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103 results about "Metal clusters" patented technology

Metal cluster compounds can form a variety of arrays, including triangular, tetrahedral, and octahedral arrays. For many d-block clusters there is a strong correlation between their structure and the number of valence electrons (from the metal atoms and the ligands).

MOF-based derivative composite photocatalyst as well as preparation method and application thereof

The invention provides an MOF-based derivative composite photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of photocatalysts. The MOF is quenched in the soluble metal salt solution after being calcined, the MOF derivative material formed through calcination can be rapidly cooled through quenching, a large number of defects are formed on the surface of the MOF derivative material, on one hand, the number of oxygen vacancies can be increased through the defects, and the oxygen vacancies are beneficial to electron transmission and improvement of the catalytic effect; on the other hand, the metal loading capacity can be improved, the binding force between the MOF derivative material and the metal is high, the MOF derivative material is not prone to falling off, and the photocatalyst has good stability. According to the method, metal ions can be promoted to be reduced to form metal simple substances or metal clusters through reduction treatment, and the metals can generate heat when being used as the photocatalyst, so that oxygen vacancies and the metals generate light-heat effect for concerted catalysis, and the degradation effect of the photocatalyst on antibiotics is further improved.
Owner:ZHAOQING UNIV +1

Porphyrin-based iron metal organic framework catalyst for improving photoresponsiveness

The invention relates to a porphyrin-based iron metal organic framework (Fe-TCPP) catalyst for improving photoresponsiveness, which is characterized in that the Fe-TCPP nano catalyst is prepared by using an iron source and meso-tetra (4-carboxyphenyl) porphin (TCPP) as precursors through a simple solvothermal method, assisting coordination by virtue of polyvinylpyrrolidone (PVP), performing sealed reaction after ultrasonic dispersion, and preparing the Fe-TCPP nano catalyst. A purple suspension is obtained. And centrifuging, washing and drying to obtain the nano rod-shaped Fe-TCPP metal organic framework material. The Fe-TCPP catalyst prepared by the preparation method disclosed by the invention has a regular crystal structure and good dispersity, and can be stably coordinated to form a Fe-O cluster structure. The effective introduction of the TCPP enhances the charge transfer (LCCT) capability from the ligand to the metal cluster, effectively promotes the Fe (III) / Fe (II) circulation, and improves the photocatalysis-ozonation catalytic efficiency. The catalyst has the advantages of high thermal stability, less metal ion dissolution, good cycle performance and the like, and has wide application potential in the field of water treatment.
Owner:WUHAN UNIV OF SCI & TECH

Preparation method and application of monatomic and precise atom cluster co-loaded catalyst

The invention relates to a preparation method and application of a single atom and atom accurate cluster co-loaded catalyst. According to the method, before a metal source of a metal cluster source is introduced, a stable metal molecular cluster is formed through the strong coupling effect of a 2-Methyl-1H-benzimidazole-1-methanol organic ligand and a metal center, aggregation in the subsequent pyrolysis process is effectively avoided through the strong coupling effect of the organic ligand on the metal center, so that the metal clusters are arranged in order, and the metal cluster source is formed through the strong coupling effect of the 2-Methyl-1H-benzimidazole-1-methanol organic ligand and the strong coupling effect of the 2-Methyl-1H-benzimidazole-1-methanol organic ligand. And the atom number is controllable. A series of precise atom cluster and monatomic loaded carbon carrier catalysts prepared by the method are applied to the field of electro-catalysis nitrate reduction, and efficient and oriented conversion of nitrate is realized.
Owner:HEBEI UNIV OF TECH

Terbium-cerium doped MIL-177 confinement multi-metal cluster photocatalyst and preparation method thereof

The invention relates to the technical field of photocatalysis, in particular to a terbium and cerium doped MIL-177 confinement multi-metal cluster photocatalyst, which is prepared from terbium / cerium double metal elements, an MIL-177 metal organic framework, a multi-tungsten phosphomolybdate nanocluster and L-cysteine, according to the photocatalyst, an MIL-177 metal organic framework modified by terbium / cerium double metal elements is used as a substrate, a multi-tungsten phosphomolybdate nanocluster is used as an active center, microwave hydrothermal synthesis and solvothermal synthesis are performed, and L-cysteine surface modification is performed. Double metal elements terbium and cerium doped aluminum-based metal organic frameworks are combined with multi-tungsten phosphomolybdate nanoclusters, and surface modification is performed through L-cysteine, so that the visible light absorption range is widened, efficient separation of photo-generated charges is realized, catalytic active sites are increased, and the efficiency and selectivity of photocatalytic reduction of carbon dioxide are improved.
Owner:NANJING TECH UNIV

