400 results about "Lanthanide" patented technology

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

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 disclosure provides a metal oxide nanoparticle comprising a metal oxide, the metal capable of being a Lewis acid; a polymer comprising an ionisable moiety; and an amino acid; wherein a weight ratio of amino acid to 5 polymer is about 0.1:99.9 to about 99.9:0.1; wherein the amino acid is electrostatically interacting with the polymer; wherein the metal oxide comprises metal ions in a 3+ and 4+ valence state; and wherein the metal oxide is selected from lanthanide oxide and / or zirconium oxide. The present disclosure also provides a method of fabricating a metal oxide particle and use thereof.

The invention relates to a lanthanide oxide electrochemiluminescence aptamer sensor with dual signal amplification for detecting acetamiprid as well as a preparation method and application of the lanthanide oxide electrochemiluminescence aptamer sensor. According to the sensor, terbium-doped europium oxide (Eu2O3: Tb < 3 + >) modified by gold nanoparticles (Au NPs) is used as a luminous body, and the electrochemical luminescence performance can be remarkably improved through multiple mechanisms: on one hand, the Au NPs can effectively promote generation of more sulfate free radicals; on the other hand, the surface defect passivation effect and the efficient synergistic effect of energy transfer jointly achieve effective amplification of signals. In addition, the wool ball-shaped Ag NPs is used as a plasma resonance signal amplification source, so that the ECL intensity of the sensor is further enhanced. The prepared electrochemical luminescence sensor with the dual signal amplification effect is used for detecting acetamiprid (ACE), has a wide linear range and a low detection limit, and has a wide application prospect in detection of acetamiprid residues in a water environment.

The invention relates to the technical field of synthesis and processing of ceramic materials, and discloses a multiphase composite coated high-dielectric-constant ceramic material and a preparation method of the multiphase composite coated high-dielectric-constant ceramic material. 11%-13% of strontium titanate; 5%-7% of holmium oxide; 5%-6% of lead magnesium niobate; 6%-7% of titanium dioxide; 2%-3% of yttrium oxide; 3%-4% of magnesium oxide; 3%-4% of bismuth oxide; 2%-3% of lithium carbonate; 4%-5.5% of silicon dioxide; 1%-2% of zinc oxide; 2.5%-3.5% of manganese dioxide; 6%-7% of copper oxide; 3%-4% of glass powder; 0.05% to 0.08% of lanthanide series elements; through the steps of component pretreatment, ball milling and mixing, drying and sieving, forming, sintering and post-treatment, the component activity is improved through high-temperature calcination pretreatment, and directional growth of crystal grains in the components can be promoted by precisely controlled sintering temperature; the prepared ceramic material has the advantages of high dielectric constant, low dielectric loss, excellent densification effect and good mechanical property.

The invention relates to the technical field of materials, in particular to a graphdiynyl lanthanide series metal doped copper nano material and a preparation method and application thereof, and the preparation method comprises the following steps: preparing graphdiyne; in an inert gas atmosphere, graphdiyne, CuCl2. 5H2O, Dy (NO3) 3.5 H2O and ascorbic acid are subjected to a reaction in an aqueous solution, and the graphdiynyl lanthanide metal Dy doped copper nano material is obtained. Wherein the copper nano material is a cuprous oxide nano material. According to the prepared Dy-Cu2O / GDY, CO2 can be efficiently converted into C2H5OH through electrocatalytic reduction.

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.

