2x + 2.5 y, putting the titanium dioxide powder and the niobium pentoxide powder into a mortar, fully grinding, uniformly mixing to obtain a precursor, uniformly coating and flatly paving the precursor on a slide, putting the slide under laser heating equipment, and carrying out high-temperature sintering to obtain the titanium-niobium oxide negative electrode material. And finally, preparing the product into a pole piece assembled battery, and carrying out electrochemical test on the pole piece assembled battery. According to the method, the solid-phase synthesis time is remarkably shortened through laser heating, the rate capability and the cycle performance of the battery are improved, and the preparation efficiency of the material is improved on the basis of ensuring high-quality formed phase and fine and uniform particle size.

There is disclosed a highly efficient and economical catalyst for carbon monoxide (CO) oxidation at low temperatures, using a non-noble transition metal composition of copper oxide (CuO), cerium oxide (CeO2), and niobium oxide (Nb2O5). The catalyst, designated as 10CuCeNb, is synthesized via the wet impregnation method and is composed of with 10% CuO—CeO2 supported on Nb2O5. It shows a significantly improved performance with full CO conversion achieved at relatively low temperature of 150° C. It demonstrates high stability over a 12-hour reaction time. The activation energy (Ea) is 23.1 kJ mol−1, supporting low-temperature CO oxidation with minimal energy input. The catalyst's high activity and stability are attributed to the formation of oxygen vacancies and active Lewis acid sites generated from the synergistic interaction between CuO, CeO2, and Nb2O5. This catalyst offers a cost-effective alternative to noble metal catalysts for use in catalytic converters, effectively reducing CO emissions in industrial and environmental applications.

The invention provides a beneficiation-metallurgy combined comprehensive utilization process for dilute separation tailings, which comprises the following steps: carrying out ore grinding and flotation treatment on the dilute separation tailings to obtain fluorite rough concentrate and flotation tailings; magnetically roasting the mixed reducing agent and the flotation tailings, and magnetically separating to obtain magnetically separated rough concentrate and magnetically separated rough tailings; carrying out fine grinding and magnetic separation on the magnetic separation rough concentrate to obtain a magnetic separation iron concentrate product and magnetic separation concentrate tailings; the magnetic separation coarse tailings and the magnetic separation fine tailings are mixed, and then acid washing liquid and acid washing residues are obtained after acid washing and solid-liquid separation are conducted in sequence; and carrying out pressurized acid leaching, solid-liquid separation and extraction on the pickling residues to obtain scandium oxide and niobium oxide. By adopting the flotation-magnetizing roasting-magnetic separation-acid pickling-pressurized acid leaching combined process, the fluorite coarse ore, the iron ore concentrate, the rare earth leaching solution and the niobium-scandium leaching solution are obtained, the comprehensive utilization rate of the tailings is greatly increased, the discharge amount of the tailings is reduced, the acid consumption of tailings treatment is reduced, the environmental pressure is reduced, and the benefits of enterprises are improved.

The invention provides a method for extracting tantalum and niobium from tungsten tailings, and belongs to the technical field of rare metal recovery, and the method comprises the following steps: adding a reducing agent, a fluxing agent, a covering agent and a slag former into the tungsten tailings, and heating and smelting under the protection of inert gas to obtain an alloy ingot; the alloy ingot is crushed and then leached through hydrochloric acid, and acid leaching residues containing tantalum, niobium and tungsten are obtained; the acid leaching residues are subjected to alkaline leaching, and alkaline leaching residues containing tantalum and niobium are obtained; the alkaline leaching residues are leached through hydrofluoric acid and sulfuric acid, and decomposition liquid is obtained; and extracting and separating the decomposition liquid to obtain tantalum hydroxide and niobium hydroxide, and respectively calcining the tantalum hydroxide and niobium hydroxide to obtain tantalum oxide and niobium oxide. The method is simple in technological process, convenient to operate, low in cost and suitable for industrial production, tantalum and niobium can be efficiently extracted from tungsten tailings, and good economic benefits and environmental benefits are achieved.

