CN115074596B - Hydrogen reversible storage alloy material and preparation method thereof - Google Patents
Hydrogen reversible storage alloy material and preparation method thereof Download PDFInfo
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- CN115074596B CN115074596B CN202210741050.XA CN202210741050A CN115074596B CN 115074596 B CN115074596 B CN 115074596B CN 202210741050 A CN202210741050 A CN 202210741050A CN 115074596 B CN115074596 B CN 115074596B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/0005—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes
- C01B3/001—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes characterised by the uptaking medium; Treatment thereof
- C01B3/0031—Intermetallic compounds; Metal alloys; Treatment thereof
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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Abstract
The invention discloses a hydrogen reversible storage alloy material and a preparation method thereof, wherein the alloy material is prepared from Ti: v: cr: mn is added according to a molar ratio (0.9-1): (0-0.1): (0.5-0.7): (0.3-0.5): (1-1.1). The method of the invention is that Ti, zr, V and Cr are added into a smelting furnace to be smelted, and then Mn is added to be smelted into alloy material finally. The alloy of the invention has high hydrogen storage capacity and light weight, and greatly improves the problems of hydrogen release temperature/pressure/speed, hysteresis effect and the like. The method can obtain the set components, does not form impurities, reduces the volatilization of Mn element and improves the forming rate of the alloy.
Description
Technical Field
The invention relates to a hydrogen reversible storage alloy material and a preparation method thereof.
Background
When the existing alloy is smelted for hydrogen storage (solid hydrogen storage), all materials are smelted together, when the difference between the melting points and the boiling points of the materials is too large, the low boiling point and the high melting point are smelted together to form the alloy during smelting, so that the low boiling point material is vaporized, the components are difficult to accurately control, the components are much different from the original components to be smelted, the set components cannot be obtained, and impurities are easily formed, so that metal simple substances cannot be melted to form an integral alloy.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a novel hydrogen storage alloy having specific components and a method for preparing the alloy material, wherein the method employs a distributed melting method to accurately control the components of the alloy.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a hydrogen reversible storage alloy material is composed of Ti, zr: v: cr: mn in a molar ratio (0.9-1): (0-0.1): (0.5-0.7): (0.3-0.5): (1-1.1).
Preferably, ti: v: cr: the Mn molar ratio is 1:0.1:0.7:0.5:1.1.
preferably, ti: zr: v: cr: the Mn molar ratio is 0.9:0.1:0.5:0.3:1.
a preparation method of a hydrogen reversible storage alloy material comprises the following steps,
firstly, cleaning and drying raw materials of Ti, zr, V, cr and Mn, and then mixing the raw materials of Ti: v: cr: mn molar ratio (0.9-1): (0-0.1): (0.5-0.7): (0.3-0.5): (1-1.1) preparing raw materials;
secondly, adding Ti, zr, V and Cr into a smelting furnace, vacuumizing to less than 10-1 Pa, filling argon into the smelting furnace to 0.5bar, vacuumizing again, repeating for 3-5 times, filling argon to 1.02-1.04bar, gradually increasing the power of the smelting furnace to 20kw, ensuring that the smelting temperature reaches 2000 ℃, preserving heat for 1-2 minutes, gradually reducing the power, cooling and taking out;
and thirdly, adding the alloy smelted in the second step and Mn into a smelting furnace, vacuumizing the smelting furnace to be less than 10-1 Pa, filling argon into the smelting furnace to 0.5bar, vacuumizing the smelting furnace, repeating the vacuumizing for 3-5 times, then filling argon into the smelting furnace to be 1.02-1.04bar, gradually increasing the power of the smelting furnace to 20kw, ensuring that the smelting temperature reaches 1750 ℃, preserving the heat for 1-2 minutes, gradually reducing the power, cooling and taking out.
The invention has the beneficial effects that: the alloy of the invention has high hydrogen storage capacity and light weight, and greatly improves the problems of hydrogen release temperature/pressure/speed, hysteresis effect and the like. Wherein Ti and Zr are used as hydrogen absorption elements, and hydrogen has strong bonding; mn and Cr are used as regulating elements, and can reduce the bond energy of hydrogen bonds to help the release of hydrogen atoms; v can increase the available hydrogen capacity and delay hysteris. The method can obtain the set components, does not form impurities, reduces the volatilization of Mn element and improves the forming rate of the alloy.
Detailed Description
For a better understanding of the present invention, embodiments of the present invention are explained in detail below.
The hydrogen reversible storage alloy material of the invention is prepared from Ti, zr: v: cr: mn is added according to a molar ratio (0.9-1): (0-0.1): (0.5-0.7): (0.3-0.5): (1-1.1). When smelting, the Ti, zr, V and Cr are added into a smelting furnace for smelting, and then Mn is added to finally smelt into an alloy material.
As a first example of the alloy material of the invention:
and (3) Ti: v: cr: the Mn molar ratio is 1:0.1:0.7:0.5:1.1.
the preparation method comprises the following steps:
firstly, cleaning and drying raw materials of Ti, zr, V, cr and Mn, and then mixing the raw materials of Ti: v: cr: mn molar ratio of 1:0.1:0.7:0.5:1.1 preparing the raw material.
