221 results about "Lanthanide" patented technology

The invention belongs to the technical field of wastewater treatment, and particularly relates to a catalytic filler, a preparation method and application of the catalytic filler to treatment of organic matters in high-salinity wastewater through electrochemistry and ozone. Wherein the catalytic filler is prepared from the following components in percentage by mass: 5-10% of a carbon-coated high-entropy perovskite composite material, 10-15% of a binder and the balance of a carbon-based carrier; the carbon-coated high-entropy perovskite composite material is formed by compounding lanthanide series high-entropy perovskite oxide and carbon microspheres. The invention also provides a method for treating organic matters in high-salinity wastewater by using the catalytic filler through electrochemistry in cooperation with ozone. The electrochemical reaction and the ozone reaction are combined, a conductive three-dimensional electrode network is constructed by utilizing the catalytic filler, the cathode plate and the anode plate, the synergistic effect of the electrochemical reduction reaction and the catalytic ozonation in the oxidation process is promoted, the degradation of intractable pollutants by the ozone under the assistance of electrochemistry is realized, and intractable organic pollutant molecules are better decomposed.

The invention belongs to the technical field of refractory materials, and particularly relates to a mullite refractory material with high mechanical property and a preparation method thereof. The mullite refractory material is prepared by taking coal gangue, bauxite and fly ash as raw materials, and the three industrial solid wastes are converted into the refractory material with high additional value, so that the concept of circular economy is met. According to the invention, coal gangue, bauxite and fly ash are used as raw materials, CaF2, V2O5 and lanthanide rare earth oxide are used as sintering aids, the problems of insufficient mechanical properties and overhigh sintering temperature of the mullite refractory material prepared by purely using coal gangue, bauxite and fly ash as raw materials are solved, and the performance of the mullite refractory material can be greatly improved. CaF2 and V2O5 promote substance transport and grain growth, and rare earth oxide inhibits excessive growth of grains. The balance of'promotion 'and'inhibition' is favorable for forming a compact, fine, uniform and interlaced mullite crystal network, and meanwhile, the mullite crystal network has high strength and good toughness.

The invention discloses a preparation method of a lanthanide complex, which comprises the following steps: mixing lanthanide metal with an organic solvent under anhydrous and anaerobic conditions, introducing ammonia gas at-50 to-70 DEG C, reacting, and desolventizing under reduced pressure to obtain an intermediate; adding a ligand solution into the intermediate, reacting, and desolventizing under reduced pressure to obtain a crude product; and carrying out sublimation purification or rectification purification on the crude product to obtain the lanthanide complex (R1Cp) mLa (R2-N-C (R3) = N-R2) n. According to the preparation method, raw materials are easy to obtain, the process is simple, conditions are mild, the nuclear magnetic purity of the final product can reach 98% or above, the metal purity measured through ICP reaches 5N or above, the preparation method is suitable for industrial large-scale production, and the prepared high-purity lanthanide complex can meet the application requirements of high-end fields such as semiconductors.

The present application relates to a kind of methods for separating actinium from irradiated thorium target, belong to medical radioisotope manufacturing technical field, solve the problem that thorium element and lanthanide element impurity content in final actinium product in prior art is higher.The present application discloses a kind of methods for separating actinium from irradiated thorium target, first, irradiated thorium target is dissolved, then using cation exchange resin column, UTEVA or TK200 resin extraction column, DGA resin extraction column, LN resin extraction column four-stage series separation purification process, obtain final actinium product.Actinium is efficiently and selectively recovered, and the thorium element and lanthanide element impurity content in final actinium product is significantly reduced.

The present invention relates to a highly dispersible organic-inorganic hybrid nanoparticle radical scavenger having excellent low elution characteristics and reversible regenerability and to an electrode composition comprising same, the highly dispersible organic-inorganic hybrid nanoparticle radical scavenger comprising nanoparticles in which an oxide of cerium (Ce) and silicon (Si) and an oxide of at least one metal (M) selected from transition metals and lanthanides are combined, wherein the nanoparticles have at least one functional group selected from an alkylsulfonic acid group and a fluoroalkylsulfonic acid group.

Embodiments of this disclosure are directed to catalyst systems comprising a metal-ligand complex according to formula (I).

This invention provides a high-nickel ternary cathode material, its preparation method, and its applications. The high-nickel ternary cathode material comprises a composite core and a metal-organic coordination polymer coating layer on the surface of the composite core. The composite core includes a high-nickel ternary cathode material matrix and lanthanide metal phosphate particles dispersed in the matrix. The metal-organic coordination polymer in the coating layer is formed by the polymerization of nitrogen-containing organic ligands and their coordination with high-valence metal cations. This invention improves the bulk structural stability by pinning grain boundaries with lanthanide metal phosphates, while simultaneously providing interfacial protection using the metal-organic coordination polymer coating layer, effectively solving the problem of simultaneously achieving high cycle life and thermal stability in existing high-nickel ternary cathode materials.