The invention provides a preparation method of a niobium-based oxide negative electrode material with a three-dimensional hierarchical porous structure. The preparation method comprises the following steps: step 1, preparing precursor suspension slurry; the preparation method comprises the following steps: preparing a niobium oxide precursor according to a molar ratio, adding 0.4-5wt% of a dispersing agent, adding a water solvent to prepare a solution with the solid phase content of 10-40% in volume fraction, and putting the solution into a ball milling tank; stirring and grinding the solution; 2, freezing, forming and drying; vacuumizing in a vacuum drying box to remove bubbles in the solution, injecting the solution into a polytetrafluoroethylene tubular mold with the volume of 50-200ml, freezing in liquid nitrogen, and drying in a freeze dryer after the slurry is completely frozen; 3, high-temperature sintering molding; and calcining the dried sample in a muffle furnace in an air atmosphere, and naturally cooling to obtain the niobium-based oxide with the hierarchical pore structure. The uniformity of the negative electrode structure and the wettability of the electrolyte to the interior of the material are improved by regulating and controlling the pore channel distribution and the specific surface area, so that the rate capability and the cycling stability of the material are improved.

The invention discloses a niobium-titanium-silicon-carbon composite material, a preparation method and application thereof and a battery. The preparation method of the niobium-titanium-silicon-carbon composite material comprises the following steps: mixing porous niobium oxide, a silicon source and a solid electrolyte to obtain a silicon intermediate product; and granulating and screening the mixture of the silicon intermediate product, the nano-porous lithium titanate oxide and the carbon source to obtain the niobium-titanium-silicon-carbon composite material. The niobium-titanium-silicon-carbon composite material prepared by the invention shows excellent rate capability and cycle performance when being used as a battery negative electrode material, and the preparation method is simple.

The invention provides a niobium-tungsten alloy and a preparation method thereof. The preparation method comprises the following steps: 1) performing vacuum reduction sintering on a powder blank comprising niobium powder, first tungsten powder, first molybdenum powder and yttrium powder to obtain a niobium-tungsten-molybdenum alloy strip; (2) carrying out aluminothermic reaction on powder comprising niobium oxide, aluminum powder, second tungsten powder and second molybdenum powder to obtain a niobium-tungsten-molybdenum-aluminum alloy block; (3) the niobium-tungsten-molybdenum-aluminum alloy block is subjected to vacuum electron beam melting, and a niobium-tungsten-molybdenum alloy plate is obtained; 4) forming a smelting electrode by using the zirconium sheet niobium-tungsten-molybdenum alloy strip, the niobium-tungsten-molybdenum alloy plate and the niobium wire; and (5) the smelting electrode is subjected to vacuum electron beam smelting, and the niobium-tungsten alloy is obtained and comprises, by mass, 4.5%-5.5% of tungsten, 1.5%-2.5% of molybdenum, 1.4%-2.2% of zirconium, smaller than or equal to 0.08% of yttrium, 0.002%-0.02% of carbon, smaller than or equal to 0.2% of tantalum, smaller than or equal to 0.023% of oxygen, smaller than or equal to 0.015% of nitrogen, smaller than or equal to 0.002% of hydrogen and the balance niobium and inevitable impurities, and the inevitable impurities must contain yttrium.

The present application is directed to a catalyst comprising a layer of metal oxide nanoparticles; and a mesoporous silica-containing shell surrounding the layer of metal oxide nanoparticles, wherein the mesoporous silica-containing shell has an outer surface and an inner surface inside the outer surface, the outer surface having openings leading to pores extending through said mesoporous silica-containing shell to the inner surface, wherein the metal oxide is selected from a group consisting of zirconium oxide, hafnium oxide, titanium oxide, niobium oxide, cerium oxide, molybdenum oxide, scandium oxide, yttrium oxide, and lanthanum oxide. The present application is also directed to a method of making such catalyst and a method for catalytically hydrogenolyzing a polymer with the catalyst into solvent, naphtha, diesel, kerosine, base oil, or wax-like products.

Provided is a piezoelectric stack including: a substrate having a main surface with a diameter of 3 inches or more; and a piezoelectric film on the substrate, comprising an alkali niobium oxide containing K, Na, Nb, and O, wherein in the piezoelectric film, a composition of K, Na, and Nb satisfies a relationship of 0.94≤(K+Na) / Nb≤1.03 over an entire inner region of the main surface of the piezoelectric film, excluding its periphery.

