CN102921940A - Iron nano belt and preparation method thereof - Google Patents
Iron nano belt and preparation method thereof Download PDFInfo
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- CN102921940A CN102921940A CN2012103530759A CN201210353075A CN102921940A CN 102921940 A CN102921940 A CN 102921940A CN 2012103530759 A CN2012103530759 A CN 2012103530759A CN 201210353075 A CN201210353075 A CN 201210353075A CN 102921940 A CN102921940 A CN 102921940A
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Abstract
The invention relates to an iron nano belt and a preparation method thereof. The thickness of the iron nano belt is 20 to 40 nanometers, the length is 5 microns to 1 centimeter, and the width is 100 to 500 nanometers. The preparation method for the iron nano belt comprises the following steps of: soaking a copper-iron composite wire into etching liquid for 2 to 20 hours to dissolve copper, fishing the left solid, performing ultrasonic cleaning in ethanol, drying with an infrared lamp, and thus obtaining the iron nano belt, wherein the etching liquid is formed by mixing deionized water and 25 weight percent aqueous ammonia in a volume ratio of 1:9-1:5. The thickness of the iron nano belt provided by the invention is nano-scale, and the length can reach micro-scale and even centimeter-scale, so the iron nano belt has a broad prospect in multiple fields. The preparation method for the iron nano belt has the characteristics of low cost, low energy consumption, simple process, high yield and the like, and can be used for producing the iron nano belts with different lengths in large scale.
Description
Technical field
The present invention relates to a kind of iron nanobelt and preparation method thereof, belong to the nano material preparing technical field.
Background technology
Metal nano material is because its unique physical and chemical performance causes people's extensive concern, and low-dimension nano material becomes the hot issue of research gradually.Professor Wang Zhonglin of the georgia ,u.s.a Institute of Technology waits and finds first and synthesized the conductor oxidate of nano strip structure in the world, is considered to the important breakthrough in the synthetic field of nano material.At present, the preparation method of nanobelt mainly contains: vacuum evaporation-condensation method, microemulsion technology, template synthetic method, molecular self-assembling method etc.
The Fe nano material is widely used in storage medium, wave-absorbing and camouflage material etc. owing to possessing excellent electromagnetic performance.
Summary of the invention
The object of the present invention is to provide a kind of iron nanobelt, its length can reach micron order even Centimeter Level.
The present invention also aims to provide the preparation method of above-mentioned iron nanobelt, by the erosion to the copper iron composite material, obtain the iron nanobelt, have the characteristics such as cost is low, energy consumption is low, technique is simple, output is large.
For achieving the above object, the invention provides a kind of iron nanobelt, its thickness is about the 20-40 nanometer, and length is 5 microns-1 centimetre, and width is 100-500nm.
According to concrete iron nanobelt of the present invention, it prepares by following steps: copper iron composite material silk material is put into etchant soaked 2-20 hour, dissolve copper, fish for remaining solid, in ethanol, carry out ultrasonic cleaning, utilize the infrared lamp oven dry, obtain described iron nanobelt;
Wherein, described etchant by deionized water and concentration be the ammoniacal liquor of 25wt.% by 1: 9-1: 5 volume ratio mixes.
The present invention also provides the preparation method of above-mentioned iron nanobelt, and it may further comprise the steps:
Copper iron composite material silk material is put into etchant soaked 2-20 hour, dissolve copper, fish for remaining solid, in ethanol, carry out ultrasonic cleaning, utilize the infrared lamp oven dry, obtain the iron nanobelt;
Wherein, etchant by deionized water and concentration be the ammoniacal liquor of 25wt.% by 1: 9-1: 5 volume ratio mixes.
In above-mentioned preparation method, preferred, in the copper iron composite material, the mass ratio of copper and iron is 10: 1-6: 1.
In above-mentioned preparation method, preferred, it also comprises the step of following preparation copper iron composite material silk material:
Choosing elemental copper and the purity that purity is 99.0wt.%-99.9wt.% by the composition proportion of copper iron composite material is the fe of 99.0wt.%-99.9wt.%;
Elemental copper and fe are put into vacuum be higher than 10
-1In the smelting furnace of Pa or inert gas shielding, obtain the copper iron composite material 1600 ℃ of meltings, be cast into ingot casting;
Be club-shaped material with ingot casting 500 ℃ of forge hots, the wire drawing that described club-shaped material is carried out multi-pass is processed and is obtained described copper iron composite material silk material.
