JP5201394B2 - Porous material for hydrogen generation, method for producing the same, and method for generating hydrogen - Google Patents

Description

  The present invention relates to a hydrogen generating porous body containing a hydrogen generating agent that reacts with a reaction liquid such as moisture to generate hydrogen gas, a method for producing the same, and a method for generating hydrogen, and more particularly for supplying hydrogen to a fuel cell. Useful as technology.

  Conventionally, as a hydrogen generating agent for generating hydrogen gas by supplying water, a main component is a metal such as iron or aluminum, or a main component is a metal hydride compound such as magnesium hydride or calcium hydride. Those are known (for example, see Patent Document 1). In particular, when using a highly reactive hydrogen generator such as calcium hydride, the reaction rate with water is steep, so if water is supplied as liquid (water), hydrogen gas will explode in the initial stage. There was a problem that it occurred.

  Therefore, in Patent Document 2, for the purpose of appropriately controlling the reaction rate between the metal hydride compound and moisture, a water-repellent porous body is interposed between the metal hydride compound and water, through which water vapor is generated. A method for generating hydrogen to be supplied to a metal hydride compound is disclosed. However, this method has a problem that the handling of the hydrogen generating agent becomes complicated and the structure of the hydrogen generating apparatus becomes complicated.

  On the other hand, Patent Document 3 discloses a compression molded body for hydrogen generation obtained by compression molding after mixing a metal hydride complex compound powder that reacts with an acid aqueous solution to generate hydrogen gas and a thermoplastic resin powder. Has been. In this compression molding for hydrogen generation, hydrogen gas is generated using a device that supplies and reacts with an aqueous acid solution while scraping the surface with a rotating plate.

Japanese Patent Laid-Open No. 2003-314792 JP 2003-313001 A JP 2003-146604 A

  However, the above-mentioned compression molded body for hydrogen generation is compression-molded at a high density so as not to permeate the aqueous acid solution for the purpose of shortening the time until the hydrogen generation is stopped, so that the reaction does not proceed to the inside. It is. For this reason, there is a problem that the reaction does not proceed only in the vicinity of the surface only by contacting with the acid aqueous solution, and the reaction rate is remarkably lowered when the above apparatus is not used.

  Accordingly, an object of the present invention is to provide a hydrogen generating porous body that has good handleability, can generate hydrogen appropriately by contacting with a reaction solution, and has a sufficiently high reaction rate, a method for producing the same, and a hydrogen generating method. Is to provide.

  The inventors of the present invention have intensively studied to achieve the above object, and as a result, a porous body obtained by mixing and foaming a hydrogen generator and a thermosetting resin or the like to obtain a suitable hydrogen can be obtained by simply contacting with the reaction liquid. It has been found that it can be generated and the reaction rate is sufficiently high, and the present invention has been completed.

  That is, the hydrogen generating porous body of the present invention is characterized by containing a granular hydrogen generating agent and a resin. According to the porous body for hydrogen generation of the present invention, since it has a porous structure, the permeability of the reaction liquid is good, and appropriate hydrogen generation is possible only by contacting with the reaction liquid. Further, by using the resin, the porous structure is appropriately collapsed and the reaction easily proceeds as a whole, so that a sufficient reaction rate is easily obtained. Furthermore, since the reactivity of the hydrogen generator is suppressed to some extent by the resin, the handleability is improved.

  In the above, it is preferable that the resin is a thermosetting resin. By using a thermosetting resin, even if reaction heat is generated, the porous structure is less likely to be clogged, and the reaction is more likely to proceed as a whole, so that a sufficient reaction rate is easily obtained.

  Moreover, it is preferable that the porous body for hydrogen generation of the present invention is made porous by bubbles. In the porous structure generated by the bubbles, the boundary wall between the bubble cells tends to be thin, and the reaction easily proceeds to the whole while it is appropriately collapsed.

The density of the hydrogen generating porous body is preferably 0.1 to 1.2 g / cm ³ . By having a density in this range, the permeability of the reaction solution becomes appropriate, and the handleability becomes better.

  The hydrogen generator preferably contains a metal hydride compound. The metal hydride compound can generate hydrogen gas by reaction with water, and can easily form a porous structure with bubbles using this.

