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Aluminum-salt-oxide material applicable to hydrogen production and preparation method thereof

A technology of oxides and chloride salts, applied in the production of hydrogen, etc., can solve the problems of slow reaction between aluminum and aluminum alloys and water, expensive alkali/alkaline earth metals, and strong corrosiveness of lye, etc., to achieve hydrogen production Low cost, low price, less corrosive effect

Inactive Publication Date: 2018-08-17
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this technology is that the alkali / alkaline earth metal is expensive and the reaction with water is not easy to control (such as the reaction between sodium and water); on the other hand, the lye is too corrosive, which limits its use in many places. And when the concentration of alkali solution is low, the reaction speed of aluminum and aluminum alloy and water is too slow

Method used

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  • Aluminum-salt-oxide material applicable to hydrogen production and preparation method thereof
  • Aluminum-salt-oxide material applicable to hydrogen production and preparation method thereof
  • Aluminum-salt-oxide material applicable to hydrogen production and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0039] Under argon protection, weigh 14g metal aluminum powder, 1gSrO, 6g BaCl 2 , 1g of tin, put it into a sealed agate ball mill jar and fill it with argon gas protection (the milling medium is also agate), the ball-to-material ratio is 10:1, and use a planetary ball mill for 24 hours at a speed of 300r / min. Take 1g of the particles obtained after ball milling figure 1In the reactor shown, open the water inlet valve and inject 10 ml of pure water at 25°C. At the same time, the temperature of the water in the reaction tank where the reaction part is located is also 25°C. Chamber collection to determine the amount of hydrogen gas produced. The pH value of the aqueous solution in the reaction chamber after the completion of the reaction (no bubble generation) is 7.88, indicating that the alkalinity of the solution after the reaction is very weak and the corrosion is small.

[0040] figure 2 It is the hydrogen production graph of the obtained material. It can be seen from th...

Embodiment 2

[0042] Under argon protection, weigh 9.6g metal aluminum powder, 1gSrO, 10.4g BaCl 2 , 1g of tin, put it into a sealed agate ball mill jar and fill it with argon gas protection (the milling medium is also agate), the ball-to-material ratio is 10:1, use a planetary ball mill for 24 hours, and the speed is 300r / min. Take 1g of the particles obtained after ball milling figure 1 In the reactor shown, open the water inlet valve and inject 10 ml of pure water at 25°C. At the same time, the temperature of the water in the reaction tank where the reaction part is located is also 25°C. Chamber collection to determine the amount of hydrogen gas produced. After the completion of the reaction, the pH value of the aqueous solution in the reaction chamber was 7.44, indicating that the solution after the reaction was very weakly alkaline and less corrosive.

[0043] image 3 It is the hydrogen production graph of the obtained material. It can be seen from the figure that gas is released w...

Embodiment 3

[0045] Under argon protection, weigh 6.3g metal aluminum powder, 1gSrO, 13.7g BaCl 2 , 1g of tin, put it into a sealed agate ball mill jar and fill it with argon gas protection (the milling medium is also agate), the ball-to-material ratio is 10:1, use a planetary ball mill for 24 hours, and the speed is 300r / min. Take 1g of the particles obtained after ball milling figure 1 In the reactor shown, open the water inlet valve and inject 10 ml of pure water at 25°C. At the same time, the temperature of the water in the reaction tank where the reaction part is located is also 25°C. Chamber collection to determine the amount of hydrogen gas produced. After the reaction is completed, the pH value of the aqueous solution in the reaction chamber is 7.32, indicating that the alkalinity of the solution after the reaction is very weak and the corrosion is small.

[0046] Figure 4 It is the hydrogen production graph of the obtained material. It can be seen from the figure that gas is r...

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Abstract

The invention relates to an aluminum-salt-oxide material applicable to hydrogen production and a preparation method thereof. By adopting different percentages by weight of aluminum, salt and oxide asmaterials or adding a small amount of cheap and low-melting-point metals, such as tin and lead, the aluminum / salt / oxide granular material is obtained by a mechanical ball-milling method. The materialcan react with water or aqueous solution under room temperature to rapidly produce hydrogen, and the yield of hydrogen can be regulated by changing the percentage of each component in the material. According to the invention, the material sources are wide, and prices are low; the preparation method is simple, and complex preparation processes, such as refining and smelting, are not needed; the cost of hydrogen production is low, and the hydrolytic property of the product is good; and after reaction, the solution is weak in alkalinity and low in corrosiveness.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production, and in particular relates to an aluminum-salt-oxide material suitable for hydrogen production and a preparation method thereof. Background technique [0002] Facing the increasingly severe energy situation and environmental protection pressure on a global scale, clean energy will become the basis for the sustainable development of human society. Hydrogen energy is a very good energy carrier, it does not emit any substances that pollute the environment, and it is a true green energy. However, the utilization of hydrogen energy is restricted by storage technology, transportation technology and hydrogen production technology, which has become a bottleneck in the development of hydrogen energy economy. In terms of hydrogen storage, gaseous hydrogen storage is bulky and has low energy density; liquid hydrogen storage requires ultra-low temperature or ultra-high pressure, otherwise safety ...

Claims

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Application Information

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IPC IPC(8): C01B3/08
CPCY02E60/36C01B3/08
Inventor 常鹰董仕节王辉虎魏志顺谌援何鹏浩黄慧诚
Owner HUBEI UNIV OF TECH