Electrochemical sensors based on metal cluster composites, their fabrication methods and applications

Electrochemical sensors based on metal cluster composites and methods of manufacture are provided. [Solution] Au 25 The graphene composite solution, the bean esterase chitosan solution, and the Nafion solution are dropped onto a glassy carbon electrode and then dried to obtain an electrochemical biosensor electrode. The metal cluster is composed of 25 gold atoms and a well-defined number of organic ligands, and has a precise composition and stable geometric structure. Au 25 The graphene composite has excellent electrical conductivity and cooperative electrocatalytic effect, which can effectively promote the transfer of electrons and improve the response sensitivity of the sensor. The electrochemical sensor can measure the content of profenofos by enzyme inhibition method using kidney bean esterase as the enzyme source.
Owner:JIANGSU UNIV

Pyrenyl metal organic framework material suitable for low-temperature methane adsorption storage as well as preparation and application of pyrenyl metal organic framework material

The invention discloses a pyrenyl metal organic framework material Cr-TBPP-MOF suitable for low-temperature methane adsorption and storage as well as a preparation method and application of the pyrenyl metal organic framework material Cr-TBPP-MOF in low-temperature methane adsorption. The preparation method comprises the following steps: firstly, synthesizing an eight-connection pyrenyl ligand H8TBPP from 1, 3, 6, 8-tetrabromo pyrene serving as a raw material under a specific and appropriate condition, and then preparing the high-porosity metal organic framework material Cr-TBPP-MOF from the eight-connection pyrenyl ligand H8TBPP and a Cr3 metal cluster under a specific and appropriate condition. The synthesis and preparation method is easy to operate, low in cost and suitable for efficient low-temperature methane adsorption and storage.
Owner:ZJU HANGZHOU GLOBAL SCI & TECH INNOVATION CENT

Preparation and application of ionic vinyl metal covalent organic framework material

The invention discloses preparation and application of an ionic vinyl metal covalent organic framework material, and belongs to the technical field of organic synthesis. The preparation method comprises the following steps: adding a metal cluster containing an aldehyde group and an ionic monomer containing a methyl group into a reaction tube, and reacting in an organic solvent under the catalytic action of piperidine to generate the crystalline ionic carbon-carbon bond linked metal covalent organic framework material. The sp2c-COFs are generated by utilizing a Knoevenagel condensation reaction through a bottom-to-top strategy, the stability of the material is improved through carbon-carbon bond linkage, and metal and ion sites are uniformly distributed in the framework material according to the method. In the material, metal and ions are introduced into a monomer through in-situ synthesis, so that uniform distribution of functional sites is realized, the problems of non-uniform metal distribution, difficulty in quantification and the like caused by introduction of metal through a post-modification method at present are solved, and the material has important value in performance improvement of COFs (Covalent Organic Frameworks) materials.
Owner:LANZHOU INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Metal-doped modified SiOx-based composite negative electrode material and preparation method and application thereof

The invention belongs to the technical field of lithium ion battery electrode materials, and particularly relates to a metal-doped modified SiOx-based composite negative electrode material as well as a preparation method and application thereof. According to the preparation method, SiOx is doped and modified by using metal capable of forming an alloy with Li, and metal clusters loaded on the surfaces of particles can enter a solid electrolyte interface (SEI) in an in-situ doping manner in a circulation process, so that the adsorption of lithium ions in an electrolyte and the ion transmission rate on the interface are greatly enhanced in a form of forming an alloy with lithium ions; the interface coupling effect between the silicon-based particles and the single-walled carbon nanotubes can also be promoted; in addition, the metal elements doped into the silicon-based particles can effectively inhibit disproportionation, improve the mass transfer rate in the silicon-based particles, homogenize an ion concentration field and an electric field, reduce stress concentration and effectively improve the cycling stability of the SiOx-based negative electrode.
Owner:ZHENGZHOU UNIV

Isomorphic bismuth oxide cluster material as well as preparation method and application thereof

