44 results about "Ammonia borane" patented technology

The invention discloses a single crystal boron nitride wafer batch preparation method based on a copper-nickel single crystal film and application, and belongs to the technical field of two-dimensional material preparation and nano electronic device manufacturing. The method comprises the following steps: forming a Cu80Ni20 (111) single crystal film on a c-plane sapphire substrate through magnetron sputtering and high-temperature annealing to serve as a growth substrate; carrying out thermal conversion treatment on the ammonia borane precursor to form a supply source system capable of stably releasing a borazine gas phase precursor; a porous structure quartz sleeve is adopted to regulate and control the release behavior of a precursor, and multi-wafer airflow homogenization control is realized in a CVD system through a quartz staggered wafer carrier; and carrying out epitaxial growth, and synchronously preparing more than 10 single crystal boron nitride wafers which are consistent in crystal orientation, smooth in surface and free of crystal boundaries in a single batch. According to the method, efficient, uniform and repeatable batch preparation of the high-quality monocrystal h-BN is realized, and the obtained wafer has atomic-scale flatness and excellent insulating property and is suitable for high-performance two-dimensional electronic devices, deep ultraviolet photoelectric devices and quantum device platforms.

The invention discloses a Ni / TiO2 (at) C nano-catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalysts. The preparation method comprises the following steps: mixing TiO2 (at) C powder, water and a nickel source precursor to obtain a suspension; and mixing the suspension liquid with a reducing agent, and carrying out a reduction reaction to prepare the Ni / TiO2atC nano-catalyst. The catalyst comprises a TiO2 (at) C nanosheet and Ni nanoparticles dispersed on the TiO2 (at) C nanosheet, wherein the average particle size of the Ni nano particles is 2.0 nm to 3.0 nm, and the content of the Ni nano particles is 12.8 wt% to 53.9 wt%. The catalyst shows excellent catalytic performance, 100% H2 selectivity and remarkable durability, and the TOF value of catalyzing ammonia borane to hydrolyze and produce hydrogen under the condition of no additive at 298 K reaches up to 253 min <-1 >.

The invention discloses a hexagonal scandium hydrogen compound and a preparation method thereof, and the preparation method comprises the following steps: taking a borane ammine complex as a solid hydrogen source, tabletting the borane ammine complex and elemental scandium through a mold, and stacking according to'hydrogen source-scandium-hydrogen source '; loading the assembly into a CVD diamond single crystal tube with holes, and carrying out secondary wrapping with NaCl to form a sealed reaction unit; carrying out segmented pressurization / depressurization in a cubic press, electrifying and segmented heating under the condition of 800-1200 DEG C, and carrying out pressure maintaining and cooling to complete synthesis; according to the method, local high hydrogen partial pressure is established under the action of moderate high pressure and double-layer sealing, external introduction of high-pressure hydrogen is avoided, and the equipment complexity and the safety risk are reduced; the product prepared by the invention is hexagonal-phase ScH3, can stably exist at normal temperature and normal pressure, and is different from cubic-phase ScH3 which can only be synthesized under an extreme high-pressure condition and cannot be kept stable after pressure relief, XRD and structure refinement are consistent with the standard, and the process can be repeated and amplified.

The application belongs to the technical field of catalysts, and discloses a supported ruthenium nanocluster catalyst Ru / CNT@CN, a preparation method and application thereof. The catalyst takes carboxylated carbon nanotubes as a carrier, has a carbon nitride shell outside the carrier, and has ruthenium nanoclusters inlaid on the surface of the carbon nitride shell in situ. The preparation steps are as follows: (1) a mixed acid solution composed of concentrated nitric acid and concentrated sulfuric acid is used to perform oxidation treatment on multi-walled carbon nanotubes, and the carbon nanotubes are washed and dried to obtain carboxylated carbon nanotubes, denoted as CNT; (2) first, the CNT, DCD, Ru metal salt and water are stirred at 50-100 DEG C for 2-12 h to obtain a dispersion liquid; then, the dispersion liquid is frozen with liquid nitrogen and subjected to freeze-drying treatment to obtain a catalyst precursor CNT@DCD-Ru; finally, the CNT@DCD-Ru is annealed at 500-700 DEG C for 2-8 h in a hydrogen-inert gas mixed atmosphere to obtain the target catalyst Ru / CNT@CN. The catalyst is applied in the hydrogen production by ammonia borane hydrolysis or the transfer hydrogenation reaction of nitroaromatic compounds. The catalyst prepared by the application has excellent catalytic activity and stability.

