563 results about "Lanthanide" patented technology

A solid electrolyte material and a preparation method therefor, a solid electrolyte, a semi-solid electrolyte, a positive electrode, and a battery. The solid electrolyte material comprises a compound represented by the following general formula: Aa(M1bM2c)Xd, wherein A comprises one or more of Li, Na, K, Cu and Ag, X is halogen, M1 is a main element, M1 is selected from among one of Ga, Y, In, Mg, Sr, Sc, Al, Fe, Zr, Hf, Ta, Nb, W, Mn, Zn, Co, Mo, Sn, Ca, Pb, Ti, Ru and a lanthanide metal element, M2 is a doping element, M2 comprises one or more elements of groups IIA, IIB, IIIA, IIIB, IVA, IVB, VA and VB, b is greater than the molar ratio of any element in M2, 0.5≤a≤5, 0.2≤b≤2, 0.2≤c≤2, d=a*ε1+b*ε2+c*ε3, ε1 is the weighted average valence of A, ε2 is the weighted average valence of M1, and ε3 is the weighted average valence of M2.

The invention discloses a rare earth antibacterial ceramic and a preparation method thereof, and belongs to the technical field of ceramic materials, the rare earth antibacterial ceramic comprises a base material, a rare earth antibacterial agent and an auxiliary additive, the base material is coated with a zirconium silicate coating layer; the matrix material is one of aluminum oxide or zirconium oxide, the rare earth antibacterial agent is a ternary composite oxide composed of at least three lanthanide elements, the lanthanide elements comprise Ce, Y, La and Nd, and the invention provides a preparation method of the composite material. Through collaborative innovation of ternary rare earth composite modification, zirconium silicate interface coating and a gradient sintering process, the core problems of single antibacterial spectrum, high-temperature failure and insufficient durability of traditional antibacterial ceramic are solved, and the antibacterial property, stability, biological safety and mechanical property are remarkably improved; and the method has clear technical progress and industrial application value.

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 discloses a multi-element soil fertility improvement biological modifier and a preparation method thereof, and belongs to the technical field of soil fertility improvement. The modifier is prepared from modified straw aerogel, a strontium titanate loaded lignin compound, lanthanide modified potassium feldspar powder, alginic acid oligosaccharide composite gamma-aminobutyric acid, carbon nitride quantum dots, bacterial cellulose nanofibers and polyaniline nanotubes according to the mass ratio of (18-22): (15-17): (13-15): (7-10): (10-13): (3-5): (7-10): (10-13): (5-8). The composite microbial inoculant is composed of a nano zero-valent iron-montmorillonite compound and a nitrogen fixation-phosphate solubilizing composite microbial inoculant. The modified straw aerogel and the bacterial cellulose nanofibers are interwoven to form a three-dimensional network framework, a habitat is provided for soil microorganisms, the water and fertilizer retention capacity of soil is enhanced, and meanwhile, the network structure promotes transmission of nutrients and water in the soil and improves the nutrient utilization efficiency.

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 discloses a cobaltosic oxide catalyst doped with lanthanide metal, a preparation method of the cobaltosic oxide catalyst and application of the cobaltosic oxide catalyst to ammonia production through nitrate reduction. The method comprises the following steps: carrying out hydrothermal reaction on cobalt nitrate hexahydrate and a lanthanide metal salt precursor in a mixed system of isopropanol and glycerol, and then carrying out high-temperature calcination to prepare the lanthanide metal-doped cobaltosic oxide catalyst. The preparation method disclosed by the invention is simple to operate and low in cost, the prepared lanthanide metal-doped cobaltosic oxide catalyst shows excellent Faraday efficiency, ammonia yield and cycling stability in an electro-catalysis nitrate reduction reaction, a traditional path of preparing ammonia from nitrate is broken through, and more efficient performance is realized.

