CN102732963A - Preparation method of monocrystalline metal nanowire array based on alumina template - Google Patents
Preparation method of monocrystalline metal nanowire array based on alumina template Download PDFInfo
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- CN102732963A CN102732963A CN2011100974289A CN201110097428A CN102732963A CN 102732963 A CN102732963 A CN 102732963A CN 2011100974289 A CN2011100974289 A CN 2011100974289A CN 201110097428 A CN201110097428 A CN 201110097428A CN 102732963 A CN102732963 A CN 102732963A
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Abstract
The invention relates to a preparation method of a high-sequential monocrystalline metal nanowire array. According to the invention, under induction of a magnetic field or non-magnetic field, a condition that a aluminum reduction electrode potential on the bottom layer of the alumina template is higher than aluminum metal salting liquid is used, and the monocrystalline metal nanowire array can be synthesized under a solvothermal condition at the temperature of low temperature (120-180 DEG C) when the induction of the magnetic field is induced. The method has the advantages of simple process and environmental protection. The monocrystalline metal nanowire array has the advantages of highly sequence, controllable diameter and period as well as good magnetic anisotropy; and the good magnetic anisotropy enables good application prospect of the nanometer array on the aspect of a magnetic storage medium material with high density.
Description
Technical field
The invention belongs to the nano material preparation technical field, particularly a kind of preparation method of metal nanometer line array of high-sequential.
Background technology
Introduce according to science (Science 2006, the 314th volume, 18685 pages), patterned magnetic media becomes the developing direction of new generation of high density magnetic storage medium.Patterned magnetic media (PMM) is to be formed by the orderly patterning magnetic cell of a plurality of independences ordered arrangement.All there is uniaxial anisotropy each unit, and its anisotropy easy-axis can parallel or vertical substrate, and the information digit of 1bit can be stored in each unit, DOM representative binary " 0,1 " state.Generally be particle alignment with magnetic on nonmagnetic bill of material, form periodic quantum array.Adopt the patterning recording medium that two big benefits are arranged: the one, owing to recorded bit is to have unitary physical location decision to be unlike in the thin film recording medium to be by two opposite each regional border decisions of magnetization, to have eliminated the transitional region noise like this; The 2nd, because the ultra paramagnetic limit is volume and anisotropy to whole unit; Rather than resemble the thin film recording medium volume and particulate volume and anisotropy to each crystal grain; So the size of each bit may diminish to several nanometers in PMM, its theoretical storage density can reach Tb/in
2Level.
Nanometer communication (Nano Letter.; 2003; The 3rd, 913 page) to have reported a kind of be the method for electrochemical deposition magnetic nanometer array on alumina formwork, but because the problem of electrochemical deposition process can't be prepared monocrystalline magnetic Nano linear array; And electrochemical deposition method is complicated, is not suitable for scale operation.
The patent of authorizing in China at present mainly comprises the preparation method (CN200410058085.5) of the induced by magnetic field growth magnetic one-dimensional nano line array of Tsing-Hua University; A kind of method (CN200410019998.6) that is equipped with nano material array system based on porous alumina formwork nanometer mask legal system of Institutes Of Technology Of Tianjin; Beijing Institute of Technology is through a kind of magneticmetal and alloy one dimension nanometer material preparation method (CN200410101397.X); Nanjing University's iron-Fe-Co alloy nanoline array as high-density magnetic perpendicualr recording material and preparation research pass through the superfine Fe 3 O 4 particle (CN200310103713.2) of Fe powder and trivalent iron salt prepared in reaction.
The method that more than prepares the magnetic Nano array all is based on the method for electrochemical deposition; But because the defective of electrochemical deposition itself, monocrystal nanowire can't perfectly prepare, and electrochemical deposition method itself is relatively stricter to the requirement of parameter; The technology more complicated, cost is high.Therefore need a kind of method to overcome deficiency of the prior art, the metal nano array of high-sequential is provided.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of metal nanometer line array of high-sequential; This method is grown in alumina formwork as reactant through the metal-salt that use is easy to get; Preparation is by the nano-array with tangible magneticanisotropy of metal nanometer line assembling, thus under relatively low temperature the monocrystal nano line array of scale operation high-sequential, aperture homogeneous.