The invention discloses a preparation method and application of an AgCo / NiTiO3 ammonia borane alcoholysis hydrogen production catalyst with photocatalytic activity. NiTiO3 microrods are synthesized through a sol-gel method, then metal silver salt and cobalt salt are reduced into alloy through an ethylene glycol reduction method, the alloy is deposited on the surfaces of the NiTiO3 microrods, and the AgCo / NiTiO3 ammonia borane alcoholysis hydrogen production catalyst is obtained. The obtained sample has photocatalytic activity in the alcoholysis reaction of ammonia borane, and under the irradiation of visible light, the performance of catalyzing the alcoholysis of ammonia borane to produce hydrogen is remarkably improved. In addition, in the synthesis process, the silver-cobalt ratio can be regulated and controlled to further optimize the components of the catalyst; the whole preparation process is simple to operate, environment-friendly, good in experimental reproducibility, low in cost and easy for industrial production.

The invention discloses a preparation method of a catalyst for propionitrile hydrogenation to prepare propylamine, which comprises the following steps: mixing and grinding ammonia borane and hexagonal boron nitride, carrying out temperature programming pyrolysis, washing and drying to obtain a mesoporous BN material; then hydrogen is introduced for gradient etching, and gradient nitrogen vacancies are constructed; adding the gradient nitrogen vacancy BN carrier into a nickel-iron precursor solution and a triethylamine-ethanol mixed solution, and carrying out solvothermal loading to complete in-situ reduction and loading; and finally, applying the prepared catalyst to the propionitrile hydrogenation to prepare the propylamine. The catalyst prepared by the method has the characteristics of large specific surface area (700-900 m < 2 > / g), concentrated pore size distribution (2-15 nm) and the like, and shows excellent catalytic performance in a propionitrile hydrogenation reaction, the propionitrile conversion rate is greater than or equal to 98%, the propylamine selectivity is greater than or equal to 98.7%, and the dipropylamine generation amount is 1t; 0.5%; compared with the prior art, the invention has the advantages of simple preparation process, low cost, high catalyst activity, good stability, mild reaction conditions, low energy consumption, strong safety and good industrial application prospect.

The application provides a high-boron-content polymer and a preparation method and application thereof, and relates to the technical field of high polymer materials. The preparation method of the high-boron-content polymer comprises the following steps: dissolving polysilazane in an organic solvent under the protection of nitrogen or argon to obtain a polysilazane mixed solution; and adding ammonia borane to the polysilazane mixed solution under the condition of a temperature of-10 DEG C to 0 DEG C, and stirring and reacting to obtain the high-boron-content polymer. Under the condition of a temperature of-10 DEG C to 0 DEG C, the borohydride reaction between ammonia borane and polysilazane is assisted by low-temperature liquid phase, the high-boron-content polymer is prepared, ammonia borane is used as a boron source, the synthesis difficulty is reduced, and the synthesis efficiency is increased; the boron content of ammonia borane is high, and ammonia borane is non-toxic and safe; meanwhile, the synthesis can be completed under the condition of low temperature, the reaction is easier and safer, the synthesis efficiency of the synthesized polymer is improved, and the high-boron-content polymer can be generated in a large quantity.

The invention discloses a precursor treatment method for preparing a boron nitride film, and belongs to the field of two-dimensional material preparation. The precursor treatment method for preparing the boron nitride film comprises the following steps: heating ammonia borane powder in a hydrogen atmosphere at 120-140 DEG C to obtain ammonia borane with a stalactite-shaped structure. By regulating and controlling the structure and release behavior of ammonia borane, stable supply of a growth source is achieved, generation of by-products is inhibited, the film quality is improved, and the method is suitable for large-scale integrated preparation of device-level two-dimensional materials.

