45results about "Metal hydrides" patented technology

To provide a method and an apparatus that enable rehydrogenation after hydrogen release of borohydride composed of (HB)n(n≥4) as a hydrogen storage material so that the borohydride can be used repeatedly and the rehydrogenation can be performed without using a heating process.SOLUTION: A method for using a hydrogen storage material includes a rehydrogenation step of placing a hydrogen desorbed boron given by hydrogen being desorbed from borohydride composed of (HB)n(n≥4) under pressurized hydrogen of 4 MPa or more, whereby hydrogen is recombined with the hydrogen desorbed boron to form the borohydride. The rehydrogenation can be carried out without using a heating process. An exemplary embodiment of the hydrogen storage material is a hydrogen storage material supported on a bendable resin carrier.SELECTED DRAWING: Figure 2

The invention belongs to the technical field of hydrogen-containing compound preparation, and particularly relates to an electrochemical regenerated solvated aluminum hydride as well as a preparation method and application thereof. According to the method, an AlH3 dehydrogenation product aluminum powder is converted into a functional electrode, and aluminum is hydrogenated again under electrochemical driving by regulating and controlling the solvation environment of an electrolysis system to regenerate AlH3. The invention not only breaks through the dilemma that AlH3 is difficult to directly hydrogenate under the limitation of traditional thermodynamics, but also constructs a reversible material system, and provides a new research normal form for the development of the next generation of high-energy-density and recyclable hydrogen storage technology.

The utility model discloses a hydrolysis device applied to sodium methoxide wastewater, which comprises a support, a reaction kettle arranged on the support, a feed port, a water inlet, an exhaust port and an oil discharge port sequentially arranged at the top of the reaction kettle, a discharge port arranged at the bottom of the reaction kettle, a guide rod vertically arranged in the reaction kettle, a sliding sleeve sleeved on the guide rod, and a lifting pipe arranged on the side surface of the sliding sleeve. The upper end of the lifting pipe is connected with one end of a telescopic hose, the other end of the telescopic hose is connected with an oil outlet formed in the top of the reaction kettle, a supporting plate is arranged on the side wall of the reaction kettle, a first motor is arranged on the supporting plate, and an output shaft of the first motor penetrates through the side wall of the reaction kettle and extends into the reaction kettle. One end of the pulling rope is connected with the winding drum, and the other end of the pulling rope is connected with the sliding sleeve. The device disclosed by the utility model is high in hydrolysis efficiency, and the hydrolyzed oil phase and water can be quickly separated, so that the efficient recycling of the sodium methoxide wastewater is realized.

Provided are methods of producing cobalt-based nanoparticles (CoxBy NPs) of a pre-selected diameter. The methods include reducing Co2+ ions with a sodium borohydride (NaBH4) solution having a selected ratio of tetrahydroxyborate (B(OH)4−) to tetrahydroborate (BH4−) based on the pre-selected diameter, where the ratio of B(OH)4− to BH4− is positively correlated with the pre-selected diameter. Also provided are methods of using the CoxBy NPs to produce hollow metal nanospheres (HMNs). Methods of producing CoxBy NP core / metal shell structures are also provided, such methods including combining in an anaerobic galvanic exchange reaction a deaerated solution including CoxBy NP scaffolds and a deaerated solution including a metal. Also provided are methods of producing HMNs from the CoxBy NP core / metal shell structures. Compositions and kits that find use in practicing the methods of the present disclosure and using HMNs produced in accordance with the methods of the present disclosure, are also provided.

The invention relates to the field of metal hydrogenation equipment, and discloses a heat energy management system which comprises a reaction heat management device arranged on a reactor, the reaction heat management device comprises upflow and a reaction heat exchanger, the reactor comprises an air inlet pipe and an air outlet pipe, and the upflow is continuously introduced from the air inlet pipe below the reactor; the gas is discharged from a gas outlet pipe above the reactor; and the reaction heat exchanger is fixed on the outer wall of the reactor and can perform heat management on the reactor. A reaction heat management device is formed by ascending airflow and a reaction heat exchanger, hydrogenation reaction is carried out in a vertically arranged reaction container, metal powder is suspended by the ascending airflow to carry out hydrogenation reaction, and heat energy released in the reaction process is taken away by heat convection of the ascending airflow and the reaction heat exchanger; according to the method, the metal powder is added, local high temperature is avoided, the hydrogenation reaction process is easier to control, the controllability of the hydrogenation reaction is improved, and possibility is provided for continuous hydrogenation of the metal powder.

