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Mg-TM super-multilayer composite hydrogen storage film and preparation method thereof

A composite film and super multi-layer technology, which is applied in the direction of coating, superimposed layer plating, metal material coating process, etc., can solve the problem of slow hydrogen absorption/desorption rate of hydrogen storage composite film and complex preparation process of hydrogen storage composite film , high dehydrogenation temperature and other problems, achieve fast absorption/dehydrogenation rate, lower dehydrogenation temperature, and simple preparation process

Inactive Publication Date: 2018-06-12
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a Mg-TM super multi Preparation method of laminated hydrogen storage thin film

Method used

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  • Mg-TM super-multilayer composite hydrogen storage film and preparation method thereof
  • Mg-TM super-multilayer composite hydrogen storage film and preparation method thereof
  • Mg-TM super-multilayer composite hydrogen storage film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] The preparation of Mg-Ni super multilayer composite hydrogen storage film specifically comprises the following steps:

[0042] (1) Clean the substrate with deionized water first, and then clean it with absolute ethanol. After cleaning, put it in a domestic DHG-9055A blast drying oven to dry; after the substrate pretreatment is completed, fix the substrate on On the substrate of the domestic JGP560-B6 ultra-high vacuum magnetron sputtering system, adjust the distance between the substrate and the center of the substrate so that the substrate can be aligned with the Mg and Ni targets respectively;

[0043] (2) Use the domestic RVP-4 rotary vane vacuum pump to pump the vacuum degree of the sputtering chamber of the ultra-high vacuum magnetron sputtering system to 8.0×10 -4 Pa, the argon gas with a purity of 99.99% is introduced and the sputtering working pressure of 0.8 Pa is achieved with the flow controller;

[0044] (3) Start sputtering after the sputtering working pre...

Embodiment 2

[0049] The preparation of the Mg-Ti super multilayer composite hydrogen storage film specifically includes the following steps:

[0050] (1) Clean the substrate with deionized water first, and then clean it with absolute ethanol. After cleaning, put it in a domestic DHG-9055A blast drying oven to dry; after the substrate pretreatment is completed, fix the substrate on On the substrate of the domestic JGP560-B6 ultra-high vacuum magnetron sputtering system, adjust the distance between the substrate and the center of the substrate so that the substrate can be aligned with the Mg and Ti targets respectively;

[0051] (2) Use the domestic FD-IIB molecular pump to pump the vacuum degree of the sputtering chamber of the ultra-high vacuum magnetron sputtering system to 8.0×10 -4 Pa, the argon gas with a purity of 99.99% is introduced and the sputtering working pressure is reached to 0.8Pa with the flow controller;

[0052] (3) Start sputtering after the working pressure of sputterin...

Embodiment 3

[0058] The preparation of the Mg-Ti super multilayer composite hydrogen storage film specifically includes the following steps:

[0059] (1) Clean the substrate with deionized water first, and then clean it with absolute ethanol. After cleaning, put it in a domestic DHG-9055A blast drying oven to dry; after the substrate pretreatment is completed, fix the substrate on On the substrate of the domestic JGP560-B6 ultra-high vacuum magnetron sputtering system, adjust the distance between the substrate and the center of the substrate so that the substrate can be aligned with the Mg and Ti targets respectively;

[0060] (2) Use the domestic RVP-4 rotary vane vacuum pump to pump the vacuum degree of the sputtering chamber of the ultra-high vacuum magnetron sputtering system to 8.0×10 -4 Pa, the argon gas with a purity of 99.99% is introduced and the sputtering working pressure is reached to 0.8Pa with the flow controller;

[0061] (3) Start sputtering after the working pressure of s...

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Abstract

The invention discloses a Mg-TM super-multilayer composite hydrogen storage film and a preparation method thereof. The Mg-TM super-multilayer composite hydrogen storage film is a Mg-TM composite filmwhich is formed by alternating deposition of Mg and TM atom layers, a Pd sealing cover layer is arranged on the external surface of the Mg-TM composite film, and TM is a transition group metallic element Ti, Ni or Nb. The Mg-TM super-multilayer composite hydrogen storage film is prepared by a semi-co-sputtering technique of a low-cost ultrahigh vacuum magnetron sputtering system. A preparation technology is simple, the cost is low, the repeatability is good, and the high-quality Mg-TM super-multilayer composite hydrogen storage film having obvious Mg preferred orientation is prepared; the prepared Mg-TM super-multilayer composite hydrogen storage film has lower hydrogen absorption / dehydrogenation temperature and higher hydrogen absorption / dehydrogenation speed; the hydrogen absorption quantity in 500s achieves 3.4wt%, with the temperature being 423 K and the hydrogen pressure being 1.15 MPa; and the hydrogen absorption quantity in 600s achieves 2.1wt% with the temperature being 423 K.

Description

technical field [0001] The invention belongs to the technical field of metal functional film materials, and in particular relates to a Mg-TM super multilayer composite hydrogen storage film and a preparation method thereof. Background technique [0002] Materials that can reversibly absorb / desorb hydrogen at a certain temperature and pressure are called hydrogen storage materials. Fossil energy is non-renewable energy, and because fossil energy brings serious environmental problems, there is an urgent need for new renewable clean energy to replace fossil energy. As a new type of clean energy, hydrogen energy has an energy density as high as 142MJ / Kg, which is three times the heat of gasoline combustion, and the only by-product is water. The technology related to hydrogen production is relatively mature, and in order to make hydrogen energy practically utilized, the key is storage. At present, the relevant research reports are mainly solid hydrogen storage materials, such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/14
CPCC23C14/352C23C14/14C23C28/023
Inventor 刘江文张锦国符译元王辉欧阳柳章曾美琴朱敏
Owner SOUTH CHINA UNIV OF TECH
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