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Preparing method for Sm-Co/Fe-Co series biphase coupling magnetic nanowire array

A nanowire array and magnetic nanotechnology, which is applied in the field of preparation of Sm-Co/Fe-Co system dual-phase coupled magnetic nanowire arrays, can solve the problem of poor contact between the cathode and the template gold film, extremely high flatness requirements, and high conditions. higher problems, to achieve the effect of dense structure, easy deposition, simple process and equipment

Active Publication Date: 2015-12-09
HEBEI UNIV OF TECH
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AI Technical Summary

Problems solved by technology

At present, Sm-Co / Fe-Co dual-phase nano-coupling materials are mainly prepared by electron beam evaporation, laser evaporation, sputtering, vacuum spraying, epitaxy, molten salt electrodeposition or non-aqueous electrodeposition (Liu Xianghua, Yan Yan, Cui Lilia , etc. The magnetic properties of nanostructured SmCo / FeCo multilayer films. Acta Physica Sinica, 1999, 48 (S): S180~S186); These techniques require more conditions for the preparation of Sm-Co / Fe-Co dual-phase nano-coupling materials High, while the aqueous solution electrodeposition method is simple in equipment, easy to operate, easy to form a film on the surface and curved surface, and the thickness, composition and shape of the film can be adjusted by changing some parameters, but because Sm is difficult to restore from the solution to obtain , so there are few reports on aqueous solution electrodeposition of Sm–Co alloy nanowire arrays at home and abroad
[0004] CN201410312165 discloses a method for preparing Sm-Co alloy amorphous magnetic nanowire arrays. The disadvantage is that the test success rate is very low, that is to say, in ten deposition tests, about eight or nine tests will fail. The reason It is: (1) CN201410312165 has extremely high requirements on the flatness of the AAO template, and the flatness of the template is slightly poor, which will lead to poor contact between the cathode and the template gold film, and will not grow Sm-Co amorphous alloy nanowires, ( 2) The accuracy of the concentration ratio of Sm, Co and glycine is extremely high. If the concentration ratio is slightly deviated, it is difficult to restore Sm ions from the solution, and the composition of the nanowires obtained in the experiment becomes pure Co. Crystalline nanowires, (3) Even if the test is successful, the obtained amorphous Sm-Co alloy nanowires have a loose structure and are often accompanied by a large number of Sm-Co alloy amorphous nanotubes

Method used

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  • Preparing method for Sm-Co/Fe-Co series biphase coupling magnetic nanowire array
  • Preparing method for Sm-Co/Fe-Co series biphase coupling magnetic nanowire array
  • Preparing method for Sm-Co/Fe-Co series biphase coupling magnetic nanowire array

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The first step is to install a dedicated single-tank double-liquid alternate deposition device:

[0042] Such as figure 1 Examples shown;

[0043] The second step, the processing work before AAO template deposition:

[0044] First, soak the AAO template with gold spraying on the bottom in deionized water, place it in a water bath at 60°C for 1 min, and then place it in an ultrasonic wave until the residual bubbles in the nanopores are driven away;

[0045] The third step, configuration of Sm-Co phase deposition solution:

[0046] Dissolve SmCl in deionized water 3 ·6H 2 O, CoCl 2 ·6H 2 O, H 3 BO 3 , glycine and ascorbic acid, the resulting solution of SmCl 3 ·6H 2 The concentration of O is 0.4mol / L, CoCl 2 ·6H 2 O concentration is 0.1mol / L, H 3 BO 3 The concentration of Glycine is 30g / L, the concentration of glycine is 0.2mol / L, and the concentration of ascorbic acid is 3g / L;

[0047] The fourth step, configuration of Fe-Co phase deposition solution:

[...

