JPH06256986A - Method for manufacturing hydrogen storage material - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Providing a method for producing hydrogen storage materials that dramatically increases the amount of deuterium or hydrogen stored, and the fusion of hydrogen isotopes within the hydrogen storage materials. The purpose is to achieve efficient production. [Structure] A solution 3 containing hydrogen ions and / or deuterium ions and containing palladium ions is used to apply a hydrogen generation voltage to the anode 1 and the cathode 2, thereby producing hydrogen and / or deuterium at the cathode 1. It is characterized in that palladium occluding is deposited.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a hydrogen storage material, and more particularly to a method for producing a (deuterated) hydrogen storage material effective for causing nuclear fusion of hydrogen isotopes.

[0002]

2. Description of the Related Art Heretofore, as a method for causing an exothermic reaction involving hydrogen in a solid at a temperature of 1000 ° C. or lower, an electrolysis method (for example, Japanese Patent Application No. 1-90311).
And a vacuum method (for example, Japanese Patent Application No. 1-232262).

In the electrolysis method, deuterium generated by electrolysis of heavy water (D ₂ O) is occluded in palladium (Pd) or titanium (Ti) to increase the concentration of deuterium in Pd or Ti to generate heat. The vacuum method is a method of occluding deuterium or hydrogen gas in Pd or Ti, and then applying a temperature gradient, a potential gradient, a pressure gradient, etc., to form an accumulated layer of deuterium or hydrogen stored therein. This is a method that causes heat generation. In either method, sufficient accumulation of deuterium or hydrogen is an important factor for efficient exothermic reaction.

[0004]

However, for example, in the electrolysis method, the accumulation of deuterium or hydrogen in the cathode is due to the diffusion of deuterium generated on the surface of the cathode into the inside of the cathode. There are problems that the diffusion rate is rate-determining, the amount of occlusion is small, the time required for occlusion is long, and the amount of heat generated is small. Also in the vacuum method, (deuterium) hydrogen is occluded in Pd, Ti, etc. by heating and cooling in a (deuterium) hydrogen atmosphere, but the accumulation of (heavy) hydrogen from the sample surface is the same as in the electrolysis method. Since only diffusion is used, there are problems that the rate of diffusion is rate-determining, the amount of occlusion is small, the time required for occlusion is long, the amount of heat generated is small, etc.

The present invention has been made in view of the above problems, and provides a hydrogen storage material in which the amount of deuterium or hydrogen accumulated is dramatically increased, and nuclear fusion of hydrogen isotopes in the hydrogen storage material is provided. The purpose is to realize to efficiently generate.

[0006]

In order to achieve the above object, the present invention applies a hydrogen generating voltage to an anode and a cathode using a solution containing hydrogen ions and / or deuterium ions or both and containing palladium ions. By doing so, palladium having hydrogen or deuterium or both stored therein is deposited on the cathode.

The present invention will be described in more detail.

The solution according to the present invention may be any as long as it contains hydrogen ions and / or deuterium ions and palladium ions. For example, a palladium chloride solution containing hydrogen ions or deuterium ions or both, and when the anode contains palladium, a diaminonitrite solution containing hydrogen ions or deuterium ions or both can be effectively used. .

The anode is not fundamentally limited in the present invention and may be, for example, an insoluble anode such as platinum or palladium.

The cathode is not basically limited, either.
Palladium, hydrogen storage alloy, etc. can be used.

Hydrogen or deuterium is generated at the cathode by applying a hydrogen generation voltage to both electrodes by using a solution containing hydrogen ions and / or deuterium ions or both and containing palladium ions and the above-mentioned anode and cathode. , Pd in a supersaturated state in which a large amount of hydrogen is stored is deposited. In order to efficiently store (deuterium) hydrogen in Pd, p for increasing the concentration of (heavy) hydrogen ion in the solution
Voltage is applied to both electrodes so that H is adjusted, the composition of the solution is adjusted, and (heavy) hydrogen generation is rich.

[0012]

In the method for producing a hydrogen storage material of the present invention, (deuterium) hydrogen ions are attracted to the cathode portion by the electric field, and a large amount of ions (ions), atoms or gases are present.
Since Pd is deposited at this cathode, (heavy) hydrogen is continuously taken in during the Pd deposition growth process, and it becomes possible to form hydrogen-storing Pd in a supersaturated state. By using the hydrogen storage material of the present invention thus prepared as a raw material for cold fusion, the probability of nuclear fusion of hydrogen isotopes in the hydrogen storage material is increased, and the conventional electrolysis method or vacuum method can be used. In comparison, it is possible to dramatically increase the reaction heat value.

