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Semi-solid metal-based hydrolysis hydrogen production material and preparation method thereof

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

Active Publication Date: 2019-12-20
SHANGHAI JIAO TONG 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

Method used

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  • Semi-solid metal-based hydrolysis hydrogen production material and preparation method thereof

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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 1wt.% active elements Ga, In, Sn and Zn are melted and cast at 720°C to make 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 structure, in which ...

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Abstract

The invention provides a semi-solid metal-based hydrolysis hydrogen production material and a preparation method thereof. The material has semi-solid tissue, the semi-solid tissue comprises sphericalor near-spherical primary phases containing metal matrix elements and meshy secondary solidified tissue containing active elements, wherein the spherical or near-spherical primary phases containing the metal matrix elements are uniformly dispersed in the meshy secondary solidified tissue containing the active elements; and the metal matrix elements and the active elements are prefabricated into ablank, the blank is subjected to semi-solid pulping, and then the semi-solid metal-based hydrolysis hydrogen production material is obtained after cooling. Compared with other existing tissue block materials with the same components, the metal-based block hydrolysis hydrogen production material prepared through the method has the advantages that the hydrogen production rate is 20%-500% higher thanprevious hydrogen production rate, 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 Applications(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 JIAO TONG UNIV
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