  On the other hand, in the method for producing a porous body for hydrogen generation according to the present invention, after mixing a granular hydrogen generator and an uncured thermosetting resin, a thermosetting resin is produced while generating hydrogen gas from the hydrogen generator. It includes a step of curing. According to the method for producing a porous body for hydrogen generation of the present invention, by a simple method, handleability is good, moderate hydrogen generation is possible only by contacting with a reaction solution, and the reaction rate is sufficiently high. A porous body can be produced.

The density of the hydrogen generating porous body obtained by the production method of the present invention is preferably 0.1 to 1.2 g / cm ³ . By having the density in this range, the permeability of the reaction solution of the obtained hydrogen generating porous body becomes appropriate, and the handleability becomes better.

  On the other hand, the hydrogen generation method of the present invention is characterized in that hydrogen is generated by bringing the hydrogen generating porous material according to any one of the above and the reaction solution into contact with each other. According to the hydrogen generation method of the present invention, it is possible to generate hydrogen appropriately by simply contacting a reaction solution with a hydrogen generating porous body having good handleability, and a sufficiently high reaction rate can be obtained.

  The porous body for hydrogen generation of the present invention contains a granular hydrogen generator and a resin. A hydrogen generator reacts with a reaction liquid such as water to generate hydrogen gas, and the present invention is particularly suitable for a highly reactive hydrogen generator from the viewpoint of improving the handleability of the hydrogen generator. It is valid.

  Examples of such highly reactive hydrogen generators include calcium hydride, lithium hydride, potassium hydride, sodium borohydride, potassium borohydride, lithium aluminum hydride, sodium aluminum hydride, or magnesium hydride. And those containing a metal hydride compound. All of these compounds are known to react rapidly or explosively with water to generate hydrogen gas, and all show reactivity with water higher than magnesium hydride.

  Moreover, you may contain metals, such as aluminum, iron, magnesium, and calcium, metal hydrogen complex compounds other than the above, as hydrogen generating agents other than the said compound. A plurality of metal hydride compounds, metals, and metal hydride complex compounds can be used in combination, or they can be used in combination. When a compound is used in combination, it is preferable to include a compound that facilitates the formation of pores by bubbles. As such a compound, calcium hydride is particularly preferable.

  The average particle size of the granular hydrogen generator is preferably 1 to 100 μm, more preferably 6 to 30 μm, and still more preferably 8 to 10 μm from the viewpoint of controlling dispersibility and reactivity in the porous body.

  The content of the hydrogen generating agent is preferably 10 to 60% by weight, and preferably 30 to 50% by weight in the porous body from the viewpoint of ensuring appropriate reactivity and a certain amount of hydrogen generation.

  Examples of the resin used include a thermosetting resin, a thermoplastic resin, and a heat resistant resin, and a thermosetting resin is preferable. Examples of the thermoplastic resin include polyethylene, polypropylene, polystyrene, acrylic resin, fluororesin, polyester, and polyamide. Examples of the heat resistant resin include aromatic polyimide, polyamide, and polyester.

  Examples of the thermosetting resin include epoxy resins, unsaturated polyester resins, phenol resins, amino resins, polyurethane resins, silicone resins, and thermosetting polyimide resins. Especially, an epoxy resin is preferable from a viewpoint which can maintain a porous structure moderately during hydrogen generating reaction.

  The content of the resin is preferably 30 to 90% by weight, more preferably 50 to 70% by weight in the porous body, from the viewpoint of securing an appropriate shape retention and a certain amount of hydrogen generation.

  The porous body for hydrogen generation of the present invention may contain other components such as a catalyst, a filler, and a foaming agent as optional components other than the above components. As the catalyst, an alkali compound such as sodium hydroxide, potassium hydroxide and calcium hydroxide is also effective in addition to the metal catalyst for the hydrogen generator.

  Examples of the foaming agent include a liquid that is phase-separated and dispersed in an uncured thermosetting resin and vaporizes at the reaction temperature of the thermosetting resin. It is also possible to add a small amount of a reaction solution that reacts with the hydrogen generator to generate hydrogen gas to the uncured thermosetting resin. Examples of such a reaction solution include water, an aqueous acid solution, and an alkaline aqueous solution.

  The porous body for hydrogen generation of the present invention has a structure made porous by bubbles (foaming), sintering, phase separation, or the like, but preferably has a structure made porous by bubbles. The bubbles for making the pores may be generated by a foaming agent, but are preferably hydrogen gas generated from a hydrogen generating agent.

  That is, the hydrogen generating porous body of the present invention is produced by the production method of the present invention, that is, after mixing a granular hydrogen generating agent and an uncured thermosetting resin, while generating hydrogen gas from the hydrogen generating agent. It is preferable to manufacture by the manufacturing method including the process of hardening a thermosetting resin.