The invention discloses an isomorphic bismuth oxide cluster material as well as a preparation method and application thereof. Bismuth atoms have a relatively high EUV absorption cross section, and the bismuth atom type photoresist is low in toxicity, low in environmental pollution and beneficial to green and environment-friendly production and processing. According to the method for preparing the bismuth oxygen cluster, a bismuth source and carboxylic acid ligands are synthesized into the bismuth oxygen cluster through an ultrasonic standing method or a heating and stirring method by controlling mixing conditions. According to the synthesis method of the bismuth oxygen cluster, the bismuth oxygen metal oxygen cluster containing various carboxylic acids can be synthesized. The bismuth oxide cluster structure has the size of about 2nm and uniform distribution, and can effectively improve the resolution of the bismuth oxide cluster photoresist. Besides, by carrying out structural regulation and control on the bismuth source and the carboxylic acid ligand, the photoetching performance of the material can be optimized, an electrophilic or electron donating group can be introduced, and the dissolving property of the patterned material can be regulated, so that the film thickness, the film roughness, the resolution ratio, the film adhesion and the etching resistance are influenced.
Owner:NANKAI UNIV

Preparation method and application of defect engineering modified MOFs composite perfluorosulfonic acid proton exchange membrane

The invention discloses a preparation method and application of a defect engineering modified MOFs composite perfluorosulfonic acid proton exchange membrane. According to the composite proton exchange membrane prepared from the perfluorinated sulfonic acid resin and the defect disulfonic acid group MOFs synthesized through microwave assistance, high conductivity and good stability of the proton exchange membrane are achieved in a simple and efficient mode. Microwave radiation has strong energy, the reaction speed can be increased, part of metal clusters are not coordinated with ligands in time, and rich defects are generated in MOFs. The MOFs with proper structure defects can increase the pore volume, form special sites for promoting proton conduction, and form a hydrogen bond network by adsorbing water molecules or functional groups, so that the proton transmission efficiency is remarkably improved. Meanwhile, the sulfonate group also provides a proton source for proton conduction and constructs a hydrogen bond channel for adsorbing water molecules. The MOFs nanofiller and the perfluorosulfonic acid polymer have good compatibility, and good mechanical performance, thermal stability and proton stability of the composite membrane are ensured.
Owner:SHANGHAI 3F NEW MATERIAL TECH CO LTD

Zirconium-based MOF composite filter cloth and preparation method and application thereof

The invention relates to the technical field of gas adsorption composite materials, in particular to zirconium-based MOF composite filter cloth and a preparation method and application thereof. The preparation method comprises the following steps: by taking a polyester non-woven fabric as a flexible carrier, sequentially carrying out alkali liquor activation and epoxy silane surface treatment to construct an active interface layer rich in epoxy groups; synthesizing a difunctional organic ligand simultaneously containing carboxylic acid and thioether functional groups by adopting a one-pot condensation reaction; in-situ self-assembly of zirconium metal clusters and bifunctional ligands is realized through a solvothermal-hot pressing synergistic process, oriented growth of MOF crystals on the surfaces of fibers and covalent interface connection formed through epoxy-carboxyl ring-opening reaction of a silane coupling agent are synchronously completed, and the MOF composite filter cloth is obtained. According to the zirconium-based MOF composite filter cloth disclosed by the invention, the efficient and high-selectivity capture of trace SOs is realized by utilizing the synergistic effect of thioether groups in ligands and unsaturated sites of metal clusters, and the regeneration is realized to a certain extent.
Owner:ZINGKE (CHONGQING) ADVANCED MATERIALS RES INST CO LTD

Atomic precision metal cluster containing multi-layer ligand spherical shell and water-phase synthesis method of atomic precision metal cluster

The invention provides an atomic precision metal cluster containing a multi-layer ligand spherical shell and a water phase synthesis method of the atomic precision metal cluster. The aqueous phase synthesis method comprises the following steps: performing first mixing on a metal precursor aqueous solution and a ligand aqueous solution, supplementing water to obtain an initial solution, and performing second mixing; then adding a reducing agent aqueous solution to obtain a reaction mixed solution; carrying out first stirring on the reaction mixed solution, concentrating, carrying out second stirring, and supplementing water; and repeating the operations of concentration, secondary stirring and water supplementation to obtain the atom precise metal cluster containing the multilayer ligand spherical shell. The multi-layer ligand spherical shell is adopted to protect the cluster, so that the cluster core can stably exist in an extremely long time without obvious change, and co-production, storage and utilization of related clusters are facilitated; and the metal clusters with uniform size and precise atoms can be directly obtained and have the same molecular weight, so that the post-treatment step can be simplified, and the feasibility of product amplification and application is enhanced.
Owner:PETROCHINA CO LTD