The invention relates to the technical field of ammonia borane hydrolysis hydrogen desorption, and provides an ammonia borane hydrolysis catalyst and a preparation method thereof. The preparation method comprises the following steps: preparing a graphene aerogel electrode; preparing an electrolyte comprising a phosphorus-containing compound and a transition metal compound according to a preset proportion; the graphene aerogel electrode and the electrolyte are subjected to an electro-deposition reaction under preset conditions, and the ammonia borane hydrolysis catalyst is obtained. According to the scheme, the problems that high-temperature and high-pressure conditions are needed in the existing catalyst preparation process and the green chemical principle is not met can be solved.

This invention discloses a bifunctional catalyst, its preparation method, and its applications. The preparation method includes: firstly, loading alumina onto SBA-15 via impregnation, followed by drying and calcination to obtain a composite support Al2O3-SBA-15; then, loading the noble metal Rh onto the composite support using a precipitation deposition method, followed by solid-liquid separation, washing, drying, calcination, and reduction treatment to obtain the Rh / Al2O3-SBA-15 bifunctional catalyst. In the catalyst prepared by this invention, the modification with Al2O3 enhances the metal-support interaction, improving the dispersion and stability of Rh. The catalyst of this invention exhibits excellent bifunctional catalytic performance, capable of efficiently catalyzing the hydrolysis of ammonia borane to produce hydrogen, and effectively reducing N-nitrosodimethylamine in water using in-situ generated hydrogen, achieving an integrated treatment process of "in-situ hydrogen production-simultaneous reduction." The preparation process of this invention is simple, convenient to operate, and operates under mild reaction conditions. The obtained catalyst has broad application prospects in the field of ammonia borane-assisted water pollutant treatment.

The application discloses alkylated hydrogen-rich vehicle fuel and a preparation method thereof, the raw material of the alkylated hydrogen-rich vehicle fuel comprises methanol, hydrogen activation release aids, polyisobutylene succinimide and di-tert-butyl peroxide; the production process comprises the following steps: preparation of hydrogen activation release aids, preparation of a primary catalyst, heat treatment and alkylation reaction of methanol, primary catalysis and secondary catalysis of methanol derivatives; the hydrogen-rich fuel production is integrated into a three-stage series process of methanol alkylation, primary catalysis dehydration and deoxidation and secondary catalysis reforming, and the problems of long traditional process flow, high risk of high temperature and high pressure, and serious hydrogen loss are overcome; the decyl trimethyl ammonium bromide-ammonia borane nano microsphere aid is prepared, the cleaner and the antioxidant are integrated, the controllable hydrogen release at high temperature, the stable storage at normal temperature, the oxidation inhibition and the carbon deposition inhibition are realized, and the fuel performance is improved; the multi-element synergistic catalyst is prepared, the acid site is regulated, the metal is anchored and the pore channel is constructed, and the high methanol conversion is realized.

The invention discloses a catalyst for producing hydrogen through catalytic decomposition of ammonia borane as well as a preparation method and application of the catalyst, and belongs to the technical field of catalytic functional materials and hydrogen energy. According to the technical scheme, the catalyst for producing the hydrogen through catalytic decomposition of the borane ammonia is composed of Ag and CoWO4, the mass ratio x of the Ag to the CoWO4 is 1%-5%, and the catalyst can achieve efficient catalytic decomposition of the borane ammonia to produce the hydrogen under the condition of the low Ag loading ratio and can be applied to various NaOH concentration conditions and solvent systems with different compositions. The invention also specifically discloses a preparation method of the catalyst for producing hydrogen through catalytic decomposition of ammonia borane and application of the catalyst for producing hydrogen through catalytic decomposition of ammonia borane. The preparation method of the catalyst for producing hydrogen through catalytic decomposition of ammonia borane is simple, the cost is relatively low, and industrial scale-up production and practical application of the catalyst in the field of producing hydrogen through catalytic decomposition of ammonia borane are convenient to realize.

