Abstract: A fuel cell has a high heat recovery efficiency for effectively collecting heat discharged from a fuel cell stack. The fuel cell includes a power generating cell and a separator which are alternately laminated to constitute a fuel cell stack. The fuel cell stacks are disposed in the central area of a power generating reaction chamber to form two columns-by-two rows array in a plan view. A cross-shaped fuel reformer is arranged between the opposing sides of the fuel cell stacks.

Abstract: A hydrogen producing apparatus according to the present invention includes a hydrogen-generating-material containing vessel 1 for containing a hydrogen generating material, a water containing vessel 2 for containing water, a water supply portion for supplying water from the water containing vessel 2 to the hydrogen-generating-material containing vessel 1, a hydrogen outflow portion for leading out hydrogen from the hydrogen-generating-material containing vessel 1, a gas-liquid separating part 7 for separating water from a mixture of hydrogen and water discharged from the hydrogen-generating-material containing vessel 1, and a water collecting portion for collecting water separated by the gas-liquid separating part 7 into the water containing vessel 2.

Abstract: Electrochemical cells (10), such as fuel cells (12) and fuel reformers (14), with rotating elements or electrodes (34, 24) that generate Taylor Vortex Flows (28, 50) and Circular Couette Flows (58) in fluids such as electrolytes and fuels are disclosed.

Abstract: An apparatus, system and method are disclosed for producing energy from the controlled reaction of an alkali metal with water. The method comprises forcing a liquefied alkali metal through a filter that separates the liquid alkali metal into alkali metal droplets. The alkali metal droplets comprise small enough particles that the alkali metal droplets completely react in water to produce heat, steam, an alkaline hydroxide and hydrogen gas before the alkali metal droplets reach the surface of the water. The filter separates the alkali metal droplets at a sufficient distance to avoid recombining of the alkali metal droplets. The alkaline hydroxide is reduced to an alkali metal and water which can be reused in the system.

Abstract: An apparatus including storage means containing methanol and a peroxide, a housing containing a catalyst comprising at least one group 7, 8, 9, 10 or 11 transition metal, and means for introducing the methanol and the peroxide into the housing.

Abstract: Hydrogen generation materials are a complex hydride which generates hydrogen upon hydrolysis, and an aqueous solution comprising water for causing the hydrolysis, and an accelerator dissolved therein for accelerating a hydrogen generation reaction. A method of hydrogen generation by a hydrogen generator comprises a first step S1 of detecting that the internal pressure of a reactor is lower than a reference pressure, and supplying the aqueous accelerator solution to the reactor; a second step S2 of dissolving the complex hydride in the aqueous accelerator solution to cause a hydrogen generation reaction; and a third step S3 of detecting that the internal pressure of the reactor is higher than the reference pressure, and stopping the supply of the aqueous accelerator solution, and repeats the flow from the first step S1 to the third step S3.

Abstract: Disclosed is a flexible power supply including a hydrogen supply device connected to a flexible fuel cell, wherein the hydrogen supply device includes a moldable hydrogen fuel. In one embodiment, the flexible fuel cell is a sheet structure, and the hydrogen supply device is a flexible flat bag, wherein the fuel cell and the hydrogen supply device are adhered to complete a sheet of a flexible power supply. The sheet of flexible power supply can be put in the pocket of cloth or baggage, or directly sewn on the outside of cap or overcoat.

Abstract: A process for the generation of electricity and the production of a concentrated carbon dioxide stream using a molten carbonate fuel cell. Anode off-gas is at least partly fed to a catalytic afterburner wherein it is oxidized with an oxidant consisting of part of the cathode off-gas and/or part of a molecular oxygen containing external oxidant stream, which external oxidant stream has at most 20% (v/v) nitrogen. The oxidized anode off-gas is brought into heat exchange contact with the remainder of the cathode off-gas and the remainder of the external oxidant stream to obtain cooled anode off-gas and a heated mixture of cathode off-gas and external oxidant which are fed to the cathode chamber as the cathode inlet gas. As soon as a set point in the carbon dioxide concentration at the cathode chamber outlet is reached, part of the cooled anode off-gas is withdrawn from the process.