The invention discloses a high-pressure-resistant lead barium titanate-based thermal sensitive ceramic and a preparation method thereof, and belongs to the technical field of material science, a core layer of the high-pressure-resistant lead barium titanate-based thermal sensitive ceramic comprises the following raw materials in parts by mole: 2-5 parts of lead tetraoxide, 25-39 parts of barium carbonate, 30-45 parts of titanium dioxide, 0.03-0.3 part of manganese oxide and 0.2-0.4 part of niobium oxide; the shell layer comprises the following raw materials in parts by mole: 1-15 parts of a barium compound, 5-20 parts of a titanium compound, 0-3 parts of a strontium compound, 0-5 parts of a calcium compound, 0.5-5 parts of zirconium oxychloride and 1-8 parts of a tin compound; the preparation method comprises the following steps: mixing the raw materials of the core layer, calcining at 1000-1100 DEG C, adding a deionized water solution of the raw materials of the shell layer, mixing, spray-drying, calcining at 950-1050 DEG C, adding a polyvinyl alcohol water solution, granulating, forming, degumming and sintering. The ceramic prepared by the preparation method disclosed by the invention has high voltage-resistant characteristic and excellent PTC (Positive Temperature Coefficient) effect.

The invention provides a low-grade high-silicon niobium concentrate sulfuric acid smelting method, and belongs to the field of niobium metallurgy. According to the method disclosed by the invention, niobium minerals are converted into water-soluble salts and rare earth minerals are converted into water-insoluble double salts by adopting an activating agent, concentrated sulfuric acid and low-temperature roasting, and the minerals after roasting are subjected to water leaching, so that separation of niobium from other insoluble impurities such as rare earth and silicate is realized; according to the process, a niobium leaching solution is subjected to impurity removal through a small amount of HF, and then is subjected to TBP extraction, reverse extraction and heat treatment to obtain a niobium oxide product with the purity being 99% or above; the filter residues containing the rare earth can be treated through alkali liquor to obtain rare earth hydroxide, and then the rare earth carbonate product is obtained through hydrochloric acid leaching, extraction and carbon precipitation processes. The method solves the problems that the Baotou low-grade high-silicon niobium concentrate is low in niobium leaching rate and sulfuric acid smelting cannot be industrialized, and has the advantages of being simple in process, high in element yield, low in production cost, energy-saving and emission-reducing.

The invention discloses a sulfur-loaded lamellar niobium oxide / niobium nitride-biomass derived porous carbon composite electrode material as well as a preparation method and application thereof, and belongs to the technical field of preparation methods of lithium-sulfur battery electrode materials, the method comprises the following steps: dispersing biomass derived porous carbon in an ethylene glycol solution dissolved with niobium pentachloride, and sequentially performing hydrothermal reaction to obtain the sulfur-loaded lamellar niobium oxide / niobium nitride-biomass derived porous carbon composite electrode material. The preparation method comprises the following steps: firstly, preparing a porous carbon composite material, calcining the porous carbon composite material, performing calcination reaction on the porous carbon composite material and melamine at the same time, finally mixing the porous carbon composite material with elemental sulfur, and performing heat treatment to obtain the sulfur-loaded lamellar niobium oxide / niobium nitride-biomass derived porous carbon composite electrode material. Lamellar niobium oxide / niobium nitride is utilized to increase polysulfide adsorption and catalytic conversion sites, a built-in electric field generated by constructing a niobium-based heterojunction is utilized to promote the electron transfer rate in the polysulfide conversion process, the electrode reaction kinetics is accelerated, and biomass derived porous carbon is utilized to improve the matrix conductivity and inhibit the shuttle effect of polysulfide, so that the conversion efficiency of the polysulfide is improved. The cycle performance and the service life of the lithium-sulfur battery are synergistically improved.

The invention discloses a hafnium oxide-based RRAM with a niobium oxide thermal enhancement layer and application, and belongs to the field of semiconductor memory devices. The hafnium oxide-based RRAM with the niobium oxide thermal enhancement layer sequentially comprises a top electrode, a niobium oxide layer, an HfO2 layer, an HfOx layer and a bottom electrode from top to bottom, and the niobium oxide thermal enhancement layer is inserted into the hafnium oxide-based RRAM, so that the forming voltage and the working temperature can be reduced, a storage window is also enlarged, and in the forming process, the storage temperature of the storage window can be increased. The growth direction of the conductive filament is effectively controlled; and the breaking point of the conductive filament can be effectively regulated and controlled in the reset process.

