70results about "Reversible hydrogen uptake" patented technology

The present invention introduces novel methods and procedures to establish optimal conditions for ENERGY PRODUCTION, ensuring that the process is both reproducible and controllable. These methods utilize extremely strong electric fields that exists at the INTERFACE area between PRIMARY SOLIDs and SECONDARY SOLIDs that each have different work function values. Prescribed types of solids, having the highest work function values, allow absorbed HYDROGEN atoms to migrate to the INTERFACE area, followed by the ionization of HYDROGEN atoms within this area. The strong electric field will concentrate HYDROGEN ions in an extreme high density at the INTERFACE area. Preferred methods include the use of PRIMARY SOLIDs whose work function value is increased by the absorption of HYDROGEN, applying additional STIMULI and implementing fully enclosed INTERFACE areas. Increased work function values and / or additional STIMULI further improve the ionization and accumulation of HYDROGEN ions. Escape of accumulated HYDROGEN ions from the INTERFACE area is prevented by a suitable FULLY ENCLOSED INTERFACE area, safeguarding that accumulation of ions continues until the required threshold density of HYDROGEN ions is surpassing the required threshold density to initiate and maintain ENERGY PRODUCTION.

The present invention introduces novel methods to establish optimal conditions for the PRODUCTION OF ELECTRICITY. These methods utilize extremely strong electric fields at the INTERFACE areas between primary and secondary solids with different work function values. Prescribed high-work-function solids absorb HYDROGEN atoms, which ionize in the INTERFACE area. The strong electric field concentrates HYDROGEN ions in a high density at the INTERFACE. Preferred methods involve increasing the work function of primary solids by absorbing HYDROGEN, thereby strengthening the electric field at the INTERFACE. This high density of HYDROGEN ions at the INTERFACE causes HYDROGEN ions to escape from the surface of the composition of PRIMARY SOLIDs and SECONDARY SOLIDs, creating an abundance of electrons. Escaping HYDROGEN ions recombine at the surface of a suitable CATALYST, reducing the number of electrons in the CATALYST and establishing a potential difference between the composition of PRIMARY SOLIDs and SECONDARY SOLIDs and the CATALYST. An IMPEDANCE between these potentials enables electrons to establish electrical equilibrium, thereby transforming the composite and its associated process into a source of electricity. In the absence or presence of a high IMPEDANCE, a substantial potential difference is established. Discharge reactions occur under the appropriate conditions, emitting light that can serve as a light source or generate additional electrical energy through electrochemical cells.

The invention discloses a metal oxide / carbon / nickel composite material, a preparation method and application of the metal oxide / carbon / nickel composite material to a magnesium-based hydrogen storage material, and belongs to the field of hydrogen storage energy. The problems that a single-component catalyst in the MgH2 hydrogen storage material is low in active site, the interface is inactivated in the circulation process and the like are solved. A metal nickel source and a cerium source are combined with an organic ligand trimesic acid to form bimetal MOF, CeO2 / C / Nix obtained after calcination inherits the high specific surface area of MOF, metal is evenly dispersed in a carbon matrix, CeO2 / C / Nix is introduced into MgH2, microscale efficient catalysis of MgH2 is achieved, when the doping amount of CeO2 / C / Ni20 is 8 wt.%, the initial dehydrogenation temperature is 188.23 DEG C, and when the doping amount of CeO2 / C / Ni20 is 8 wt.%, the initial dehydrogenation temperature is 188.23 DEG C, and the specific surface area of CeO2 / C / Nix is 27.8 wt.%. After 10 cycles, the capacity retention rate is 98.8%, excellent hydrogen storage performance is shown, and a unique insight is provided for large-scale production of the magnesium-based hydrogen storage material.

