23 results about "Nanostructured materials" patented technology

An electrode includes a transparent substrate, and a layer of a nanostructured material at least partially covering a surface of the transparent substrate. The nanostructured material includes defective perovskite nanostructures (DPNSs) in the form of nanoplates having an average particle size in a range of 10 to 100 nanometers (nm), an interplanar spacing d(101) of the (101) plane in a range of 0.3 to 0.4 nm, and an interplanar spacing d(104) of the (104) plane in a range of 0.2 to 0.3 nm. A method of making the electrode.

This invention discloses a CuS nanostructure material, its preparation method, and its applications. The CuS nanostructure material uses Cu-MOF octahedrons as a precursor, which are hydrothermally sulfided to obtain an octahedral hierarchical structure assembled from CuS nanorods. The CuS nanorods have a size of 50-100 nm, and the edge length of the precursor Cu-MOF octahedrons is 0.8-1 μm. This invention utilizes a one-step hydrothermal method to prepare a CuS nanostructure material through Cu-MOF sulfidation, resulting in a zinc-ion battery anode material with high conversion efficiency and excellent electrochemical performance.

The application discloses a kind of heterogeneous nanostructured materials and its controllable synthesis preparation method, belong to nanometer material technical field.This method with alkali metal rare earth fluoride nanorod seed, oleic acid and octadecene as growth system, by adding alkali metal rare earth fluoride precursor solution and the lattice mismatch degree between host-guest material is regulated, realize the accurate customization of heterogeneous nano material morphology.According to the quantitative regulation of mismatch degree: when longitudinal mismatch degree δ 纵 <2.0%, transverse mismatch degree δ 横 <1.0% when obtaining uniformly wrapped nanorod;When 2.0%≤δ 纵 <3.1%, 1.0%≤δ 横 <1.7% when obtaining nanoring wrapped nanorod;When 3.1%≤δ 纵 ≤5.1%, 1.7%≤δ 横 ≤2.3% when obtaining nanorod wrapped by nanoscale island.The application realizes the quantitative regulation of heteroepitaxial growth mode by lattice mismatch engineering, provides a new idea for the design of multifunctional integrated heterogeneous nano material.

The invention relates to the technical field of optical device design, in particular to a design method of a long-wave infrared achromatic beam splitting focusing type super-structure lens. The method comprises the following steps: determining a substrate material, a nanostructure material, a radius R, a focal length f and four polarization channel focus coordinates; constructing a linear polarization unit phase parameter library and a transmissivity parameter library through FDTD (Frequency Division Time Division) parameter scanning; performing achromatic phase optimization on the four polarization states in the characteristic wavelength set based on a PSO algorithm to generate structural parameter distribution data of a linear polarization part and a circular polarization part; constructing a super-structure lens in a row staggered arrangement manner; and verifying the focusing performance of the super-structure lens array through an angular spectrum propagation algorithm. Nanometer units for regulating and controlling linearly polarized light and circularly polarized light are integrated through row staggered arrangement, the PSO algorithm is combined for achromatic phase collaborative optimization, multi-polarization-state beam splitting and focusing integration is achieved, the working wave band is widened, the broadband focusing consistency is improved, and the design and calculation cost of the super-structure lens array is reduced.

Disclosed are nanostructured materials, devices, systems and methods of their fabrication using cryogenic milling techniques. In some embodiments in accordance with the disclosed technology, a cryogenic milling method for fabricating electrode materials for batteries is described, which can be used to fabricate high volumetric / gravimetric capacity SnSb—C (tin-antimony with carbon) anode material and other alloy / intermetallic type carbon composite battery anode materials for lithium-ion batteries with significantly improved battery energy density and cycle life.

The application relates to a molybdenum alloy and a preparation method thereof, and relates to the technical field of powder metallurgy nano-structured materials. The main technical scheme is as follows: the molybdenum alloy comprises the following chemical components in percentage by mass: C: 0.0015wt%-0.0025wt%, Zr: 0.10wt%-0.19wt%, rare earth Y: 0.25wt%-0.40wt%, W: 0.22wt%-0.28wt%, and the balance is Mo. The application controls the size and distribution of the second phase through component design, introduces the rare earth compound oxide which forms the coherent / semi-coherent with the matrix to realize the effect of refining the grains and purifying the grain boundaries. On the basis, the application introduces ZrC, at least part of the ZrC can form ZrO2 in the sintering process, so that the oxygen content of the alloy matrix can be further reduced, the grain boundary bonding strength is increased, and the strength and plasticity of the alloy can be further improved.