The invention belongs to the technical field of ammonia borane hydrolysis hydrogen desorption, and discloses a Co-Co3B interface double-active-site modified wood charcoal catalyst as well as a preparation method and application thereof. The catalyst is of a core-shell structure and takes BNC as a shell and a Co-Co3B heterostructure as a core; the catalyst has double active sites: Co nanoparticles and Co3B nanoparticles, and an interface structure exists between Co and Co3B; wherein the BNC is boron nitride modified wood charcoal and has a porous structure. The Co-Co3B interface double-active-site modified wood charcoal catalyst is creatively designed, the existence of a BNC shell not only avoids catalyst deactivation but also limits agglomeration of metal particles, the introduction of Co3B increases active sites, meanwhile, an interface structure also exists between Co and Co3B, the electronic structure and coordination environment of the catalyst are optimized, and the catalytic activity of the catalyst is improved. Compared with the prior art, the catalyst provided by the invention has the advantages that the dissociation energy barrier of reactant molecules is reduced, the catalytic activity is improved, the catalyst has excellent catalytic performance in an NH3BH3 hydrolysis reaction performance test, and the hydrogen production rate of the catalyst reaches 10492 mL. Min <-1 >. GCo <-1 >.

The invention discloses an alkylated hydrogen-rich vehicle fuel and a preparation method thereof. The alkylated hydrogen-rich vehicle fuel comprises the following raw materials: methanol, a hydrogen activation release auxiliary agent, polyisobutylene succinimide and di-tert-butyl peroxide. The production process comprises the following steps: preparation of a hydrogen activation release auxiliary agent, preparation of a primary catalyst, heat treatment and alkylation reaction of methanol, and primary catalysis and secondary catalysis of a methanol derivative. Hydrogen-rich fuel production is integrated into a three-section series flow of methanol alkylation, first-stage catalytic dehydration and deoxidation and second-stage catalytic reforming, and the problems that a traditional technological process is tedious, high in high-temperature and high-pressure risk and serious in hydrogen loss are solved; the decyl trimethyl ammonium bromide-ammonia borane nano-microsphere auxiliary agent is prepared, a cleaning agent and an antioxidant are integrated, controlled release of hydrogen at high temperature and stable storage at normal temperature are realized, oxidation is inhibited, deposited carbon is removed, and the fuel performance is improved; a multi-element synergistic catalyst is prepared, acid sites are regulated and controlled, metal is anchored, pore channels are constructed, and high conversion of methanol is achieved.

The invention relates to the technical field of postharvest preservation of agricultural products, in particular to a fresh-keeping method and a fresh-keeping agent for fresh ginger based on a slow-release hydrogen technology. According to the method, the fresh ginger is treated by using a hydrogen release system consisting of ammonia borane and an iron-based catalyst as the fresh-keeping agent; the iron-based catalyst is ferric chloride and / or ferric chloride hydrate, and the addition amount of the iron-based catalyst is 3-10% of the molar weight of the ammonia borane; and the concentration of the ammonia borane in the hydrogen release system is 0.1-0.4 mol / L. The treatment method comprises the following steps: soaking the fresh ginger in the hydrogen release system aqueous solution, draining and storing. Cheap and easy-to-obtain ferric chloride is used for driving ammonia borane to realize slow and controllable hydrolysis hydrogen release for the first time, and a stable hydrogen-rich hydrogen regulation environment is created for fresh ginger storage, so that the hardness of fresh ginger is effectively maintained, the weight loss rate is reduced, membrane lipid peroxidation is inhibited, an antioxidant system of fresh ginger is activated, multi-dimensional aging is delayed, and the shelf life of fresh ginger is prolonged. The method has the advantages of low cost, simple operation, safety and environmental protection.

The application discloses a Pincer ligand rare earth metal catalyst and a preparation method thereof, and application of the Pincer ligand rare earth metal catalyst in preparation of primary amine borane compounds and secondary amine compounds. The Pincer ligand rare earth metal catalyst can be bonded with a nitrogen atom in a borane ammonia complex, thereby activating a B-H bond, so that the preparation of the primary amine borane compounds and the secondary amine compounds can be completed by using the borane ammonia complex. Compared with pinacol borane (HBpin), the borane ammonia complex (H3NBH3) has the characteristics of high stability, small toxicity and convenient storage as a boron source, and can reduce energy consumption and be environment-friendly in the reaction. In addition, the Pincer ligand rare earth metal catalyst has the advantages of simple source, small dosage and low preparation difficulty.