The invention relates to the technical field of metal hydrogenation, and discloses a metal hydride preparation method, which comprises: S1, gas introduction: continuously introducing hydrogen gas with a pressure of 1-6 MPa and a temperature of 50-500 DEG C into a vertical reactor to form an upflow from bottom to top; and S2, hydrogenation: continuously feeding metal powder with the particle size of less than 2000 microns through a feeding pipe, carrying out hydrogenation reaction under the lifting of ascending airflow, discharging the product from an air outlet pipe along with the airflow, and starting a reaction heat exchanger to control the temperature and maintain the temperature required by the reaction. According to the method, metal powder is suspended and dispersed through ascending airflow, gas-solid contact is enhanced, and the reaction efficiency is improved; upflow has the functions of reaction and heat dissipation, reaction heat is timely guided out through convection, and caking or melting caused by local overheating is prevented; by combining temperature regulation and control of the reaction heat exchanger, dynamic heat balance is realized, the reaction stability is effectively guaranteed, the purity and granularity uniformity of the product are remarkably improved, and the method is suitable for continuous and high-quality metal hydride preparation.

The invention provides an intelligent power supply system for solid-liquid fuel composite hydrogen production and high and low temperature fuel cell coupling. Comprising an aluminum hydride fuel tank, a methanol steam reforming hydrogen production reactor, a high-temperature proton exchange membrane fuel cell stack and a low-temperature proton exchange membrane fuel cell stack, an outlet of the aluminum hydride fuel tank is connected with an inlet of the high-pressure hydrogen storage bottle through a pipeline; an outlet of the high-pressure hydrogen storage bottle is connected with an anode inlet of the low-temperature proton exchange membrane fuel cell stack through a pressure reducing valve; according to the double-hydrogen-source cooperative coupling mechanism, through reaction characteristic complementation and energy gradient utilization, the inherent limitation of a single hydrogen source in fuel cell application is effectively solved, the traditional system architecture of a single hydrogen source and a single type of fuel cell is broken through, two hydrogen production modes and two electric pile technologies are creatively and deeply fused, and the energy utilization rate of the fuel cell is improved. The comprehensive breakthrough of the system in efficiency, dynamic response, fuel adaptability and reliability is realized.

The application relates to an N, N-dimethylethylamine aluminum alkane deuterated complex, preparation, application and alpha'-AlD3, and belongs to the technical field of energy materials and chemical synthesis. An aluminum alkane deuterated amine complex is prepared by reacting LiAlD4 with N, N-dimethylethylamine. The method has mild conditions and high yield, the obtained complex is stably present in a high-concentration solution, can be used as an efficient deuterium gas storage medium and a low-temperature deposition precursor, and can be used for preparing alpha'-AlD3.

This invention discloses a two-dimensional hydrogen germanene nanosheet, its preparation method, and its applications. The two-dimensional hydrogen germanene nanosheet has an ultrathin layered structure, with covalently modified hydrogen atoms on its surface, a lateral dimension of 100–300 nm, and a thickness of 5–10 nm. When activated by a specific wavelength laser, the two-dimensional hydrogen germanene nanosheet can photoexcite and generate singlet oxygen to destroy bacterial biofilms and kill bacteria. Simultaneously, it consumes local oxygen to create a staged hypoxic microenvironment, thereby inhibiting excessive inflammatory responses. After the light exposure ends, as the local oxygen level naturally recovers, it can further enhance the infection clearance function of immune cells, achieving continuous clearance of residual infection. This invention, through staged dynamic regulation of oxygen partial pressure, synergistically integrates direct bactericidal and immune clearance processes, ensuring antibacterial strength while reducing the risk of tissue damage and infection recurrence. It is suitable for the safe and effective treatment of implant-related biofilm infections.

