A kind of aluminum alloy for hydrogen production by hydrolysis 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, and difficulty in meeting the requirements of hydrogen fuel cell vehicles, so as to improve the performance of hydrogen production by hydrolysis, increase stress, The effect of reducing dosage
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[0018] The invention provides a method for preparing aluminum alloy for hydrogen production by hydrolysis, which uses components including the following mass content as raw materials: 60-97wt% of Al, 0.5-10wt% of Ga, 0.5-10wt% of In, 0.5-10wt% of Sr, 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 60-97 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 2-5 wt%. In the present invention, the purity of Ga is...
Embodiment 1
[0032] 89wt% of 100-mesh Al powder with a purity of 99% or more, 2wt% of liquid Ga with a purity of 99.9% or more, 2wt% of 100-mesh In powder with a purity of 99.9% or more, and 3wt% of 100-mesh purity of 99.99% The above Sr powder, 4wt% 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 balls are placed in the ball mill pot and sealed in a glove box filled with argon gas. The ball-to-material ratio is 25:1. Ball milling in a ball mill at a speed of 550 r / min for 24 hours to obtain a hydrolyzed hydrogen-producing aluminum alloy powder with a particle size of 200 μm.
[0033] 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 with water, and the test results of hydrolysis hydrogen produc...
Embodiment 2
[0035] 86wt% 150-mesh Al powder with a purity of 99% or more, 2wt% liquid Ga with a purity of 99.9% or more, 3wt% 150-mesh In powder with a purity of 99.9% or more, 4wt% 150-mesh purity of 99.99% The above Sr powder, 5wt% 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 500 r / min for 20 hours to obtain hydrolyzed hydrogen-producing aluminum alloy powder with a particle size of 100 μm.
[0036] 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 with water, and the test results of hydrolysis hydrogen production performan...
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