The application discloses a superfine cobalt phosphide nanocluster / carbon composite catalyst, a supported catalyst and a preparation method and application thereof, and belongs to the field of liquid hydrogen storage and nanometer catalyst preparation. A mild low-temperature 300-400 DEG C in-situ heat treatment strategy is adopted, so that the growth and agglomeration of metal nanometer particles under high temperature are avoided. The average size of the prepared superfine cobalt phosphide nanocluster can reach 4.40+ / -1.3 nm, the extremely small size provides a larger electrochemical active specific surface area, and catalytic active sites are fully exposed. Under the condition of 30 DEG C, the catalyst shows super-high catalytic activity for ammonia borane hydrolysis, and the conversion efficiency TOF is as high as 1188 h ‑1 , and the performance is far higher than that of most reported non-noble metal catalysts.

The invention discloses a carbon-doped tin dioxide loaded platinum-copper-nickel / cobalt catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalysis. The preparation method comprises the following steps: firstly, mixing a carbon source, a tin source and water for hydrothermal reaction to obtain a carbon-doped tin dioxide carrier precursor; calcining the precursor at different temperatures to obtain a carbon-doped tin dioxide carrier; and then loading metals platinum, copper and nickel / cobalt on the carrier by a step-by-step impregnation reduction method, and reducing by using a reducing agent to convert the metal platinum into single atoms, thereby obtaining the carbon-doped tin dioxide loaded platinum-copper-nickel / cobalt catalyst. The preparation method provided by the invention is simple and easy to operate, the monatomic platinum has relatively high activity, and meanwhile, the carbon-doped tin dioxide carrier has relatively high bonding performance with water and is beneficial to desorption of hydrogen, so that the catalyst has relatively high catalytic activity and is suitable for industrial production. The catalyst can be applied to hydrogen production through hydrolysis of ammonia borane.

The invention relates to a method for coating at least one fiber (11) with a boron nitride interphase, comprising treating the at least one fiber with a treatment medium containing ammonia borane, the treatment medium having a temperature of 100°C or more and a pressure of 1 bar or more.

The title of the invention is boron-containing adhesion promoter compositions and methods thereof. The adhesion promoter composition includes a substance that can include BH x and a solvent. Embodiments of the adhesion promoter composition can include methods of providing a substrate with a stable surface modification. The adhesion promoter composition can include a surfactant, such as an anionic surfactant, a cationic surfactant, or a non-ionic surfactant, such as polyethylene glycol p-(l,l,3,3-tetramethylbutyl)-phenyl ether, crown ether, polysorbate, or combinations thereof. The adhesion promoter composition can include an activator, such as ferric chloride, trimethyl borate, titanium tetrachloride, or combinations thereof. The substance that includes BH x may include ammonia borane, dimethylamine borane, trimethylamine borane, triethylamine borane, dicyclohexylamine borane, ethylenediamine bisborane, t-butylamine borane, diphenylphosphine borane, pyridine borane, borohydride, or combinations thereof.

The invention discloses a Pt-loaded core-shell structure cobalt molybdenum oxide catalyst as well as a preparation method and application thereof, and belongs to the field of renewable energy catalytic materials. The catalyst has a three-layer core-shell structure of'core-middle layer-hollow polyhedral framework ', Mo modified ZIF-67 is used as a precursor, and the precursor is oxidized for 1-4 hours in an air atmosphere at the temperature of 400-700 DEG C to form a cobalt molybdenum oxide carrier; and then dipping the cobalt molybdenum oxide carrier in a chloroplatinic acid solution, sealing and standing for 6-24 hours, drying, and heating to 300-600 DEG C in a protective atmosphere, so that the Pt nanoparticles are loaded on the outer surface of the hollow polyhedral skeleton. The preparation process is simple and controllable, the catalyst is excellent in activity and stability in hydrogen production by ammonia borane hydrolysis through the synergistic effect of a three-layer core-shell structure and a metal-carrier, the Pt consumption can be reduced, and the catalyst is suitable for a hydrogen energy field supply scene.