An atomic-level catalytic material, a preparation method and application thereof

PendingCN122352314AThioureaMuffle furnace
This invention relates to the field of photocatalytic materials technology, disclosing an atomic-level catalytic material, its preparation method, and its application. The method includes mixing nickel chloride with deionized water to form a solution, adding thiourea and mixing thoroughly to obtain a mixture; ultrasonically treating the mixture and continuously stirring until completely dissolved; drying the dissolved solution in an oven to obtain a solid powder; placing the solid powder in a muffle furnace and calcining it in air, then cooling to obtain the atomic-level catalytic material. This atomic-level catalytic material exhibits a nanoflower-like structure, containing nickel elements distributed in single-atom form, without metal clusters. This invention is applied to the photocatalytic carbon dioxide reduction reaction. The introduction of nickel single atoms promotes the separation and migration of photogenerated charge carriers within the material, causing the carbon dioxide reduction reaction pathway to favor methane production, thus improving the selectivity of the target product in the catalytic reaction.
Owner:CHONGQING JIAOTONG UNIV

Preparation and application of fluorescent probe capable of continuously identifying cations and HPO42-

The invention relates to the technical field of fluorescent materials, in particular to preparation and application of a fluorescent probe capable of continuously recognizing cations and HPO4 < 2->. The preparation method comprises the following steps: by taking Na-X zeolite as a carrier, loading an nZVI / Ni binary metal cluster on the surface of the Na-X zeolite by using an iron source, a nickel source and a reducing agent to prepare a fluorescent probe P1; reacting the fluorescent probe P1 with a compound containing an amino group to prepare a fluorescent probe P2; and carrying out dehydration condensation reaction on the fluorescent probe P2 and a compound containing an aldehyde group to prepare the fluorescent probe. The fluorescent probe has excellent stability and anti-interference capability, can detect and identify cations and anions at the same time, generates macroscopic color change under ultraviolet light, and has a very wide application prospect in the field of ion identification and detection.
Owner:WEST ANHUI UNIV

Composite catalyst for alcoholysis of pet waste bottles and preparation method thereof

The application belongs to the technical field of polymer material recycling and catalytic chemistry, and discloses a composite catalyst for PET waste bottle alcoholysis and a preparation method thereof. The composite catalyst is based on biomimetic enzyme engineering and dynamic covalent chemistry strategy, and comprises a binuclear metal cluster active center, a limited microenvironment shell layer and a dynamic covalent network skeleton. The binuclear metal cluster is constructed by zinc / cobalt / manganese ions and a tridentate ligand C9H8N2O4, the shell layer is a polydopamine derived functional polymer, and the skeleton is formed by cross-linking aromatic and aliphatic monomers through borate ester bonds. The application solves the performance degradation problem caused by the instability of the active center of the existing enzyme-like catalyst in industrial circulation application. The catalyst not only has the enzyme-like catalytic characteristics of high activity and high selectivity, but also realizes self-repairing after damage through the built-in multiple dynamic chemical mechanism, thereby providing a new catalytic material with performance and durability for efficient and sustainable chemical recycling of PET waste bottles.
Owner:FUJIAN BAICHUAN RESOURCES RECYCLING TECH

An evaluation method for regulating stability of diatomic catalytic structure by metal cluster

The application belongs to the technical field of electrocatalytic material structure screening and design, and discloses an evaluation method for regulating stability of diatomic catalytic structure by using metal clusters. The method firstly constructs a diatomic catalyst PtTMN6, TM is a transition metal atom, and anchors a Pt4 tetrahedral cluster above the diatomic atom; then, by means of ab initio molecular dynamics simulation, the stability mechanism of the Pt4 cluster to the diatomic atom under high-temperature vacuum environment, hydrogen reduction atmosphere and normal-temperature aqueous solution environment is explored in sequence, so as to screen the most stable catalytic material configuration; the above different systems can exhibit different degrees of stability at high temperature, and the intrinsic factor analysis of the above stability modes by using COHP, differential charge density and Bader charge shows that the PtNi system structure stability is the best. The application firstly introduces the inevitable metal cluster in the experimental preparation into the stability evaluation framework, and solves the problem that the microstructure of the calculation model is disconnected with the actual configuration.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Preparation method of metal cluster-based infrared electroluminescent device