Abstract: The present disclosure is directed to a system for delivery of a target material and/or energy. The system includes a source configured to provide a mixture containing the target material and a non-target material, a delivery conduit coupled to the source to receive the mixture from the source, and an in-line extraction device concentric to the delivery conduit. The in-line extraction device is configured to selectively extract the target material and/or energy from the mixture in the delivery conduit and to delivery it to a downstream facility.

Abstract: An SOFC fuel cell stack system in accordance with the invention including a recycle flow leg for recycling a portion of the anode tail gas into the inlet of an associated hydrocarbon reformer supplying reformate to the stack. The recycle leg includes a controllable pump for varying the flow rate of tail gas. Preferably, a heat exchanger is provided in the leg ahead of the pump for cooling the tail gas via heat exchange with incoming cathode air. A low-wattage electrical reheater is also preferably included between the heat exchanger and the pump to maintain the temperature of tail gas entering the pump, during conditions of low tail gas flow, at a drybulb temperature above the dewpoint of the tail gas.

Abstract: Described herein is a means to incorporate catalytic materials into the fuel flow field structures of MEMS-based fuel cells, which enable catalytic reforming of a hydrocarbon based fuel, such as methane, methanol, or butane. Methods of fabrication are also disclosed.

Abstract: A method of operating a power generating system including a fuel cell coupled to an electrical buffer, wherein the fuel cell is further coupled to a steam reformer, comprising adjusting operation of the reformer based on a voltage affected by the electrical buffer while maintaining a steam to carbon ratio of the reformer to control charging of the electrical buffer by the fuel cell.

Abstract: The present invention generally relates to electrochemical systems for producing hydrogen and/or power. Various aspects of the invention are directed to reactor designs for producing hydrogen and/or power from a fuel and water, conducting ceramics and other materials for such systems, including mixed ionically and electrically conducting ceramics which can be used for hydrogen gas generation, control systems for such systems, and methods of operating such systems.

Abstract: A scalable endothermic reaction apparatus, system and method captures, concentrates, and converts atmospheric heat and humidity into diatomic hydrogen and stoichiometric oxygen for use within an exothermic device such as an engine, a turbine, or a fuel cell. No nitrogen or carbon compounds are introduced into the process utilized by the apparatus. All operating matter and energy utilized in the process is recycled in a closed loop system. Energy emitted from the exothermic device as waste is captured and immediately returned as waste hot water to the endothermic device. The waste output of the work-producing device is thus an exploitable asset that can be repeatedly returned in service through the endothermic device, without any emissions from an exhaust or tailpipe in the system. At peak efficiency, the exothermic and endothermic processes are formed as an apparatus that is thermally sealed in a free-standing and self-sustaining operating package.

Abstract: The present invention refers to the conversion of gaseous or gasifiable fuels with high methane content, such as natural gas, biogas, synthesis gas or gas originated from various industrial process rejects, with or without prior desulfurization and elimination of other contaminants, in a solid oxide fuel cell (SOFC), with special anodes, based on mixed oxides or metal oxides with a perovskite type structure, either or not nano structured, into light hydrocarbons, primarily ethylene and ethane.

Abstract: A hydrogen generating apparatus and a fuel cell using the same is provided. The hydrogen generating apparatus is adapted to a fuel cell, and includes a main body, an electromagnet, a magnetic element, a containing tank and a sliding element. The electromagnet is fixed on the main body. The magnetic element is movably disposed on the main body. The containing tank is fixed on the main body and is used for containing liquid water. The sliding element is slidiably disposed on the main body, wherein a solid fuel is fixed on the sliding element. When the electromagnet is electrified to generate magnetic force to drive a motion of the magnetic element, the magnetic element drives the sliding element to slide towards the containing tank, so that the solid fuel reacts with the liquid water in the containing tank to generate hydrogen.

Abstract: The present invention relates to a catalytic porous layer for oxygen activation that can be used in solid oxide fuel cells (SOFC) and dense ceramic membranes for oxygen separation at a high temperature. This porous layer is mainly composed of an electron and oxygen ion mixed conductive material and has a structure selected from simple perovskite-type structures, double perovskite-type structures or perovskite-related structures, i.e. structures such as the Ruddlesden-Popper, Dion-Jacobson and Aurivillius type.