The porous body for hydrogen generation of the present invention preferably has a density of 0.1 to 1.2 g / cm ³ , more preferably 0.2 to 0.9 g / cm ³ , and 0.3 to 0 More preferably, it is 0.5 g / cm ³ . By having a density in this range, the permeability of the reaction solution becomes appropriate, and the handleability becomes better. Such a density can be controlled by, for example, the amount of hydrogen gas generated.

  The bubble diameter of the hydrogen generating porous body is preferably 0.1 to 2 mm, more preferably 0.5 to 1 mm, from the viewpoint of appropriately controlling the permeability of the reaction solution. Such a bubble diameter can be controlled by, for example, the amount of hydrogen gas generated. In order to control the bubble diameter and density, the thermosetting resin may be cured under pressure.

  In the production method of the present invention, in order to generate hydrogen gas from the hydrogen generator, a method of adding a small amount of a reaction solution to an uncured thermosetting resin in advance, or a reaction contained in an uncured thermosetting resin Although a method using a liquid is also possible, a method in which hydrogen gas is desorbed from a hydrogen generating agent (in the case of a metal hydride compound) by heating for a curing reaction is preferable.

  The temperature at which hydrogen gas is desorbed from the hydrogen generator varies depending on the type of metal hydride compound, but is preferably 50 to 250 ° C, more preferably 80 to 200 ° C. That is, it is preferable to select a temperature within this range as the curing temperature of the uncured thermosetting resin. It is also possible to change the generation temperature of hydrogen gas and the curing temperature.

  The porous body for hydrogen generation obtained by curing has the property that the reactivity of the surface is lower than the reactivity of the fracture surface. For this reason, the reactivity of the porous body for hydrogen generation can be further increased by exposing the fractured surface by crushing, cutting, breaking, or the like. From such a point of view, it is preferable to further pulverize the cured product. When pulverizing, the particle size is preferably 1 to 20 mm, more preferably 3 to 10 mm.

  The hydrogen generation method of the present invention is to generate hydrogen by bringing the above-described porous body for hydrogen generation into contact with a reaction solution. Examples of the reaction solution include water, an aqueous acid solution, and an alkaline aqueous solution. The temperature of the reaction solution to be supplied may be room temperature, but may be heated to 30 to 80 ° C.

  In addition, the supply of the reaction liquid can be adjusted according to the amount of hydrogen gas to be generated. However, in the present invention, the reaction rate is controlled even if excessive supply is performed, so that the reaction rate is moderate. Hydrogen generation is possible at the generation rate.

  Therefore, in the hydrogen generation method of the present invention, hydrogen can be generated at an appropriate generation rate by immersing the hydrogen generating porous material in an excessive reaction solution. It is also possible to adjust the hydrogen generation rate by changing the amount of immersion in the reaction solution. In addition, it is also possible to adjust the hydrogen generation rate by covering a part of the surface of the hydrogen generating porous body with a non-permeable material of the reaction liquid.

  Since the hydrogen generating porous body of the present invention can simplify the structure of the hydrogen generating device, it is particularly effective when used in a hydrogen supply device of a fuel cell for a form device.

  Examples and the like specifically showing the configuration and effects of the present invention will be described below. In addition, the evaluation item in an Example etc. measured as follows.

(1) Average particle diameter From the photograph image | photographed using the scanning electron microscope (SEM), what has an average particle diameter was selected, and the long diameter and the short diameter were averaged and calculated | required.

(2) Density The mass of the sample was measured, and the density was determined by dividing the mass by the volume measured from the dimensions of each side.

Example 1
1 g of CaH ₂ (manufactured by Wako Pure Chemical Industries, Ltd., average particle size 10 μm) is added to 3 g of uncured one-pack type epoxy resin (manufactured by ThreeBond Co., Ltd., 2225G), stirred, and then dried by a dryer (120 ° C. setting). Dry-cured for minutes. The obtained cured product had a density of 0.32 g / cm ³ and was a porous body having a structure made porous by bubbles as shown in FIG. When this porous body was immersed in water at 20 ° C., hydrogen was generated.

As the hydrogen generation behavior, hydrogen generation started immediately after the porous body was immersed in water, and about 800 cc (73% of the theoretical hydrogen generation amount) of hydrogen was generated after about 3 hours. Further, 15 hours later, the total hydrogen generation amount reached about 1000 cc (theoretical value: CaH ₂ [1 g] → about 1100 cc).

