Zrco-based hydrogen isotope storage alloy with high cycle stability and orthorhombic crystal structure and its preparation and application

A hydrogen isotope, stable performance technology, applied in the direction of hydrogen, non-metallic elements, chemical instruments and methods, etc., can solve the problems of low thermodynamic stability, slow crystal structure transformation, capacity decay, etc., to promote application and promotion, step by step Simple and safe effect

Active Publication Date: 2021-11-09
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But due to the mesophase ZrCoH 0.6 The thermodynamic stability of the battery is not high, and a slow crystal structure transformation will occur during the cycle, resulting in a heteromorphic hydrogen absorption and desorption process, resulting in slow disproportionation, resulting in continuous capacity decay

Method used

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  • Zrco-based hydrogen isotope storage alloy with high cycle stability and orthorhombic crystal structure and its preparation and application
  • Zrco-based hydrogen isotope storage alloy with high cycle stability and orthorhombic crystal structure and its preparation and application
  • Zrco-based hydrogen isotope storage alloy with high cycle stability and orthorhombic crystal structure and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Alloy chemical composition is Zr 0.9 Nb 0.1 co 0.8 Cu 0.2 , according to the chemical formula of the above-mentioned hydrogen isotope storage alloy, calculate the addition amount of Zr, Nb, Co, Cu elemental raw materials. Among them, the purity of the Zr, Nb, Co, and Cu elemental raw materials used are all above 99%. The above-mentioned raw materials are weighed according to the calculated addition amount after being cleaned and dried. Put the weighed raw materials in the water-cooled copper crucible of the magnetic levitation induction melting furnace. After evacuating to a vacuum of 0.9 Nb 0.1 co 0.8 Cu 0.2 Hydrogen isotope storage alloy ingot casting.

Embodiment 2

[0046] Alloy chemical composition is Zr 0.8 Nb 0.2 co 0.8 Cu 0.2 , according to the chemical formula of the above-mentioned hydrogen isotope storage alloy, calculate the addition amount of Zr, Nb, Co, Cu elemental raw materials. Among them, the purity of the Zr, Nb, Co, and Cu elemental raw materials used are all above 99%. The above-mentioned raw materials are weighed according to the calculated addition amount after being cleaned and dried. Put the weighed raw materials in the water-cooled copper crucible of the magnetic levitation induction melting furnace. After evacuating to a vacuum of 0.8 Nb 0.2 co 0.8 Cu 0.2 Hydrogen isotope storage alloy ingot casting.

Embodiment 3

[0048] Alloy chemical composition is Zr 0.7 Nb 0.3 co 0.8 Cu 0.2 , according to the chemical formula of the above-mentioned hydrogen isotope storage alloy, calculate the addition amount of Zr, Nb, Co, Cu elemental raw materials. Among them, the purity of the Zr, Nb, Co, and Cu elemental raw materials used are all above 99%. The above-mentioned raw materials are weighed according to the calculated addition amount after being cleaned and dried. Put the weighed raw materials in the water-cooled copper crucible of the magnetic levitation induction melting furnace. After evacuating to a vacuum of 0.7 Nb 0.3 co 0.8 Cu 0.2 Hydrogen isotope storage alloy ingot casting.

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Abstract

The present invention disclosed a ZRCO -based hydrogen -based alloy storage alloy with a high -cycle stable performance with orthogonal crystal structure. The chemical general is ZR 1‑x NB x CO 1‑y CU y H z Among them, 0 <x ≤ 0.5, 0 <y ≤ 0.5, 0.2 ≤Z ≤3; the orthogonal crystal structure is B33 phase.This alloy preparation method includes: preparation of ZR 1‑x NB x CO 1‑y CU y Alloy cast ingot, hydrogen absorption activation and crushing obtained hydrogen isotope storage alloy hydrogen powder powder, then put in a seal reactor, warmed up to 380 ° C, and have a B33 phase of hydrogen to the alloy to cool to room temperaturehave to.You can use this alloy orthogonal crystal B33 phase and orthogonal crystal saturated hydrogen -absorbing phase ZRCOH 3 The transformation of the same crystal transformation between the hydrogen is the storage, supply, and recycling of hydrogen isotope.

Description

technical field [0001] The invention relates to the technical field of hydrogen isotope storage and supply, in particular to a ZrCo-based hydrogen isotope storage alloy with orthorhombic crystal structure and high cycle stability, and its preparation and application. Background technique [0002] With the rapid development of social economy, the demand for energy is increasing, and the excessive development and use of traditional fossil energy has caused serious environmental pollution. Therefore, the development of clean, pollution-free and efficient renewable energy has become an urgent task today. . [0003] Fusion energy based on deuterium-tritium nuclear fusion reaction has the characteristics of large energy release, cleanness and high efficiency, and is considered to be one of the main ways for human beings to obtain energy in the future. The International Thermonuclear Experimental Reactor (ITER) built jointly by countries around the world realizes the release of fu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C16/00C22C30/02C22C30/00B22F9/02C01B3/00
CPCB22F9/023C01B3/0031C22C16/00C22C30/00C22C30/02C22C2202/04Y02E60/32
Inventor 陈立新梁赵青肖学章姚振东范修林
Owner ZHEJIANG UNIV
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