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 discloses a synthesis method of a borohydride anion B11H14 <->. According to the synthesis method, hydroboron and halogenated hydrocarbon are taken as raw materials and are fully pyrolyzed in an organic solvent to prepare precursor salt, the precursor salt and quaternary ammonium salt are subjected to an ion exchange reaction, so that inorganic hydroboron is converted into organic quaternary ammonium salt, and then a poor solvent is adopted to achieve the purpose of crystallization and purification. According to the method, B11H14-can be efficiently synthesized, the yield can reach 70% or above, and the purity of B11H14-can reach 99.5% or above after repeated crystallization. The method is suitable for preparing the quaternary ammonium salt compound corresponding to high-purity B11H14-on a hectogram scale.

The method comprises the following steps: mixing germane raw material gas and an added first azeotrope in a mixing tower 1, feeding the mixture into an azeotropic tower 1, extracting an azeotropic component from the top of the azeotropic tower 1, extracting an azeotropic component from the side line of the azeotropic tower 1, feeding the azeotropic component into a mixing tower 2, mixing, feeding the azeotropic component into an azeotropic tower 2, and feeding the azeotropic component into an azeotropic tower 1; a second azeotrope is extracted from the top of an azeotropic tower 2, a second azeotropic component is extracted from the side line of the azeotropic tower 2 and enters a product tower, an electronic-grade 7N germane product is extracted from the top of the product tower, and a heavy component is extracted from the bottom of the product tower. The device comprises a mixing tower 1, an azeotropic tower 1, an azeotropic tower 1 condenser, an azeotropic tower 1 reboiler, a mixing tower 2, an azeotropic tower 2, an azeotropic tower 2 condenser, an azeotropic tower 2 reboiler, a product tower, a product tower condenser and a product tower reboiler. By adopting the special rectification purification method and device for the electronic grade 7N germane, the purity of the treated 7N germane product is greater than 99.99999%, the ethane content is less than 0.1 ppb, the ethylene content is less than 0.1 ppb, and the carbon dioxide content is less than 0.1 ppb.

The invention relates to the field of special gas preparation, and mainly relates to a preparation method of ethyl germane, which comprises the following steps: generating GeH3 free radicals from germane under the action of electric field ionization, and then generating Ge2H6 through coupling of the GeH3 free radicals. According to the method, germane is changed into GeH3 free radicals, an e-free radical and an H free radical through ionization, then the free radicals are coupled to enable 2GeH3 to generate Ge2H6, and meanwhile, 2H free radicals generate H2, so that ethyl germane is obtained. In the preparation method disclosed by the invention, the conversion rate of the ethyl germane is high and is obviously improved compared with the conversion rate of the ethyl germane in the prior art, and the ethyl germane is generated by utilizing germane, so that the problem that a large amount of germane is generated along with generation of the ethyl germane is solved.

A method of treating an at least partially unconsumed hydrogen generator cartridge including water and a metal hydride includes treating the at least partially unconsumed hydrogen generator cartridge to form a treated hydrogen generator cartridge. When subjected to testing conditions the treated hydrogen generator cartridge produces no hydrogen gas or produces hydrogen gas at a lower rate than the at least partially unconsumed hydrogen generator cartridge subjected to the testing conditions. The testing conditions include heating at less than or equal to 300 °C, agitation, exposing the metal hydride to a protic solvent, or a combination thereof.

The invention relates to the technical field of hydrogen storage materials, in particular to a doped symbiotic LaH2.46-La2O3 ultra-fine grain low-temperature reversible hydrogen absorption and desorption magnesium-based composite hydrogen storage material as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing LaH < 2.46-La > powder; the LaH < 2.46-La > powder is subjected to ball milling under the air atmosphere, and symbiotic LaH < 2.46-La2O3 powder is prepared; the preparation method comprises the following steps: carrying out ball milling on the symbiotic LaH < 2.46 >-La2O3 powder, Mg powder and Ni powder in an argon atmosphere to prepare nano composite powder; hydrotreating the composite powder; carrying out dehydrogenation treatment on the hydrogenated composite powder; the composite powder hydrogenation step and the hydrogenated composite powder dehydrogenation step are sequentially and repeatedly circulated for multiple times, and the composite powder is obtained. According to the scheme, excellent dynamic performance and cycling stability are achieved, and the composite material can be used as a hydrogen storage medium, can be used as an active medium for storing and transporting hydrogen in a solid-state hydrogen storage device, has the characteristics of high hydrogen storage density, relatively low hydrogen absorption and desorption temperature, good hydrogen absorption and desorption cycling stability, high safety, environment friendliness, low cost and the like, and has wide application prospects. And the application is not limited to a solid hydrogen storage device and can also be used as a heat exchange medium of a heat pump.