A heat generating device includes: a sealed container; a tubular body provided in a hollow portion of the sealed container; a heat generating element provided on an outer surface of the tubular body and configured to generate heat by occluding and discharging hydrogen supplied to the hollow portion; and a flow path formed by an inner surface of the tubular body and through which configured to allow a fluid that exchanges heat with the heat generating element to flow. The heat generating element includes a base made of a hydrogen storage metal, and a multilayer film provided on the base. The multilayer film has a first layer made of a hydrogen storage metal and having a thickness of less than 1000 nm, and a second layer made of a hydrogen storage metal, which is different from that of the first layer, and having a thickness of less than 1000 nm.

The present invention relates to a hydrogen storage pellet that allows the production of compact, modular, safe and energy-efficient hydrogen storage. The pellet of the present invention comprises a peripheral ring (4) of an outer diameter of expanded natural graphite (ENG) of a predetermined height, surrounding a wafer of metal hydride (5) in the form of a compressed powder.

The application discloses an alkali metal hydride, a preparation method and application, and at least comprises the following steps: under a non-active atmosphere, ball milling raw materials containing alkali metal, an organic solvent and hydrogen to obtain the alkali metal hydride. The alkali metal hydride disclosed by the application has uniform particle size and wide application prospects in the fields of hydrogen storage, heat storage and catalytic synthesis; the preparation method is simple, suitable for large-scale and low-cost amplification, and has good development prospects and practical application value.

A metal modified graphene structure model is applied to predict hydrogen storage materials, comprising a structure simulation unit, a simulation data unit, a preparation measurement unit, a data processing unit and a parameter feedback unit; the structure simulation unit includes a graphene base structure composed of carbon atoms and a plurality of modified structure models pre-prepared for metal modification of the graphene base, combined into hydrogen storage materials; the simulation data unit calculates the structure of H2 molecules adsorbed on the hydrogen storage materials and calculates the simulation hydrogen storage data; the preparation measurement unit actually prepares the hydrogen storage materials and measures the actual hydrogen storage data; when the actual hydrogen storage rate data is greater than or equal to the first threshold value, the data processing unit calculates the difference percentage of the actual hydrogen storage data and the simulation hydrogen storage data, and outputs the data difference degree; otherwise, an abnormal warning signal is output; when the data difference degree is less than or equal to the second threshold value, the parameter feedback unit outputs that the hydrogen storage data of the preparation measurement unit is qualified, otherwise, an abnormal warning signal is output and feedback is performed, and data optimization is performed.

The invention discloses a hydrogen desorption system and method of a magnesium-based solid hydrogen storage reaction kettle, a hydrogen storage tank is placed in each placement position in an inner cavity of the reaction kettle, and each placement position is provided with a heat exchange coil pipe; the hydrogen desorption system comprises a hydrogen desorption part, a temperature control part and a safety protection part; the hydrogen desorption part comprises a hydrogen desorption main pipeline, a hydrogen desorption automatic switch valve is arranged on the hydrogen desorption main pipeline, and a vacuumizing pipeline is connected to the hydrogen desorption main pipeline in parallel; the temperature control part comprises an external heat-conducting oil circulating system, a flow bypass pipeline is arranged between the oil inlet pipeline and the oil return pipeline in a crossing manner, and a heat-conducting oil shunting automatic switch valve is arranged on the flow bypass pipeline; the safety protection part comprises a reaction kettle safety valve arranged on the reaction kettle, the reaction kettle safety valve is externally connected with an emptying pipeline, a pressure relief bypass pipeline is arranged between the emptying pipeline and the hydrogen desorption main pipeline in a crossing mode, and an automatic opening and closing pressure relief valve is arranged on the pressure relief bypass pipeline. The reaction kettle has the advantages that rapid and efficient hydrogen desorption of a plurality of hydrogen storage tanks in the reaction kettle is realized, and the system safety is ensured.

