Preparation method for electro-conductive magnetic nanotube

A magnetic nano and conductive nano technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of high preparation cost, high equipment requirements, short single tube wall of magnetic nanotubes, etc. , to achieve the effect of short cycle and simple preparation process

Inactive Publication Date: 2014-04-09
WUHAN TEXTILE UNIV
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AI Technical Summary

Problems solved by technology

[0002] At present, the synthesis methods of magnetic nanotubes mainly include template electrochemical deposition method and template chemical deposition method. For the synthesis of magnetic nanotubes by template electrochemical deposition method, it is usually necessary to vacuum spray conductive film or coat conductive glue on one side of alumina template. Electrochemical operations can only be performed by making a conductive layer by the method, but this method has problems such as high equipment requirements, poor practicability, and troublesome post-processing of the obtained materials; for the synthesis of magnetic nanotubes by the template chemical deposition method, the principle is based on the porous aluminum oxide film. The nanopore is a microreactor, and the reducing agent and the main salt cation enter from the holes on both sides of the template respectively and undergo redox reactions, thereby generating a large amount of gas. The small aperture of the template causes the generated gas to preferentially move from the axis of the hole with less resistance. discharge, so that the main salt ions are reduced on the pore wall to form nanotubes, but this method has problems such as high preparation costs, short magnetic nanotubes and uneven single tube walls.

Method used

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Experimental program
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Effect test

preparation example Construction

[0025] A preparation method of conductive magnetic nanotubes, the preparation method comprising the following steps;

[0026] a Preparation of sensitizing solution: measure hydrochloric acid with a concentration of 10 ml / L~40 ml / L, and then add a certain mass of stannous chloride, the concentration of stannous chloride is 5 g / L~20 g / L , add deionized water to an appropriate volume when dissolved.

[0027] b Preparation of activation solution: measure hydrochloric acid with a concentration of 5 ml / L~20 ml / L, then add a certain quality of palladium chloride, the concentration of stannous chloride is 0.05 g / L~0.5 g / L, until When dissolving, add deionized water to an appropriate volume.

[0028] c Preparation of electroless plating solution: Weigh a certain amount of main salt according to the main salt concentration of 12 g / L~24 g / L, when the main salt is dissolved, then add complexing Then add 25 g / L~32 g / L buffer and 25 g / L~32 g / L reducing agent, add deionized water to an app...

Embodiment 1

[0038] a Preparation of sensitization solution:

[0039] The concentration of stannous chloride is 20 g / L, and the concentration of hydrochloric acid is 40 ml / L.

[0040] b Preparation of activation solution:

[0041] The concentration of palladium chloride is 0.8 g / L, and the concentration of hydrochloric acid is 10 g / ml / L.

[0042] c Preparation of chemical plating solution:

[0043] The concentration of nickel sulfate is 18 g / L, the concentration of sodium hypophosphite is 28 g / L, the concentration of ammonium chloride is 28 g / L, and the concentration of potassium citrate is 10 g / L.

[0044] d Preparation of nanofiber dissolving agent:

[0045] The nanofiber dissolving agent is prepared from isopropanol and deionized water, wherein the ratio of isopropanol to deionized water is 80:20.

[0046] e Preparation of conductive magnetic nanofibers:

[0047]Immerse the nanofibers in the sensitizing solution prepared in step a. The bath ratio of the nanofibers to the sensitizin...

Embodiment 2

[0051] a Preparation of sensitization solution:

[0052] The concentration of stannous chloride is 10 g / L, and the concentration of hydrochloric acid is 20 ml / L.

[0053] b Preparation of activation solution:

[0054] The concentration of palladium chloride is 0.6 g / L, and the concentration of hydrochloric acid is 20 g / ml / L.

[0055] c Preparation of chemical plating solution:

[0056] The concentration of nickel chloride is 18 g / L, the concentration of sodium hypophosphite is 28 g / L, the concentration of ammonium chloride is 28 g / L, and the concentration of potassium citrate is 10 g / L.

[0057] d Preparation of nanofiber dissolving agent:

[0058] The nanofiber dissolving agent is prepared from isopropanol and deionized water, wherein the ratio of isopropanol to deionized water is 80:20.

[0059] e Preparation of conductive magnetic nanofibers:

[0060] Immerse the nanofibers in the sensitizing solution prepared in step a. The bath ratio of the nanofibers to the sensitiz...

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Abstract

The invention relates to a preparation method for an electro-conductive magnetic nanotube, and belongs to the field of functional nanometer materials. The chemical plating method is adopted in synthesis of the electro-conductive metal nanotube. The method comprises the following steps that a, a nano-fiber bundle is prepared through the melt-extrusion phase separation method; b, chemical plating is carried out on the nano-fiber bundle in the step a to obtain an electro-conductive nano-fiber bundle; c, a solvent is used for dissolving the nano-fiber bundle, wrapped by metal, in the step b. The chemical plating method is adopted for preparing the metal nanotube, and therefore the chemical stability is good, the preparation process is simple, the synthesis cost is low, and the application field is wide.

Description

technical field [0001] The invention relates to the preparation of a magnetic nanotube, in particular to the preparation of a conductive magnetic nanotube, and belongs to the field of functional nanometer materials. Background technique [0002] At present, the synthesis methods of magnetic nanotubes mainly include template electrochemical deposition method and template chemical deposition method. For the synthesis of magnetic nanotubes by template electrochemical deposition method, it is usually necessary to vacuum spray a conductive film or coat conductive glue on one side of the alumina template. Electrochemical operations can only be performed by making a conductive layer by the method, but this method has problems such as high equipment requirements, poor practicability, and troublesome post-processing of the obtained materials; for the template chemical deposition method to synthesize magnetic nanotubes, the principle is based on the porous aluminum oxide film. The na...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82Y40/00B82Y30/00C23C18/36C23C18/28
Inventor 王栋周舟夏明陶一飞刘琼珍吴志红
Owner WUHAN TEXTILE UNIV
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