Therefore,, the invention provides a kind of preparing method's (after this abbreviating " method of the present invention " as) of single-crystal metal nano-wire array, comprise the following steps: aspect first
1) barrier layer of removal alumina formwork;
2) use the aluminium substrate that metal saline solution inert barrier material is blocked the alumina formwork of the removal barrier layer that obtains in the step 1);
3) with step 2) in the said barrier material of usefulness that the obtains alumina formwork that blocks aluminium substrate put into the metal saline solution that reaction kettle is immersed in said alumina formwork; Sealing also is warming up to more than 100 ℃, and insulation is no less than 10 hours under 100 ℃ the temperature being higher than;
Wherein said metal is the metal of metal reactivity after aluminium or the alloy of any two or more formation in them, and said metal saline solution is the lyotropic salt of corresponding metal or alloy.
Method of the present invention can carried out under the condition in no magnetic field or under the low-intensity magnetic field condition.
Aspect second; The invention provides single-crystal metal nano-wire array through method preparation of the present invention; Said metal is the metal of metal reactivity after aluminium or the alloy of any two or more formation in them, is preferably selected from iron, cobalt, platinum, nickel, zinc, gold and silver and copper or their any two or more alloys.
The present invention's advantage compared with prior art is:
(1) anodic oxidation aluminium formwork (AAO of the monocrystal nanowire through the present invention preparation; Anodic Aluminum Oxide Template) aperture is adjustable in the 40nm-80nm scope; Cycle is adjustable at 60nm-120nm; And can guarantee the magneticanisotropy of nano-array, be convenient to use as the high-density magnetic storage medium.
(2) the present invention can obtain the nano-array of the high-sequential of the controlled monocrystal nanowire assembling in diameter footpath owing to be employed in the aluminium reducing of the oxidized aluminum alloy pattern plate bottom of metal under the solvent thermal condition under 120-180 ℃ lesser temps under low-intensity magnetic field.
(3) cheap metal-salt of utilization of the present invention and alumina formwork be as raw material, and as conversion unit, technology is simple with autoclave and magnet, and solution is capable of circulation to be suitable for green industrialized production and use; It is high at raw materials cost to have overcome existing method, severe reaction conditions, and complex process can't obtain the defective of aspects such as monocrystal nano line array.
(4) the present invention as reductive agent, without additional reducing agent or apply electric current and can prepare metal simple-substance, oxide compound and the alloy that the metal reactivity is weaker than aluminium, has extensive applicability with residual aluminum.
Description of drawings
Fig. 1 is the field emission scanning electron microscope figure of the product of embodiment 1 preparation.
Fig. 2 is the X-ray diffractogram of the product of embodiment 2 preparations.
Fig. 3 is the transmission electron microscope electron-diffraction diagram of the product of embodiment 2 preparations, and wherein A is a large amount of nano wire images, and B is single nano-wire and image K-M thereof.
Fig. 4 is the product transmission electron microscope picture and the high resolution picture of preparation among the embodiment 2.
Fig. 5 is the field emission scanning electron microscope figure of embodiment 2 products, and wherein A is positive image, and B is a side image.
Fig. 6 is the magnetic hysteresis loop of product chamber under temperature of embodiment 2 preparations.
Fig. 7 is the X-ray diffractogram of the product of embodiment 3 preparations.
Fig. 8 is the field emission scanning electron microscope figure of the product of embodiment 3 preparations.
Fig. 9 is the X-ray diffractogram of the product of embodiment 4 preparations.
Figure 10 is the field emission scanning electron microscope figure of the product of embodiment 4 preparations.
Figure 11 is the X-ray diffractogram of the product of embodiment 5 preparations.
Figure 12 is the field emission scanning electron microscope figure of the product of embodiment 5 preparations.