Abstract: A hydrogen generation device includes a draft tube, containing grooves, water absorbing structures, capillary structures, and a water supply device. The wall of the draft tube has openings. The containing grooves are disposed below the draft tube and respectively aligned with the openings. Each containing groove is capable of containing a solid fuel. The water absorbing structures are respectively disposed in the containing grooves. Each water absorbing structure is located between the corresponding opening and corresponding solid fuel. The capillary structures are alternatively disposed on the internal wall of the draft tube. Each capillary structure is located between the two adjacent openings. The water supply device is disposed at one end of the draft tube. The water supply device supplies a liquid fuel into the draft tube, and the liquid fuel sequentially enters the containing grooves through the openings to sequentially react with the solid fuels and produce hydrogen.

Abstract: A fuel cartridge and a hydrogen storage method are provided. The fuel cartridge includes a plurality of reaction units. Each of the reaction units includes a first reactant, a second reactant, and a heating apparatus. The first reactant and the second reactant are separated from each other. The heating apparatus is capable of making the first reactant and the second reactant separated from each other contact with each other to generate hydrogen gas.

Abstract: A fuel cartridge of a fuel cell and a method for operating the fuel cartridge are provided. The fuel cartridge has a plurality of fuel units. At least one first fuel unit is selected form the fuel units and the first fuel unit is triggered to provide a fuel to the fuel cell. If the fuel produced by the first fuel unit is insufficient to provide for the fuel cell, at least a second fuel unit is selected from the fuel units. A temperature of the second fuel unit is detected, and if the temperature of the second fuel unit is lower than an upper-limit operating temperature, the second fuel unit is triggered to provide the fuel to the fuel cell.

Abstract: A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Abstract: A power generator having a fuel cell and a fuel container in an enclosure with a pneumatic slide valve interposed between the fuel cell and the fuel container. The fuel cell may provide water vapor which goes to react with the fuel of the container and result in a production of hydrogen for the fuel cell. The valve may be connected to a pressure sensitive membrane that is linked to the valve such that when the pressure within the enclosure increases, the membrane will begin to move and close the valve to cut off the supply of water vapor to the fuel to reduce hydrogen production and consequently the pressure. With a reduction or stoppage of hydrogen production, the pressure may decrease and the membrane may begin to open the valve to let in water vapor to the fuel to make more hydrogen.

Abstract: A hydrogen generator of the present invention comprises a reformer (1) including a reforming catalyst (1A) which allows a hydrogen-containing gas to be generated using a raw material and steam; a water evaporator (3) for generating the steam; a raw material supply passage (2) which supplies the raw material to the reforming catalyst (1A) of the reformer (1); a steam supply passage (4) which supplies the steam generated in the water evaporator (3) to the reforming catalyst (1A) of the reformer (1); a pressure releasing device (6) provided at the raw material supply passage (2) or the steam supply passage (4); an exhaust passage (7) which flows a gas exhausted from the pressure releasing device (6) and containing the steam; and a cooler (8) provided at the exhaust passage and configured to cool the gas.

Abstract: The present invention provides a hydrogen generator capable of estimating the remaining amount of hydrogen without adding a detection means, which leads to an increase in the cost, and a fuel cell system including the hydrogen generator.

Abstract: An embodiment of a cartridge for hydrogen production comprises a reaction chamber having a catalyst and a tank chamber comprising a reactant suitable for reacting with said catalyst for the production of gaseous hydrogen and comprising a fluidic conduit of connection between the tank chamber and the reaction chamber, the cartridge comprising a single body associated with a piston element, said piston element being suitable for defining in said single body said tank chamber and said reaction chamber, said piston element being activated for regulating the flow of the reactant in said fluidic conduit.

Abstract: A multiple adiabatic bed reforming apparatus and process involving stage-wise combustion and multiple reforming chambers. Co-flow and cross-flow occurs under laminar flow conditions. A reformer suitable for small scale production as well as large scale production. A passive stage-by-stage fuel distribution network suitable for low pressure fuel wherein the resistances in successive fuel distribution lines control the amount of fuel delivered to each combustion stage. Heat is captured from reforming syngas product to preheat gases before entering the reformer. Conditions that would produce unwanted coking or metal dusting are avoided or localized away from the heat exchangers to locations which can be cost effectively protected. A chemical reactor which has a core composed of a stack of metal plates that are diffusion bonded in face-to-face relationship.