In order to solve the problems of insufficient electrochemical stability, low ionic conductivity and large grain boundary resistance of the existing halogen solid electrolyte material, the invention provides a solid electrolyte material, which comprises a compound shown in the following general formula: Aa (M1bM2c) Xd, A comprises one or more of Li, Na, K, Cu and Ag, X is halogen, M1 is a main element, M1 is selected from one of Ga, Y, In, Mg, Sr, Sc, Al, Fe, Zr, Hf, Ta, Nb, W, Mn, Zn, Co, Mo, Sn, Ca, Pb, Ti, Ru and lanthanide series metal elements, and X is one or more of the following elements. M2 is a doping element and comprises one or more of IIA, IIB, IIIA, IIIB, IVA, IVB, VA and VB group elements, b is larger than the molar ratio of any element in M2, a is larger than or equal to 0.5 and smaller than or equal to 5, b is larger than or equal to 0.2 and smaller than or equal to 2, c is larger than or equal to 0.2 and smaller than or equal to 2, and d is equal to a * epsilon 1 + b * epsilon 2 + c * epsilon 3. Meanwhile, the invention also discloses a preparation method of the solid electrolyte particle, and a solid electrolyte, a semi-solid electrolyte, a positive electrode and a battery comprising the solid electrolyte particle. The solid electrolyte material provided by the invention has relatively high ionic conductivity and electrochemical stability.

Lanthanum perovskite oxide coated high nickel ternary positive electrode material and preparation method thereof, wherein the positive electrode material is a spherical particle formed by coating a high nickel ternary positive electrode material with a lanthanum perovskite oxide coating layer at a mass ratio of 0.01 to 0.03:1; the chemical formula of the lanthanum perovskite oxide is La z Ca 1‑z CoO3, where 0 < z ≤ 1; the chemical formula of the high nickel ternary cathode material is LiNi x Co y Mn (1‑x‑y) O2, wherein 0.80≤x≤0.96, 0.01≤y≤0.10, and 1-x-y>0. The preparation method comprises ball-milling a lanthanide perovskite oxide with a high-nickel ternary cathode material, followed by low-temperature sintering under a protective atmosphere. The cathode material of the present invention exhibits high lithium ion and electron conductivity during charge and discharge, is highly reversible, has a stable structure, and exhibits excellent rate capability and cycle stability. The method of the present invention is simple, low-cost, and suitable for industrial production.

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 provides a Cu-Fe-Mn-P series alloy material, which contains 0.15 to 0.50 percent by weight of Fe, 0.15 to 0.50 percent by weight of Mn and 0.05 to 0.30 percent by weight of P, and further contains one or more of Ni, Mg, Cr, Sn, Zn, Zr, Ag, Ti and lanthanide series rare earth elements. The total amount of the Cu and the unavoidable impurities is 0.15 wt% or less, and the Cu and the unavoidable impurities meet the component proportional relation of the following formulas (1), (2) and (3): {Fe} + {Mn} + {P} is less than or equal to 1.0% (1); (2) 0.5 < = {Fe} / {Mn} < = 2.0; 2.0 < = ({Fe} + {Mn}) / {P} < = 5.0 (3); the Cu-Fe-Mn-P alloy material has good bending processability that the ratio R / t of the minimum bending radius to the plate thickness is smaller than 2.0, and the heat-resistant temperature is larger than or equal to 500 DEG C. The composite material can be used in the field of wide characteristic requirements of the electric conductivity of 60-90% IACS and the corresponding tensile strength of 800-600 MPa.

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.

Presented herein are methods, systems, and apparatus for single analyte detection or multiplexed analyte detection based on amplified luminescent proximity homogeneous assay (“alpha”) technology, but using hollow polymer fiber optics doped with ‘acceptor bead’ dye (e.g., thioxene, anthracene, rubrene, and / or lanthanide chelates) or ‘donor bead’ dye (e.g., phthalocyanine) that carry a signal generated by the dopant via singlet oxygen channeling.

The invention discloses an element synergistic positive electrode material and a preparation method thereof, and belongs to the field of lithium ion battery electrode materials. In order to solve the technical problems that an existing doping type Co coating system lacks fine design, is poor in cycling stability and is limited in capacity, collaborative doping of multiple ions such as lanthanide is mainly adopted, and a composite design method of doping of a doping type Co coating structure and a lithium cobalt oxide body is constructed. By controlling the distribution of different ions in the body and the coating layer, stress regulation and performance optimization are realized, and the structural stability and capacity retention performance of lithium cobalt oxide under high voltage are remarkably improved.