Figure 13 is the X-ray diffractogram of the product of embodiment 6 preparations.
Figure 14 is the field emission scanning electron microscope figure of the product of embodiment 6 preparations.
Figure 15 is the field emission scanning electron microscope figure of the product of embodiment 7 preparations.
Embodiment
Definition:
" barrier layer ": in the preparation of nano-array, the aluminum oxide lamina membranacea can be divided into three layers: the porous layer of pellumina, the barrier layer of pellumina and fine aluminium substrate.They are inwardly arranged by corrosion surface successively, and the porous layer of its outer surface and the internal layer barrier layer that joins with it constitute multiaperture pellumina.The porous layer of pellumina is to be cellular, contains highdensity nano level hole, and barrier layer is fine and close no hole layer.
" lyotropic salt ": the solubleness in water is greater than 10mol/L.
" magneticmetal ": iron, cobalt, platinum, nickel etc. and their alloy with magnetic, in addition in the present invention, when mentioning " metal ", only if specifically indicate, this term is all made a general reference " metal and alloy thereof ".
" wet chemistry method ": have method that liquid phase is participated in, that be equipped with material through the chemical reaction metric system to be referred to as wet chemistry method.
" magneticstrength ": be a sign amount of coil a.t., a little less than the source strength in reflection magnetic field.The magnetic induction density B on set point and the merchant of magnetic constant and specific magnetising moment M's is poor.In a vacuum, be the merchant of magnetic induction density B and magnetic constant, its unit representes with T.
" high-sequential ": it is generally acknowledged and use the AAO template to be high-sequential, so use AAO template preparation also be high-sequential.
" monocrystalline ": promptly the inner particulate of xln is regularly at three-dimensional space, periodically arranges, and crystalline integral body is made up of the same space grid on three-dimensional in other words, and particle is arranged as long-range order at spatial in the whole crystal.The whole lattice of monocrystalline is a successive.
" ndfeb magnet ": ndfeb magnet, magnet a kind of has the advantages that volume is little, in light weight and magnetic is strong, is the best magnet of the ratio of performance to price up to now.
" magneticanisotropy ": magneticanisotropy is meant the phenomenon that the magnetic of material becomes with direction.The susceptibility and the ferromagnetic magnetzation curve that mainly show as weak magnet become with DOM.Ferromagnetic magneticanisotropy is particularly outstanding, is one of ferromagnetic basic magnetic, representes that saturated (or spontaneous) magnetization free energy density when the different crystal direction is different.Magneticanisotropy derives from the anisotropy of magnetocrystalline.Mainly be measured as the magnetic hysteresis loop of different directions.The electronic integraptor method is to measure the method for magnetic induction density through the electronic integraptor integration according to the induced potential that electromagnetic induction principle records search coil; Usually produce stabilizing magnetic field with direct current, through quantitative increase or reduce magnetizing current and change magnetic field, the point-to-point measurement magnetic hysteresis loop is called static hysteresis loop.
The present invention adopts wet chemistry method that a kind of preparation method of metal nanometer line array of high-sequential is provided; The metal-salt that this method utilization is easy to get is grown in alumina formwork as reactant, and preparation is by the nano-array with tangible magneticanisotropy of metal nanometer line assembling.The method for preparing the single-crystal metal nano-wire array of the present invention
Method of the present invention comprises the following steps:
1) barrier layer of removal alumina formwork;
2) use the aluminium substrate that metal saline solution inert barrier material is blocked the alumina formwork of the removal barrier layer that obtains in the step 1);
3) with step 2) in the said barrier material of usefulness that the obtains alumina formwork that blocks aluminium substrate put into the metal saline solution that reaction kettle is immersed in said alumina formwork; Sealing also is warming up to more than 100 ℃, and insulation is no less than 10 hours under 100 ℃ the temperature being higher than;
The electropotential of wherein said metal is higher than aluminium, the metal of preferable alloy reactivity after aluminium or the alloy of any two or more formation in them, and said metal saline solution is the lyotropic salt of corresponding metal or metal alloy.