Abstract: A fuel cell system is provided which can constantly control a fuel concentration of a liquid fuel supplied to a fuel cell, such as a DMFC. A DMFC system comprises a high-concentration cartridge in which a methanol aqueous solution having a concentration higher than a target fuel concentration is sealed, a water cartridge in which water is sealed, a mixing tank for mixing the methanol aqueous solution from the high-concentration cartridge with the water from the water cartridge to prepare the methanol aqueous solution having the target fuel concentration, and the DMFC for generating electricity by being supplied with the methanol aqueous solution from the mixing tank and air.

Abstract: Compositions are disclosed for storing and releasing hydrogen and methods for preparing and using same. These hydrogen storage and releasing materials exhibit fast release rates at low release temperatures without unwanted side reactions, thus preserving desired levels of purity and enabling applications in combustion and fuel cell applications.

Abstract: A power supply device is provided. The power supply device includes a fuel cell, a hydrogen generator, a check valve and an exhaust valve. The fuel cell has a hydrogen inlet and a hydrogen outlet. The hydrogen generator is connected to the hydrogen inlet and used for generating hydrogen. The check valve is disposed in the hydrogen inlet and used for preventing the hydrogen within the fuel cell from flowing to the hydrogen generator, and preventing exterior air from entering the fuel cell. The exhaust valve is disposed in the hydrogen outlet for exhausting the hydrogen within the fuel cell.

Abstract: A fuel cell system that employs an injector/ejector for providing fresh hydrogen and anode recirculation gas to the anode side of a fuel cell stack. The injector/ejector is operated with a variable frequency so that the injector open time at low stack current densities is long enough to allow a pressure drop to be provided in the anode flow channels to push out water that may have accumulated therein. In one embodiment, the injector/ejector control provides a minimum pulse width per cycle and a maximum frequency so that as the stack current density decreases below a certain value the frequency decreases from the maximum frequency to maintain the pulse width constant at the minimum pulse width.

Abstract: The present invention provides a catalyst for generating hydrogen containing at least one composite metal selected from the group consisting of a composite metal of platinum and nickel and a composite metal of iridium and nickel, the catalyst being used in a decomposition reaction of at least one compound selected from the group consisting of hydrazine and a hydrate thereof; and a method for generating hydrogen, including contacting the catalyst for generating hydrogen with at least one compound selected from the group consisting of hydrazine and a hydrate thereof. According to the invention, hydrogen can be efficiently generated with improved selectivity in the method for generating hydrogen that utilizes the decomposition reaction of hydrazine.

Abstract: A power generation system having a carbon production apparatus and a carbon fuel cell to generate electricity. The carbon production apparatus is functionally connected to the fuel cell to provide carbon to the fuel cell to generate electricity. The system is configured to power the carbon production apparatus with a portion of the electricity generated from the fuel cell.

Abstract: A hydrogen generator (101) is provided which comprises a third chamber (109) containing a catalyst (121), a first chamber (103) containing a fluid, a second chamber (105) containing a material that reacts with the fluid in the presence of the catalyst to generate hydrogen gas, and a valve (111) movable from a first position in which the flow of fluid along a pathway including the first, second and third chambers is enabled, to a second position in which the flow of fluid along the pathway is prevented.

Abstract: A method of using a catalyst body able to support gas flow therethrough and having a catalyst for promoting a catalytic reaction of a component of a first gas and being able to be regenerated by a second gas, comprising: providing at least the first gas and the second gas; and repeatedly moving successive parts of the catalyst body into communication with the first gas and then into communication with the second gas; wherein: the part of the catalyst body in communication with the first gas causes the component of the first gas to be reacted as the first gas passes though and exits the part of the catalyst body; and the part of the catalyst body in communication with the second gas has the catalyst of that part regenerated as the second gas passes through and exits the part.

Abstract: An electric automobile includes a fuel cell for power generation by supply of hydrogen and oxidizing agent, a hydrogen generating device for generating a gas containing hydrogen to be supplied to the fuel cell, and a motor driven by electricity generated by the fuel cell. The hydrogen generating device generates gas containing hydrogen by decomposing an organic compound-containing fuel, and includes a proton conductive partition membrane, a fuel electrode provided on one surface of the partition membrane to directly generate the gas containing hydrogen, a device for supplying, to the fuel electrode, water and organic compound-containing fuel capable of producing a proton as a result of electrochemical oxidization which can pass through the partition membrane, an oxidizing electrode provided on the other surface of the partition membrane, a device for supplying the oxidizing agent to the oxidizing electrode, and a device for generating and collecting the gas containing hydrogen.

