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Zirconium, vanadium and iron modified chrome titanium base hydrogen storage alloy and preparing method thereof

A technology of hydrogen storage alloy and vanadium ferroalloy, which is applied in chemical instruments and methods, fuel cells, electrochemical generators, etc., can solve the problems of difficulty in price and practicality.

Inactive Publication Date: 2006-08-23
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It's hard to be practical at such a high price

Method used

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  • Zirconium, vanadium and iron modified chrome titanium base hydrogen storage alloy and preparing method thereof
  • Zirconium, vanadium and iron modified chrome titanium base hydrogen storage alloy and preparing method thereof

Examples

Experimental program
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Embodiment 1

[0023] The design group is Ti 0.9 Zr 0.1 Cr 0.96 V 0.79 Fe 0.11 Weigh the corresponding elements of each element and melt them four times under the protection of argon atmosphere to obtain an alloy with uniform composition, and then perform rapid quenching in a rapid quenching furnace with a line speed of 20m / s. The rapidly quenched alloy was crushed, sieved with 80 mesh and 200 mesh, and tested by PCT and XRD respectively. XRD test results see figure 2, The PCT results at 0°C are shown in Figure 3. The hydrogen absorption of the alloy exceeds 2.4wt%.

Embodiment 2

[0025] The design group is Ti 0.8 Zr 0.2 Cr 1.19 V 0.57 Fe 0.08 Weigh the corresponding elements of the alloy, melt it four times under the protection of argon atmosphere to obtain an alloy with uniform composition, and then perform rapid quenching in a rapid quenching furnace with a line speed of 20m / s. The rapidly quenched alloy was crushed, sieved with 80 mesh and 200 mesh, and subjected to PCT test. The PCT results at 0°C are shown in Figure 4.

Embodiment 3

[0027] The design group is Ti 0.6 Zr 0.4 Cr 1.66 V 0.21 Fe 0.03 Weigh the corresponding elements of the alloy, melt it four times under the protection of argon atmosphere to obtain an alloy with uniform composition, and then perform rapid quenching in a rapid quenching furnace with a line speed of 20m / s. The rapidly quenched alloy was crushed, sieved with 80 mesh and 200 mesh, and subjected to PCT test. The PCT results at 0°C are shown in Figure 5.

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Abstract

Zr-V-Fe modified Ti-Cr based hydrogen storing alloy and its preparation are disclosed. In this novel alloy, Zr replaces Ti in the alloy partially, and V and Fe replace Cr in the alloy partially. The modified Ti-Cr alloy consists of Ti(1-x)Zr(x)Cr(m-n-p)V(n)Fe(p), wherein, 0.05 is less than or equal to x is less than or equal to 0.6; 1.75 is less than or equal to m is less than or equal to 2.1; 02.0 wt%, even up to 2.4 wt% and can be used in fuel cells as hydrogen storing alloy on large scale.

Description

technical field [0001] The invention relates to a titanium-chromium-based hydrogen storage alloy simultaneously modified by three elements of zirconium, vanadium and iron and a preparation method thereof. More precisely, the present invention passes in TiCr X Adding Zr, V, and Fe three modifying elements to the alloy increases the hydrogen storage capacity of the alloy, so that this type of material can be used as a hydrogen storage material for a large-scale hydrogen source, and belongs to the field of hydrogen storage alloys. Background technique [0002] With the aggravation of oil, coal and other traditional energy crises and the development of hydrogen-fueled electric vehicles and other machines that can use hydrogen as an alternative fuel, hydrogen is getting more and more attention from human beings. Japan's economy in the 21st century Called the hydrogen economy. In the process of developing various new uses of hydrogen, the storage method of hydrogen has received ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C27/06C22C14/00B01J20/02H01M8/22
CPCY02E60/50
Inventor 黄太仲吴铸陈金舟冯尚龙余学斌夏保佳徐乃欣
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI