CN101186984A - High capacity hydrogen storage alloy material and its preparation process - Google Patents
High capacity hydrogen storage alloy material and its preparation process Download PDFInfo
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- CN101186984A CN101186984A CNA2007101143267A CN200710114326A CN101186984A CN 101186984 A CN101186984 A CN 101186984A CN A2007101143267 A CNA2007101143267 A CN A2007101143267A CN 200710114326 A CN200710114326 A CN 200710114326A CN 101186984 A CN101186984 A CN 101186984A
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Abstract
The invention provides an alloying material with high capacity of hydrogen and the preparation technique of the alloying material simultaneously. The chemical compositions of the alloying material with high capacity of hydrogen is Ti-(60%-x-y-z)Cr-xM-yN-zP, wherein M is one or some of Mo, Mn, Cu, Ni, W, N is Nb or Ta, P is one or some of V, Fe, Al, Cu, Ni, Zr, Zn and x, y, z are the percentages of mole mass, wherein 0<x<=20%, 0<=y<=5%, 0<z<=15%, 0<x+y+z<=30%. The preparation technique of the alloying material for storing hydrogen is that the mixed materials are melted repeatedly for 3-4 times under the protection of argon gas in the magnetic suspension and high-frequency induction furnace and then the cast alloy achieved after melting at a temperature of 900 DEG C-1450 DEG C anneals for 0-20h under the protection of the inert gas. The alloying material for storing hydrogen of the invention has the advantages of high capacity of hydrogen, with the largest capacity of 2.6wt%, easy activation under mild condition, with the high capacity of hydrogen evolution of 2.2wt% at 60DEG C.
Description
Technical field
The present invention relates to a kind of high capacity hydrogen storage alloy material and preparation technology thereof, belong to the hydrogen storage material technical field.
Background technology
Hydrogen storage alloy is a kind of hydrogen storage material with excellent hydrogen storage property, can well solve the accumulating problem of hydrogen energy source in application, is with a wide range of applications and market potential.But the hydrogen-storage amount of hydrogen storage alloy is on the low side at present, and general being difficult to surpasses 2.0wt%, though some alloy hydrogen-storage amount is higher relatively more expensive, has limited its practical application.
Summary of the invention
The present invention is directed to the low and high problem of cost of hydrogen-storage amount that existing alloy material storing hydrogen exists, a kind of high capacity hydrogen storage alloy material that has than high hydrogen storage and lower cost is provided, a kind of preparation technology of this material is provided simultaneously.
The chemical constitution of high capacity hydrogen storage alloy material involved in the present invention is Ti-(60%-x-y-z) Cr-xM-yN-zP, wherein, M is one or more among Mo, Mn, Cu, Ni, the W, N is Nb or Ta, and P is one or more among V, Fe, Al, Cu, Ni, Zr, the Zn, and x, y, z are molar mass percentage ratio, 0＜x≤20%, 0≤y≤5%, 0＜z≤15%, 0＜x+y+z≤30%.
Though all contain Cu, Ni among M and the P, M and P can not repeat to show as with a kind of material.When M and P showed as multiple element, the content of various elements was not necessarily identical, as long as sum meets the demands.
The present invention adds other certain metallic elements to carry out modification on the basis of Ti-Cr base alloy, form the solid solution alloy with BCC body-centered cubic phase structure, also contains a small amount of Laves phase simultaneously.The preparation technology of above-mentioned high capacity hydrogen storage alloy material may further comprise the steps:
(1) selects raw material and pre-treatment: select raw material by required each composition, and guarantee the raw material cleaning;
(2) batching and batch mixing: by the weight proportion batching and the batch mixing of required each composition;
(3) alloy smelting: melt back 3～4 times under argon shield in the magnetic levitation high frequency furnace, alloy is taken out in alloy and slag cooling back break;
(4) anneal under protection of inert gas: the cast alloy of gained is at 900～1450 ℃ and the 0～20h that anneals under protection of inert gas after the melting.