The invention discloses a neodymium, gadolinium and erbium doped composite ceramic solidified body and a preparation method thereof, and belongs to the field of non-metallic materials. The ceramic solidified body is of a two-phase structure, and the two phases are pyrochlore and monazite; the composite ceramic solidified body comprises GdPO4, Er2Ti2O7 and NdErTi2O7, and the leaching rate of the composite ceramic solidified body is 10 <-7 > g.m <-2 >. D <-1 >. The preparation method of the solidified body comprises the following steps: by taking Zn2TiO4, CaHPO4, SiO2 and B2O3 as solidified body matrixes, adding lanthanide oxides Nd2O3, Gd2O3 and Er2O3, mixing, uniformly grinding, carrying out high-temperature solid-phase reaction on the obtained mixed powder, and naturally cooling to room temperature after the reaction is finished, so as to obtain the monazite phase and pyrochlore phase ceramic solidified body. The ternary multiphase ceramic solidified body has good mechanical performance and leaching resistance, the leaching rate of lanthanide series elements is in the order of magnitude of 10 <-7 > g.m <-2 >. D <-1 >, and the ternary multiphase ceramic solidified body has an excellent solidification effect and has reference significance for deep geological storage of high-level waste.

The invention discloses a near-infrared two-region dual-channel fluorescent nanoprobe as well as a preparation method and application thereof, and relates to the technical field of biomedical imaging. A nano probe A and a nano probe B included in the near-infrared two-region dual-channel fluorescent nano probe are both of a core-shell structure, two NIR-IIb fluorescent nano probes adaptive to different excitation wavelengths (808 nm and 980 nm) are constructed by precisely regulating and controlling the types and proportions of lanthanide elements, dual-channel imaging is achieved, limitation of a single excitation wavelength is broken through, spectral crosstalk is eliminated, and the near-infrared two-region dual-channel fluorescent nano probe has the advantages of high sensitivity, high sensitivity, high sensitivity and the like. The method has the characteristics of material uniformity and biological safety. The near-infrared IIb region dual-channel imaging system has the characteristics of high temporal-spatial resolution and signal separation, and has significant application value in the field of living body multi-target synchronous observation. Compared with a traditional two-photon microscope technology, the imaging method has a wider observation view field, a local craniotomy operation does not need to be carried out on an experimental mouse, and physiological trauma is remarkably reduced.

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.

The invention belongs to the technical field of negative electrode materials, and relates to a negative electrode material with titanium niobate coated with a lanthanide coating as well as a preparation method and application of the negative electrode material. According to the core structure design, a double-layer coating structure composed of two kinds of functional coatings is constructed on the surfaces of titanium niobate (TNO) particles, specifically, the inner layer is made of an electronic conduction type material, has high electronic conductivity and is used for enhancing the overall electronic transmission performance of the material; and the outer layer is a lithium ion conductor type material and is used for enhancing lithium ion diffusion, blocking side reaction and stabilizing an electrolyte interface. According to the double-layer structure, cooperative transmission of electrons and ions is achieved, the interface stability is improved through the chemical stability of the outer layer structure, side reactions and capacity fading in the circulation process are effectively reduced, and compared with a traditional single-layer coating or single doping method, the design has better comprehensive electrochemical performance.

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.

The application discloses an up-conversion fluorescent probe, an isoniazid detection method and a portable isoniazid detection sensor and belongs to the field of biological detection. The up-conversion fluorescent probe is composed of lanthanide-doped core-shell structure up-conversion nanoparticles subjected to acid pickling treatment and p-dimethylaminobenzaldehyde, wherein the core particle diameter of the up-conversion nanoparticles is 25.85-28.85 nm, and the shell layer thickness is 0.98-1.38 nm. The lanthanide-doped core-shell structure up-conversion nanoparticles are used as an energy donor, and the p-dimethylaminobenzaldehyde is used as a specific recognition molecule, and ratio-type fluorescence detection is realized through an inner filter effect. Isoniazid reacts with DMAAB to generate a Schiff base, which causes fluorescence quenching at 475 nm and no change in 655 nm fluorescence, so that the fluorescence color changes from blue to red. Due to the near-infrared excitation characteristics of the up-conversion nanoparticles, the up-conversion nanoparticles are not easily disturbed by background fluorescence, so that rapid quantitative detection of isoniazid in whole blood is realized, and the detection limit is as low as 2.4 μm. The application is simple in operation, strong in anti-interference and suitable for clinical individualized drug monitoring.