This invention relates to a molybdenum alloy and its preparation method, belonging to the field of powder metallurgy nanostructure materials technology. The main technical solution adopted is as follows: the molybdenum alloy comprises the following chemical composition by mass percentage: C: 0.0015wt%-0.0025wt%, Zr: 0.10wt%-0.19wt%, rare earth Y: 0.25wt%-0.40wt%, W: 0.22wt%-0.28wt%, with the balance being Mo. This invention controls the size and distribution of the second phase through compositional design, introducing coherent / semi-coherent rare earth composite oxides that form coherent / semi-coherent structures with the matrix to achieve grain refinement and grain boundary purification. Based on the above, this invention introduces ZrC, at least a portion of which can form ZrO2 during sintering, thereby further reducing the oxygen content of the alloy matrix and increasing the grain boundary bonding strength, thus further improving the strength and plasticity of the alloy.

A system (100) for modeling and optimizing artificial photosynthesis for the development of materials and devices for converting solar energy into fuel energy, comprising: • a quantum multiscale modeling module (110) configured to simulate the electronic and catalytic properties of photoactive materials; • a photoelectrode design module (120) configured to design and optimize photoanodes and photocathodes for photoelectrochemical reactions; • a module (130) for the fabrication of nanostructured material architectures designed for improved light absorption and catalytic performance; • a hybrid organic-inorganic interface module (140) configured to optimize charge transfer between organic molecules and inorganic semiconductor materials; • an AI optimization engine (150) configured to analyze simulation data and identify optimal material configurations; and • a simulation module (160) for converting solar energy into fuels, configured to simulate the operation of artificial photosynthesis systems for hydrogen production or carbon dioxide reduction.

An electrode includes a transparent substrate, and a layer of a nanostructured material at least partially covering a surface of the transparent substrate. The nanostructured material includes defective perovskite nanostructures (DPNSs) in the form of nanoplates having an average particle size in a range of 10 to 100 nanometers (nm), an interplanar spacing d(101) of the (101) plane in a range of 0.3 to 0.4 nm, and an interplanar spacing d(104) of the (104) plane in a range of 0.2 to 0.3 nm. A method of making the electrode.

This invention relates to the field of optical device design technology, specifically a design method for a long-wavelength infrared achromatic beam-splitting focusing metalens. The method includes: determining the substrate material, nanostructure material, radius R, focal length f, and focal coordinates of four polarization channels; constructing a phase parameter library and a transmittance parameter library for linearly polarized units using FDTD scanning; performing achromatic phase optimization on the four polarization states within the characteristic wavelength set based on the PSO algorithm to generate structural parameter distribution data for the linearly polarized and circularly polarized portions; constructing the metalens using a row-interlaced arrangement; and verifying the focusing performance of the metalens array using an angular spectrum propagation algorithm. This invention integrates nanounits that control linearly and circularly polarized light through row-interlaced arrangement, combined with PSO algorithm-based achromatic phase synergistic optimization, to achieve integrated multi-polarization-state beam splitting and focusing, broadening the working wavelength band and improving broadband focusing consistency, while reducing the computational cost of metalens array design.

The present invention relates to nanostructured materials (including nanowires) for use in batteries. Exemplary materials include carbon-comprising, Si-based nanostructures, nanostructured materials disposed on carbon-based substrates, and nanostructures comprising nanoscale scaffolds. The present invention also provides methods of preparing battery electrodes, and batteries, using the nanostructured materials.

The invention relates to a magneto-optic functionalized thermally enhanced anisotropic conductive film and a preparation technology thereof, and belongs to the technical field of nano material preparation. The method comprises the following five steps: (1) preparing Tb (PABA) 3phen by a precipitation method; (2) preparing VO2 (M) by combining hydrothermal and high-temperature roasting; (3) preparing polymethyl methacrylate (PMMA) by a bulk polymerization method; (4) preparing a spinning solution; and (5) preparing a [PANI / PMMA] / / [VO2 / PMMA] / / [Tb (PABA) 3phen / PMMA] three-color flag type nanobelt array film by adopting a three-axis parallel electrospinning technology, wherein the array film is the magneto-optical functionalized thermally enhanced anisotropic conductive film. The prepared array film has good green fluorescence, thermal enhanced anisotropic conductivity and magnetic multifunctional characteristics. The method disclosed by the invention is simple and easy to implement, batch production can be realized, and the novel nano-structure material has a wide application prospect.

