9 results about "Nanostructured metal" patented technology

This invention provides a one-dimensional silver nanostructure / metal hydroxide composite material, its preparation method, and its application. The preparation method includes: adding a one-dimensional silver nanostructure, a metal salt, and an additive to a solvent and stirring to disperse them evenly; adding an acidic or alkaline reagent under stirring conditions to adjust the pH of the solution, causing the metal ions in the solution to convert into metal hydroxide precipitates, obtaining a one-dimensional silver nanostructure-metal hydroxide suspension; then performing solid-liquid separation, washing and drying the obtained solid product to obtain a one-dimensional silver nanostructure / metal hydroxide composite powder; wherein the metal hydroxide is aluminum hydroxide, zinc hydroxide, magnesium hydroxide, iron hydroxide, manganese hydroxide, copper hydroxide, nickel hydroxide, or cobalt hydroxide, and the one-dimensional silver nanostructure is silver nanowire or silver nanoribbon. The resulting composite material uses metal hydroxide as a carrier and separator, inhibiting the drying and agglomeration of silver nanowires from the source, exhibiting high conductivity and good redispersibility, thus improving conductivity.

A liquid impregnated composite comprising a thermally conductive micro-or nano-structured scaffold impregnated with an effective amount of a thermal bridge liquid wherein the scaffold mainly comprises a first metal, has a micro-or nano-structure, is capable of holding the thermal bridge liquid internally, and has a self-supporting interconnected network structure. The composite material allows for easy pre-encapsulation, provides high thermal performance, reprocessability, and reliability, and can be used for thermal interface cooling in data centers, GPU / CPU systems, solid state lasers, thermoelectric modules, LEDs, and the like.

Methods of treating metal nanocrystals are provided. In embodiments, such a method comprises exposing metal nanocrystals comprising a metal and characterized by at least one twinning boundary therein, to a plating solution comprising a reducing agent and coating metal cations comprising a different metal, under conditions to form a coating of the different metal on surfaces of the metal nanocrystals via electroless deposition by chemical reduction of the coating metal cations, thereby providing coated metal nanocrystals. Methods of forming bulk nanostructured metal alloys from the coated metal nanocrystals are also provided.

The present application belongs to the technical field of energy storage materials, and particularly relates to a carbon-containing metal oxide negative electrode material, a preparation method thereof and a lithium ion capacitor. Compared with the prior art, the present application innovatively uses a nanostructured metal organic framework material as a precursor, and forms a nanostructured metal oxide material as a lithium ion capacitor negative electrode material through heat treatment. The confinement effect between the metal sites and the organic ligands connected by strong coordination bonds can effectively slow down the volume expansion effect of the material, and the potential catalytic effect of the metal elements can promote the graphitization degree of the surrounding carbon, thereby further enhancing the electronic conductivity and surface roughness of the negative electrode, and improving the energy density of the lithium ion capacitor.

The present invention concerns an ultra-sensitive optical sensor, in a single configuration or integrable in a system of variable geometry sensors, which can be coupled to a light source and a detection device as well as to a reference chip, which is able to detect the presence and / or concentration of an analyte, using a suitable receptor layer (synthetic or natural), in a real matrix through the induction of hybrid plasmonic resonances caused by the interaction between the incident visible radiation and a nanostructured metal surface, not obtained by lithographic techniques, such as pollen-based techniques. The present invention further refers to a method for the realization of the sensor and to the uses in the application fields of analytical interest.

The application discloses a copper foil and a preparation method and application thereof, and belongs to the technical field of nano-structured metal material engineering. The copper foil comprises a nano-twin crystal structure inside the crystal grain; the nano-twin crystal structure comprises parallel twin crystal sheet layers and / or intersecting twin crystal sheet layers. The copper foil has stable mechanical properties and physical properties at room temperature. The stable performance means that the attenuation ratio of the mechanical properties is less than 10% after the green foil is treated by baking (150 DEG C, 10 min) or stored for 7 days at room temperature. The method is an improvement of a direct current electrolytic deposition copper foil method, the deposition process of copper is affected by changing the fluctuation amplitude of the output current, and finally, a high-density nano-twin crystal electrolytic copper foil with fine unit cells, uniform and small structures and intersecting twin crystal sheet layers in the crystal is obtained.

A coated cathode active material for a sodium ion secondary battery, the coated cathode active material comprising particles of a cathode active material for a sodium ion secondary battery encapsulated within a coating layer of nanostructured zirconium pyrophosphate particles produced by flame spray pyrolysis.

The present invention provides a heating-type light source (10) capable of emitting a focused light beam using plasmon resonance. The heating-type light source (10) is provided with: a radiation unit (12) that emits, by heating, a light beam that has been enhanced at a specific wavelength that is longer than the visible-light band on the basis of surface plasmon resonance; and a substrate (11) that supports the radiation unit (12). The radiation unit (12) has a metal structure layer (13), a base metal layer (15) that is in contact with the substrate (11), and a dielectric layer (14) that is disposed between the metal structure layer (13) and the base metal layer (15). The metal structure layer (13) is formed by arranging a plurality of nanostructures (16) in which surface plasmons are present, the plurality of nanostructures (16) including two or more types of nanostructures (16) different from each other in at least one of shape and size. The metal structure layer (13) causes the light beam to converge at an arbitrary position by controlling a phase of the light beam with the plurality of nanostructures (16).

The present application relates to the technical field of metal material impact behavior simulation, and particularly relates to a method for calculating strain rate effect of mechanical properties of gradient nanostructured metal. The method comprises the following steps: setting initial conditions of coarse-grained metal and gradient nanostructured metal; obtaining material parameters, structure information and experimental results of the coarse-grained metal and the gradient nanostructured metal; adjusting the grain of the two kinds of metal, obtaining determined parameters after adjustment, and then obtaining simulated stress-strain curves; optimizing and adjusting the determined parameters; predicting uniaxial tensile / compressive performance of the gradient nanostructured metal under different grain size gradient structures; and predicting the influence of different strain rates on the tensile / compressive elastic-plastic constitutive behavior of the material. The present application takes the elastic-plastic theory as the core and combines the material microstructure characteristics, effectively improves the accuracy of the strain rate effect simulation prediction, and successfully solves the technical pain point of large prediction deviation of the existing method.