Abstract: The present disclosure relates to processes and methods of generating hydrogen via the dehydrocoupling of amine boranes using ligand-stabilized homogenous metal catalysts. The amine-borane is shown by the formula (I), R1R2N—BHR3R4. A process is also shown for the preparation of a linear, branched or cyclic polymer which comprises a repeating unit of the formula (II), —[R1R2N—BR3R4]-n, by reacting HR1R2N—BHR3R4 in the presence of at least one ligand-stabilized metal catalyst.

Abstract: A heater has microchannels for uniform heating, and includes an upper plate having an inlet of material to be heated, a fuel inlet and an oxidant inlet. A lower plate has a heated material outlet and an exhaust gas outlet. A plurality of combustion thin plates and a plurality of heat transfer thin plates are alternately layered between the upper and lower plates. Each of the combustion thin plates and the heat transfer thin plates has an inlet hole of material to be heated, a heated material outlet hole, an oxidant hole, an exhaust gas hole, a fuel hole, and microchannels formed at respective corresponding positions. The upper plate is aligned with the combustion thin plate contacting the lower surface thereof, and the lower plate is aligned with the heat transfer thin plate contacting the upper surface thereof.

Abstract: There is disclosed a process for simultaneous co-production of electric power and a short chain carboxylic acid or salt thereof from a primary alcohol fuel. The primary alcohol can be obtained from coal, natural gas, wood waste or other biomass material. Moreover, there is disclosed a process that does not produce or release carbon dioxide and other greenhouse gasses. Specifically, there is disclosed a liquid fuel cell process technology provides electric power from coal, via a primary alcohol fuel, and allows a commercial scale electric power generating facility to capture at least 70% of the carbon contained in coal (or another carbon-based fuel source such as methane or biomass) for a beneficial and economically favorable use. The captured carbon is converted by the disclosed fuel cell process technology into industrial commodity chemicals such as formic and acetic acids.

Abstract: A fuel cell system that includes a control system for regulating the power produced by the fuel cell system. The fuel cell system includes a fuel cell stack adapted to produce electrical power from a feed. In some embodiments, the fuel cell system includes a fuel processing assembly adapted to produce the feed for the fuel cell stack from one or more feedstocks. The control system regulates the power produced by the fuel cell system to prevent damage to, and/or failure of, the system.

Abstract: A hydrogen supply system includes at least a hydrogen supply device for supplying hydrogen to a hydrogen storing device, and a hydrogen generating device producing hydrogen containing gas to be supplied to the hydrogen supply device. The hydrogen generating device produces the hydrogen containing gas by decomposing a fuel containing an organic compound, and includes a partition membrane, a fuel electrode provided on one surface of the partition membrane for generating hydrogen containing gas, a device for supplying a fuel containing the organic compound and water to the fuel electrode, an oxidizing electrode provided on the other surface of the partition membrane, a device for supplying an oxidizing agent to the oxidizing electrode, and a device for collecting the hydrogen containing gas directly from the fuel electrode.

Abstract: The present invention provides a method for generating a gas that may be used for startup and shutdown of a fuel cell. In a non-limiting embodiment, the method may include generating a nitrogen-rich stream; merging the nitrogen-rich stream with a hydrocarbon fuel stream into a feed mixture stream; and catalytically converting the feed mixture into a reducing gas.

Abstract: The present invention provides a gas generator that may be used for startup and shutdown of a fuel cell. In one non-limiting embodiment, the gas generator may include a nitrogen generator structured to receive air, extract oxygen (O2) from the air and discharge the balance in the form of a nitrogen-rich gas; a merging chamber structured to receive a hydrocarbon fuel and the nitrogen-rich gas and to discharge a feed mixture containing both the hydrocarbon fuel and the nitrogen-rich gas; and a catalytic reactor structured to receive the feed mixture and to catalytically convert the feed mixture into a reducing gas.

Abstract: A power generator has a hydrogen flow path through which moisture is induced to flow to a hydrogen-containing fuel that reacts with the moisture to produce hydrogen. The moisture passes to the hydrogen flow path through a water exchange membrane from a water vapor flow path. A fuel cell between the hydrogen flow path and the water vapor flow path reacts with the hydrogen in the hydrogen flow path to produce electricity, and to also principally produce the moisture in the water vapor flow path.