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 provides an environment-friendly lanthanide optical glass preparation process and device, and belongs to the technical field of optical glass processing. Comprising a main platform, a hot melting bin is arranged at the end of the main platform, a crucible is fixedly connected into the hot melting bin, a sliding way is formed outside the main platform, and a baffle is fixedly connected outside the sliding way. By arranging the main platform, the annealing assembly and the recovery assembly, traditional optical glass preparation processes are integrated on one production line, extra labor cost and time cost caused by repeated carrying of glass raw materials are reduced, the annealing process is dispersed into three mutually independent stages, and the production efficiency is improved. And rapid annealing treatment is carried out according to the characteristics of the glass material, and meanwhile, waste heat in the annealing cooling process is reasonably recycled, so that the purposes of reducing energy consumption of smelting furnace raw material preheating, smelting furnace raw material preheating, reducing carbon dioxide emission, reducing the consumption of cooling water of an annealing furnace, reducing water resource consumption and the like are achieved.

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 invention relates to a nickel-based superalloy comprising (in% by weight): 6.0% to 12.0% cobalt (Co); from 6.0% to 12.0% of iron (Fe); chromium (Cr) from 14.0% to 18%; up to 2.0% molybdenum (Mo); 2.0% to 5.0% of tungsten (W); from 4.0% to 5.5% of aluminum (Al); from 2.0% to 3.5% tantalum (Ta); up to 0.2% titanium (Ti); from 0.03% to 0.3% of carbon (C); from 0.005% to 0.03% of boron (B); from 0.005% to 0.03% of zirconium (Zr); from 0.005% to 0.5% of silicon (Si); 0.002% to 0.2% of a total content of Y, Sc, lanthanides and actinides; from 0.05% to 3.0% hafnium (Hf); up to 2.0% manganese (Mn); nickel (Ni) and unavoidable impurities.

The application aims to develop a lanthanide series modification strategy with wide application potential, which can form Q 1‑x‑y M x N y O 1.9 Lanthanide oxide coating layer, and form coherent nano precipitated phase between material layers, so as to realize the double modification effect of surface coating and interlayer-like doping. Due to this double modification, the cycle stability of the material is significantly improved, the voltage drop is effectively inhibited, and the structural stability is significantly enhanced.

The application discloses a lanthanide rare earth nano probe and a preparation method and application thereof, the probe is RENPs, the RENPs take NaNdF4:Yb@NaLuF4 as an imaging element, and the plerixafor is a targeting element.The application provides a lanthanide rare earth nano probe and a preparation method and application thereof, takes NaNdF4:Yb@NaLuF4 as an imaging element, and the small-molecule drug plerixafor is a targeting element, both are combined radiotherapy sensitization elements, a rare earth nano probe RENPs with good biocompatibility and stable NIR-Ⅱ luminescence is constructed, the probe can visualize breast cancer before radiotherapy, so that precise radiotherapy target delineation can be carried out, the sensitivity of tumor cells to radiation is improved during radiotherapy, so that the sensitivity of radiotherapy is improved, the anti-tumor immunity of the body is activated, and the treatment of the anti-PD-L1 immune checkpoint inhibitor in combination can effectively improve the immunotherapy responsiveness, and the prognosis of metastatic and recurrent triple-negative breast cancer patients who lose the opportunity of surgery is improved.

Aspects are provided for a UV-Vis calibration solution, composed of a lanthanide and an ionic liquid. In particular, the UV-Vis calibration solution may contain 4 to 12% by weight of Holmium (III), dissolved in an aqueous chloride solution. The disclosure also includes a calibration standard created from this calibrated solution, by placing the solution in a cuvette and capping it. The disclosure additionally includes a method of using the calibration standard to obtain a UV-Vis spectrum in the wavelength range of about 250 nm to 700 nm.

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):