Preparation method of hydrolysis hydrogen production alloy

Abstract

The invention discloses a preparation method of a hydrolysis hydrogen production alloy, which comprises the following steps: selecting metal aluminum or magnesium with the purity of more than or equal to 99.8% and low-melting-point metal which is bismuth, tin, gallium or indium; the preparation method comprises the following steps: firstly, melting low-melting-point metal into an alloy, then putting the alloy and aluminum or magnesium into a graphite crucible in advance, heating and stirring to prepare a uniform alloy melt, fully stirring, quickly cooling and dispersing by using high-pressure inert gas to prepare alloy powder, and finally pressing the alloy powder into a compact blocky alloy by using a die casting machine to prepare the hydrolytic hydrogen production alloy. The preparation method of the hydrolysis hydrogen production alloy is simple, industrial production is easy, the high initial and process hydrogen production rate is guaranteed, the extremely high hydrogen production yield is guaranteed, meanwhile, the utilization rate of materials is remarkably increased, the action effect is stable, waste of the hydrogen production alloy is avoided, and the method is suitable for industrial production. The hydrolysis hydrogen production alloy can be widely applied to products depending on the field hydrogen production technology, such as a portable hydrogen energy power supply, hydrogen power equipment, a hydrogen absorption machine, a hydrogen beauty instrument and the like.

Description

technical field [0001] The invention relates to the technical field of hydrogen-producing alloy materials, in particular to a preparation method of a hydrogen-producing alloy by hydrolysis. Background technique [0002] New energy, information and new materials are the three pillar industries of modern society and the basis for the rapid development of modern civilization. With the continuous growth of population and economy, accelerated depletion of fossil energy, and increasingly serious environmental pollution, human beings have to seek new energy to drive future life. It has become a hot topic to explore sustainable green energy and environment-friendly energy technology to meet the growing needs of the world. Research topics and technical challenges. Considering factors such as transportation convenience, functional diversity, quickness of use, safety and reliability, and environmental compatibility, hydrogen energy is an ideal energy source and is expected to become a...

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Problems solved by technology

[0008] Magnesium (Mg) is particularly attractive for hydrogen generation in neutral solutions because its advantages include high theoretical hydrogen generation capacity, high electrochemical activity, and light weight. To improve the performance of magnesium-based alloys for hydrogen production, people often add active Metal elements regulate the activity of magnesium-based alloys or refine the alloy structure through high-energy ball milling to increase the specific surface area to improve its hydrogen production kinetics. The above methods often increase the cost of the alloy, and the alloy powder obtained by ball milling brings storage and safety issues. In addition, the surface of the alloy is easy to form a passivation layer such as magnesium oxide (MgO), which reduces the surface activity of the alloy, inhibits the surface adsorption and mass transfer of hydrogen, and makes the initial rate of hydrogen production very slow. In addition, the magnesium alloy is hydrolyzed at the same time Form Mg(OH) 2 Colloidal product, the product is wrapped layer by layer, which inhibits the entry of subsequent media, so that the alloy cannot be completely hydrolyzed to produce hydrogen, and the final yield is low. In view of the above two reasons, the development of fast and high-yield bulk aluminum-based or magnesium-based hydrogen-producing alloys is the focus of future research, therefore, we propose a method for the preparation of hydrogen-producing alloys by hydrolysis

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