87 results about "Nanoreactor" patented technology

The invention relates to the fields of polyelectrolyte, reversed-phase colloid dispersion systems, nanoreactors, nanocrystals and the like, in particular to zinc cadmium sulfide nanocrystals prepared by taking a polyelectrolyte complex as a nanoreactor and a preparation method of the zinc cadmium sulfide nanocrystals. Carrying out ultrasonic treatment on the anionic polyelectrolyte and a solvent to form a reversed-phase miniemulsion colloid, then adding a soluble salt solution containing target metal ions, and continuously carrying out ultrasonic treatment to obtain an anionic polyelectrolyte reversed-phase miniemulsion colloid containing the target metal ions; performing ultrasonic treatment on the cationic polyelectrolyte and the solvent to form a reversed-phase miniemulsion colloid; adding a soluble sulfide solution, and performing ultrasonic treatment to obtain sulfide-containing cationic polyelectrolyte reversed-phase miniemulsion colloid; and mixing the two reversed-phase miniemulsion colloids, carrying out high-pressure nanocrystallization, putting the obtained product into a high-pressure reaction kettle, transferring the high-pressure reaction kettle to a drying oven, carrying out solvent heat treatment to obtain zinc cadmium sulfide nanocrystals with the size of 2-5 nanometers, and uniformly distributing the nanocrystals in the polyelectrolyte complex.

The invention discloses a bottle brush polymer nanoreactor with high side chain density as well as a preparation method and application of the bottle brush polymer nanoreactor. The preparation method of the nanoreactor comprises the following steps: preparing a bottle brush polymer skeleton with multiple functionalities by adopting small molecular monomers with different functionalities through ROMP, and growing a multi-block functional side chain with controllable molecular weight in combination with sequential ATRP living polymerization; comprising an inner block for loading a metal precursor and an outer block for providing confinement space and solubility as a protective layer. The nanoreactor can be used for in-situ synthesis of inorganic nanoparticles such as gold and ferroferric oxide, and controllable synthesis of diversified colloidal molecules is realized. According to the invention, by increasing the side chain grafting density of the bottle brush polymer and regulating and controlling the block structure, the loading efficiency of the inorganic metal precursor and the dispersity of the nanoparticles are remarkably improved, and meanwhile, the external protection block can inhibit particle aggregation, so that the monodispersed particles are suitable for the fields of catalysis, biomedicine and energy.

The application discloses a kind of multistage nano-reactor array base nano-channel and preparation method thereof;The application first prepares periodic mesoporous organosilicon Au-PMO loaded with gold nanoparticles, then adopts multi-element assembly strategy, constructs nano-reactor array layer on the surface of porous anodic aluminum oxide AAO by spin coating method, and finally obtains Au-PMO / AAO hetero thin film with rich mesoporous structure and adjustable thickness.The gold nanoparticles loaded thereon are uniform in size and uniformly distributed, so that the thin film exhibits peroxidase-like activity.In addition, PMO / AAO thin film with different metal nanoparticles loaded can also be constructed using this method, paving the way for subsequent sensing, gating and catalytic applications.

The invention belongs to the technical field of photoelectrocatalysis, and particularly relates to a preparation method of a double-confinement hollow photocathode and application of the double-confinement hollow photocathode in synthesis of ammonia from nitrate wastewater through photoelectric reduction. According to the method, based on an ion exchange and in-situ growth strategy, a FeMnO3 / CuFe2O4 / Ti hollow cube integrated photocathode is constructed, hydroxyl functionalized ionic liquid (OH-ILs) is further introduced through vacuum impregnation, and an ILs (at) FeMnO3 / CuFe2O4 / Ti nanoreactor with a dual confinement effect is formed. Under ultraviolet-visible-near infrared (UV-Vis-NIR) illumination, the photocathode can remarkably promote separation of photo-induced electron-hole pairs, the charge transfer efficiency is improved, and high-selectivity and high-efficiency ammonia synthesis is achieved. Experiments show that the photocathode can almost completely convert nitrate in high-concentration nitrate wastewater (50mM) within 2.5 hours, so that the effluent reaches the drinking water standard of the World Health Organization (WHO). In a flowing electrolytic tank, the ammonia yield reaches 20.51 mg h <-1 > cm <-2 >, the Faraday efficiency reaches up to 97.75%, and excellent catalytic performance is shown.