The application discloses a method for driving metal hydride reversible hydrogen storage by light. The method comprises the following steps: (1) introducing non-active gas into a sealed transparent reactor containing metal hydride powder; (2) applying light to the reactor to remove hydrogen and obtain a dehydrogenation product; (3) hydrogenating the dehydrogenation product in a hydrogen atmosphere to obtain the metal hydride; wherein the metal hydride is selected from at least one of alkali metal hydride, alkaline earth metal hydride and rare earth metal hydride; and the valence of hydrogen in the metal hydride is -1. In the application, the metal hydride can be directly driven by light energy, has high reactivity, and can realize reversible dehydrogenation cycle at normal temperature by using specific hydride, so that the process is simple and suitable for large-scale production.

The invention relates to a hydrogen direct-fired compressed CO2 energy storage system coupled with solid hydrogen storage, the hydrogen direct-fired compressed CO2 energy storage system comprises a solid hydrogen storage unit, a hydrogen direct-fired unit and a compressed CO2 energy storage unit, the solid hydrogen storage unit is connected with an inlet of the hydrogen direct-fired unit, and an outlet of the hydrogen direct-fired unit is connected with an inlet of the compressed CO2 energy storage unit; an outlet of the compressed CO2 energy storage unit is connected with an inlet of the hydrogen direct combustion unit; the compressed CO2 energy storage unit comprises at least two sections of compression devices, and each section of compression device is provided with an interstage heat exchanger. The system has the characteristics of zero carbon emission, safety, high efficiency and high energy utilization rate, and supports power grid peak regulation and zero carbon technologies.

The invention discloses a preparation method and application of a selective hydrogen adsorption type magnesium base material in a non-pure hydrogen atmosphere, and the preparation method comprises the following steps: carrying out thinning treatment on Ti3C2 MXene powder to obtain few-layer Ti3C2; the method comprises the following steps: weighing a MgH2 powder sample, pretreating, and then carrying out atomic layer deposition to obtain a sample subjected to atomic layer deposition coating treatment; carrying out ball milling treatment on the sample subjected to atomic layer deposition coating treatment and few-layer Ti3C2, so as to obtain MgH2-ZrTi; mgH2-ZrTi powder is weighed and pretreated, amorphous Al2O3 of 5 nm to 20 nm is deposited after pretreatment, and the selective hydrogen adsorption type magnesium-based material is obtained. The method disclosed by the invention is simple, efficient and easy to operate, is beneficial to large-scale production and application, and also fills the blank of air stability and selective hydrogen absorption of the hydrogen storage material.

This invention discloses a hydrangea-like NiO@NiMoO4 composite material and its preparation and application, which belongs to the technical field of hydrogen storage materials. This application utilizes a comprehensive combination of hydrothermal, calcination, and ball milling techniques to produce the composite material. The resulting material exhibits a microscopic hydrangea-like spherical morphology with particle diameters of 2-3 μm. When this material was blended with MgH2 to form an MgH2+10 wt% NiO@NiMoO4 composite hydrogen storage material, it began to release hydrogen at 190°C and rapidly released 6.44 wt% H2 within 4.5 min at 300°C, achieving 99.4% of the theoretical hydrogen release amount. This demonstrates that this composite hydrogen storage material has good low-temperature hydrogen storage / desorption mechanical properties, a high hydrogen storage / desorption capacity, and good cycling stability. Overall, this material has great prospects for application in hydrogen storage and may provide a new concept for the research and development of hydrogen storage materials.

