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Hydrolysis hydrogen-production aluminum alloy and preparation method thereof

A technology for producing hydrogen and aluminum alloys by hydrolysis, which is applied in the field of metal materials, can solve the problems of low hydrogen production rate and hydrogen production rate of alloys, difficulty in meeting the requirements of hydrogen fuel cell vehicles, etc., and achieve reduced consumption, low cost and simple process Effect

Active Publication Date: 2016-09-28
HUBEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Although there is a hydrogen production technology using aluminum alloy hydrolysis in the prior art, the hydrogen production rate and hydrogen production rate of the alloy are not high, and it is difficult to meet the requirements of hydrogen fuel cell vehicles.

Method used

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  • Hydrolysis hydrogen-production aluminum alloy and preparation method thereof

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[0018] The invention provides a method for preparing an aluminum alloy for hydrogen production by hydrolysis, which uses components including the following mass contents as raw materials: 60-95wt% of Al, 0.5-10wt% of Ga, 0.5-10wt% of In, 0.5-10wt% of Sr, Bi 2 o 3 1~10wt%, SnCl 2 1 to 10 wt%, ball milling to obtain the hydrolyzed hydrogen-producing aluminum alloy.

[0019] In the present invention, the raw material includes Al with a mass content of 60-95 wt%, preferably 70-93 wt%, more preferably 85-90 wt%. In the present invention, the purity of the Al is preferably not lower than 99%. In the present invention, the Al is preferably Al powder; the size of the Al powder is preferably 100-200 mesh, more preferably 140-160 mesh. In the present invention, the activated Al reacts with water to generate hydrogen.

[0020] In the present invention, the raw material includes Ga with a mass content of 0.5-10 wt%, preferably 1-8 wt%, more preferably 1.5-5 wt%. In the present inv...

Embodiment 1

[0033] With 90wt% 100 mesh purity of 99% or more Al powder, 4.5wt% of 99.9% or more liquid Ga, 2.5wt% of 100 mesh purity of 99.9% or more In powder, 1wt% of 100 mesh purity is 99.99% or more of Sr powder, 0.5 wt% of Bi with a particle size of 200 mesh and a purity of 99.9% or more 2 o 3 and 1.5wt% of SnCl with a particle size of 50 mesh and a purity of 99% or more 2 As the raw material, the raw material and the grinding balls are placed in the ball milling tank and sealed in a glove box filled with argon gas. The ball-to-material ratio is 20:1. Ball milling in a ball mill at a speed of 500 r / min for 24 hours to obtain hydrolyzed hydrogen-producing aluminum alloy powder with a particle size of 200 μm.

[0034] Mix the obtained aluminum alloy powder for hydrogen production by hydrolysis with water at 25°C for hydrolysis reaction, and test the hydrogen production performance by hydrolysis. The hydrolysis hydrogen production aluminum alloy powder reacts violently immediately af...

Embodiment 2

[0036] With 88.5wt% 150 mesh purity of 99% or more Al powder, 2.5wt% purity of 99.9% or more liquid Ga, 2wt% 150 mesh purity of 99.9% or more In powder, 1wt% 150 mesh purity of 99.99% or more of Sr powder, 1.5 wt% of Bi with a particle size of 300 mesh and a purity of 99.9% or more 2 o 3 and 4.5 wt% of SnCl with a particle size of 100 mesh and a purity of 99% or more 2 As the raw material, the raw material and the balls are placed in the ball mill pot and sealed in a glove box filled with argon gas. The ball-to-material ratio is 15:1. Ball milling in a ball mill at a speed of 400 r / min for 20 h to obtain hydrolyzed hydrogen-producing aluminum alloy powder with a particle size of 100 μm.

[0037] Mix the obtained aluminum alloy powder for hydrogen production by hydrolysis with water at 25°C for hydrolysis reaction, and test the hydrogen production performance by hydrolysis. The hydrolysis hydrogen production aluminum alloy powder reacts violently immediately after contacting...

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Abstract

The invention provides a hydrolysis hydrogen-production aluminum alloy and a preparation method thereof. The hydrolysis hydrogen-production aluminum alloy adopts a mechanical alloying method and takes the following components by weight percent as raw materials: 60-95wt% of Al, 0.5-10wt% of Ga, 0.5-10wt% of In, 0.5-10wt% of Sr, 1-10wt% of Bi2O3 and 1-10% of SnC12; and the hydrolysis hydrogen-production aluminum alloy with good hydrogen production performance is obtained by carrying out ball milling. Experimental results prove that the hydrolysis hydrogen-production aluminum alloy prepared by the preparation method provided by the invention is directly subjected to a reaction after being in contact with water at normal temperature and does not have reaction delay time, the hydrogen yield of the hydrolysis hydrogen-production aluminum alloy reaches 1220mL / g, and the hydrogen production rate of the hydrolysis hydrogen-production aluminum alloy reaches 98.1%, so that the aims of producing and supplying hydrogen in real time are achieved, and the hydrolysis hydrogen-production aluminum alloy is suitable for providing a high-purity hydrogen source for a hydrogen-oxygen fuel cell automobile. The preparation method provided by the invention is low in cost as well as simple and convenient in operation, thus being applicable to industrial production.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to an aluminum alloy for hydrogen production by hydrolysis and a preparation method thereof. Background technique [0002] Energy is the material basis of human activities, and the development of human society is inseparable from high-quality energy. However, due to the non-renewability of the fossil energy that humans rely on and the huge demand for it, the fossil energy is gradually exhausted, and the energy crisis is imminent. Hydrogen energy has the advantages of high energy, non-toxic, renewable, and good combustion performance, and is regarded as the clean energy with the most development potential in the 21st century. In order to further develop and utilize hydrogen energy and promote the development of "hydrogen economy", hydrogen energy technology has been included in the "Tenth Five-Year Plan for Science and Technology Development and 2015 Long-term Plan (Energy F...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C32/00B22F9/04C01B3/08
CPCY02E60/36C22C21/00B22F9/04B22F2009/041C01B3/08C22C32/00
Inventor 董仕节罗平官旭熊灿
Owner HUBEI UNIV OF TECH
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