Hydrogen storage alloy of the present invention not only has high hydrogen storage capability, and is activated easily under mild conditions.Alloy material storing hydrogen maximum storage hydrogen quantity of the present invention reaches 2.6wt%, puts hydrogen up to 2.2wt% for 60 ℃, and cost is lower than 100 per kilograms, shows that this alloy is with a wide range of applications.The cost of material that adopts is cheap, the preparation equipment used is simple, method is easy to operate, energy consumption is low, is suitable for industrial scale production.
Embodiment
Embodiment 1
With Ti-38Cr-10Mn-2Ta-10V melt back 3～4 times under the argon shield of magnetic levitation high frequency furnace, the cast alloy of the gained 5h that under 1050 ℃ of protection of inert gas, anneals after the melting.The alloy material storing hydrogen that obtains has the maximum storage hydrogen quantity of 2.2wt%.
Embodiment 2
With Ti-35Cr-10Mo-5Nb-10 (V+Ni+Zr) melt back 3～4 times under the argon shield of magnetic levitation high frequency furnace, the cast alloy of the gained 10h that under 950 ℃ of protection of inert gas, anneals after the melting.The alloy material storing hydrogen that obtains has the maximum storage hydrogen quantity of 2.4wt%.
Embodiment 3
With Ti-30Cr-15 (Mn+Ni+W)-15 (V+Fe+Al+Zr)) melt back 3～4 times under the argon shield of magnetic levitation high frequency furnace, the cast alloy of the gained 15h that under 1100 ℃ of protection of inert gas, anneals after the melting.The alloy material storing hydrogen that obtains has the maximum storage hydrogen quantity of 2.3wt%.
Embodiment 4
With Ti-30Cr-20 (Mn+Ni)-5Ta-5 (V+Fe+Cu) melt back 3～4 times under the argon shield of magnetic levitation high frequency furnace, the cast alloy of the gained 10h that under 1250 ℃ of protection of inert gas, anneals after the melting.The alloy material storing hydrogen that obtains has the maximum storage hydrogen quantity of 2.4wt%.
Embodiment 5
With Ti-34Cr-6W-5Ta-15 (V+Zr+Al) melt back 3～4 times under the argon shield of magnetic levitation high frequency furnace, the cast alloy of the gained 20h that under 1350 ℃ of protection of inert gas, anneals after the melting.The alloy material storing hydrogen that obtains has the maximum storage hydrogen quantity of 2.4wt%.
Embodiment 6
With Ti-37Cr-8Cu-3Nb-12 (V+Zr) melt back 3～4 times under the argon shield of magnetic levitation high frequency furnace, the cast alloy of the gained 18h that under 1350 ℃ of protection of inert gas, anneals after the melting.The alloy material storing hydrogen that obtains has the maximum storage hydrogen quantity of 2.4wt%.
Embodiment 7
With Ti-30Cr-10 (Mo+Cu+Ni+W)-5Ta-15 (V+Al) melt back 3～4 times under the argon shield of magnetic levitation high frequency furnace, the cast alloy of the gained 20h that under 1350 ℃ of protection of inert gas, anneals after the melting.The alloy material storing hydrogen that obtains has the maximum storage hydrogen quantity of 2.6wt%.
Embodiment 8
With Ti-38Cr-9 (Cu+W)-3Nb-10 (V+Fe+Ni) melt back 3～4 times under the argon shield of magnetic levitation high frequency furnace, the cast alloy of the gained 16h that under 1300 ℃ of protection of inert gas, anneals after the melting.The alloy material storing hydrogen that obtains has the maximum storage hydrogen quantity of 2.5wt%.
Embodiment 9
With Ti-35Cr-5W-5Ta-15 (V+Cu) melt back 3～4 times under the argon shield of magnetic levitation high frequency furnace, the cast alloy of the gained 20h that under 1450 ℃ of protection of inert gas, anneals after the melting.The alloy material storing hydrogen that obtains has the maximum storage hydrogen quantity of 2.4wt%.
Claims (2)
1. high capacity hydrogen storage alloy material, it is characterized in that: the chemical constitution of this material is Ti-(60%-x-y-z) Cr-xM-yN-zP, wherein, M is one or more among Mo, Mn, Cu, Ni, the W, and N is Nb or Ta, P is one or more among V, Fe, Al, Cu, Ni, Zr, the Zn, x, y, z are molar mass percentage ratio, 0＜x≤20%, 0≤y≤5%, 0＜z≤15%, 0＜x+y+z≤30%.