An additive to lubricant, comprising or consisting of a metal complex with the formular (I): (I) wherein R is either PR1R2 or C-NR1R2 wherein in at least one of R1 or R2 comprises of optionally substituted alkanes with nine or more carbon atoms or R1 and R2 are inter-connected by optionally substituted hydrocarbon chains with at least nine carbon atoms, wherein L can be selected from a group consisting of one bidentate ligand, one monodentate ligand / or two separate monodentate ligands, where coordinating atoms are S, N, P and / or O and M is any lanthanide or a mixture of those, except Pm; a use of such compound and a lubricant mixture comprising such a compound.

The invention belongs to the technical field of nano biological materials, and particularly relates to a near-infrared two-region excitation and emission lanthanide nano fluorescent probe as well as a preparation method and application thereof. Lanthanide ions with near-infrared two-region absorption characteristics are used as sensitizers, nanocrystalline with a co-doped structure formed by the lanthanide ions and activator ions is used as a core, and a pure-phase matrix material shell layer which is the same as a core lattice is grown on the surface of a core particle in situ. The nano fluorescent probe can generate tunable near-infrared two-region fluorescence emission with the wavelength of 1000 to 3000 nm under the excitation of near-infrared light with the wavelength of more than 1000 nm. The near-infrared two-region excitation and emission characteristics of the nano fluorescent probe can provide higher tissue penetration depth and signal-to-noise ratio for in-vivo imaging. The nano fluorescent probe shows excellent performance in living body angiography, dynamic observation of intestinal tracts and multi-channel near-infrared two-region imaging, and has wide application prospects in the fields of biomedical detection, early diagnosis of diseases, surgical navigation and the like.

This application relates to catalyst systems and methods of making and using the same. Methods of making a catalyst system are provided that include contacting at least one aromatic hydrocarbon, at least one activator, at least one catalyst having a Group 3 to Group 12 metal atom or a lanthanide metal atom, and at least one catalyst support to form a first mixture. The methods include reducing the amount of aromatic hydrocarbon in the first mixture to form a second mixture having 1.5 wt% or less of aromatic hydrocarbon, based on the total weight of the second mixture. The methods can further include adding a saturated hydrocarbon to the second mixture to form a third mixture.

The invention discloses a lanthanide-doped Prussian blue positive electrode material and a preparation method and application thereof, and the preparation method comprises the following steps: mixing and dissolving sodium ferrocyanide and lanthanide metal salt to obtain a mixed solution; and under a protective atmosphere, dropwise adding the mixed solution into a mixed chelating agent salt solution through a peristaltic pump, and reacting to obtain the lanthanide-doped Prussian blue positive electrode material. The lanthanide metal in the lanthanide-doped Prussian blue positive electrode material occupies the Na site, the single iron source coprecipitation method is adopted for synthesis, the process concentration is uniform, the synthesized positive electrode material has fewer defects, the material structure is stable, the rate capability is excellent, the specific capacity is high, and the application prospect is very good.

To provide a photoresponsive material that solves at least one of the problems of conventional technology. [Solution] The material has a crystalline structure formed by crosslinking at least one lanthanide with an organic group having 1 to 3 carbon atoms, wherein the organic group contains at least carbon atoms which may be partially or entirely substituted with other nonmetallic carbon group elements, and oxygen atoms which may be partially or entirely substituted with other nonmetallic oxygen group elements. A photoresponsive material having a peak component in the range of 533 eV to 534 eV in the O1s spectrum obtained by hard X-ray photoelectron spectroscopy.

The invention relates to a rare earth metal tungstate nanosheet material as well as a preparation method and application thereof. The rare earth metal tungstate nanosheet material comprises a PO4 < 3->-LnWO4 nanosheet, and Ln is at least one of lanthanide series rare earth metals. The preparation method comprises the following steps: dissolving phosphotungstic acid and a precursor in a solvent, and stirring to form a solution; adding an organic amine ligand, and stirring to form a transparent solution; performing solvothermal reaction on the solution; and centrifuging, washing with ethanol and drying to obtain the rare earth metal tungstate nanosheet material. A solvothermal reaction method is adopted to successfully construct a two-dimensional sheet structure material formed by interweaving nanowires, the material has high specific surface area, abundant pores and excellent structural stability, and the problems that a traditional photocatalytic material is single in structure and insufficient in active site are effectively solved. The photocatalyst shows excellent degradation capability on various typical antibiotic pollutants, breaks through the limitation that most photocatalytic materials are only effective on single pollutants, and realizes relatively high pollutant degradation universality.