The invention relates to a preparation method of a metal cluster-based infrared electroluminescent device, and belongs to the field of electronic device manufacturing. The preparation method comprises the following steps: taking methylbenzene containing Me2SAuCl, adding 4-tBuPhC = CH and Et3N, stirring, adding Cu (MeCN) 4BF4 powder, adding an ethanol solution of new BH3.tBuNH2, reacting, stirring and rotationally evaporating the mixture to obtain a solid, dissolving the solid in a mixture of dichloromethane and methylbenzene, centrifuging, filtering precipitate, collecting filtrate, standing and crystallizing to obtain dark red blocky crystal Au16Cu6, and then adding a main body material composed of mCP and PO-T2T, and preparing through a spin coating and evaporation process. The method has the advantages that the metal nanocluster Au16Cu6 and the host materials mCP and PO-T2T are utilized to construct a host-guest material system for preparing the metal cluster infrared LED, and the introduction of the host materials improves the electrical parameters of the device and ensures the smoothness of the cluster film.
Owner:JILIN DONGGUANG AOWEI AUTOMOBILE BRAKE SYST

Coordination compound with olefin coordination trinuclear zirconium cluster structure and photoresist composition containing coordination compound

The invention discloses a coordination compound with an olefin coordination trinuclear zirconium cluster structure and a photoresist composition containing the coordination compound. The chemical formula of the coordination compound is [(CpZr) 3 (mu2-OH) 3 (mu3-O) X3], and Cp is a cyclopentadienyl ring; x is a ligand formed after the organic carboxylic acid loses hydrogen atoms on carboxyl, the chemical formula of the organic carboxylic acid is R-COOH, and R is an organic group. The material has a trinuclear metal cluster structure. Compared with a traditional photoresist polymer, the coordination compound disclosed by the invention has a relatively small molecular size, and a better photoetching resolution can be obtained; meanwhile, according to the coordination compound disclosed by the invention, the corrosion resistance can be effectively improved by introducing a cyclopentadienyl ring into a cluster structure, so that the resolution ratio and the characteristic size of a photoetching pattern are improved, and huge application potential is shown.
Owner:张江国家实验室

Cluster-type self-healing hydroxyl nickel-iron / nickel electrode and its application in hydrogen production by cracking of saline water

The application discloses a cluster type self-healing nickel oxyhydroxide / iron-nickel electrode and application thereof in hydrogen production by cracking of saline water, and steps are as follows: under a three-electrode system, a foam metal is used as a working electrode, a cyclic voltammetry method is adopted in a potassium hydroxide solution electrolyte, and a metal cluster dispersion liquid is obtained; under the three-electrode system, a nickel iron / nickel MOF is used as the working electrode, the metal cluster dispersion liquid is used as the electrolyte, the cyclic voltammetry method is adopted, and a target electrode is obtained; and the target electrode is used in hydrogen production by cracking of saline water or a whole reaction of cracking of saline water in the electrolyte obtained by mixing the metal cluster dispersion liquid and the saline water. The target electrode has higher activity and durability and good self-healing performance under the saline water and industrial large current density (500 mA cm ‑2 ).
Owner:NANJING UNIV OF SCI & TECH

Magnetic nano composite material, preparation method and application of magnetic nano composite material in fluorine-containing wastewater treatment

The invention discloses a magnetic nano composite material, a preparation method and application of the magnetic nano composite material in fluorine-containing wastewater treatment. The preparation method of the magnetic nano composite material comprises the following steps: S1, preparing superparamagnetic Fe3O4 nano particles as magnetic cores; the surface of the magnetic core is coated with SiO2 to form a Fe3O4 coated SiO2 core-shell structure; s2, by taking the Fe3O4 coated SiO2 core-shell structure as a substrate, growing an MOF layer composed of zirconium (Zr) metal clusters on the surface of the Fe3O4 coated SiO2 core-shell structure to form an MOF composite material Fe3O4 coated SiO2 coated UiO-66 (Zr); and S3, carrying out amino functionalization treatment on the MOF, so as to form the ammonia modified MOF composite material Fe3O4 (at) SiO2 (at) UiO-66 (Zr)-NH2. The composite material is small in mass transfer resistance, can be recycled from water through magnetic separation after being used, can be repeatedly used after being regenerated, and solves the problems of limited adsorption capacity, difficulty in separation, high regeneration cost and the like in the existing low-concentration fluorine-containing wastewater treatment technology.
Owner:SHANGHAI MORISEAL NEW MATERIAL TECHNOLOGY CO LTD