In the method for the invention, the method for the barrier layer of removal alumina formwork is unrestricted, can use method known to those skilled in the art to carry out.
In the method for the invention, can be selected from tetrafluoroethylene, silicon-dioxide, glass, at least a in the cement etc. to metal saline solution inert barrier material.Because reaction kettle generally processed by tetrafluoroethylene, so the barrier material preferably polytetrafluoroethylene, and tetrafluoroethylene also relatively is beneficial to and is processed into threadedly, is easy to dismounting.Amount at the saline solution of metal described in the reaction kettle can be selected according to the size of employed alumina formwork, and its consumption is to be enough to the employed alumina formwork of submergence degree of being.For example, for 5cm
2Alumina formwork need the metal saline solution of 50ml.
Method of the present invention can prepare the nano-wire array of the metal or metal alloy of metal reactivity after aluminium; The electropotential of said metal or metal alloy is higher than aluminium; Chosen from Fe, cobalt, platinum, nickel, zinc, gold and silver and copper or their two or more alloy arbitrarily preferably; For example, cobalt-platinum alloy, nickel cobalt (alloy), electrum etc.
The metal saline solution that in the step 3) of method of the present invention, uses is that said lyotropic salt is nitrate salt, carbonate, vitriol, phosphoric acid salt, muriate etc. corresponding to the aqueous solution of the lyotropic salt of above-mentioned metal, preferred muriate.
Method of the present invention can carried out under the condition in no magnetic field or under the low-intensity magnetic field condition; When under no magnetic field condition, carrying out; Step 2) temperature in is higher than 100 ℃; Preferred 100-200 ℃ can be the scope between 120 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 170 ℃, 180 ℃, 190 ℃, 200 ℃ or wherein any two values particularly.And when under low-intensity magnetic field, carrying out, the temperature of insulation is preferably 120-180 ℃, can be the scope between 120 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 170 ℃, 180 ℃ or wherein any two values particularly, preferred 150 ℃.Said low-intensity magnetic field is 0.1T-0.5T, preferred 0.25T.Magnetic field in our (data not shown) 0.1-0.5T scope of discovering is smaller to the influence of product; Magnetic field just induces magnetic particle to align in reaction; The size influence of absolute magnetic field is little, therefore can in above-mentioned scope, select magneticstrength arbitrarily.
Said low-intensity magnetic field can apply through several different methods, for example, can outside said reaction kettle, apply through magnet, or low-intensity magnetic field also can produce by ndfeb magnet, and this ndfeb magnet is placed on outside the polytetrafluoroethylliner liner of said reaction kettle, in the stainless steel casing.Also can use other magnet such as SmCo magnet, still from the angle of cost, preferred ndfeb magnet is because its low price.
In a preferred embodiment of method of the present invention, said being sealed in the reaction kettle of being processed by polytetrafluoroethylliner liner and stainless steel casing carried out.
In the preferred embodiment of method of the present invention, the time of insulation is no less than 10 hours, and preferred 10～48 hours, more preferably 12～24 hours.
Further set forth the inventive method in detail with concrete embodiment below.It being understood that following embodiment only is used to explain the present invention, is not intended to limit scope of the present invention.In addition, except that specified otherwise, raw material involved in the present invention and reagent city are sold and can be got.
