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Al-Ga-In-Sn-Cu alloy for hydrogen production, preparation method of Al-Ga-In-Sn-Cu alloy and application to fuel cells

An al-ga-in-sn, fuel cell technology, applied in the field of aluminum alloy hydrogen production, can solve the problems of unsatisfactory hydrogen production performance, large demand for metal In, insufficient transportation and storage, etc., to reduce energy consumption, The effect of reducing production costs and saving costs

Active Publication Date: 2019-06-07
JILIN UNIV
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Problems solved by technology

[0007] After a large number of experiments, Professor Woodall of the United States found that the binary alloy formed by Al and Ga can react with water at room temperature to produce hydrogen, but its hydrogen production performance is not ideal; subsequent studies have shown that Al-Ga binary alloy The quaternary alloy prepared by doping In and Sn has very good hydrogen production performance due to the formation of the metal compound In3Sn, but due to the large demand for metal In, the cost is high
[0008] In addition, in order to further improve the hydrogen production performance of aluminum alloys, the current common method is to make aluminum alloys into powder products, but there are obvious deficiencies in transportation and storage.

Method used

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  • Al-Ga-In-Sn-Cu alloy for hydrogen production, preparation method of Al-Ga-In-Sn-Cu alloy and application to fuel cells

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Embodiment 1-4

[0035]Preparation of Al-Ga-In-Sn-Cu Alloy

[0036] (1) The alloy composition is shown in Table 1:

[0037] The alloy element composition mass percent (wt%) of table 1 embodiment 1-4

[0038]

[0039] (2) Preparation process:

[0040] The purity of the raw material is ≥99wt%, and the weighed metal is placed in a high-temperature furnace under the protection of nitrogen, sintered at 800°C, and kept at 800°C for one hour. Stir and cast after heat preservation, cool under natural conditions after casting, and pack after cooling. For its XRD and SEM characterization, see figure 1 with 3 .

[0041] (3) Hydrogen production index:

[0042] The alloys prepared in Examples 1-4 were reacted violently in water at 40° C. to generate a large amount of hydrogen, and the amount of hydrogen produced is shown in Table 2. The XRD characterization of the alloy residue after hydrogen production is shown in figure 2 .

[0043] Table 2 The amount of hydrogen produced by the aluminum all...

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Abstract

The invention discloses an Al-Ga-In-Sn-Cu alloy for hydrogen production, a preparation method of the Al-Ga-In-Sn-Cu alloy and application to fuel cells. According to the Al-Ga-In-Sn-Cu alloy for the hydrogen production, the preparation method of the Al-Ga-In-Sn-Cu alloy and the application in the fuel cells, doping of Cu is used for reducing the amount of precious metals Ga and In, and thus the production cost is lowered; furthermore, the normal growth of Al crystal particles is hindered by introducing the Cu, crystal boundaries are increased, the alloy is embrittled, pulverization of the alloy under hydrolysis reaction is facilitated, and the hydrogen generation performance of an Al-Ga-InSn4 alloy is obviously improved.

Description

technical field [0001] The invention relates to the field of hydrogen production from aluminum alloys, in particular to an Al-Ga-In-Sn-Cu alloy capable of rapidly reacting with water to release hydrogen, a preparation method thereof, and its application in fuel cells. Background technique [0002] Fossil energy is closely related to people's daily life and has played an irreplaceable role in the development of human society. Whether it is the gas used in people's daily life, or the electric energy and heat energy used in industrial production, most of them are provided by fossil energy. However, this kind of traditional energy is a one-off non-renewable energy, and its unsustainability and continuous huge human consumption have led to its output gradually shrinking. In addition, the massive consumption of fossil fuels has resulted in the emission of a large amount of greenhouse gases, causing the global temperature to rise and the sea level to rise, which intensifies the gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C21/12C22C1/02C01B3/08
CPCY02E60/36
Inventor 魏存弟高钱刘丹徐少南崔婷
Owner JILIN UNIV
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