Described herein is a submerged-plasma process for the production of amorphous and nanocrystalline nanostructured materials, depending on processing conditions, from precursors that can be in the liquid or injected into the plasma or both.

Described are methods for preparing radionuclides, such as radionuclides having a high specific activity. The disclosed methods include irradiating a target material with a neutron source. The target material can be prepared by dissolving a target nuclide salt in an aqueous solution including solid carbon nanostructured material that is suspended using a surfactant, allowing the target nuclide ions to be positioned proximal to the solid carbon nanostructured material. The solution can be dried to remove excess water, to form a dry or powdered material. Upon irradiation, the target nuclide ions are activated and can recoil, driving adsorption of produced radionuclides onto the solid carbon nanostructured material. After irradiation, the solid carbon nanostructured material can be washed to remove non-adsorbed components, like surfactant molecules and the target nuclide salt, and then the treated with an acid to release the radionuclides to solution.

The invention belongs to the technical field of photocatalytic materials, and discloses a method for loading copper oxide quantum dots on the surface of titanium dioxide, which comprises the following steps: coating the surface of TiO2 with carbon quantum dots (CQDs) to form a composite material CQDs / TiO2, and placing the prepared material in a dark environment for more than 24 hours, so that the TiO2 of the CQDs / TiO2 is reversibly converted from hydrophilic to hydrophobic, and the CQDs still maintain the hydrophilic property; in a dark environment, CQDs / TiO2 is immersed in a cupric acetate solution, is rapidly taken out and absorbs a surface solution, so that the solution only exists at a CQDs site; and finally, carrying out air calcination at 400 DEG C through a thermal decomposition method, and cooling to obtain a material structure in which the CuO quantum dots are loaded on the surface of TiO2. The method is suitable for functional modification of materials with fine nanostructures, has significant significance in improvement of photocatalyst performance, and provides a new synthesis thought for design of semiconductor quantum dot heterojunction materials.

This invention discloses a mesoporous transparent thermal insulating polysiloxane nanostructure material, which has a mesoporous network structure composed of stacked polysiloxane nanoscale framework particles. Specifically, it is prepared using methyltrimethoxysilane as the silicon source, a cationic surfactant as the structure directing agent, and a two-step acid-base control process. The mesoporous transparent thermal insulating polysiloxane nanostructure material of this invention possesses ultra-high transmittance, high clarity, and ultra-low thermal conductivity, especially achieving high average visible light transmittance and low haze even at a thickness of 5 mm or more. Furthermore, the preparation method is relatively simple, the reaction conditions are mild, and it is suitable for widespread application.

The present application relates to a kind of preparation methods of ultra-wideband radar stealth material coating, based on the principle that three-dimensional ordered nanostructured material produces diffuse reflection to radar wave, adopt the thorn ball nano nickel powder formed by needle-like nano nickel, strengthen its microstructure with SiO2 Sol, as primary particle structure;Due to the easy agglomeration of nano particles, combined as thorn ball nano nickel powder agglomerate to form secondary ordered structure;Mixed evenly with silicone adhesive to make stealth material coating, so that thorn ball nano nickel powder is evenly distributed in the stealth material coating with a thickness of about 2mm, forming three-dimensional ordered structure;Equivalent to a statistically all-around reflection macroscopic planar structure composed of countless small, different direction reflection particles, diffuse scattering to radar microwave to attenuate radar echo signal intensity, realize ultra-wideband radar microwave stealth.

The group of inventions relates to the field of optics of nanostructured materials and in particular to MAX-phase-based optical devices and source material quality verification methods, and namely to the methods for determining residual MAX-phase in MXenes after etching out the element A. The optical device comprises a transparent base 1 and photoactive particles 2 formed from the MAX-phase having the chemical formula Mn+1AXn. The content of residual aluminum therein in relation to the initial content in the MAX-phase comprises not less than 1%. The method for determining the residual MAX-phase in MXenes comprises exposing them to an exciting radiation and obtaining the output spectral characteristics. The amount of the residual MAX-phase in MXenes is determined from the intensity of the emission band at 694 nm. The inventions make it possible to create simple and efficient method for measuring the MAX-phase derivatives and to expand the range of MAX-phase technology.