Protonated Cu-HHTP hydrogen sulfide gas-sensitive material as well as preparation method and application thereof

The invention discloses a protonated Cu-HHTP hydrogen sulfide gas-sensitive material as well as a preparation method and application thereof, and belongs to the technical field of gas sensors and metal organic framework materials, the gas-sensitive material is based on Cu3 (HHTP) 2 (Cu-HHTP), and an exposed copper metal cluster can be used as an adsorption / desorption site of H2S gas molecules, so that the gas-sensitive material can be applied to the field of gas sensors and metal organic framework materials. Therefore, the material has response capability to H2S in an intrinsic state. By carrying out protonation treatment on the material, introduced H < + > provides a richer electron transmission channel while effectively reducing the intrinsic resistance of the material, so that the conduction efficiency of H2S in a material system is remarkably enhanced. In addition, due to the inherent lamellar morphology and porous rod-like structure of Cu3 (HHTP) 2, the material is endowed with the characteristic of high specific surface area. The structural advantage is combined with the protonation design to jointly improve the gas-sensitive property of the material.
Owner:KUNMING UNIV OF SCI & TECH

Oxidation-reduction heterogeneous cluster framework material as well as preparation method and application thereof

The invention discloses an oxidation-reduction heterogeneous cluster framework material as well as a preparation method and application thereof, and belongs to the technical field of framework materials and catalysis. The oxidation-reduction hetero-cluster framework material provided by the invention comprises a polyoxometallate unit and a transition metal cluster unit, the polyoxometallate unit and the transition metal cluster unit are connected through a bridging unit. The polyoxometallate unit is used as an oxidizing unit, the transition metal cluster unit is used as a reducing group, the polyoxometallate unit and the transition metal cluster unit are connected through the bridging unit to obtain the oxidation-reduction heterogeneous cluster frame material, photo-generated charge separation and substrate mass transfer are facilitated, multi-step reactions can be catalyzed, and the reaction efficiency is improved. The catalytic activity and the cycle performance are good; particularly, the carbon-hydrogen bonds can be effectively subjected to photocatalytic oxidation, so that one-pot photocatalytic oxidative imidization of the carbon-hydrogen bonds can be realized under mild conditions.
Owner:SOUTH CHINA NORMAL UNIV

Copper nanocluster / fullerol nanocomposite, polymer nonlinear optical thin film and preparation method and application of polymer nonlinear optical thin film

The invention relates to a copper nanocluster / fullerol nano composite material, a polymer nonlinear optical thin film and a preparation method and application of the polymer nonlinear optical thin film, and the copper nanocluster / fullerol nano composite material is a nano composite material which is formed by inducing self-assembly of Cu6 and hydroxyl fullerene C60-OH in an aqueous solution through hydrogen bond interaction and has a nano structure. The nonlinear absorption coefficient of the film obtained by adopting the copper nanocluster / fullerol nanocomposite material is as high as 35.5 * 10 < 4 > cm / GW when the laser energy is 1 mu J, and the optical limiting threshold value is as low as 0.008 J / cm < 2 >, so that the film is obviously superior to the existing metal cluster-based material. The method is simple and convenient in process and environment-friendly, and the prepared film has important application value in the fields of laser protection and precision optical equipment safety.
Owner:SHANDONG UNIV

Method for detecting DNA methylation

The present invention provides a method for detecting DNA methylation, comprising reacting a DNA of a gene with a metal cluster modified with a molecule having a function for binding DNA, amplifying signals of methylated bases in the DNA by surface-enhanced Raman scattering (SERS) spectroscopy, and detecting the DNA methylation based on the SERS spectrum.
Owner:KAOHSIUNG MEDICAL UNIVERSITY +1

Preparation method of nanopore film and related device

The embodiment of the invention provides a preparation method of a nanopore film, which comprises the following steps: firstly, forming a plurality of nano-scale metal groups on the surface of a substrate, then carrying out plasma etching on the substrate to form nanopores at target positions of the substrate, the target positions comprising the positions where the nano-scale metal groups are located, etching gas adopted in the plasma etching comprises carbon-containing gas and oxygen-containing gas; thus, in the etching process, active free radicals dissociated from the etching gas are enriched at the position of the nanoscale metal group by utilizing the carbon dissolving capacity of the nanoscale metal group, so that the etching rate at the position of the nanoscale metal group is increased, and meanwhile, the oxygen-containing gas destroys a protective film formed by the carbon-containing gas; and further increase of the etching rate at the position of the nanoscale metal group is facilitated, so that the etching rate at the position of the nanoscale metal group is far higher than that at other positions. By adopting the method, the preparation cost of the nanopore film can be reduced.
Owner:BEIJING NAURA MICROELECTRONICS EQUIP CO LTD