The invention discloses application of a hierarchical pore nanoreactor catalyst in preparation of saturated cycloalkane, and belongs to the technical field of catalysts. The method comprises the following steps: uniformly dispersing ZIF-8 in a solvent, adding dopamine hydrochloride and amino acid, stirring at a certain temperature, and carrying out suction filtration and drying to obtain a dopamine-amino acid polymer modified ZIF-8 composite material; dispersing the composite material and a metal precursor in a solvent, uniformly stirring, and carrying out vacuum drying to remove the solvent; and carrying out segmented roasting in an inert atmosphere to obtain the required hierarchical pore nano-reactor catalyst. The catalyst is applied to preparation of saturated cycloalkanes by hydrogenation of polycyclic aromatic hydrocarbons, and specifically, a solvent, polycyclic aromatic hydrocarbons, the catalyst and hydrogen are mixed for a catalytic hydrogenation reaction. The hierarchical pore hollow structure of the catalyst can significantly promote diffusion and enrichment of polycyclic aromatic hydrocarbon molecules of different sizes, and rich pyridine nitrogen sites have strong adsorption and activation capabilities on polycyclic aromatic hydrocarbon and hydrogen molecules.

The utility model relates to the field of gas-liquid mixing, in particular to a gas-liquid nano-reactor, which solves the problem of low reaction efficiency of substances with slower gas-liquid reaction, utilizes a mixing cavity to generate a cavitation effect so as to enable gas and liquid to reach nanoscale, increases the gas-liquid contact area and increases the reaction efficiency, and mainly comprises a columnar reactor body, the reactor body is provided with a plurality of mixing cavities which are sequentially communicated along the axis direction; the mixing cavity is sequentially divided into a converging section and a diffusing section in the flow direction of fluid, the converging section is a first conical cavity with the inner diameter gradually reduced in the flow direction of the fluid, and a plurality of vortex-shaped flow guide grooves converging towards the center are formed in the inner wall of the converging section; the diffusion section is a second conical cavity with the inner diameter gradually enlarged in the flow direction of the fluid, and the second conical cavity is communicated with the first conical cavity.

The invention provides an infrared light release hydrogen sulfide nanoreactor. The infrared light release hydrogen sulfide nanoreactor comprises an injectable PVA / PVP transparent conductive hydrogel and an SNSs / PEI-DTC compound, wherein the interior of the injectable PVA / PVP transparent conductive hydrogel is filled with the SNSs / PEI-DTC compound; the SNSs / PEI-DTC compound is prepared from a donor PEI-DTC and a two-dimensional silylene nanosheet loaded on the surface of the donor PEI-DTC. The invention innovatively provides a light field in-situ controlled release hydrogen sulfide treatment gas for protecting spinal cord neurons from secondary injury, and due to the advantage of good lipid solubility of hydrogen sulfide, the hydrogen sulfide is extremely easy to pass through a blood brain spinal cord barrier and a cell membrane barrier to enter an intracellular structure for treatment of spinal cord injury.

The invention provides a separation microneedle of a loaded lipidosome nanoreactor as well as a preparation method and application of the separation microneedle, and belongs to the technical field of biological medicines. The preparation method comprises the following steps: by taking phospholipid, cholesterol, tetramethoxysilane and 3-aminopropyltriethoxysilane as raw materials, entrapping cis-platinum, 5-aminolevulinic acid and catalase to prepare a liposome nano-reactor; polyvinylpyrrolidone, citric acid, sodium bicarbonate and regenerated silk cellulose are used as raw materials, a liposome nano reactor is dispersed in a microneedle body through a pouring method, and the microneedle capable of being rapidly separated is successfully prepared. Experimental research proves that the separation microneedle has good biocompatibility and mechanical properties, can effectively break through cuticle and realizes efficient transdermal delivery of a liposome nanoreactor. The liposome nanoreactor can be locally planted in deep tumor tissues, continuously supplies oxygen through enzymatic reaction, effectively improves the difficulty of insufficient oxygen supply in tumor photodynamic therapy, and has obvious advantages and wide prospects in the aspects of skin tumor photodynamic therapy application and the like.

The invention discloses a nanoreactor for enhancing immunotherapy as well as a preparation method and application of the nanoreactor. The nanoreactor LNP / GOx / TF / Mn has a core-shell structure, a liposome wrapping a PD-1 / PD-L1 small-molecule inhibitor is taken as a core, the surface of the liposome is modified with a metal-polyphenol network, glucose oxidase is embedded into the metal-polyphenol network, and a MnO2 shell layer is plated on the metal-polyphenol network. The nanoreactor can prolong the in-vivo circulation time of the liposome, the liposome is stabilized by a multi-layer structure, the outer-layer structure design is linked with one another, a cascade reaction is generated, and the purpose of chemodynamic therapy (CDT) / starvation therapy (ST) / immunotherapy (IT) synergistic treatment of tumors is achieved.