A method for preparing self-doped titanium-niobium oxide negative electrode material using a waste titanium dioxide carrier includes preparing self-doped TiNb2O7 negative electrode material for lithium-ion battery by using waste titanium dioxide carrier comprises the following steps: S1. converting a waste titanium dioxide carrier into TiO2 powder with the Ti content of ≥95% and the Al content of 0.1-4.0%, based on the weight of oxide, respectively; and S2. mixing the TiO2 powder and Nb2O5 powder to form a mixture, roasting the mixture, and collecting the generated Al self-doped TiNb2O7, so as to obtain the self-doped TiNb2O7 negative electrode material. According to the method disclosed by the present invention, impurities represented by TiO2 and Al2O3 in the waste titanium dioxide carrier can be directly recycled, a self-doped TiNb2O7 (titanium niobium oxide) negative electrode material.

The invention relates to the technical field of lithium ion batteries, in particular to a nickel cobalt lithium manganate positive electrode material and a preparation method thereof. According to the invention, the technical problems of poor cycle performance and low specific capacity of the existing nickel cobalt lithium manganate positive electrode material are solved. The preparation method comprises the following steps: synthesizing precursor powder by adopting a coprecipitation process; then carrying out high-shear mixing on the precursor, lithium hydroxide, nano niobium oxide and magnesium fluoride; after the mixed material is subjected to pre-oxidation and high-temperature oxygen-enriched gradient sintering, a gradient reduction etching process is adopted in the cooling stage, and strong wind quenching is matched for surface shaping; and finally, carrying out air jet pulverization and demagnetization to obtain the nickel cobalt lithium manganate positive electrode material. According to the method, lattice respiration stress is effectively dissipated by constructing a radial ordered structure, a bulk phase structure is stabilized through multi-element synergistic doping, interfacial ion transport kinetics is optimized through reduction-induced surface oxygen vacancies and a lattice distortion layer, and the synergistic strategy ensures high stability of the material structure and meanwhile, the material structure has a good application prospect. And the de-intercalation efficiency of the active lithium is greatly improved.

The purpose of the present invention is to provide a cationic electrodeposition coating composition capable of exhibiting high rust prevention properties even without subjecting a coated product to chemical conversion treatment.　The present invention provides a cationic electrodeposition coating composition containing (A) an aminated epoxy resin and (B) a niobium compound. The (B) niobium compound can be niobium oxide sol or niobium oxide colloidal particles obtained by stabilizing niobium oxide sol. The cationic electrodeposition coating composition according to the present invention may further contain: (C) a blocked polyisocyanate curing agent; (D) a rust preventive auxiliary agent selected from the group consisting of silica, a silane coupling agent, a titanium coupling agent, and a mixture thereof; (E) a phosphoric acid compound; or (F) a polyamidine compound. The present invention also provides a coated product obtained by using the cationic electrodeposition coating composition. The present invention further provides a coating method using the cationic electrodeposition coating composition.

Provided are an oxide sintered body mainly containing a molybdenum oxide, a sputtering target containing the sintered body, and an oxide thin film formed by the sintered body. In the present invention, by adding a specific (pseudo) metal oxide in a prescribed range to a molybdenum oxide and a niobium oxide which are difficult to sinter, the sinterability can be improved and high-density characteristics can be ensured even if pressureless sintering is performed.

The invention relates to the technical field of purification and impurity removal, and discloses a method for preparing low-antimony niobium oxide by removing antimony from a fluoroniobic acid solution, which comprises the following steps: adding peroxide into the fluoroniobic acid solution for complexing, then adding ammonia to adjust the precipitation pH value of the solution to obtain niobium salt precipitation, carrying out solid-liquid separation, and roasting to obtain the low-antimony niobium oxide. According to the method, the deep removal of antimony in the fluorine niobic acid solution can be realized, and the obtained niobium-containing peroxide complex can meet the requirements of preparing a 4N-grade high-purity niobium oxide product; the method does not need to consume expensive special reagents, only needs to consume part of peroxy ions, is low in cost and small in pollution, and is beneficial to product quality; the whole process is simple to operate, does not need other matched impurity removal equipment, is low in investment and short in flow, and is easy to realize continuous production.