The application discloses a preparation method of a black phosphorus doped magnesium-based novel hydrogen storage material, and the method comprises the following steps: mixing and ball-milling black phosphorus micro powder and magnesium powder obtained through electrochemical exfoliation under an inert gas atmosphere, and performing ultrasonic crushing to obtain a nano Mg / BP composite material; and performing heat treatment on the nano Mg / BP composite material under an H2 atmosphere to obtain a nano MgH2 / BP hydrogen storage material. The method uses cheap magnesium powder as raw material, embeds the magnesium powder between expanded black phosphorus layers by using a simple method combining ball-milling and ultrasonic crushing, uses lone pair electrons of the black phosphorus as anchor points to solve the problem of easy agglomeration of magnesium powder nanoparticles, simultaneously uses a large specific surface area of the black phosphorus and strong physical adsorption characteristics of the black phosphorus on hydrogen to expand the capacity of the hydrogen storage material, and finally uses the attraction ability of the lone pair electrons of the black phosphorus on high-valence magnesium in magnesium hydride to weaken Mg-H bonds and effectively reduce the dehydrogenation temperature. The preparation method has the advantages of low cost, short cycle, strong repeatability and wide application prospect in the field of hydrogen energy.

The application discloses a kind of carbon nanofiber load MnTi bimetallic microspheres, with the compound of transition metal titanium isopropyl titanate, manganese chloride tetrahydrate, polyvinylpyrrolidone PVP as raw material, carbon nanofiber load MnTi bimetallic microspheres PVP-MnTi are obtained by electrospinning method;Carbon nanofiber load MnTi bimetallic microspheres CNT-MnTi can be prepared by calcining again.The preparation method includes the following steps:1, the electrospinning of PVP-MnTi;2, the preparation of CNT-MnTi.As the application of MgH2 hydrogen storage catalyst, CNT-MnTi is ball milled with magnesium hydride, and a kind of magnesium hydride hydrogen storage material based on CNT-MnTi is obtained;Under the condition that the temperature programmed rate is 3 DEG C / min, the initial hydrogen release temperature is 180-190 DEG C;Under the condition that the hydrogen absorption pressure is 20-30bar, the hydrogen absorption temperature is 150-250 DEG C, the hydrogen absorption time is 200-600s, the hydrogen absorption amount is 5.8-6.2wt%;Under the condition that the hydrogen release temperature is 275-350 DEG C, the hydrogen release time is 240-360s, the hydrogen release amount is 4.0-6.1wt%.

This invention discloses an integrated hydrogen production, storage, and seawater desalination device utilizing the full spectrum of solar energy. From the inside out, it comprises a photocatalytic hydrogen production system, a catalytic hydrogen storage system, and a thermal evaporation seawater desalination system. The photocatalytic hydrogen production system absorbs ultraviolet light and some visible light to catalytically decompose water and produce hydrogen. Some visible and infrared light wavelengths are absorbed by the photocatalyst and photocatalytic solution and converted into heat. The catalytic hydrogen storage system absorbs unused visible and infrared light wavelengths and converts them into heat, transferring the waste heat generated by the photocatalytic hydrogen production system to the catalytic hydrogen storage system. The hydrogen produced by photocatalysis is transferred to the catalytic hydrogen storage system as a hydrogen source for hydrogen addition, achieving full-spectrum frequency-division hydrogen production and storage, and simultaneously realizing integrated hydrogen production and storage. The thermal evaporation seawater desalination system utilizes the waste heat from the catalytic hydrogen storage system to drive seawater evaporation to produce fresh water, achieving efficient full-spectrum utilization of solar energy.

This invention is a divisional application of Chinese invention patent application No. 202310608706.5, filed on May 28, 2023, entitled "Slow-Release Hydrogen Production Material Containing Nano-Silicon and Its Application in Aquatic Ecosystem Restoration". This invention discloses a slow-release hydrogen production material containing nano-silicon and its preparation method, belonging to the field of environmental protection technology. The invention involves sterilizing a 2-5% sodium alginate solution, cooling it to room temperature, adding 0.3-0.5% wt of nano-silicon to the sodium alginate solution, and stirring at 500-600 r / min at room temperature for 30-60 min to obtain a nano-silicon sodium alginate solution. The prepared nano-silicon sodium alginate solution is then added dropwise at a volume ratio of (1-5):1 to a 2-5% CaCl2 solution at a rate of 1 drop / second, and allowed to stand for 5-10 min to obtain the final product. The layered structure of this material allows the nano-silicon material to be uniformly distributed and stably produce hydrogen within the sphere.