The application discloses a two-dimensional / three-dimensional cobaltosic oxide supported copper catalyst and a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: oxidizing and calcining ZIF-67 in air to obtain worm-connected cobaltosic oxide; immersing the worm-connected cobaltosic oxide in a copper salt aqueous solution, sealing and placing, drying, and then calcining in an inert atmosphere to obtain worm-connected cobaltosic oxide supported copper; and finally reducing and treating the worm-connected cobaltosic oxide supported copper with a sodium borohydride aqueous solution at room temperature to obtain the two-dimensional / three-dimensional cobaltosic oxide supported copper catalyst. In the method, the sodium borohydride reduction treatment can not only reduce the copper oxide into metal copper nanoparticles, but also induce the worm-connected cobaltosic oxide carrier to evolve into a two-dimensional / three-dimensional composite structure. The obtained catalyst has the copper nanoparticles uniformly supported on the two-dimensional / three-dimensional cobaltosic oxide, forms a metal-carrier synergistic effect, and exhibits excellent catalytic activity in a hydrogen production reaction of catalyzing ammonia borane hydrolysis at normal temperature and pressure.

The embodiment of the invention provides a molecular energy measurement method and device. The method comprises the following steps: acquiring a first quantum state of a to-be-tested molecule; inputting the first quantum state into paired excitation unitary coupling cluster quantum circuits for quantum operation to obtain an intermediate quantum state; the intermediate quantum state is copied and expanded to obtain an expanded quantum state, and the digit of the expanded quantum state is larger than that of the intermediate quantum state; scrambling the increased bit of the expanded quantum state compared with the intermediate quantum state to obtain a scrambled quantum state; inputting the intermediate quantum state into a first neural network to obtain a quantum state adjustment coefficient, and adjusting the scrambled quantum state by using the quantum state adjustment coefficient to obtain a second quantum state; and determining the molecular energy of the to-be-tested molecule based on the first quantum state and the second quantum state. According to the embodiment of the invention, the measurement accuracy can be improved on the basis of keeping the line depth and the calculation overhead. The embodiment of the invention can be applied to energy measurement of various molecules, such as borane, ammonia gas, carbon monoxide and the like.

The invention relates to plug-in agricultural solid hydrogen supply equipment and a continuous hydrogen supply method, the plug-in agricultural solid hydrogen supply equipment comprises a hydrogen supply container and a solid hydrogen storage material, the hydrogen supply container comprises a containing cavity, a liquid inlet and an exhaust hole, the liquid inlet and the exhaust hole are communicated with the containing cavity, and the solid hydrogen storage material is contained in the containing cavity of the hydrogen supply container; the hydrogen supply container is inserted into the agricultural substrate, liquid and the solid hydrogen storage material in the containing cavity are controlled to react to release hydrogen by regulating and controlling liquid inlet parameters of the liquid inlet, and hydrogen overflows to the agricultural substrate from the exhaust hole; the solid hydrogen storage material comprises at least one of magnesium hydride, calcium hydride, potassium hydride, ammonia borane, potassium borohydride, magnesium borohydride and calcium borohydride. By adjusting the liquid inlet parameters of the liquid inlet, such as liquid inlet material composition, liquid inlet amount, liquid inlet speed, liquid inlet pH value and the like, the process of supplying hydrogen to the agricultural substrate is simply and conveniently controlled, and the problems that hydrogen supply is not uniform, unstable, difficult to continue and the like are solved.

The invention provides a cerium oxide loaded PtPdRhRuNi high-entropy alloy cluster catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalysts. The catalyst comprises a carrier cerium oxide and a PtPdRhRuNi high-entropy alloy cluster loaded on the carrier. Through testing, the cerium oxide loaded PtPdRhRuNi high-entropy alloy cluster catalyst provided by the invention has relatively good cycling stability; and the catalyst has excellent catalytic performance in the reaction of hydrogen production through hydrolysis of ammonia borane.

The invention is applicable to the technical field of hydrogen production, and provides a preparation method and application of an MOF-derived multilayer carbon material catalyst, and the catalyst is prepared by taking cobalt-based MOF as a precursor, roasting at high temperature, and then carrying out DBD plasma treatment under specific conditions. DBD treatment can effectively reduce the particle size of the catalyst, increase exposure of active sites and improve the dispersity of cobalt species. The obtained catalyst is used for ammonia borane methanol decomposition hydrogen production reaction, efficient hydrogen production can be achieved under mild conditions, and the catalytic activity of the catalyst is equivalent to that of part of noble metal catalysts. The preparation method is simple in preparation process, low in energy consumption and environment-friendly, and a new way is provided for development of non-noble metal catalysts and application of ammonia borane hydrogen storage materials.