The invention discloses photocatalytic self-cleaning lubricating grease containing nano titanium dioxide and a preparation method of the photocatalytic self-cleaning lubricating grease, and belongs to the technical field of lubricating grease. The lubricating grease is prepared from the following raw materials in parts by weight: 70 to 85 parts of base oil, 8 to 15 parts of a thickening agent, 1 to 5 parts of modified nano TiO2, 0.5 to 1.5 parts of an antioxidant, 0.5 to 2 parts of an anti-wear reagent at extreme pressure, 0.5 to 1.5 parts of calcium sulfonate and 0.3 to 0.8 part of polyisobutene. Self-cleaning is realized through a photocatalytic nanoreactor, surface lipophilic modified anatase type nano TiO2 (loaded with an Ag cocatalyst) is stably dispersed in lubricating grease, strong oxidizing free radicals are generated through excitation under illumination, pollutants such as oil sludge and deposited carbon are decomposed into CO2, water and neutralizable small molecular acid in situ, and the oil sludge and the deposited carbon are recycled. Meanwhile, through compatibility of a catalytic decomposition resistant additive and a friction pair surface enrichment strategy, dynamic balance of lubricating performance is maintained, the synergistic effect of online pollutant degradation and long-acting lubrication is achieved, the service life of grease is prolonged, and oil sludge accumulation is reduced.

The present invention provides a biomimetic liposome nanoreactor, a preparation method and its application, and relates to the field of biomedical engineering technology. The biomimetic liposome nanoreactor comprises liposomes, thylakoid membrane fragments and electron donors. The present invention integrates thylakoid fragments (Tk) into liposomes (Lip) and loads electron donors into the liposomes to prepare a biomimetic liposome nanoreactor. The biomimetic liposome nanoreactor of the present invention can be taken up by renal epithelial cells and catalyze NAD + Generate; and under the drive of ultrasound, the electron transport chain on it transfers a large number of electrons to the cytoplasm, converting NAD + Reduction to NADH promotes ATP production, rapidly alleviating AKI in the early stages. Furthermore, in the presence of electrons, the effective generation of NADPH fundamentally prevents the generation of oxidative stress such as ROS, effectively preventing the progression of AKI to CKD.

Compositions comprise statistically random heteropolymers complexed with active proteins, and are formulated and used in stimuli-responsive materials and nanoreactors composed of proteins and synthetic materials.

The invention belongs to the field of application of inorganic biomimetic materials to tumor targeted drugs, and particularly discloses a photomagnetic in-situ self-assembled photothermal gas cascade bionic nanoreactor, a preparation method and application. The nanoreactor is composed of spherical carbonyl iron powder in the innermost layer, sea urchin mastoid Fe3O4 attached to the surface of the spherical carbonyl iron powder and a platelet membrane wrapping the outermost layer. The preparation method comprises the following steps: 1) preparation of carbonyl iron powder (CIP): converting sponge iron elementary substance into multi-carbonyl iron under the conditions of high temperature and high pressure, and introducing CO for annealing to obtain the carbonyl iron powder; (2) preparing CIP-Fe3O4: depositing ferroferric oxide on the surface of carbonyl iron powder by using the protection of NH3 on carbonyl in an in-situ coprecipitation manner; and 3) preparation of CIP-coated Fe3O4-coated PM: coating the surface of CIP-coated Fe3O4 with the extracted platelet membrane through ultrasonic and extrusion methods. The CIP (at) Fe3O4 (at) PM nano-reactor disclosed by the invention has the characteristics of optomagnetic in-situ self-assembly capability and photothermal gas cascade, and is used for enhancing the tumor diagnosis and treatment effect.

A system and method for characterizing a target analyte is provided. The system comprises a nanopore and a polymer chain, the polymer chain comprising a tethering site and a reaction segment, wherein the polymer chain is tethered through the tethering site such that the polymer chain cannot pass through the nanopore, and wherein the reaction segment comprises at least one sensing module that can interact with a single molecule of the target analyte.