In above-mentioned preparation method, concrete hot candied processing mode can be installed according to actual needs usual manner and carried out, and preferably, carries out 2-3 time annealing in process in hot candied process, and the temperature of annealing in process is 500 ℃, and the time is 5-10 minute.
The thickness of iron nanobelt provided by the present invention is nanoscale, and length can reach micron order, even Centimeter Level, all holds out broad prospects in a plurality of fields.The preparation method of iron nanobelt provided by the invention has the characteristics such as cost is low, energy consumption is low, technique is simple, the nanobelt of the different length that can be mass-produced.
Description of drawings
The following drawings only is intended to the present invention done and schematically illustrates and explain, not delimit the scope of the invention.Wherein:
Fig. 1 and Fig. 2 are the SEM photo of the iron nanobelt of embodiment 1 preparation;
Fig. 3 is the energy spectrum composition analysis result of the iron nanobelt of embodiment 1 preparation;
Fig. 4 and Fig. 5 are the SEM photo of the iron nanobelt of embodiment 2 preparations.
The specific embodiment
Understand for technical characterictic of the present invention, purpose and beneficial effect being had more clearly, referring now to Figure of description technical scheme of the present invention is carried out following detailed description, but but can not be interpreted as restriction to practical range of the present invention.
Embodiment 1
The present embodiment provides a kind of iron nanobelt, and it prepares by following steps:
1, preparation copper iron composite material (content of Fe is 10.7wt%) silk material
(1) choosing elemental copper and the purity that purity is 99.5wt.% by copper iron composite material composition proportion is the fe of 99.5wt.%;
(2) above-mentioned elemental copper, fe are put into vacuum and be higher than 10
-1Melting obtains the copper iron composite material in the smelting furnace of Pa or inert gas shielding, is cast into ingot casting;
(3) be club-shaped material with ingot casting 500 ℃ of forge hots, through the multi-pass wire drawing, in the process of wire drawing, carry out 500 ℃, 5 minutes annealing in process, finally obtain respectively the copper iron composite material silk material that diameter is 0.5mm, 0.2mmm.
2, be that the copper iron composite material silk material of 0.5mm corrodes preparation iron nanobelt to diameter
Be diameter that the copper iron composite material silk material of 0.5mm is immersed in the etchant that is mixed by 1: 9 volume ratio by deionized water and ammoniacal liquor (ammonia concn 25wt.%), through 10 hours, the copper matrix all dissolves, and fishes for remaining iron nanobelt, and ultrasonic cleaning is 1 minute in absolute ethyl alcohol, oven dry is 1 minute under infrared lamp, obtain the iron nanobelt, its SEM photo as depicted in figs. 1 and 2, as can be seen from Figure, the thick 40nm that is about of the sheet of this iron nanobelt, length can reach 0.6mm.Fig. 3 is the constituent analysis result of Fe nanobelt among Fig. 2, and wherein, Fe content is 95.28% (mass fraction), and Cu content is 4.72%.
Embodiment 2
The present embodiment provides a kind of iron nanobelt, and it is to corrode preparation by the copper iron composite material silk material to the diameter 0.2mm of the step 1 of embodiment 1 preparation:
Be diameter that the copper iron composite material silk material of 0.2mm is immersed in the etchant that is mixed by 1: 8 volume ratio by deionized water and ammoniacal liquor (ammonia concn 25wt.%), through 5 hours, the copper matrix all dissolves, and fishes for remaining iron nanobelt, and ultrasonic cleaning is 1 minute in absolute ethyl alcohol, oven dry is 1 minute under infrared lamp, obtain the iron nanobelt, its SEM photo as shown in Figure 4 and Figure 5, as can be seen from Figure, the thickness of this iron nanobelt is about 25nm, and length can reach 1mm.
Claims (9)
1. iron nanobelt, its thickness is the 20-40 nanometer, and length is 5 microns-1 centimetre, and width is the 100-500 nanometer.
2. iron nanobelt as claimed in claim 1, it prepares by following steps: copper iron composite material silk material is put into etchant soaked 2-20 hour, dissolve copper, fish for remaining solid, in ethanol, carry out ultrasonic cleaning, utilize the infrared lamp oven dry, obtain described iron nanobelt;
Wherein, described etchant by deionized water and concentration be the ammoniacal liquor of 25wt.% by 1: 9-1: 5 volume ratio mixes.