Abstract: A method for fueling a solid oxide fuel cell stack is provided. The method includes passing a first portion of hydrocarbon fuel through a catalytic hydrocarbon reformer to generate a first reformate. The first reformate is passed through a hydrocarbon cracker to generate a second reformate such that a portion of any non-reformed hydrocarbon fuel in the first reformate is converted to methane. The second reformate is supplied to the fuel cell stack.

Abstract: The method of generating and delivering on-demand power to the consumer in a low-carbon-emitting manner comprises the steps of: generating energy from a low-carbon-emitting source, using the generated energy to generate a hydrogen storage composition, transporting the hydrogen storage composition and a reagent to the consumer, facilitating the use of the hydrogen storage composition to generate electricity, and facilitating the return of the by-products to a regeneration facility. This method is preferably used to distribute an on-demand power source to the consumer. One potential advantage of this distribution method includes low carbon emissions. By leveraging low-emission energy sources, utilizing low-emission distribution channels, and placing the energy source (H2) and energy generation (conversion of H2 to electricity) in the consumer's hands, unexpected savings in environmental impact, as measured by carbon emission, can be achieved.

Abstract: A fuel cell system including a gas recycling and re-pressurizing assembly. In one embodiment, the fuel cell system includes a fuel cell stack, the stack having an oxygen outlet and an oxygen inlet. The fuel cell system additionally includes two gas/water separator tanks, each of the tanks containing a quantity of water and a quantity of oxygen gas. Both tanks are capable of being fluidly connected to either the oxygen inlet or the oxygen outlet of the fuel cell stack. In addition, the two tanks are connected to one another so that water may be transferred back and forth between the two tanks. The system also includes a pump for transferring water back and forth between the tanks.

Abstract: A multi-unit fuel cell system that includes a common-use reforming unit configured to supply hydrogen to multiple fuel cell units that are installed in multiple units, such as apartments within an apartment building. In one example embodiment, a fuel cell system including a common-use reforming unit and multiple fuel cell units is disclosed. The common-use reforming unit is configured to supply hydrogen to the plurality of fuel cell units. Each fuel cell unit includes a stack unit, an air supplying unit, an integral heat exchange unit, a hot-water supplying unit, an auxiliary heat supplying unit, and an electric output unit.

Abstract: Installation for the production and storage of renewable energy (1) provided for supplying an electricity-consuming unit (2) with electricity, the installation comprising solar panels (3) and a hydrogen production unit (4, 7, 8, 9, 10), which comprises an electrolyser (4) provided to produce hydrogen and oxygen when powered by the solar panels (3), a tank (8), and a compressor (10) for injecting the hydrogen provided by the electrolyser into the tank. The installation is characterised in that the solar panels (3) are provided to supply the electricity which they produce as a priority to the electricity-consuming unit (2) until the connected load of the unit is reached. Furthermore, the installation (1) comprises a branch connection unit (6) connected to the output of the solar panels and provided to direct a part of the electricity produced to the electrolyser (4) when the power produced by the solar panels exceeds the connected load.

Abstract: A unit consisting of a fuel cell, provided with a first ion-exchange membrane, and an electrolysis cell, equipped with a second ion-exchange membrane, capable of operating as an electrochemical hydrogen pump in which the electrolysis cell sucks in the discharge gas of the fuel cell anodic compartment which contains hydrogen as the main component, ionizes the hydrogen on a suitable anodic catalyst, sends the so formed protons across the second ion-exchange membrane to a suitable cathodic catalyst where the protons are reconverted to hydrogen which is mixed to the fuel cell hydrogen feed.

Abstract: A hydrogen generating material reacts with water to produce hydrogen and includes at least one metal material selected from the group consisting of aluminum, magnesium, and their alloys. The metal material includes particles with a particle size of 60 ?m or less in a proportion of 80 wt % or more. The hydrogen generating material can produce hydrogen easily and efficiently at low temperatures. A hydrogen generator can be made portable by using the hydrogen generating material. Moreover, the use of the hydrogen generating material as a hydrogen fuel source can reduce the size of a fuel cell and improve the electrical efficiency.