The present invention relates to a tank arrangement (10) comprising a tank (1) for liquid hydrogen, a boil-off management system (2) including a catalyst (3), and a heater arranged on the hydrogen side after a first pressure relief valve (5) and thermally connected to the catalyst (3), wherein the first pressure relief valve (5) is configured to open when a predetermined first pressure is exceeded, the heater being configured as a passive metal hydride heater (4) including a metal hydride, and a second pressure relief valve (6) is arranged between the first pressure relief valve (5) and the catalyst (3), the second pressure relief valve (6) being configured to open when a predetermined second pressure higher than the first pressure is exceeded.

To provide a method for producing borohydride and its sheet from hydrogen and boron by a relatively simple method.SOLUTION: The method for producing a hydrogen boride and a sheet thereof is characterized in that boron fine particles 21, an atmospheric pressure plasma generator 27, and a working gas containing hydrogen are used as main components, at least hydrogen is supplied to the atmospheric pressure plasma generator 27 as the working gas of the atmospheric pressure plasma generator 27, and the boron fine particles 21 are irradiated with atmospheric pressure plasma to produce a hydrogen boride 7 and a hydrogen boride sheet 8 which is a sheet thereof. Preferably, boron fine particles are added to the working gas. More preferably, it is desirable that a stirrer and a dish are added to the container, and the container is disposed so that the boron fine particles placed in the dish are irradiated with the atmospheric pressure plasma.SELECTED DRAWING: Figure 2

A process for producing diborane is provided which includes mixing boron halide with borohydride ionic liquid for providing a liquid reaction mixture, the liquid reaction mixture chemically reacting for producing gaseous diborane. There is also provided a related composition for producing diborane which includes boron halide and borohydride ionic liquid. Solvents are not needed in the mixture or in the composition to produce the diborane.

Provided are a preparation method and system for an alane and a use of the alane. The method comprises: preparation of triethylaluminum: using triethylaluminum as a seed and aluminum and hydrogen as raw materials to synthesize triethylaluminum by means of a direct synthesis method, wherein the newly synthesized triethylaluminum comprises triethylaluminum in an amount equal to the seed and triethylaluminum for alane synthesis; and preparation of alane: thermally decomposing the triethylaluminum for alane synthesis to obtain the alane, wherein the newly synthesized triethylaluminum in an amount equal to the seed is used as a new seed for new preparation of triethylaluminum. The present invention only consumes aluminum and hydrogen required for generating the alane during the preparation of alane, and other raw materials can achieve a balance between consumption and output during the production process, achieving recycling, low production costs, high safety performance, and low emissions.

The invention discloses a light component removal tower for producing high-purity diborane, and relates to the technical field of light component removal towers, the light component removal tower comprises a main body structure, the main body structure comprises a tower body, a condenser is arranged at the top of an inner cavity of the tower body, an upper pressing plate is arranged at the bottom of the condenser, a lower pressing plate is arranged at the bottom of the upper pressing plate, and a redistributor is arranged at the bottom of the lower pressing plate; through the design of the self-cleaning assembly, the blocked filter plate can be automatically cleaned, manual intervention is not needed, the problem that a filter screen is blocked due to impurity deposition is effectively solved, stubborn impurities such as solid particles and polymers with high adhesive force on the surface of the filter plate can be effectively removed through the synergistic effect of a cleaning roller, a helical gear ring and a gear, and the service life of the filter plate is prolonged. The normal filtering function of the filtering plate is guaranteed, efficient gas-liquid mass transfer in the light component removal tower is maintained, meanwhile, the defect that shutdown is needed in traditional manual cleaning is overcome, and continuous production of the light component removal tower is achieved.

The invention relates to a method for producing a metal borohydride from a metal boron oxide. A process for preparing a metal borohydride Me (BH4) n from a metal boron oxide Me (BO2) n, where Me is a metal or a molecule that exhibits metalloid behavior and can be used as a metal, and n is an integer that can correlate with the valence of the metal, where in a first fluidized bed step, the metal boron oxide is provided in a first fluidized bed. In a subsequent second fluidized bed step, the metal boride particles are provided in a second fluidized bed which is fluidized using hydrogen H2 gas in such an environment in which hydrogen chemically reacts with the metal boride particles to provide the metal borohydride.