The invention discloses a Ru nano-particle catalyst for synthesizing hydrogenated bisphenol A as well as a synthesis method and application of the Ru nano-particle catalyst. The catalyst is synthesized by combining a sol method with ammonia borane gradient reduction: mixing 0.5-5mmol / L ruthenium salt aqueous solution with a composite alkaline reagent, performing microwave radiation and quenching to form ruthenium oxygen hydroxyl sol, dropwise adding ammonia borane solution in two stages for reduction, and performing post-treatment to obtain Ru nano-particles, and the Ru nano-particles are good in Ru dispersion. XRD (X-Ray Diffraction) of the catalyst shows a wide envelope peak when 2theta is 35-50 degrees. When the catalyst is used for bisphenol A hydrogenation reaction, the conversion rate and the selectivity both exceed 95%, the reduction rate is lower than 3% after 5 cycles, and the catalyst is obviously superior to a traditional catalyst and is suitable for industrial production.

The present application relates to the field of new energy technology, in particular to a method for controlling ammonia borane hydrolysis hydrogen release in solid phase system, the solid phase system is AB@metal M / aerogel porous material; the amount of water added to the solid phase system is controlled to control the amount of AB hydrolysis hydrogen release. The AB@metal M / aerogel porous material is: AB is encapsulated in the aerogel porous material loaded with metal catalyst M. The catalyst is loaded on the aerogel porous material, and AB can be encapsulated in these aerogel porous materials due to the certain solid morphology of the aerogel porous material. The amount of water added to the AB@metal M / aerogel porous material is controlled to control the AB hydrolysis hydrogen release process. The method for controlling hydrogen release in the solid phase system can solve the problem that the liquid phase hydrogen release process is difficult to control, and can be applied to vehicle-mounted energy devices, and has the characteristics of convenient vehicle-mounted, simple operation and easy process control.

The invention discloses a preparation method of a CuO-ZnFe2O4 two-dimensional structure catalyst and an application of the CuO-ZnFe2O4 two-dimensional structure catalyst. The method comprises the following steps: firstly, by taking soluble cupric salt as a raw material, preparing a two-dimensional CuO nanosheet through hydrothermal reaction in the presence of sodium hydroxide and lauryl sodium sulfate; and then dispersing the CuO-ZnFe2O4 in a mixed solution with the molar ratio of Zn < 2 + > to Fe < 3 + > being 1: 2, adsorbing, drying, and calcining in a nitrogen atmosphere to finally obtain the CuO-ZnFe2O4 two-dimensional composite catalyst. The whole preparation process is simple to operate, environment-friendly, very good in experimental reproducibility, low in cost and easy for industrial production. The CuO-ZnFe2O4 catalyst prepared by the method has very high catalytic activity in a reaction for producing hydrogen by alcoholysis of ammonia borane, the catalytic performance of the CuO-ZnFe2O4 catalyst is further improved under the irradiation of visible light, and the CuO-ZnFe2O4 catalyst shows an excellent application prospect.

The utility model discloses a reactor for hydrogen production from ammonia borane, which relates to the technical field of hydrolysis reactors and comprises a main shell, a reactor main body is arranged in the main shell, a liquid inlet pipe is fixed at the left end of the reactor main body, a liquid outlet pipe is fixed at the right end of the reactor main body, and a sealing cover is arranged at the upper end of the reactor main body. A gas pipe is fixed at the upper end of the sealing cover, a heating device is fixed at the lower end of the reactor main body, a stirring device is fixed at the upper end of the fixed plate and extends into the reactor main body, and a partition plate A, a partition plate B and a partition plate C are fixed at the upper end of the reactor main body. The partition plate A, the partition plate B and the partition plate C form a flow channel to form a narrow and uniform flow channel, and in the ammonia borane hydrolysis reaction, an ammonia borane aqueous solution and a catalyst flow in the flow channel and are in full contact, so that the contact area between reactants is greatly increased, and the reaction efficiency is effectively improved.