The invention discloses a water-based super-hydrophobic finishing agent based on microemulsion in-situ synthesis as well as a preparation method and application of the water-based super-hydrophobic finishing agent. According to the method, octadecyl trichlorosilane, a surfactant and a cosurfactant firstly form an oil-phase mixture, then water is added to form an oil-in-water type microemulsion, finally standing and aging are performed, silane is subjected to in-situ hydrolysis in a microemulsion nanoreactor, and the water-based super-hydrophobic finishing agent is prepared through a one-step method. An organic solvent reaction medium is completely abandoned, and the process is simple and environment-friendly. The obtained finishing agent is uniform in particle and good in stability, can endow the polyester fiber fabric with a super-hydrophobic surface with a contact angle greater than 158 degrees and a rolling angle less than 4 degrees after being used for treating the polyester fiber fabric, is excellent in wear resistance and durability, and has a wide industrial application prospect.

The application provides a kind of liposome nano-reactor loaded separation microneedle and its preparation method and application, belong to the field of biological medicine.The application uses phospholipid, cholesterol, tetramethoxysilane and 3-aminopropyl triethoxysilane as raw material, encapsulates cisplatin, 5-aminoacetylpropionic acid and catalase, and prepares liposome nano-reactor;With polyvinylpyrrolidone, citric acid, sodium bicarbonate and regenerated silk fibroin as raw material, the liposome nano-reactor is dispersed in microneedle body by pouring method, and a kind of microneedle that can be quickly separated is successfully prepared.The experimental research of the application proves that the separation microneedle has good biocompatibility and mechanical property, can effectively break through the stratum corneum, realize the efficient transdermal delivery of liposome nano-reactor.The liposome nano-reactor can be locally planted in deep tissue of tumor, continuously supply oxygen through enzymatic reaction, effectively improve the oxygen supply shortage of tumor photodynamic therapy, and has obvious advantages and broad prospects in the application of skin tumor photodynamic therapy.

A hybrid catalytic nanoreactor having selectivity and stability in presence of air is provided for reduction reactions including semi-hydrogenations comprising of light harvesting dendritic plasmonic colloidosomes (DPC) of gold preferably as black gold and co-acting synergistically active catalytic sites of Pt-doped Ru bimetallic nanoparticles for desired significantly special selectivity and air-stability as a plasmonic reduction catalyst favoring plasmon-mediated simultaneous reduction and oxidation of metal active sites for facilitating reduction reactions including semi-hydrogenation activity. Said black gold / RuPt catalyst showcases good efficiency in acetylene semi-hydrogenation, attaining over 90% selectivity with ethene production rate of 320 mmol g−1 h−1 with its stability evident from 100 h of operation with continuous air flow, attributed to the synergy of co-existing metal oxide and metal phases. The catalyst's stability is further enhanced by plasmon-mediated concurrent reduction and oxidation of the active sites, facilitating its end use and applications in chemical industries, petrochemical industries, and applications catalysis.

The invention discloses a honeycomb SiO2 nanoreactor as well as a preparation method and application thereof. The preparation method comprises the steps that metal ions are highly dispersed in micelles through the coordination complexing capacity of a surfactant, the metal ions are wrapped in SiO2 through the hydrolysis and polymerization effects of tetraethyl orthosilicate, and growth of metal particles can be effectively inhibited; the honeycomb SiO2 nanoreactor with high specific surface area and large aperture is formed through roasting, the nanoreactor comprises highly dispersed small-size metal particles, and the obtained honeycomb SiO2 nanoreactor can eliminate the influence of mass transfer in a catalytic reaction on a core-shell catalyst; effective collision between active components of the catalyst and reactants can be remarkably increased through a confinement effect, so that the catalytic reaction is accelerated; the catalyst disclosed by the invention is simple in preparation process, has the advantages of uniformity, good thermal stability and high repeatability, is easy to realize automatic production, and is suitable for large-scale popularization.

The invention discloses a cavity confinement carbon-based iron monatomic catalytic material as well as a preparation method and application thereof. According to the material, a soft and hard template cooperation strategy is adopted, a hollow mesoporous carbon sphere is used as a carrier to anchor atomic-scale dispersion iron sites, and a nanoreactor with a cavity confinement structure is constructed. Compared with a traditional material, the activation efficiency of the material on peroxymonosulfate (PMS) is improved by about 2.9 times, the degradation performance on phenolic pollutants is remarkably enhanced, and the strengthening effect of a confinement structure on mass transfer and reaction kinetics is verified. Through metal-carrier cooperative regulation and control, singlet oxygen (O) is preferentially generated through the reaction, selective oxidation of organic pollutants is achieved through a non-free-radical path, and the anti-interference capacity in complex water is improved. The method is simple in process and relatively low in cost, and the obtained solid catalyst is easy to separate and recover, is suitable for efficient deep treatment of refractory organic pollutants in rural domestic sewage and industrial wastewater, and has a good application prospect.