2. the preparation technology of the described high capacity hydrogen storage alloy material of claim 1, the chemical constitution of this high capacity hydrogen storage alloy material is Ti-(60%-x-y-z) Cr-xM-yN-zP, wherein, M is one or more among Mo, Mn, Cu, Ni, the W, and N is Nb or Ta, P is one or more among V, Fe, Al, Cu, Ni, Zr, the Zn, x, y, z are molar mass percentage ratio, 0＜x≤20%, 0≤y≤5%, 0＜z≤15%, 0＜x+y+z≤30%; It is characterized in that: may further comprise the steps:
(1) selects raw material and pre-treatment: select raw material by required each composition, and guarantee the raw material cleaning;
(2) batching and batch mixing: by the weight proportion batching and the batch mixing of required each composition;
(3) alloy smelting: melt back 3～4 times under argon shield in the magnetic levitation high frequency furnace, alloy is taken out in alloy and slag cooling back break;
(4) anneal under protection of inert gas: the cast alloy of gained is at 900～1450 ℃ and the 0～20h that anneals under protection of inert gas after the melting.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101143267A CN101186984A (en) | 2007-11-15 | 2007-11-15 | High capacity hydrogen storage alloy material and its preparation process |
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| CNA2007101143267A CN101186984A (en) | 2007-11-15 | 2007-11-15 | High capacity hydrogen storage alloy material and its preparation process |
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| CN101186984A true CN101186984A (en) | 2008-05-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436665B (en) * | 2008-12-22 | 2010-08-11 | 浙江大学 | Amorphous state titanium- cuprum- nickel-base hydrogen-storing composite material |
| CN102832380A (en) * | 2012-08-29 | 2012-12-19 | 上海锦众信息科技有限公司 | Preparation method of cathode hydrogen storage material of power battery |
| CN105088011A (en) * | 2015-08-31 | 2015-11-25 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium-based dual-phase hydrogen storing alloy and preparation method thereof |
| CN106801177A (en) * | 2015-11-25 | 2017-06-06 | 北京有色金属研究总院 | A kind of V-Fe systems solid solution hydrogen bearing alloy and preparation method thereof |
| CN109609791A (en) * | 2018-12-27 | 2019-04-12 | 广东省稀有金属研究所 | A kind of static state hydrogen compressed complex phase hydrogen bearing alloy and the preparation method and application thereof |
| CN112899545A (en) * | 2021-01-18 | 2021-06-04 | 中国科学院金属研究所 | Nano precipitated phase reinforced body-centered cubic FexCrNiAl0.5Ti0.5High entropy alloy |
-
2007
- 2007-11-15 CN CNA2007101143267A patent/CN101186984A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436665B (en) * | 2008-12-22 | 2010-08-11 | 浙江大学 | Amorphous state titanium- cuprum- nickel-base hydrogen-storing composite material |
| CN102832380A (en) * | 2012-08-29 | 2012-12-19 | 上海锦众信息科技有限公司 | Preparation method of cathode hydrogen storage material of power battery |
| CN105088011A (en) * | 2015-08-31 | 2015-11-25 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium-based dual-phase hydrogen storing alloy and preparation method thereof |
| CN105088011B (en) * | 2015-08-31 | 2017-05-31 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium-based two-phase hydrogen-storage alloy and preparation method thereof |
| CN106801177A (en) * | 2015-11-25 | 2017-06-06 | 北京有色金属研究总院 | A kind of V-Fe systems solid solution hydrogen bearing alloy and preparation method thereof |
| CN109609791A (en) * | 2018-12-27 | 2019-04-12 | 广东省稀有金属研究所 | A kind of static state hydrogen compressed complex phase hydrogen bearing alloy and the preparation method and application thereof |
| CN112899545A (en) * | 2021-01-18 | 2021-06-04 | 中国科学院金属研究所 | Nano precipitated phase reinforced body-centered cubic FexCrNiAl0.5Ti0.5High entropy alloy |
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