Example 2
A porous body having a density of 0.51 g / cm ³ and having a porous structure with bubbles was obtained in the same manner as in Example 1 except that the content of the epoxy resin was changed to 1.5 g. The obtained porous body was immersed in water at 20 ° C., and the hydrogen generation flow rate was measured every minute by a water displacement method. The result is shown in FIG.

  As hydrogen generation behavior, hydrogen generation started immediately after the porous body was immersed in water, and about 970 cc (83% of the theoretical hydrogen generation amount) of hydrogen was generated after about 4.5 hours. Thereafter, hydrogen generation was completely stopped. The hydrogen generation flow rate is 10 cc / min immediately after the start of the experiment (about 2 minutes), and then is changed to 6 cc / min for about 90 minutes, and then converges while decreasing the flow rate as shown in FIG. It came.

Example 3
After adding 0.2 g of CaH ₂ (manufactured by Kemetal Co., average particle size 10 μm) to 3 g of uncured two-pack type epoxy resin (manufactured by Toto Chemical Co., Ltd., Beston 2 g + curing agent 1 g), a drier ( The film was dried and cured at 120 ° C. for about 20 minutes. The obtained cured product was a porous body having a density of 0.42 g / cm ³ and having a structure made porous by bubbles. When this porous body was immersed in water at 20 ° C., hydrogen was generated.

As hydrogen generation behavior, hydrogen generation started immediately after the porous body was immersed in water, and about 150 cc (65% of the theoretical hydrogen generation amount) of hydrogen was generated after about 3 hours. After 25 hours, the total hydrogen generation amount reached about 180 cc (theoretical value: CaH ₂ [0.2 g] → about 230 cc). It was found that the two-component resin (Example 3) has a sample structure that is more likely to collapse than the one-component resin (Example 1). That is, as the reaction progressed, a phenomenon in which the sample gradually became brittle was observed.

Example 4
Add 0.5 g of CaH ₂ (manufactured by Kemetal Co., average particle size 10 μm) to 3 g of uncured two-part polyester putty (Matsuzo Holt Co., Atsushi Keputate White) (main ingredient 2.8 g, hardener 0.2 g) After stirring, the mixture was dried and cured for about 20 minutes with a dryer (120 ° C. setting). The obtained cured product was a porous body having a density of 0.62 g / cm ³ and a structure made porous by bubbles. When this porous body was immersed in water at 20 ° C., hydrogen was generated.

As hydrogen generation behavior, hydrogen generation started immediately after the porous body was immersed in water, and about 450 cc (78% of the theoretical hydrogen generation amount) of hydrogen was generated when about 3 minutes passed. Thereafter, hydrogen generation stopped immediately (theoretical value: CaH ₂ [0.5 g] → about 580 cc). At that time, as the reaction progressed, a phenomenon in which the sample was subdivided (disintegrated) could be observed. The phenomenon that hydrogen generation was possible in nearly 80% of the total hydrogen generation amount in a short time was confirmed.

Example 5
After adding 0.5 g of LiH (manufactured by Wako Pure Chemical Industries Ltd., average particle size 10 μm) to 1 g of uncured one-pack type epoxy resin (manufactured by ThreeBond Co., 2225G), the mixture is stirred and then dried with a dryer (120 ° C. setting). Dry cured for 20 minutes. The obtained cured product was a porous body having a density of 0.32 g / cm ³ and a structure made porous by bubbles. When this porous body was immersed in water at 20 ° C., hydrogen was generated.

  As the hydrogen generation behavior, hydrogen generation started immediately after the porous body was immersed in water, and about 770 cc (51% of the theoretical hydrogen generation amount) of hydrogen was generated after about 5.5 hours. Thereafter, after 19 hours, the total hydrogen generation amount reached about 920 cc (61% of the theoretical hydrogen generation amount), and the reaction was completely stopped. LiH was also mixed with the epoxy resin, and a phenomenon of generating hydrogen was confirmed.

Example 6
0.5 g of CaH ₂ (manufactured by Kemetal Co., average particle size 10 μm) is added to 0.5 g of uncured one-part epoxy resin (manufactured by Three Bond Co., 2225G) and stirred, and then dried with a dryer (120 ° C. setting). Dry cured for about 20 minutes. The obtained cured product was a porous body having a density of 0.57 g / cm ³ and a structure made porous by bubbles. When this porous body was immersed in water at 20 ° C., the behavior of hydrogen generation was observed when the amount of water was changed (water amount 10 cc, water amount 50 cc, water amount 1000 cc). The surface temperature during the reaction was observed by thermography.