The application belongs to the technical field of steel metallurgy, and particularly relates to a high-strength non-quenched and tempered steel for automobile front axle and a production method thereof. The high-strength non-quenched and tempered steel for automobile front axle has the following chemical components and mass percentages: C: 0.23-0.28%, Si: 0.6-0.8%, Mn: 1.8-2.1%, Cr: 0.80-1.20%, Nb: 0.02-0.03%, Ti: 0.02-0.03%, Al: 0.010-0.030%, B: 0.004-0.006%, P: <=0.025%, S: 0.045-0.065%, lanthanide: 0.0003-0.0005%, N: 0.009-0.0130%, and the rest is Fe and inevitable impurities. The high-strength non-quenched and tempered steel for automobile front axle has low alloy cost of components, has cost advantages, and is beneficial to large-scale popularization and application.

The invention provides metal lithium surface protection slurry and a preparation method and application thereof, and the surface protection slurry comprises the following components by weight: 5-20 parts of a metal organic framework material (MOFs); 70 to 85 parts of a solvent; 3-6 parts of a conductive agent; 3-6 parts of a thickening agent; the MOFs material comprises an MOFs material taking a zinc-based metal matrix, a cobalt-based metal matrix, a vanadium-based metal matrix, an iron-based metal matrix, an aluminum-based metal matrix, a chromium-based metal matrix, a zirconium-based metal matrix or a lanthanide-series metal matrix as metal ions or metal cluster nodes, and the conductive agent comprises an organic polymer solid electrolyte material or an organic-inorganic composite solid electrolyte material. The surface protection slurry provided by the invention can form a protection layer with excellent lithium affinity, dendritic crystal resistance and stability on the surface of metal lithium.

Embodiments of this disclosure are directed to catalyst systems comprising a metal-ligand complex according to formula (I):

The application discloses a kind of detection flavonoid compound magnetic composite material, preparation, detection method and the application of preparation standard substance, belong to analytical chemistry technical field.Magnetic composite material includes magnetic nanoparticle core, double lanthanide series metal organic framework (MOF) first shell and covalent organic framework (COF) second shell successively coated on its surface, and phenylboronic acid group grafted on the surface of second shell.The material uses the specific covalent binding of phenylboronic acid and the characteristic ortho-diphenol hydroxyl group of flavonoid compound to realize efficient capture and enrichment;Through double lanthanide series MOF shell, promote energy transfer, COF shell provides high specific surface area and ordered diffusion channel, and magnetic core is convenient for rapid separation, which realizes high selectivity identification of flavonoid compound.The material has the advantages of high sensitivity, strong anti-matrix interference ability, rapid and simple detection, etc., and is suitable for accurate analysis of flavonoid compound in complex sample and development of related standard substance.

This invention discloses a bipyridine derivative for the separation of lanthanum and actinide and its preparation method, belonging to the field of organic synthesis technology. The method first dissolves bipyridine OSU in DMSO, then adds it to a reaction solution, and stirs at room temperature to obtain a homogeneous solution. Next, a crystallization solvent is slowly added to the mixed solution, and the precipitated crystals are sequentially filtered, washed, and dried to obtain the bipyridine derivative. The bipyridine derivative is 6,6'-bis(N-hydroxyethylformyl)-2,2'-bipyridine or 6,6'-bis(N-hydroxybutylformyl)-2,2'-bipyridine. The target product synthesized by this method has good solubility in water, effectively improving the product's dispersibility. After complete dissolution, the product exhibits significant actinide ion selectivity due to the presence of a soft coordinating atom N in the ligand molecule, which allows it to complex with trivalent actinide ions more strongly than trivalent lanthanide ions.

The application provides a preparation method of a C8 aromatic hydrocarbon isomerization catalyst, which comprises the following steps: 1) mixing and forming EUO zeolite and a binder precursor into a carrier, and preparing a hydrogen type carrier after roasting and ammonium exchange; 2) performing composite modification treatment, which comprises hydrothermal treatment, acid treatment, and co-impregnation treatment using one or more compounds containing group IIIA-VIA elements or lanthanide series elements and a compound containing group VIII metal; 3) drying, roasting and reducing the solid to prepare the C8 aromatic hydrocarbon isomerization catalyst; and the application also provides the C8 aromatic hydrocarbon isomerization catalyst prepared by the above method, which comprises a carrier containing 5-35 mass% of EUO zeolite and 65-95 mass% of a binder, 0.02-0.15 mass% of one or more than two of group IIIA-VIA elements or lanthanide series elements, and 0.1-0.5 mass% of group VIII metal, which are calculated based on the carrier. When the catalyst prepared by the method is used in the C8 aromatic hydrocarbon isomerization reaction, the isomerization activity and the ethylbenzene conversion rate are obviously improved, and the aromatic hydrocarbon loss rate is low.