The vehicle (1) is equipped with an active camouflage system comprising: - an electrochromic coating (2) fixed to at least one part to be camouflaged of an outer surface of said vehicle (1), and configured to selectively reduce the thermal detectability of said part to be camouflaged; said electrochromic coating (2) comprising an active layer (4) comprising nano structured material having a thermal emissivity value (s) that can be variably determined; and - a control unit (5) configured to generate a potential difference (V) and apply it to said electrochromic coating (2), so as to determine said thermal emissivity value (s) as a function of said potential difference (V).

The invention relates to a magneto-optic functionalized thermally-induced anisotropic conductive film and a preparation technology thereof, and belongs to the technical field of nano material preparation. The method comprises the following five steps: (1) preparing Eu (AA) 3phen by a precipitation method; (2) preparing VO2 (M) by combining hydrothermal and high-temperature roasting; (3) preparing polymethyl methacrylate (PMMA) by a bulk polymerization method; (4) preparing a spinning solution; and (5) preparing a [Eu (AA) 3phen / PMMA] / / [VO2 / PMMA] / / [PMMA] three-color flag type nanobelt array film by adopting a three-axis parallel electrospinning technology, wherein the array film is the magneto-optical functionalized thermally induced anisotropic conductive film. The prepared three-color flag type nanobelt array film has good red fluorescence, thermal anisotropic conductivity and magnetic multifunctional characteristics. The method disclosed by the invention is simple and easy to implement, batch production can be realized, and the novel nano-structure material has a wide application prospect.

The invention relates to the technical field of electrode materials, in particular to a three-dimensional nanostructure NiCo2S4 electrode material and a preparation method and application thereof. The preparation method of the electrode material comprises the following steps: S1, dissolving a cobalt source and a nickel source in deionized water to obtain a metal salt solution; s2, adding ammonium hydroxide, a surfactant CTAB (cetyltrimethyl ammonium bromide) and an organic sulfur source into the metal salt solution, and uniformly mixing; and S3, carrying out a hydrothermal reaction, and carrying out solid-liquid separation, washing and drying to obtain the NiCo2S4 electrode material with the three-dimensional nanostructure. According to the preparation method disclosed by the invention, the three-dimensional nanostructure NiCo2S4 material which is formed by ultrathin nanosheets and has a high specific surface area is synthesized through a one-step hydrothermal method by utilizing a synergistic effect of ammonium hydroxide, an organic sulfur source and a surfactant CTAB (Cetyltrimethyl Ammonium Bromide); when the material is used as an electrode material, the electrochemical performance of a battery or a supercapacitor can be remarkably improved; and the preparation process is simple and efficient.

The application discloses a kind of based on CoP regulation Ti V A photocatalytic system based on O2 / g-C3N4 Z-type heterojunction electronic migration path, a preparation method and application thereof are disclosed.The photocatalytic system comprises Ti V O2 / g-C3N4 Z-type heterojunction material as a substrate and CoP nanostructured material as a regulation component loaded on the Ti V O2 / g-C3N4 Z-type heterojunction material, wherein Ti V O2 is TiO2 with Ti defects.The photocatalytic system can reduce CO2 to CO, CH4 and other hydrocarbons and simultaneously oxidize and degrade tetracycline, metronidazole and other organic pollutants in aqueous solution under visible light irradiation, realizing the synergistic effect of pollutant removal and CO2 resource utilization.In addition, there is no need to add any sacrificial agent in the reaction system, which not only avoids the waste of photo-generated hole energy, but also realizes the full use of photo-generated carriers, thereby improving the overall reaction efficiency.

The present invention relates to physics-informed projection learning methods for simulation of single-block and multi-block electromagnetic and optical structures. The methods of the invention offer fast and accurate multi-dimensional simulations for the time-dependent electromagnetic wave equation and the frequency-domain electromagnetic wave (Helmholtz) equation. Both equations can be expressed in terms of electric field, magnetic field or vector potential. The methods of the invention can be implemented in both frequency and time domains to predict electromagnetic field solutions for effective design and analysis of electromagnetic and photonic structures, including calculations of electromagnetic / optical band structures for periodic structures with or without imperfections or defects. These electromagnetic / photonic structures include, but not limited to, antennas, waveguides, interconnects, superlattices, metamaterials, photonic crystals, electromagnetic-bandgap structures, etc. Depending on the wavelength, they could be built in structures from nm to cm scales, such as nanostructured materials, semiconductor chips, hybrid integrated circuits (ICs), printed circuit boards, etc.