[0013]

Embodiment 1 An embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, in the method of manufacturing a hydrogen storage material according to the first embodiment of the present invention, the anode 1 is made of platinum (P).
t), using Pd as the cathode 2 and using Pd chloride as the solution 3, specifically, in heavy water, palladium (I) chloride (3.7 g / l) and dibasic sodium phosphate (100 g / l).
1), diammonium phosphate (20 g / l) and benzoic acid (2.5 g / l) were added to the solution 3 to apply a DC voltage of 1 to 10 V between the negative and positive electrodes, ) Electrodeposition was carried out under the condition that hydrogen was actively generated. During the electrodeposition process, generation of (heavy) hydrogen was observed at the Pd cathode, and Pd was deposited at the cathode. Many fine cracks are seen on the surface of the deposited Pd, and it is understood that the deposited Pd occludes a large amount of (heavy) hydrogen and partially forms a hydride. The hydrogen storage material (1
(0 mm × 10 mm × 1 mm) was used to perform an exothermic reaction experiment. First, an oxide film was formed on one surface of the produced hydrogen storage material, and a gold thin film was formed on the other surface to seal the deuterium inside. After that, the sample was transferred to a vacuum container, and the sample was heated by an electric heater in a vacuum to give a temperature gradient.
The sample temperature exceeded 1000 ° C and the sample jig was deformed by heat. In addition, helium 4 was detected in the vacuum container simultaneously with the exothermic reaction. The calorific value was significantly increased as compared with the cases reported by the conventional electrolysis method and vacuum method.

[0015]

Embodiment 2 An embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 2, the method for producing a hydrogen storage material according to the second embodiment of the present invention uses Pd for the anode 11 and Pd for the cathode 12 and uses diaminonitrite as a solution. Diaminopalladium nitrite (4 g / l), ammonium nitrate (100 g / l),
A solution 13 to which sodium nitrite (10 g / l) was added was prepared, a direct current voltage of 1 to 10 V was applied between the negative and positive electrodes, and electrodeposition was performed under the condition that (deuterium) hydrogen was actively generated at the cathode. During the electrodeposition process, generation of (heavy) hydrogen was observed at the Pd cathode, and Pd was deposited at the cathode. Precipitated Pd
A large number of fine cracks were observed on the surface of Pd, and it can be seen that the precipitated Pd occludes a large amount of (heavy) hydrogen and partially forms a hydride. Example 1 using the hydrogen storage material (10 mm × 10 mm × 1 mm) thus produced
An exothermic reaction experiment was conducted in the same manner as in. As a result, Example 1
Similarly, a large amount of excess heat and helium 4 were detected, and the amount of generated heat was remarkably increased as compared with the cases reported by the conventional electrolysis method and vacuum method. The porous membranes 4 and 14 prevent mixing of gases generated at the cathode and the anode. In the figure, reference numerals 5 and 15 are tanks, 6 and 16 are power supplies, 7 and 1
Reference numeral 7 indicates wiring.

[0017]

As is apparent from the above description, according to the method for producing a hydrogen storage material of the present invention, since Pd is precipitated in a solution containing a large amount of (deuterium) hydrogen ions, Pd
In the precipitation growth process of d, (deuterium) hydrogen storage is performed and the (heavy) hydrogen storage Pd is efficiently formed. Therefore, compared to the conventional hydrogen storage method in which (heavy) hydrogen diffusion is performed only from the surface, it becomes possible to dramatically increase the storage amount and storage rate. Furthermore, when a cold fusion reaction is generated using the hydrogen storage material produced in this way, it contains a larger amount of (deuterium) than the conventional sample, so the calorific value per unit volume of the sample is increased. Can be higher.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an apparatus for carrying out Example 1 of the present invention.

FIG. 2 is a schematic diagram of an apparatus for carrying out Example 2 of the present invention.

[Explanation of symbols]

 1 Pt electrode (anode) 2 Pd electrode (cathode) 3 solution 4 porous film 5 tank 6 power supply 7 wiring 11 Pd electrode (anode) 12 Pd electrode (cathode) 13 solution 14 porous film 15 tank 16 power supply 17 wiring

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kazuhiko Takeno 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Tetsuo Take 1-16-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corp. (72) Inventor Masahisa Masahiro 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corp.

Claims (1)

[Claims] 1. A solution containing hydrogen ions and / or deuterium ions, and a solution containing palladium ions is used to apply a hydrogen generation voltage to the anode and the cathode to occlude hydrogen or deuterium or both into the cathode. A method for producing a hydrogen storage material, characterized by depositing palladium.