The present application relates to the technical field of water-soluble fertilizer, and particularly relates to a trace element water-soluble fertilizer and a preparation method thereof.The fertilizer is composed of the following components in weight units: 200 g; 58.21 g; 200 g; 110 g; a lanthanide metal organic framework (MOF) 20 g; the fertilizer is diluted to 1 L, and the pH value of the system is 4.0.The present application introduces lanthanum into the trace element water-soluble fertilizer to modulate MOF-808, and utilizes the high-pore structure of MOF-808 to realize efficient loading and slow-release controlled release of nutrients such as zinc, copper, manganese and iron, thereby significantly improving the nutrient utilization rate and reducing the loss.The introduction of lanthanum not only optimizes the carrier performance, but also produces a synergistic effect with the trace and secondary elements, and experimental data confirms that the fertilizer can significantly promote the development of watermelon fruits, significantly improves the single fruit weight and yield per mu under the premise of not changing the fruit peel thickness, and has significant yield-increasing benefits and good physical and chemical stability.

A component for use in a semiconductor processing chamber is provided. A component body of a metal or metal alloy has a process facing surface. An intermediate aluminum oxide coating is on the process facing surface, wherein the intermediate aluminum oxide coating is at least 99% pure by weight and has a porosity of less than 0.1% by volume, and wherein the intermediate aluminum oxide coating has a first thickness. A process exposed layer is on the intermediate aluminum oxide coating, wherein the process exposed layer comprises at least one of yttrium, hafnium, zirconium, lanthanum, magnesium, and a lanthanide, and wherein the process exposed layer is at least 99% pure by weight and has a porosity of less than 0.1% and has a second thickness, wherein the second thickness is less than or equal to the first thickness.

The application discloses a kind of near-infrared benzothiadiazole dye sensitized rare earth upconversion luminescence nano-probes and preparation method thereof;Probe is composed of near-infrared benzothiadiazole dye and upconversion nanoparticle, benzothiadiazole dye is compounded with ligand-free lanthanide ion doped upconversion nanoparticle, and upconversion luminescence is enhanced.This application preparation method is simple, and it does not involve complex core-shell structure and energy migration process, benzothiadiazole dye is directly compounded with ligand-free rare earth nanoparticle, and upconversion luminescence nano-probe is formed, under the irradiation of 808nm laser, the emission spectrum of benzothiadiazole dye and the absorption spectrum of sensitizer ion in upconversion nanoparticle overlap, which can effectively enhance the upconversion luminescence intensity of nano-probe, and keep good light stability, keep more than 90% of initial luminescence intensity under the irradiation of 120 minutes excitation light.

This invention discloses a method for preparing highly stable gyromagnetic ferrites, belonging to the field of magnetic material preparation technology. The method includes formulation preparation, multi-stage sand milling and granulation, molding and sintering, composite structure preparation, and precision machining steps. The formulation consists of VIII-series, IIIB-series, lanthanide-series, IVB-series, and VIIB-series metal oxides in a specific molar ratio, with rare earth nano-additives added to enhance lattice stability. Uniform slurry particle size is achieved through two-stage sand milling and spray granulation. A curved sintering process is used to control the temperature rise and oxygen content to obtain a high-density green body. A yttrium iron garnet or dysprosium iron garnet functional layer is formed on the surface of the green body by magnetron sputtering, constructing a multi-layer composite structure. Finally, a conductive modification layer is formed on the surface through integrated laser cutting and chemical mechanical polishing. The gyromagnetic ferrite material prepared by this method exhibits high saturation magnetization, low high-frequency loss, and excellent thermal stability, making it suitable for 5G communication, radar, and high-frequency microwave devices.

The invention discloses an anti-surge ceramic capacitor material and a preparation method thereof, and belongs to the technical field of electronic ceramic materials. The material is prepared by taking high-purity barium titanate (BaTiO3) as a basic raw material and cooperatively doping lanthanide oxide (La2O3) and transition metal carbonate (MnCO3) as a grain boundary regulating agent through a solid phase method. The ceramic capacitor material is prepared from the following components in mol percent: 96 to 98 mol percent of BaTiO3, 1 to 2.5 mol percent of La2O3 and 0.5 to 2 mol percent of MnCO3, and the sum of the mol percent of all the components is 100 percent. According to the invention, La < 3 + > and Mn < 2 + > are synergistically segregated on a grain boundary, so that a compact grain boundary layer is formed, grains are refined, defects are inhibited, and the surge breakdown resistance (greater than or equal to 10 kV / mm) is remarkably improved. The material has a wide application prospect in surge frequency scenes such as an alternating current circuit and a power supply module.