Method and system for producing nanoporous structures on a substrate - Patents.com

A method of producing a nanoporous structure on a substrate includes additively forming a precursor structure on a substrate from at least one of a metal oxide or a metal cluster compound, exposing the precursor structure to a vapor of an organic linker, and reacting at least one of the metal oxide or the metal cluster compound in the precursor structure with the organic linker to form a nanoporous structure comprising a metal organic framework.
Owner:BAKER HUGHES OILFIELD OPERATIONS LLC

Preparation method of in-situ synthesized MOFs hydrogen storage material and hydrogen storage material

The invention belongs to the technical field of hydrogen storage material preparation, and provides an in-situ synthesized MOFs hydrogen storage material preparation method and a hydrogen storage material.The preparation method comprises the steps that ZrCl4 and HCl of a certain mass are mixed and stirred at the room temperature for a first set duration at the preset rotating speed; adding a solvent and a ligand into the stirred ZrCl4 and HCl mixed solution, and stirring for a second set time at a preset rotating speed; and putting the mixed solution added with the solvent and the ligand into a polytetrafluoroethylene reaction bottle for heating reaction to obtain the MOFs hydrogen storage material. In UiO-67 synthesis, HCl and ZrCl4 are added in advance to be mixed, so that the ZrCl4 is instantly subjected to Cl <->-assisted pre-hydrolysis at room temperature, metal clusters are generated, a metal framework is locked, reversible Cl <-> is used for occupying sites, and Cl <-> and long-chain 4, 4-diphenyldicarboxylic acid are subjected to precise exchange crystallization subsequently, and the problems of lattice defects and large specific surface area batch difference caused by different nucleation growth rates are thoroughly eliminated; meanwhile, the strong acid environment inhibits Zr < 4 + > hydrolysis precipitation, the single-kettle yield is doubled, and the stability and hydrogen storage performance of the material are guaranteed.
Owner:SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP

Large-area transparent reflective panel using nanoclusters and method for manufacturing the same

A large-area transparent reflective panel using nanoclusters and method for manufacturing the transparent reflective panel. The transparent reflective panel includes a light transmissive medium and a plurality of metal clusters formed on the light transmissive medium. Each of the metal clusters includes unit metal bodies spaced apart from each other and formed on the light transmissive medium.
Owner:KOREA INST OF MACHINERY & MATERIALS +1

Transition metal cluster compound, photosensitive composition, pattern forming method, and method for producing substrate

A transition metal cluster compound is capable of realizing fine circuit patterns, a photosensitive composition contains the transition metal cluster compound, and a pattern forming method uses the photosensitive composition. The transition metal cluster compound contains transition metal elements and a ligand represented by the following general formula (1):wherein R1 is a hydrocarbon chain having one or more carbon atom.
Owner:MITSUBISHI CHEM CORP +1

Solar thermal field-electrocatalysis synergistic copper-based catalytic material for groundwater pollution remediation, preparation method, water treatment device and application

The invention belongs to the technical field of copper-based catalytic materials and water treatment, and particularly relates to a solar thermal field-electro-catalysis synergistic copper-based catalytic material for groundwater pollution remediation, a preparation method, a water treatment device and application. According to the copper-based catalytic material, the high catalytic activity of copper single atoms, the plasmon resonance effect of metal clusters and the excellent H2O activation capacity of a CN substrate are utilized, the photothermal effect is generated through optical excitation, the mass transfer rate of H2O to the substrate is remarkably increased, the dissociation reaction of H2O is promoted, protons and active hydrogen are efficiently generated, and electrochemical hydrodehalogenation and NO3-electrocatalytic reduction are driven. The process effectively solves the problem of reaction kinetics limitation caused by low proton transfer efficiency in the traditional process, greatly accelerates proton transfer and optimizes electron-proton cooperative transfer efficiency, and provides a new way for research and development of groundwater organic-inorganic pollution cooperative treatment and sustainable development technologies. The method has the advantages of remarkable environment and energy conversion.
Owner:SUN YAT SEN UNIV