Embodiment 2

[0061] The first step is to install a dedicated single-tank double-liquid alternate deposition device:

[0062] Such as figure 1 Examples shown;

[0063] The second step, the processing work before AAO template deposition:

[0064] First, soak the AAO template with gold spraying on the bottom in deionized water, place it in a water bath at 60°C for 1 min, and then place it in an ultrasonic wave until the residual bubbles in the nanopores are driven away;

[0065] The third step, configuration of Sm-Co phase deposition solution:

[0066] Dissolve SmCl in deionized water 3 ·6H 2 O, CoCl 2 ·6H 2 O, H 3 BO, glycine and ascorbic acid, SmCl in the resulting solution 3 ·6H 2 The concentration of O is 0.3mol / L, CoCl 2 ·6H 2 O concentration is 0.05mol / L, H 3 The concentration of BO is 25g / L, the concentration of glycine is 0.1mol / L, and the concentration of ascorbic acid is 2g / L;

[0067] The fourth step, configuration of Fe-Co phase deposition solution:

[0068] Dissolve...

Embodiment 3

[0074] The first step is to install a dedicated single-tank double-liquid alternate deposition device:

[0075] Such as figure 1 Examples shown;

[0076] The second step, the processing work before AAO template deposition:

[0077] First, soak the AAO template with gold spraying on the bottom in deionized water, place it in a water bath at 60°C for 1 min, and then place it in an ultrasonic wave until the residual bubbles in the nanopores are driven away;

[0078] The third step, configuration of Sm-Co phase deposition solution:

[0079] Dissolve SmCl in deionized water 3 ·6H 2 O, CoCl 2 ·6H 2 O, H 3 BO 3 , glycine and ascorbic acid, the resulting solution of SmCl 3 ·6H 2 The concentration of O is 0.5mol / L, CoCl 2 ·6H 2 O concentration is 0.15mol / L, H 3 The concentration of BO is 35g / L, the concentration of glycine is 0.3mol / L, and the concentration of ascorbic acid is 4g / L;

[0080] The fourth step, configuration of Fe-Co phase deposition solution:

[0081] Diss...

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Abstract

The invention relates to a preparing method for a Sm-Co / Fe-Co series biphase coupling magnetic nanowire array and relates to electrolysis production of metal powder of autolysis solutions. The Sm-Co / Fe-Co series biphase coupling magnetic nanowire array with a high deposition rate is obtained through a single-groove double-liquid direct-current chemical deposition method, annealing treatment is carried out on the biphase coupling magnetic nanowire array, and finally the Sm-Co / Fe-Co series biphase coupling magnetic nanowire array with high overall magentic performance is obtained. The defects that in the prior art, the requirement for the condition of preparing a Sm-Co / Fe-Co series biphase nanometer coupling material is high, and the deposition rate of a Sm-Co binary alloy nanowire is low are overcome.

Description

technical field [0001] The technical scheme of the present invention relates to the electrolytic production of metal powder from solution, in particular to the preparation method of Sm-Co / Fe-Co dual-phase coupled magnetic nanowire array. Background technique [0002] In recent years, with the advancement and development of nanomaterial preparation technology, scientists have prepared various eye-catching nanowires with composite structures on the basis of previous experience in preparing nanowires. For example Ni / Cu[59], Co / Cu (Yao Suwei, Song Zhenxing, Wang Hongzhi. Preparation and magnetic properties of Co / Cu multilayer nanowire arrays. Acta Physicochemical Sinica [J], 2007, 23(8): 1306~ 1310) and other multilayer nanowire preparation and magnetic properties research; also like NiCu / Cu (Qi Kuo, Ma Chuansheng, Li Xinghua, etc. NiCu / Cu multilayer nanowire micro-, nano-structure and composition research. Journal of Electron Microscopy [ J], 2012, 31 (2): 97-103) of binary al...

Claims

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Application Information

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IPC IPC(8): C25C5/02C25D3/56C25D5/50B82Y40/00
Inventor 杨薇崔春翔曹斌
Owner HEBEI UNIV OF TECH
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