One embodiment of a method for producing a chemical substance according to the present disclosure is a method for producing a chemical substance by converting a starting material in the presence of a catalyst to yield a product, the method including bringing the starting material into contact with the catalyst heated to 400°C or lower by irradiation with microwaves. The starting material and / or the product contains a reducing substance, and the catalyst includes at least one metal oxide selected from among compounds represented by general formula (1). 　General formula (1): MaMbO3 In general formula (1), Ma represents at least one metallic element selected from among the alkaline earth metals and the lanthanoids and Mb represents at least one metallic element selected from among Fe, Co, Ni, Mn, Cu, and Ti.

The invention discloses an ABS (Acrylonitrile Butadiene Styrene) composite material as well as a preparation method and application thereof. The ABS composite material is prepared from the following components in parts by weight: 87 to 99 parts of ABS resin, 0.5 to 5 parts of lanthanide oxide, 0.5 to 5 parts of liquid crystal polymer, 0.1 to 0.5 part of carbon nano tube, nano zinc oxide, organic dye molecules and a carbon-based nano material, the mass ratio of the nano zinc oxide to the organic dye molecules to the carbon-based nano material is (2-4): (3-5): (2-4); the total dosage of the nano zinc oxide, the organic dye molecules and the carbon-based nano material is 3-7 parts. According to the ABS composite material provided by the invention, the time required by laser marking is shortened, the definition of laser marking is improved, and the carbonization or yellowing phenomenon caused by local overheating of the surface of the material is avoided.

The application discloses application of a lanthanide metal crystal in preparation of a nonlinear optical device or a birefringent optical device. The lanthanide metal crystal is selected from La4O4Se3, Ce4O4Se3, Pr4O4Se3, Nd4O4Se3 or Sm4O4Se3. In the application, a specific lanthanide metal crystal is used in preparation of a nonlinear optical device, and a nonlinear optical device with sufficient nonlinear optical effect and a long infrared cutoff edge capable of covering an atmospheric transparent window of 8-14 microns is obtained.

This invention provides a lanthanum crown optical glass comprising the following composition based on cations: Si 4+ : 6-29%; B 3+ : 8-46.5%; La 3+ : 0-16%; Y 3+ : 0.2-15%; Ca 2+ : 0-16%; Sr 2+ 7-17%; Ba 2+ 0-4.5%; Zn 2+ 0-8.5%; Zr 4+ : 1-8.5%; Nb 5+ 0-3%; Ti 4+ : 0-2.3%; Sb 3+ 0-0.1%; all percentages are molar percentages. The lanthanum crown optical glass of the present invention has excellent crystallization performance, transmittance performance and chemical stability, low raw material cost, and excellent processing performance, making it suitable for secondary molding.

The invention provides a perovskite cell and a preparation method thereof, and a photovoltaic module, the perovskite cell comprises a substrate layer, a conductive function layer, a middle anchoring layer, a hole transport layer, a perovskite absorption layer, an electron transport layer, a conductive layer and a metal electrode layer which are stacked in sequence, and the material of the middle anchoring layer comprises lanthanide series metal salt. According to the invention, a multi-coordination structure is realized by utilizing extranuclear multiple electrons of lanthanide series metal salt and a self-assembled monomolecular layer, so that the adhesive force and uniformity of self-assembled monomolecules are improved, interface defects are improved, and the photoelectric efficiency of a photovoltaic module is further improved.

A soil fertilizer composition and method of production, the soil fertilizer composition comprising a mixture by weight of 92% to 99% marine biomineral clay and 1% to 8% dehydrated aloe vera, wherein the marine biomineral clay comprises illite, apatite, amphiboles, chlorite, albite, and quartz. The composition is typically disposed in a dry powder form suitable for soil application or reconstitution with water for spraying but may be in a solid or a pre-dissolved form for transportation, storage, or for ready application. The soil fertilizer composition may further comprise an organic substrate selected from the group of: peat moss, sawdust, compost, and combinations thereof. The soil fertilizer composition may include dehydrated aloe vera is a 100x concentrate with aloin content less than 1.0 ppm. The marine biomineral clay of the soil fertilizer composition may contain lanthanides configured to act as cofactors for enzymes involved in nutrient cycling and plant metabolic processes.