And secondly, adding Ti, zr, V and Cr into a smelting furnace, vacuumizing by 10-1 Pa (properly less than 10-1 Pa according to specific conditions), filling argon into the smelting furnace to 0.5bar, vacuumizing again, repeating for 3 times, then filling argon to 1.02bar, gradually increasing the power of the smelting furnace to 20kw, ensuring that the smelting temperature reaches 2000 ℃, preserving heat for 2 minutes, gradually reducing the power, cooling and taking out.
And thirdly, adding the alloy smelted in the second step and Mn into a smelting furnace, vacuumizing for 10-1 Pa (properly less than 10-1 Pa according to specific conditions), filling argon into the smelting furnace to 0.5bar, vacuumizing again, repeating for 3 times, then filling argon to 1.02bar, gradually increasing the power of the smelting furnace to 20kw, ensuring that the smelting temperature reaches 1750 ℃, preserving heat for 2 minutes, gradually reducing the power, cooling, and taking out to obtain the alloy material.
As a second example of the alloy material of the present invention:
and (3) Ti: v: cr: the Mn molar ratio is 0.9:0.1:0.5:0.3:1.
the preparation method comprises the following steps:
firstly, cleaning and drying raw materials of Ti, zr, V, cr and Mn, and then mixing the raw materials of Ti: v: cr: mn molar ratio 0.9:0.1:0.5:0.3:1 preparing the raw material.
And secondly, adding Ti, zr, V and Cr into a smelting furnace, vacuumizing for 10-1 Pa (properly less than 10-1 Pa according to specific conditions), filling argon into the smelting furnace to 0.5bar, vacuumizing again, repeating for 5 times, then filling argon for 1.04bar, gradually increasing the power of the smelting furnace to 20kw, ensuring that the smelting temperature reaches 2000 ℃, preserving heat for 1.5 minutes, gradually reducing the power, cooling and taking out.
And thirdly, adding the alloy smelted in the second step and Mn into a smelting furnace, vacuumizing by 10-1 Pa (properly less than 10-1 Pa according to specific conditions), filling argon into the smelting furnace to 0.5bar, vacuumizing again, repeating for 5 times, filling argon to 1.02bar, gradually increasing the power of the smelting furnace to 20kw, ensuring that the smelting temperature reaches 1750 ℃, preserving heat for 1.5 minutes, gradually reducing the power, cooling and taking out to obtain the alloy material.
Claims (1)
1. A preparation method of a hydrogen reversible storage alloy material is characterized by comprising the following steps,
firstly, cleaning and drying raw materials of Ti, zr, V, cr and Mn, and then mixing the raw materials of Ti: v: cr: mn molar ratio of 1:0.1:0.7:0.5:1.1 preparing raw materials;
secondly, adding Ti, zr, V and Cr into a smelting furnace, and vacuumizing<10 -1 Pa, filling argon into the smelting furnace to 0.5bar, vacuumizing, repeating for 3-5 times, then filling argon to 1.02-1.04bar, gradually increasing the power of the smelting furnace to 20kW, ensuring that the smelting temperature reaches 2000 ℃, preserving heat for 1-2 minutes, gradually reducing the power, cooling and taking out;
thirdly, adding the alloy smelted in the second step and Mn into a smelting furnace, and vacuumizing<10 -1 And Pa, filling argon into the smelting furnace to 0.5bar, vacuumizing, repeating for 3-5 times, filling argon to 1.02-1.04bar, gradually increasing the power of the smelting furnace to 20kW, ensuring that the smelting temperature reaches 1750 ℃, preserving heat for 1-2 minutes, gradually reducing the power, cooling and taking out.
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| CN115537690A (en) * | 2022-09-23 | 2022-12-30 | 海南天宇科技集团有限公司 | Reactivation method of deactivated alloy |
| CN115976392A (en) * | 2023-01-10 | 2023-04-18 | 海南天宇科技集团有限公司 | Hydrogen reversible storage alloy material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789455A (en) * | 2004-12-15 | 2006-06-21 | 北京有色金属研究总院 | Hydrogen compression material of metal hydride |
| CN101538673A (en) * | 2008-11-28 | 2009-09-23 | 复旦大学 | Under-measurement Laves phase hydrogen storage alloy and preparation method thereof |
| CN114427045A (en) * | 2021-12-10 | 2022-05-03 | 厚普清洁能源股份有限公司 | High-uniformity vanadium-titanium-based hydrogen storage alloy and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS61270362A (en) * | 1985-05-24 | 1986-11-29 | Matsushita Electric Ind Co Ltd | Manufacture of metallic alloy for hydrogen storage |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789455A (en) * | 2004-12-15 | 2006-06-21 | 北京有色金属研究总院 | Hydrogen compression material of metal hydride |
| CN101538673A (en) * | 2008-11-28 | 2009-09-23 | 复旦大学 | Under-measurement Laves phase hydrogen storage alloy and preparation method thereof |
| CN114427045A (en) * | 2021-12-10 | 2022-05-03 | 厚普清洁能源股份有限公司 | High-uniformity vanadium-titanium-based hydrogen storage alloy and preparation method thereof |
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