A kind of semi-solid metal-based hydrolysis hydrogen production material and preparation method

A semi-solid metal, hydrolysis hydrogen production technology, applied in the field of metal materials, can solve the problems of low hydrogen conversion rate, insufficient hydrogen production speed, affecting the development and application of metal hydrolysis hydrogen production technology, and achieve high yield and high production capacity.

Active Publication Date: 2020-11-20
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] After searching, it was found that the Chinese patent with the publication number CN108913957A disclosed a hydrolysis hydrogen production aluminum alloy and its preparation method and application. During the process, it is mainly hydrolyzed in an overall manner, and due to the coverage of the reaction by-products on the reaction interface and the thickening of the coating layer, it is easy to cause insufficient hydrogen production speed, and gradually decreases with the progress of hydrolysis, and the hydrogen conversion rate is low. Influenced the further development and application of metal hydrolysis hydrogen production technology

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  • A kind of semi-solid metal-based hydrolysis hydrogen production material and preparation method
  • A kind of semi-solid metal-based hydrolysis hydrogen production material and preparation method
  • A kind of semi-solid metal-based hydrolysis hydrogen production material and preparation method

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Embodiment 1

[0035] This embodiment provides a semi-solid metal-based hydrolysis hydrogen production material, the material is composed of components containing the following mass percentages: 83% of the metal matrix element, 17% of the active element, wherein the metal matrix element is aluminum, The active elements are metal elements Ga, In and Sn.

[0036] The above-mentioned semi-solid metal-based hydrolysis hydrogen production material can be prepared by the following method, and the specific steps are as follows:

[0037] Step 1): Metal matrix elements containing 83wt.% industrial pure aluminum and active elements Ga, In, Sn containing 17wt.% are melted and casted at 700°C to make alloy blanks.

[0038] Step 2): The alloy blank made in step 1) is subjected to semi-solid secondary remelting at 620°C to make slurry, and after cooling, an Al-15wt.%GaInSn semi-solid block hydrolysis hydrogen production material is obtained, and the material has a semi-solid Tissue, in the semi-solid tis...

Embodiment 2

[0043] This example provides a semi-solid metal-based hydrolysis hydrogen production material and its preparation method. Compared with Example 1, this example is different in that the metal matrix element is Mg25wt.%Al alloy, the melting temperature is 680°C, and the second The remelting temperature is 500°C.

[0044] Compared with Example 1, the amount of hydrogen produced is greatly reduced.

Embodiment 3

[0046] This embodiment provides a semi-solid metal-based hydrolysis hydrogen production material, the material is composed of components containing the following mass percentages: 99% of the metal matrix element, 1% of the active element, wherein the metal matrix element is aluminum, The active elements are metal elements Ga, In, Sn and Zn.

[0047] The above-mentioned semi-solid metal-based hydrolysis hydrogen production material can be prepared by the following method, and the specific steps are as follows:

[0048] Step 1): Metal matrix elements containing 99wt.% industrial pure aluminum and active elements Ga, In, Sn and Zn with a content of 1wt.% are melted and cast at 720°C to produce alloy blanks.

[0049] Step 2): The alloy blank prepared in step 1) is mechanically stirred at 650°C in the semi-solid temperature range for slurrying, and after cooling, an Al-1wt.% (GaInSnZn) semi-solid bulk hydrolysis hydrogen production material is obtained. The material has a semi-solid...

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Abstract

The invention provides a semi-solid metal-based hydrolysis hydrogen production material and a preparation method. The material has a semi-solid structure, and the semi-solid structure includes a spherical or near-spherical primary phase of metal matrix elements, and a secondary solidification structure containing an active element network , in which the spherical or nearly spherical primary phase of the metal matrix element is evenly dispersed in the secondary solidification structure containing the active element network; the metal matrix element and the active element are prefabricated into a billet, and then the billet is semi-solid pulped and cooled Afterwards, a semi-solid metal-based hydrolysis hydrogen production material is obtained. Compared with other conventional bulk materials with the same composition, the hydrogen production rate obtained by the invention is 20%-500% higher, and the yield is nearly 100%.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a semi-solid metal-based hydrolysis hydrogen production material and a preparation method. Background technique [0002] Hydrogen energy is considered to be the first choice to solve carbon emissions, but the lack of development in hydrogen production, hydrogen transportation, hydrogen storage and other aspects seriously restricts the utilization and development of hydrogen energy. Hydrogen production by metal hydrolysis is a promising method for obtaining hydrogen energy. It not only has high energy density, large reserves, easy acquisition, and low cost, but also the reaction product is environmentally friendly and recyclable. It is also regarded as a hydrogen storage, The integrated method of transportation and preparation: use active metals and water as carriers to realize the storage and transportation of hydrogen, and realize the generation and stop of hydrogen by controlling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C23/02C22C32/00C22C1/10C22C1/00C01B3/08
CPCC22C21/003C22C21/00C22C23/02C22C32/0036C22C32/0089C22C1/1036C01B3/08C22C1/1047C22C1/12Y02E60/36
Inventor 黄海军疏达汪东红祝国梁孙宝德
Owner SHANGHAI JIAOTONG UNIV
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