The invention relates to a magnesium-based hydrogen storage material and a preparation method thereof, and belongs to the technical field of hydrogen storage alloy materials and preparation thereof. The hydrogen storage material is an Mg-5Ni alloy with Sm powder uniformly distributed on the surface layer and an amorphous / nanocrystalline structure in the interior. The Sm powder is wrapped by the surface layer of the Mg-5Ni alloy to form composite powder of a core-shell structure; the hydrogen storage material is prepared from Mg-5Ni alloy powder and Sm powder as raw materials, and the raw materials are mixed and then subjected to dry ball milling. The hydrogen absorption and desorption kinetics of the existing magnesium-based hydrogen storage material can be effectively improved, the hydrogen desorption activation energy of the magnesium-based hydrogen storage material is reduced, and the problem that a solid additive is difficult to uniformly distribute on the surface is solved.

Processes for producing a hydrogen-enriched gas stream are described. A hydrocarbon containing feed is processed in a hydrogen production process unit, and the synthesis gas formed is subjected to a water gas shift reaction. The shifted synthesis gas is sent for processing to recover hydrogen and carbon dioxide. The hydrogen and carbon dioxide recovery processes involve separating a purified hydrogen product stream and a purified carbon dioxide stream from the shifted synthesis stream and recycling synthesis gas to the reforming feed after recovery of CO2 and H2, thereby avoiding carbon slip from the process and lowering the overall carbon intensity.

The application discloses a kind of solid metal hydride continuous hydrogen release device and process, belong to solid hydrogen storage technical field, the device includes: solid hydrogen storage material storage bin, high-pressure hydrogen cylinder, solid hydrogen storage material hydrolysis hydrogen release bin and hydrogen pipeline;Solid hydrogen storage material storage bin one end is connected with high-pressure hydrogen cylinder, the other end is connected with solid hydrogen storage material hydrolysis hydrogen release bin, and high-pressure hydrogen cylinder provides pressure for the feeding of solid hydrogen storage material storage bin, and transports solid hydrogen storage material to solid hydrogen storage material hydrolysis hydrogen release bin, and solid hydrogen storage material hydrolysis hydrogen release bin is hydrolyzed hydrogen release reaction by extracting natural water with solid hydrogen storage material and releases hydrogen, and the other end of solid hydrogen storage material hydrolysis hydrogen release bin is connected with hydrogen pipeline, and the generated hydrogen is supplied to fuel cell for use.The application carries out continuous hydrogen delivery for the device with small internal space and long-time hydrogen demand, solves the problems such as heat dissipation and water extraction in hydrogen production process, and realizes the controllable hydrogen release of hydrolysis hydrogen storage material in water.

The present application is generally directed to gas storage materials such as activated carbon comprising enhanced gas adsorption properties. The gas storage materials find utility in any number of gas storage applications. Methods for making the gas storage materials are also disclosed.

To provide a hydrogen production system and a hydrocarbon production system reduced in operation cost.SOLUTION: A hydrogen production system includes a hydrogen compound member, a water supply member for supplying water to the hydrogen compound member, and a heat recovery device for recovering adsorption heat generated when hydrogen generated by decomposing a part of water into hydrogen and oxygen in the presence of the hydrogen compound member is adsorbed by the hydrogen compound member. The hydrocarbon production system includes a hydrogen compound member, a water supply member that supplies water to the hydrogen compound member, a heat recovery device that recovers heat of adsorption generated when hydrogen generated by decomposition of a portion of the water into hydrogen and oxygen in the presence of the hydrogen compound member is adsorbed by the hydrogen compound member, a heating device that heats the hydrogen compound member to which the hydrogen has been adsorbed, and a gas supply device that supplies a carbon dioxide-containing gas containing carbon dioxide to the hydrogen compound member.SELECTED DRAWING: Figure 1