  As a result, there was no difference in the degree of hydrogen generation in each amount of water. Moreover, the difference in the surface temperature of the sample at the time of each reaction was not seen (35-40 degreeC grade). This confirmed that the reactivity of the sample did not depend on the amount of water other than necessary for the reaction. From this result, it was confirmed that the hydrogen generation flow rate can be easily controlled and the hydrogen generation can be easily turned on and off depending on the amount of water injected.

Example 7
0.5 g of uncured one-part epoxy resin (manufactured by ThreeBond, 2225G), 0.5 g of aluminum (manufactured by High Purity Chemical Laboratory Co., Ltd., average particle size 3 μm) and sodium hydroxide (manufactured by Wako Pure Chemical Industries, Ltd., average particle After adding 0.05 g (diameter 5.5 mm) and stirring, it was dried and cured for about 20 minutes in a dryer (120 ° C. setting). The obtained cured product was a porous body having a density of 0.48 g / cm ³ and having a structure made porous by bubbles. When this porous body was immersed in water at 20 ° C., hydrogen was generated. As the hydrogen generation behavior, hydrogen generation started immediately after the porous body was immersed in water, and about 210 cc (31% of the theoretical hydrogen generation amount) of hydrogen was generated after about 18 hours.

Example 8
After adding 0.52 g of sodium borohydride (Tokyo Kasei Kogyo Co., Ltd., average particle size 10 μm) to 1.1 g of an uncured one-part epoxy resin (manufactured by ThreeBond, 2225G) and stirring, a dryer (120 ° C. Set) for about 20 minutes. The obtained cured product had a density of 0.58 g / cm ³ and was a porous body having a structure made porous by bubbles. When this porous body was immersed in water at 20 ° C., hydrogen was generated. As hydrogen generation behavior, hydrogen generation started immediately after the porous body was immersed in water, and about 125 cc (9% of the theoretical hydrogen generation amount) of hydrogen was generated after about 18 hours.

Example 9
1 g of uncured one-part epoxy resin (manufactured by ThreeBond Co., Ltd., 2225G) 0.5 g LiH (manufactured by Wako Pure Chemical Industries, mean particle size 10 μm) and 0.05 g CaH ₂ (manufactured by Kemetal Co., mean particle size 10 μm) After adding and stirring, it was dried and cured for about 20 minutes in a dryer (120 ° C. setting). The obtained cured product was a porous body having a density of 0.57 g / cm ³ and a structure made porous by bubbles. When this porous body was immersed in water at 20 ° C., hydrogen was generated. As hydrogen generation behavior, hydrogen generation started immediately after the porous body was immersed in water, and about 1268 cc (76% of the theoretical hydrogen generation amount) of hydrogen was generated after about 15.5 hours.

Comparative Example 1
1 g of CaH ₂ (manufactured by Kemetal Co., average particle size 10 μm) is added to 3 g of high density polyethylene resin (Mitsubishi Chemical Co., Ltd., HY540) pulverized to a particle size of 0.1 mm, and the bottom area is 1 cm ² after stirring. Was used for 10 minutes under conditions of a temperature of about 140 ° C. and a pressure of 150 kg / cm ² to obtain a compression molded body. The obtained compression molded body was a non-porous body and had a structure in which no bubbles were present. When this compression molded body was immersed in water at 20 ° C., hydrogen was generated. As hydrogen generation behavior, hydrogen was generated immediately after the compression molded body was immersed in water, but the generation was stopped after 10 minutes, and the hydrogen generation amount was 154 cc (14% of the theoretical hydrogen generation amount).

Comparative Example 2
0.5 g of aluminum (manufactured by High-Purity Chemical Laboratory, average particle size 3 μm) is added to 0.5 g of uncured one-part epoxy resin (manufactured by ThreeBond Co., Ltd., 2225G), stirred, and then dried (120 ° C. setting). ) For about 20 minutes. The obtained cured product had a density of 1.18 g / cm ³ and had a structure without bubbles as shown in FIG. When this cured product was immersed in water at 20 ° C., hydrogen was not generated.

