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A kind of hydrogen storage alloy with high hydrogen storage capacity and preparation method thereof

A hydrogen storage alloy and hydrogen storage technology, which is applied in the field of hydrogen storage alloy with high hydrogen storage capacity and its preparation, can solve the problems that the product performance cannot meet the needs of the market, the hydrogen storage capacity and activation performance of the alloy are limited, and achieve the goal of storage Effects of increased hydrogen content, high storage and release activity, and simple activation process

Active Publication Date: 2022-04-22
XTC HYDROGEN ENERGY SCI & TECH (XIAMEN) CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] However, the hydrogen storage capacity and activation performance of the above-mentioned alloys are limited, and the performance of the product cannot be guaranteed to meet the needs of the market.

Method used

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  • A kind of hydrogen storage alloy with high hydrogen storage capacity and preparation method thereof
  • A kind of hydrogen storage alloy with high hydrogen storage capacity and preparation method thereof
  • A kind of hydrogen storage alloy with high hydrogen storage capacity and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0047] Design composition is Ti 0.66 Zr 0.34 mn 0.86 Cr 0.77 Fe 0.18 , according to the weight percentage of the composition shown, the prepared raw materials are placed in a vacuum induction quenching furnace, vacuumized and then filled with argon for protection, and then induction heating is carried out. The melting temperature is 1500-1650 ° C. The raw materials are melted and formed After melting the liquid, keep it warm for 4-5 minutes, and then cast when the temperature of the material liquid reaches 1610±10°C, and obtain the cast material after cooling.

[0048] The as-cast material is kept at 960±5°C for 6.5 hours, and after cooling, it is made into alloy powder with a particle size of less than 35 mesh.

Embodiment 2

[0050] Design composition is Ti 0.70 Zr 0.30 mn 0.86 Cr 0.76 Fe 0.18 , except that the design components are different from embodiment 1, other are the same as embodiment 1.

Embodiment 3

[0052] Design composition is Ti 0.62 Zr 0.38 mn 0.88 Cr 0.79 Fe 0.19 , except that the design components are different from embodiment 1, other are the same as embodiment 1.

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Abstract

The invention relates to a hydrogen storage alloy with high hydrogen storage capacity and a preparation method thereof. The hydrogen storage alloy with high hydrogen storage capacity is AB 2 Type, the A side is composed of Ti and Zr elements, the B side is composed of Mn, Cr, Fe elements, and the general chemical formula is Ti a Zr 1‑a mn b Cr c Fe d , where, 0.55≤a≤0.78, 0.8≤b≤1.0, 0.7≤c≤0.85, 0≤d≤0.25, 1.7≤b+c+d≤2.0. The hydrogen storage alloy of the present invention has a high hydrogen storage capacity, and can reach a hydrogen storage capacity of 1.70wt% or more after being activated three times under the conditions of a temperature of 180°C and a hydrogen pressure of 1.25Mpa, and is used in the field of metal solid-state hydrogen storage. Better market prospects.

Description

technical field [0001] The invention relates to a hydrogen storage alloy, in particular to a hydrogen storage alloy with high hydrogen storage capacity and a preparation method thereof. Background technique [0002] Fossil energy such as oil, natural gas, and coal is the most important energy consumed in the world today. It is non-renewable and emits a large amount of greenhouse gas CO in the process of consumption. 2 , have a large impact on the global climate. With the depletion of fossil energy, the search for clean alternative energy has become the focus of global attention. Compared with solar energy, wind energy, water energy, and tidal energy, hydrogen energy has the advantages of easy access, no pollution, high energy efficiency, low cost, and no geographical restrictions. Therefore, the development and utilization of hydrogen energy has attracted widespread attention from all over the world. [0003] Hydrogen storage technology is the key to the efficient utilizat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/00C01B3/00C22C1/02
CPCC22C30/00C22C1/02C01B3/0031Y02E60/32Y02P20/133
Inventor 李瑾瑜林思杰林振甘毅祥李荣派徐晟库浩龙陈跃辉刘宏周林正钦潘富健
Owner XTC HYDROGEN ENERGY SCI & TECH (XIAMEN) CO
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