The invention provides a light-operated nano-reactor and a preparation method and application thereof, and belongs to the technical field of bionic nano-reactors, the light-operated nano-reactor comprises manganese-based nano-particles and a hybrid membrane coating the surfaces of the manganese-based nano-particles, the hybrid membrane is formed by fusing plant capsule-like bodies, egg yolk lecithin and cholesterol, and the plant capsule-like bodies, the egg yolk lecithin and the cholesterol are mixed to form the light-operated nano-reactor. The photosynthetic phosphorylation performance is realized. The nanoreactor provided by the invention can deliver an immunologic adjuvant and activate the anti-tumor response of immune cells, and can generate ATP through light control to supply energy to the immune response activity of the immune cells, so that the response efficiency and response time of the immune cells are improved. The invention has important significance for improving the response efficiency of various immune cells.

A method of forming a nanoparticle can include admixing an aqueous solution into an oil-phase to thereby form an emulsion of droplets of the aqueous solution in the oil phase, the aqueous solution comprising a nanostructure precursor and a polymer, adding a silane precursor and catalyst to form a silica shell around each of the droplets to nanoreactors; annealing at a first temperature below the decomposition temperature of the polymer to aggregate the nanostructure precursor within the nanoreactor; and annealing at a second temperature above the decomposition temperature of the polymer to convert the aggregated nanostructure precursor to the nanostructure and decompose the polymer.

A method of forming a halide perovskite nanocrystal array having a plurality of halide perovskite nanocrystals arranged in a pattern can include coating an array of pens with a first ink comprising at least one first perovskite precursor having the formula AX and at least one second perovskite precursor having the formula BX′2 dissolved in a solvent. A is a cation, B is a metal, and X and X′ are each a halogen. The method further includes contacting a substrate with the coated pen array to thereby deposit the first ink indias a pattern of printed indicia on the substrate. The printed indicia form nanoreactors on the substrate and a halide perovskite nanocrystal nucleates and grows within each nanoreactor to form the halide perovskite nanocrystal array.

The present disclosure provides a copper-magnesium co-doped carbonized wood sponge material, a preparation therefor, and an application thereof, and a method for converting plastics into fuel based on a Fenton-like system. In the present disclosure, a copper-magnesium co-doped carbonized wood sponge catalyst is prepared by high-temperature pyrolysis after a wood raw material is coated with polydopamine (PDA) and a copper element and a magnesium element are loaded on a wood sponge substrate, realizing the loading of a nanoreactor on a wood sponge layered structure, and forming a unique spatial microenvironment and synergistic effect by combining a superior three-dimensional lamellar structure of the wood sponge substrate with the structural advantages of the nanoreactor to promote an electron transfer pathway on a surface.

The invention provides a phosphate positive electrode material, a preparation method thereof, a positive electrode plate and a lithium ion battery. The preparation method comprises the following steps: sequentially performing first drying and first sintering on first slurry containing a first lithium source, an iron source, a manganese source, a phosphorus source and a first carbon source to obtain a first precursor; second slurry containing a second lithium source, a second carbon source and the first precursor is sequentially subjected to second drying and second sintering, and a second precursor is obtained; dispersing the second precursor in an organic solvent to obtain a third precursor; and performing third drying and third sintering on third slurry containing a third lithium source, the microemulsion and a third precursor in sequence to obtain the phosphate positive electrode material. According to the method, the technical effect of remarkably improving the electrochemical performance and the energy density of the lithium manganese iron phosphate material is achieved by regulating and controlling the adding time of the lithium source and using the microemulsion dispersion system as the nano reactor.

The invention belongs to the technical field of nano material preparation, discloses a zero-dimensional perovskite nanocrystalline large-scale preparation method based on a room-temperature self-assembly strategy, and aims to solve the technical problems that in the prior art, the uniformity of a product is poor, high luminous efficiency and conductivity are difficult to achieve at the same time, and the wavelength cannot be accurately regulated and controlled. According to the method, a water-in-oil microemulsion system is adopted as a nanoreactor, and the high uniformity of nanocrystal growth is fundamentally guaranteed through a confinement reaction. The composition creatively comprises two ligands: one ligand is a pi-conjugated conductive main functional ligand with surface passivation and charge transfer functions, which solves the problem of poor conductivity caused by the traditional insulating ligand while ensuring high photoluminescence efficiency, and the other ligand is a competitive tuning ligand which forms dynamic competitive balance with the main ligand. The key problems of product uniformity, conductivity, wavelength controllability and the like are synergistically solved, and the prepared nanocrystal has high optical purity, high quantum yield and excellent conductivity.

The invention discloses a mesoporous hollow SiO2 nanoreactor as well as a preparation method and application thereof. The preparation method comprises the following steps: combining a cationic cluster with a hollow structure, which is formed by coordination and complexation of polyethyleneimine and metal ions, with a surfactant to form a micelle as a template, hydrolyzing tetraethyl orthosilicate to form silicified nano SiO2 spheres, and limiting the metal ions in a cavity, so as to obtain the nano SiO2 nanospheres. And roasting at high temperature to obtain the SiO2 nano reactor with the hollow mesoporous structure. When the hollow structure is used as a catalyst, the influence of mass transfer on catalytic reaction is eliminated, and meanwhile, the hollow structure can remarkably increase effective collision between active components of the catalyst and reactants through a confinement effect, so that the catalytic reaction is accelerated; the catalyst disclosed by the invention is simple in preparation process, has the advantages of uniformity, good thermal stability and high repeatability, is easy to realize automatic production, and is suitable for large-scale popularization.

The utility model provides a nanoreactor with a filtering function, which relates to the technical field of nanoreactors and comprises a reactor body, a controller is fixedly connected to the surface of the reactor body, an inlet pipe is fixedly connected to the surface of one side of the reactor body, an outlet pipe is fixedly connected to the surface of the bottom of the reactor body, and the outlet pipe is fixedly connected to the surface of the other side of the reactor body. A filter device is arranged on the surface of the outlet pipe, the filter device comprises a mounting barrel, the mounting barrel is fixedly connected with one end of the outlet pipe, a mounting groove is formed in the arc surface of the mounting barrel, and a rotating rod is fixedly connected to the inner wall of the mounting groove. And impurities in a finished product solvent can be efficiently and quickly separated and filtered, so that the quality of the finished product solvent is further improved, the equipment is more efficient and smoother in use, and the use effect and the working efficiency of the reactor body are further improved.

The invention relates to the fields of rare earth metal ions, reversed-phase colloid dispersion systems, doped nanocrystals and the like, in particular to a method for realizing rare earth metal ion core-shell doped zinc cadmium sulfide nanocrystals. The preparation method comprises the following steps: mixing aminated poly N-isopropylacrylamide, matrix metal salt, an aqueous solution of first rare earth metal salt and a solvent, and performing ultrasonic crushing to form a water-based nano reactor containing a first rare earth ion doped precursor; the preparation method comprises the following steps: carrying out ultrasonic pulverization on a poly (N-isopropylacrylamide)-polyethylene glycol amino copolymer, a matrix metal salt, an aqueous solution of a second rare earth metal salt and a solvent to form a water-based nano reactor containing a second rare earth metal ion doped precursor; mixing the two nano reactors, and performing high-pressure homogenization and nanocrystallization to form colloid; and adding the colloid into a sulfide aqueous solution, and sintering to obtain the rare earth metal ion core-shell doped nanocrystal. The rare earth metal ion doped nanocrystalline prepared by the method is of a core-shell structure, the diameter is 10-20 nanometers, and the thickness is 2-5 nanometers.

This invention discloses a hollow nanocatalyst for hydrogen production from ammonia decomposition, wherein ruthenium accounts for 0.1-2% of the total mass of the catalyst. The unique hollow structure of the catalyst provided by this invention helps to improve the conversion rate of ammonia decomposition reaction at low temperatures. At the same time, the sandwich shell structure of the hollow nanoreactor catalyst has a confinement effect, which can prevent the noble metal Ru from agglomerating at high temperatures and extend the service life of the catalyst, thereby solving the technical problems of high energy consumption and high cost in current ammonia decomposition processes.

The application belongs to the technical field of homogeneous catalysis, and discloses application of a ten-core 3d-4f supramolecular nanocage material in catalyzing a three-component Strecker reaction. The ten-core 3d-4f supramolecular nanocage material is used as a nanoreactor to realize synthesis of a biologically active drug precursor through the three-component Strecker reaction. The method has simple operation steps and can realize industrialized preparation. The prepared ten-core 3d-4f supramolecular nanocage material has high catalytic activity, catalytic stability and catalytic efficiency in catalyzing the three-component Strecker reaction.