Comparative Example 3
3.5 g of polyethylene resin used in a commercially available garbage bag is subdivided and placed in a petri dish, heated to 150 to 200 ° C. with a hot plate and melted, 0.35 g of CaH ₂ (manufactured by Kemetal Co., average particle size 10 μm) Was added and mixed with stirring, and then cooled and solidified. The obtained solidified product had a structure with a density of 3 g / cm ³ and almost no bubbles. When this solidified product was immersed in water at 20 ° C., 30 cc of hydrogen was generated in the first 5 minutes (it is considered that the reaction occurred only on the surface), and then hydrogen generation of about 1 cc / min occurred for 15 minutes. Thereafter, about 15 cc of hydrogen was generated after 15 hours. Note that the hydrogen generation amount was only 16% of the theoretical hydrogen generation amount of CaH ₂ .

Test example 1
0.48 g of CaH ₂ (manufactured by Kemetal Co., average particle size 10 μm) is added to 0.48 g of uncured one-part epoxy resin (manufactured by ThreeBond Co., Ltd., 2225G), stirred, then transferred to an aluminum foil, covered, and from above A weight was placed and dried and cured for about 30 minutes in a dryer (120 ° C. setting). The aluminum foil was peeled off from the obtained cured product to obtain a cured product (thickness 4.5 mm). This cured product was a porous body having a density of 0.53 g / cm ³ and a structure made porous by bubbles.

In addition, 1.1 g of a cured product prepared in the same manner as above and pulverized to about 3 mm square and 0.5 g of raw material CaH ₂ powder were prepared. Using these, they were put in a polycarbonate resin container (volume 4.8 cm ³ ), and water was supplied so that the container was filled with water to generate hydrogen. The temperature of the outer surface of the container at that time was measured with a thermometer equipped with a thermocouple. The temperature change at that time is shown in FIG.

As a result, it was found that the pulverized product had a higher temperature when hydrogen was generated than the unpulverized product, and the reactivity increased. In the case of using a raw material CaH ₂ powder, the temperature is above 120 ° C., even control of the reaction difficult.

Test example 2
A cured product was produced under the same conditions as in Example 1 except that the CaH ₂ content was changed to 10% by weight. A scanning electron microscope (SEM) photograph of the fracture surface of the cured product is shown in FIG. As shown in this photograph, the porous body of the present invention has a structure that is made porous by bubbles, and has a partition between large bubble cells, and a small bubble cell is also formed in the partition. It was a structure. Further, it was found from another SEM photograph that the epoxy resin itself has a fine porous structure.

In addition, in order to examine the distribution of the material on the fracture surface of the cured product, an SEM image of the cured product was taken using an X-ray microanalyzer, and elemental analysis was performed on point C in the image. The result is shown in FIG. As a result, it was confirmed that CaH ₂ powder was embedded in the partition walls between the large bubble cells.

Digital camera photograph (left side) and optical micrograph (150 times, right side) of the cured product produced under the same conditions as in Example 1 (CaH ₂ content is 50% by weight) The graph which shows the time-dependent change of the generation | occurrence | production flow rate of the hydrogen gas in Example 2. Scanning electron microscope (SEM) photograph of a cured product produced under the same conditions as in Example 1 (CaH ₂ content is 10% by weight) (photo with only the magnification changed, lower magnification with higher magnification) The graph which shows the temperature change of the outer surface of the container in Test Example 1 Scanning electron microscope (SEM) photograph of a cured product produced under the same conditions as in Example 1 (CaH ₂ content is 10% by weight) and a graph showing the results of elemental analysis of the C point Digital camera photograph (left side) and optical micrograph (150 times, right side) of the cured product prepared in Comparative Example 2

Claims (6)

A porous body for hydrogen generation containing a mixture of a granular metal hydride compound and a thermosetting resin . The porous body for hydrogen generation according to claim 1 , wherein the porous body is made porous by bubbles. The porous body for hydrogen generation according to claim 1 or 2 , wherein the density is 0.1 to 1.2 g / cm ³ . A method for producing a porous body for hydrogen generation, comprising: mixing a granular metal hydride compound and an uncured thermosetting resin; and curing the thermosetting resin while generating hydrogen gas from the hydrogen generator. The method for producing a hydrogen generating porous body according to claim 4 , wherein the density of the resulting hydrogen generating porous body is 0.1 to 1.2 g / cm ³ . A hydrogen generation method for generating hydrogen by bringing the porous body for hydrogen generation according to any one of claims 1 to 3 and a reaction solution into contact with each other.

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