The invention discloses a solid-state metal hydride continuous hydrogen release device and process, and belongs to the technical field of solid-state hydrogen storage, the device comprises a solid-state hydrogen storage material storage bin, a high-pressure hydrogen cylinder, a solid-state hydrogen storage material hydrolysis hydrogen release bin and a hydrogen conveying pipeline; one end of the solid hydrogen storage material storage bin is connected with the high-pressure hydrogen cylinder, the other end of the solid hydrogen storage material storage bin is connected with the solid hydrogen storage material hydrolysis hydrogen releasing bin, and the high-pressure hydrogen cylinder provides pressure for feeding of the solid hydrogen storage material storage bin. The solid hydrogen storage material hydrolysis hydrogen release bin performs hydrolysis hydrogen release reaction with the solid hydrogen storage material by extracting natural water and releases hydrogen, the other end of the solid hydrogen storage material hydrolysis hydrogen release bin is connected with a hydrogen conveying pipeline, and the generated hydrogen is supplied to a fuel cell for use. Continuous hydrogen conveying is carried out for a device which is narrow in internal space and needs hydrogen for a long time, the problems of heat dissipation, water taking and the like in the hydrogen production process are solved, and controllable hydrogen release of a hydrolysis hydrogen storage material in water due to the fact that the hydrolysis hydrogen storage material is prone to violent reaction is achieved.

A method of synthesising a siloxane hydrogen carrier compound using a thermal plasma reactor. The method comprises introducing silica or a silicate compound, or a mixture thereof, into the reaction chamber of a plasma reactor, generating a thermal plasma in the reaction chamber, and contacting the silica or a silicate compound or mixture thereof with the thermal plasma in the presence of hydrogen or a hydrogen-containing gas mixture.

The invention belongs to the technical field of crossing of advanced energy materials and green catalysis technologies, and relates to a hydrogen storage catalytic composite material as well as a preparation method and application thereof. The hydrogen storage catalytic composite material is formed by compounding a solid hydrogen storage material and a supported catalyst according to a mass ratio of (1-3), the solid hydrogen storage material is MgH2 particles and LaNi5 particles; the supported catalyst comprises a carrier and active components supported inside and on the surface of the carrier, the carrier comprises one of Al2O3, SiO2, activated carbon and a molecular sieve, and the active components are one or more of Ni, W, Mo, Co, Pd and Pt. A close contact interface is formed between the two materials through ball milling, hydrogen atoms released by the hydrogen storage material at the reaction temperature rapidly overflow to the surface of the catalyst through the interface, continuous active hydrogen is provided for the hydrogenation reaction, mass transfer limitations such as hydrogen dissolution and diffusion in a traditional system are avoided, and a local hydrogen-rich environment is created.

This hydrogen production system comprises: a hydrogen compound member; a water supply member for supplying water to the hydrogen compound member; and a heat recovery device for recovering adsorption heat that is generated when hydrogen, which is generated by decomposing some of water into hydrogen and oxygen in the presence of the hydrogen compound member, is adsorbed to the hydrogen compound member. This hydrocarbon production system comprises: a hydrogen compound member; a water supply member for supplying water to the hydrogen compound member; a heat recovery device for recovering adsorption heat that is generated when hydrogen, which is generated by decomposing some of water into hydrogen and oxygen in the presence of the hydrogen compound member, is adsorbed to the hydrogen compound member; a heating device for heating the hydrogen compound member to which hydrogen is adsorbed; and a gas supply device for supplying a carbon dioxide-containing gas that contains carbon dioxide to the hydrogen compound member.