The present invention relates to a carbon dioxide-derived porous carbon material with improved performance by polymer treatment and an efficient electrochemical method of producing hydrogen peroxide using same. More specifically, the present invention includes a porous carbon material synthesis method wherein carbon dioxide-containing exhaust gas or production-process waste gas is converted into porous carbon by reaction with a reducing agent containing boron, and an oxygen functional group is further introduced by heat treatment with a polymer containing the oxygen functional group.

This invention provides a technology that can shorten the hydrogen generation cycle in a configuration for generating hydrogen from hydrogen-generating materials. [Solution] The hydrogen generation device comprises a container for housing a hydrogen generation material that generates hydrogen by receiving light of a specific wavelength and whose hydrogen generation function can be regenerated by the supply of water; a light application unit for applying the light to the hydrogen generation material; a water supply unit for supplying water to the hydrogen generation material; and a control unit configured to control the light application unit and the water supply unit and to execute a hydrogen generation mode in which hydrogen is generated from the hydrogen generation material by the application of the light, and a regeneration mode in which the hydrogen generation function of the hydrogen generation material is regenerated by the supply of water.

A composition for electrolytes for calcium batteries which contains a calcium salt comprising a calcium atom, boron atoms, and hydrogen atoms and having a cage structure.

To provide a hydrogen production system that can improve the production cost of hydrogen.SOLUTION: A hydrogen production system comprises a hydrogen compound component slurry in which a hydrogen compound component is suspended in a solvent containing water, a first container, a second container whose internal temperature is higher than an internal temperature of the first container, a first route connecting the first container and the second container, and a second route connecting the first container and the second container, which is different from the first route, and is configured such that the hydrogen compound component slurry contained in the first container can be moved into the second container through the first route and that the hydrogen compound component slurry contained in the second container can be moved into the first container through the second route.SELECTED DRAWING: Figure 1

The present invention provides a boron hydride-containing composition, a hydrogen production system, and a fuel cell system, which use a boron hydride-containing sheet to achieve further improvement in hydrogen supply source performance. The boron hydride-containing composition according to the present invention contains a boron hydride-containing sheet and an electron donor, the boron hydride-containing sheet having a two-dimensional network including (BH) n (n ≥ 4, and n is an integer). At least a part of the electron donor is carried on the boron hydride-containing sheet, and by external stimulation, the electron of the electron donor is supplied to the boron hydride-containing sheet, and hydrogen is produced from the boron hydride-containing sheet into which the electron is injected.

To provide a novel method for synthesizing ammonia borane, which is a hydrogen storage material.SOLUTION: The present invention provides a method for synthesizing ammonia borane by reacting borohydride such as NaBH4 with ammonium salts such as NH4Cl and (NH4)2SO4 in ammonia water or by reacting borohydride with ammonia.SELECTED DRAWING: Figure 4

The invention relates to a method for producing isotope-enriched germanium-hydrogen compounds, comprising the following method steps: a) providing a gas of a highly chemically pure germanium tetrafluoride; and b) providing a reducing solution in an inert reaction container, the reducing solution containing an organic solvent and an alkali-aluminum hydride as the reducing agent; c) introducing the gas in the reducing solution; and d) condensing the gaseous germanium-hydrogen compounds produced by the reduction.

This invention provides a method for preparing α-aluminum trihydride by alkylaluminum conversion, comprising: Step 1, thoroughly dispersing micron-sized aluminum powder and trialkylaluminum in a solvent under the action of a stirring paddle in a mixing tank to obtain a suspension; Step 2, transferring the suspension to a reactor equipped with an internal microbubble generator for hydrogenation reaction with hydrogen gas, followed by vacuum flash evaporation to obtain dialkylaluminum hydride; Step 3, adding dialkylaluminum hydride and micron-sized aluminum powder to a solvent for hydrogenation reaction with hydrogen gas, filtering, washing the filter cake, and drying to obtain α-aluminum trihydride. The synthesis method of this invention solves the problems of high product cost, large solvent consumption, harsh synthesis conditions, and operational hazards associated with traditional aluminum trihydride synthesis routes. It achieves a high yield of α-aluminum trihydride, providing a guarantee for its wider application and demonstrating significant economic and social benefits.