The preparation that embodiment 1. removes the alumina formwork of barrier layer
Aluminium foil with 99.999% with the acetone ultrasonic cleaning after, wash repeatedly to remove surface and oil contaminant with acetone, deionized water, alcohol successively, dry up with nitrogen; 500 ℃ of vacuum annealings 10 hours, naturally cool to room temperature then.Aluminium foil after the annealing is made anode, the common aluminium foil negative electrode of doing, the mixing solutions of absolute ethyl alcohol and perchloric acid that with volume ratio is 9: 1 adopts 12V voltage to polish 5 minutes as electrolytic solution.Make anode with polished aluminium foil after cleaning finishes, graphite is made negative electrode, and at 40V voltage, electrolysis is 24 hours under 8 ℃ of constant temperature as electrolytic solution for the oxalic acid of 0.3mol/L.Aluminium foil behind the once oxidation is soaked 6 hours down to remove the once oxidation layer with the mixing solutions of 6wt% phosphoric acid and 1.8wt% chromic acid at 60 ℃.And then adopt the condition identical to carry out secondary oxidation with once oxidation, but the secondary oxidation time be merely 4h, progressively reduce voltage up to-5V with per 10 minutes 5V then.The alumina formwork that electrolysis is good is put into vacuum drying oven and is preserved after the supersound washing in absolute ethyl alcohol.Fig. 1 is the field emission scanning electron microscope figure of the alumina formwork for preparing.
The preparation of embodiment 2. nickel nano-arrays
Get the 1g nickelous chloride, be dissolved in by in the 40mL deionized water, after stirring; Solution is transferred in the autoclave that capacity is 50ml; Put into the alumina formwork that shelters from aluminum portions with tetrafluoroethylene, heated sealed to 120 ℃, insulation is 24 hours under the effect in 0.25T magnetic field; Be cooled to room temperature then, promptly obtain product; Go absolute ethyl alcohol to clean repeatedly then, to remove nano-array surface impurity and pollutent; Then this product is placed in 40 ℃ of vacuum chambers and preserve.
As shown in Figure 2; (18KW changes the target X-ray diffractometer with the clean product X XRD X of dissolution of sodium hydroxide after scouring according to the present embodiment product; Model: MXPAHF, production firm:
figure Japanese agate jade-like stone company), all diffraction peak positions correspond respectively to (111) of nickel; (200); (220), face, the demonstration product is a nickel; Through transmission electron microscope electron diffraction instrument (model: JEOL-2010, production firm: Jeol Ltd.) form images (Fig. 3), can find out that from Fig. 3 B the present embodiment product is a monocrystalline; Transmission electron microscope picture and high resolution picture (Fig. 4) show that this product is along 110 length of looking unfamiliar.Field emission scanning electron microscope (model: H-7650, production firm: Hitachi, Ltd) imaging (Fig. 5) shows the structure of this product high-sequential, and nanowire diameter is 60nm, and the cycle is 100nm; Through (model: MPMS XL-7, production firm: the magnetic hysteresis loop (Fig. 6) of assay products U.S. Quantum Design company) can draw this product and have tangible magneticanisotropy with accurate SQUID magnetics measuring system.
The preparation of embodiment 3. silver medal nano-arrays
Get the 0.068g Silver Nitrate and be dissolved in, after stirring is all used, solution is transferred in the autoclave that capacity is 50ml by in the 40mL deionized water; Put into the alumina formwork that shelters from aluminum portions with tetrafluoroethylene, heated sealed to 120 ℃ is incubated 12 hours; Be cooled to room temperature then, promptly obtain product; Go absolute ethyl alcohol to clean repeatedly then, to remove nano-array surface impurity and pollutent; Then this product is placed in 40 ℃ of vacuum chambers and preserve.As shown in Figure 7; With the clean product X XRD X of dissolution of sodium hydroxide after scouring
figure, all diffraction peak positions correspond respectively to (111) of silver, (200) according to the present embodiment product; (220); (311), (222) face shows that product is a silver; (model: Sirion200, production firm: FEI Co.) imaging (Fig. 8) shows the structure of this product high-sequential to field emission scanning electron microscope, and nanowire diameter is 40nm.Cycle is 100nm.
The preparation of embodiment 4. cobalt-platinum alloy nano-arrays
Getting 0.714g NSC 51149 and 0.006225g potassium chloroplatinite is dissolved in by in the 40mL deionized water; After stirring is all used, solution is transferred in the autoclave that capacity is 50ml, put into the alumina formwork that shelters from aluminum portions with tetrafluoroethylene; Heated sealed to 180 ℃; Insulation is 12 hours under the effect in 0.25T magnetic field, is cooled to room temperature then, promptly obtains product; Go absolute ethyl alcohol to clean repeatedly then, to remove nano-array surface impurity and pollutent; 850 ℃ of annealing 2 hours, this product is placed in 40 ℃ of vacuum chambers preserve at last then.