The present application relates to hydrogen production health care technical field, especially to a hydrogen traditional Chinese medicine co-inhale atomization system and atomizer, the atomizer of the present application includes a shell, a power control system, a hydrogen traditional Chinese medicine co-inhale atomization system, a pneumatic induction counting switch and a filter suction nozzle, the power control device includes a battery and an integrated control circuit, the hydrogen traditional Chinese medicine co-inhale atomization system includes a hydrogen supply bin and a traditional Chinese medicine atomization bin, a heating system allowing pyrolysis hydrogen release is arranged inside the hydrogen supply bin, the hydrogen supply bin is arranged below the traditional Chinese medicine atomization bin and is counter-coupled with the traditional Chinese medicine atomization bin, the power control system, the hydrogen traditional Chinese medicine co-inhale atomization system, the pneumatic induction counting switch and the filter suction nozzle are all arranged inside the shell, the integrated control circuit is connected with the battery, the heating system, the pneumatic induction counting switch and the traditional Chinese medicine atomization bin respectively, the power supply is arranged below the integrated control circuit, the hydrogen supply bin is arranged above the integrated control circuit, the pneumatic induction counting switch is arranged between the hydrogen supply bin and the traditional Chinese medicine atomization bin, and the filter suction nozzle is arranged on the top of the traditional Chinese medicine atomization bin.

A container for storing hydrogen in a solid state, having a storage body (34) made of metal for storing hydrogen in the form of metal hydride, a casing (35), which contains the storage body ((3344)) and has aann opening (36) for hydrogen injection and extraction in gaseous form, and at least one heating band (37) arranged in the thickness of the casing (35) or around the casing (35) for heating the storage body (34) so aass to allow a chemical capture rreeaaccttiioonn and a chemical rreelleeaassee reaction of the hydrogen by the storage body (34). The storage body (34) is made of magnesium doped with magnesium fluoride and has a lattice structure (38) defined by a plurality of elementary cells (39) having the same shape as a three-dimensional gyroid.

Disclosed is a method of: providing a hydrogenated sp2 carbon allotrope, and releasing hydrogen gas from the carbon allotrope. The method may be used an apparatus having: a vessel for containing the hydrogenated sp2 carbon allotrope, a fuel cell capable of using hydrogen gas a fuel, and a tube for transporting hydrogen gas from the vessel to the fuel cell. The carbon allotrope may be made by: providing a mixture of an sp2 carbon allotrope and liquid ammonia, adding an alkali metal to the mixture, and sonicating the mixture to form a hydrogenated form of the carbon allotrope. The hydrogenated carbon can be at least 3.5 wt % hydrogen covalently bound to the carbon.

The invention discloses an adsorption bed, an efficient thermal management solid hydrogen storage system and a solid hydrogen storage method, and belongs to the technical field of hydrogen energy. A channel for heat exchange fluid to flow is arranged in the core body, and the core body is arranged in the shell; wherein an adsorbent is filled between the shell and the core body, and a mass transfer channel for adsorbate to pass through is reserved between the shell and the core body. The adsorption bed disclosed by the invention is based on the characteristics of extremely high equivalent heat conductivity and extremely large specific surface area of the micro heat pipe array, and is combined with the parallel flow pipes, so that efficient heat transfer of the adsorption bed can be realized.

The invention relates to preparation of a magnesium hydride hydrogen storage material and a hydrogen production method thereof, and belongs to the technical field of magnesium hydride hydrogen production. The preparation method of the magnesium hydride hydrogen storage material comprises the following steps: in an inert gas atmosphere, putting magnesium hydride, ruthenium powder and an N / P composite doped catalyst into a ball mill, and carrying out ball milling to obtain the magnesium hydride hydrogen storage material. Through cooperation of the N / P composite doped catalyst, the ruthenium powder and other components, by means of the anchoring dispersion effect of a porous structure of graphite in the catalyst on nickel / cobalt metal ions and the weakening effect of the ruthenium powder on Mg-H bond energy, the hydrogen absorption and desorption activation energy is remarkably reduced, and the hydrogen production performance of the magnesium hydride hydrogen storage material is remarkably improved.