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.

This powder for sintering contains: a primary powder composed of aluminum or an aluminum alloy; and an oxide of at least one rare earth metal element selected from scandium, yttrium, and lanthanoid elements. This powder (1) for sintering is composed of a mixed powder having: particles (2) of a primary powder composed of aluminum or an aluminum alloy; and additive particles (3) composed of an oxide of at least one rare earth metal element selected from scandium, yttrium, and lanthanoid elements, wherein at least some of the additive particles (3) may adhere to the surface of the particles (2) of the primary powder.

The present invention discloses a phenyl ether-based bimetallic organic framework antifouling material, its preparation method, and its application, belonging to the technical field of marine antifouling materials. The preparation method is as follows: 1) A phenyl ether organic ligand containing a carboxyl group, a zinc salt, and a lanthanide metal salt are dissolved in a polar organic solvent and placed in a sealed reaction vessel for a coordination reaction, whereby the zinc and lanthanide metal ions form coordination bonds with the carboxyl groups, bridging the metal ions to form a tetrametallic cluster; the resulting crystals are washed and dried to obtain the phenyl ether-based bimetallic organic framework; 2) the phenyl ether-based bimetallic organic framework is ground and uniformly dispersed in an aqueous polyurethane resin, followed by thorough mixing to obtain the phenyl ether-based bimetallic organic framework antifouling material. The present invention also provides the application of the antifouling material in marine antifouling and anticorrosion applications. The antifouling material prepared by the present invention has low synthesis cost and difficulty, stable properties, and significant inhibitory effect on the settlement of organisms such as diatoms and barnacles.

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 invention relates to a preparation method of electrical-grade magnesium oxide for slowing down current leakage, belongs to the technical field of electrical-grade magnesium oxide, and solves the problems of poor insulativity, relatively high electrical leakage and the like in the actual use process of electrical-grade magnesium oxide. Comprising the following steps: step 1, weighing nano calcium oxide and lanthanide series metal oxide, putting the nano calcium oxide and the lanthanide series metal oxide into a quartz crucible, and uniformly mixing to obtain a primary mixed oxide auxiliary agent; 2, heating the mixed oxide auxiliary agent obtained in the step 1 in a muffle furnace, cooling to room temperature under a drying condition to obtain white powder, and grinding to obtain an oxide auxiliary agent; 3, absorbing ethyl acetate (EA), hydrogen-containing silicone oil and polycyclic aromatic hydrocarbon (D30), putting into a centrifugal tube, and uniformly mixing to obtain a liquid film coating auxiliary agent; the method has the advantages that the current leakage of the electrical-grade magnesium oxide with poor insulativity can be slowed down by adding the metal oxide aid under the condition that the original properties of the electrical-grade magnesium oxide are not changed. The method is simple, convenient and obvious in effect.

The invention belongs to the technical field of luminescent materials. The invention discloses a CaF2-CaZnOS heterojunction stress luminescent material and a preparation method of the CaF2-CaZnOS heterojunction stress luminescent material. The chemical general formula of the heterojunction stress luminescent material disclosed by the invention is xCaF2-(10-x) CaZnOS: y% M, the used CaF2 and CaZnOS can realize the doping of transition metal Mn and various lanthanide series metals to realize stress luminescence, and realize the conversion under a force-induced spectrum in a heterojunction system, the CaF2 belongs to fluoride and can be partially used as a fluxing agent in the reaction process, the binding force of fluorine ions is strong, and the doping of fluorine can improve the stability of the material, so that the material can be widely applied to the field of luminescent materials. And the prepared stress luminescent material can be used for preparing a transparent substrate, and the application range is wider. According to the invention, a high-temperature solid-phase method is adopted for synthesis, the preparation process is simple, the cost is low, the composite heterojunction stress luminescent material with excellent luminescent characteristic is synthesized, the stress luminescence is visible under the condition of natural light, and the application potential is greatly enhanced.

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.

The present disclosure relates to catalyst compounds, catalyst systems containing such compounds, and uses thereof. In some embodiments, a catalyst includes a group 3, 4, 5 or 6 transition metal or lanthanide metal and features one seven-membered and one five membered metallocycle rings.

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.