As shown in Figure 9; Scheme with the clean product X XRD X of dissolution of sodium hydroxide after scouring
according to the present embodiment product; All diffraction peak positions correspond respectively to cobalt-platinum alloy [(001), (110), (111); (200); (201), (220)] face, the demonstration product is a cobalt-platinum alloy; Field emission scanning electron microscope picture (Figure 10) shows the structure of this product high-sequential, and nanowire diameter is 60nm.Cycle is 100nm.
The preparation of embodiment 5. bronze medal nano-arrays
Get the 0.2g cupric chloride and be dissolved in, after stirring is all used, solution is transferred in the autoclave that capacity is 50ml by in the 40mL deionized water; Put into the alumina formwork that shelters from aluminum portions with tetrafluoroethylene, heated sealed to 120 ℃ is incubated 12 hours; Be cooled to room temperature then, promptly obtain product; Go absolute ethyl alcohol to clean repeatedly then, to remove nano-array surface impurity and pollutent; Then this product is placed in 40 ℃ of vacuum chambers and preserve.Shown in figure 11; Scheme with the clean product X XRD X of dissolution of sodium hydroxide after scouring
according to the present embodiment product; All diffraction peak positions correspond respectively to (111) of copper, (200), (220); Face, the demonstration product is a copper; Field emission scanning electron microscope picture (Figure 12) shows the structure of this product high-sequential, and nanowire diameter is 80nm.Cycle is 100nm.
The preparation of embodiment 6. nickel-cobalt alloy nano arrays
Getting 1 NSC 51149 and 1g nickelous chloride is dissolved in by in the 40mL deionized water; After stirring is all used, solution is transferred in the autoclave that capacity is 50ml, put into the alumina formwork that shelters from aluminum portions with tetrafluoroethylene; Heated sealed to 170 ℃; Insulation is 12 hours under the effect in 0.25T magnetic field, is cooled to room temperature then, promptly obtains product; Go absolute ethyl alcohol to clean repeatedly then, to remove nano-array surface impurity and pollutent; Then this product is placed in 40 ℃ of vacuum chambers and preserve.
Shown in figure 13; Scheme with the clean product X XRD X of dissolution of sodium hydroxide after scouring
according to the present embodiment product; All diffraction peak positions correspond respectively to (111) of nickel cobalt (alloy); (200), (220) face, the demonstration product is a nickel cobalt (alloy); Field emission scanning electron microscope picture (Figure 14) shows the structure of this product high-sequential, and nanowire diameter is 60nm.Cycle is 100nm.
The preparation of embodiment 7. electrum nano-arrays
Getting 0.05mmol Silver Nitrate and 0.05mmol hydrochloro-auric acid is dissolved in by in the 40mL deionized water; After stirring is all used, solution is transferred in the autoclave that capacity is 50ml, put into the alumina formwork that shelters from aluminum portions with tetrafluoroethylene; Heated sealed to 140 ℃; Be incubated 12 hours, be cooled to room temperature then, promptly obtain product; Go absolute ethyl alcohol to clean repeatedly then, to remove nano-array surface impurity and pollutent; Then this product is placed in 40 ℃ of vacuum chambers and preserve.Field emission scanning electron microscope picture (Figure 15) shows the structure of this product high-sequential, and nanowire diameter is 60nm.Cycle is 100nm.
Claims (9)
1. the preparation method of a single-crystal metal nano-wire array comprises the following steps:
1) barrier layer of removal alumina formwork;
2) use the aluminium substrate that metal saline solution inert barrier material is blocked the alumina formwork of the removal barrier layer that obtains in the step 1);
3) with step 2) in the said barrier material of usefulness that the obtains alumina formwork that blocks aluminium substrate put into the metal saline solution that reaction kettle is immersed in said alumina formwork; Sealing also is warming up to more than 100 ℃, and insulation is no less than 10 hours under 100 ℃ the temperature being higher than;
Wherein said metal is the metal of metal reactivity after aluminium or the alloy of any two or more formation in them, and said metal saline solution is the lyotropic salt corresponding to said metal or alloy.