3. iron nanobelt according to claim 2, wherein, in the described copper iron composite material, the mass ratio of copper and iron is 10: 1-6: 1.
4. iron nanobelt according to claim 1 and 2, wherein, described copper iron composite material silk material prepares by following steps:
Choosing elemental copper and the purity that purity is 99.0wt.%-99.9wt.% by the composition proportion of copper iron composite material is the fe of 99.0wt.%-99.9wt.%;
Described elemental copper and fe are put into vacuum be higher than 10
-1In the smelting furnace of Pa or inert gas shielding, obtain the copper iron composite material 1600 ℃ of meltings, be cast into ingot casting;
Be club-shaped material with ingot casting 500 ℃ of forge hots, the wire drawing that described club-shaped material is carried out multi-pass is processed and is obtained described copper iron composite material silk material.
5. iron nanobelt according to claim 4 wherein, carries out 2-3 time annealing in process in hot candied process, and the temperature of annealing in process is 500 ℃, and the time is 5-10 minute.
6. the preparation method of each described iron nanobelt of claim 1-5, it may further comprise the steps:
Copper iron composite material silk material is put into etchant soaked 2-20 hour, dissolve copper, fish for remaining solid, in ethanol, carry out ultrasonic cleaning, utilize the infrared lamp oven dry, obtain described iron nanobelt;
Wherein, described etchant by deionized water and concentration be the ammoniacal liquor of 25wt.% by 1: 9-1: 5 volume ratio mixes.
7. preparation method according to claim 6, wherein, in the described copper iron composite material, the mass ratio of copper and iron is 10: 1-6: 1.
8. according to claim 6 or 7 described preparation methods, it is further comprising the steps of:
Choosing elemental copper and the purity that purity is 99.0wt.%-99.9wt.% is the fe of 99.0wt.%-99.9wt.%;
Described elemental copper and fe are put into vacuum be higher than 10
-1In the smelting furnace of Pa or inert gas shielding, obtain the copper iron composite material 1600 ℃ of meltings, be cast into ingot casting;
Be club-shaped material with ingot casting 500 ℃ of forge hots, the wire drawing that described club-shaped material is carried out multi-pass is processed and is obtained described copper iron composite material silk material.
9. preparation method according to claim 8 wherein, carries out 2-3 time annealing in process in hot candied process, and the temperature of annealing in process is 500 ℃, and the time is 5-10 minute.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112859216A (en) * | 2021-01-14 | 2021-05-28 | 北京科技大学 | Multilayer thin film structure with significant directionally selective emissivity |
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| CN101096052A (en) * | 2006-06-28 | 2008-01-02 | 河北科技大学 | Preparation method of micrometer and sub-micron iron-based metallic fibre |
| CN101225486A (en) * | 2008-01-15 | 2008-07-23 | 上海理工大学 | Copper-based in-situ composite material and preparation method thereof |
| CN101525731A (en) * | 2009-04-22 | 2009-09-09 | 东南大学 | Cu-Fe original-position compound copper base material and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096052A (en) * | 2006-06-28 | 2008-01-02 | 河北科技大学 | Preparation method of micrometer and sub-micron iron-based metallic fibre |
| CN101225486A (en) * | 2008-01-15 | 2008-07-23 | 上海理工大学 | Copper-based in-situ composite material and preparation method thereof |
| CN101525731A (en) * | 2009-04-22 | 2009-09-09 | 东南大学 | Cu-Fe original-position compound copper base material and preparation method thereof |
Non-Patent Citations (3)
| Title |
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| 孙世清: "高铬铁基纤维的热稳定性和磁性", 《材料工程》, no. 11, 30 November 2007 (2007-11-30), pages 3 - 6 * |
| 葛继平等: "高强度高导电的形变Cu-Fe原位复合材料", 《中国有色金属学报》, vol. 14, no. 04, 30 April 2004 (2004-04-30), pages 568 - 573 * |
| 陆月娇等: "退火对Cu-8wt%Fe原位形变复合材料组织及性能的影响", 《热加工工艺》, no. 22, 30 November 2009 (2009-11-30), pages 96 - 99 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859216A (en) * | 2021-01-14 | 2021-05-28 | 北京科技大学 | Multilayer thin film structure with significant directionally selective emissivity |
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