2. according to the method for claim 1, it is characterized in that: said method is carried out under the condition in no magnetic field.
3. according to the method for claim 1, be characterised in that: said method is carried out under 120～180 ℃ under the low-intensity magnetic field condition of preferred 0.25T at 0.1T-0.5T.
4. according to each described method among the claim 1-3, it is characterized in that: said being sealed in the reaction kettle of being processed by polytetrafluoroethylliner liner and stainless steel casing carried out.
5. according to each described method among the claim 1-4; It is characterized in that: the alloy of said metal chosen from Fe, cobalt, platinum, nickel, zinc, gold and silver and copper or any two or more formation in them, the preferred cobalt-platinum alloy of said alloy, nickel cobalt (alloy), electrum.
6. according to each described method among the claim 1-5, it is characterized in that: said barrier material is selected from tetrafluoroethylene, silicon-dioxide, glass, any in the cement, preferably polytetrafluoroethylene.
7. method according to claim 4 is characterized in that: said low-intensity magnetic field is produced by ndfeb magnet, and this ndfeb magnet is placed on outside the polytetrafluoroethylliner liner of said reaction kettle, in the stainless steel casing.
8. single-crystal metal nano-wire array, it is being prepared from according to each described method among the claim 1-7, and said metal is the metal of metal reactivity after aluminium or the alloy of any two or more formation in them.
9. single-crystal metal nano-wire array according to claim 8 is characterized in that said metal chosen from Fe, cobalt, platinum, nickel, zinc, gold and silver and copper or they two or more alloy arbitrarily, the preferred cobalt-platinum alloy of said alloy, nickel cobalt (alloy), electrum.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103614745A (en) * | 2013-12-05 | 2014-03-05 | 天津大学 | Method for preparing FeMn nanowires by utilizing secondary anodic alumina template |
| CN111996560A (en) * | 2020-07-10 | 2020-11-27 | 深圳先进技术研究院 | Metal wire preparation method, metal wire and clamp |
| CN115275107A (en) * | 2022-09-28 | 2022-11-01 | 四川启睿克科技有限公司 | Silicon-based negative electrode with integrated structure and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529330A (en) * | 2003-09-29 | 2004-09-15 | 南京大学 | Iron-cobalt alloy nano linear array permanent-magnetic film material and its preparation |
| CN101393092A (en) * | 2008-09-28 | 2009-03-25 | 合肥工业大学 | Method for making scanning electron microscope example for assembling nanometer line array in aluminum oxide template |
| CN101498050A (en) * | 2009-01-16 | 2009-08-05 | 北京航空航天大学 | Preparation of nickel zinc alloy nano-wire array material |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529330A (en) * | 2003-09-29 | 2004-09-15 | 南京大学 | Iron-cobalt alloy nano linear array permanent-magnetic film material and its preparation |
| CN101393092A (en) * | 2008-09-28 | 2009-03-25 | 合肥工业大学 | Method for making scanning electron microscope example for assembling nanometer line array in aluminum oxide template |
| CN101498050A (en) * | 2009-01-16 | 2009-08-05 | 北京航空航天大学 | Preparation of nickel zinc alloy nano-wire array material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614745A (en) * | 2013-12-05 | 2014-03-05 | 天津大学 | Method for preparing FeMn nanowires by utilizing secondary anodic alumina template |
| CN111996560A (en) * | 2020-07-10 | 2020-11-27 | 深圳先进技术研究院 | Metal wire preparation method, metal wire and clamp |
| CN115275107A (en) * | 2022-09-28 | 2022-11-01 | 四川启睿克科技有限公司 | Silicon-based negative electrode with integrated structure and preparation method thereof |
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