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Method for preparing magnetic metal nanotubes through pulse electrodeposition

A magnetic metal nanometer and pulse electrodeposition technology, which is applied in nanotechnology, metal material coating process, electrolytic coating, etc., can solve the problems of inability to prepare high-quality magnetic metal nanotubes, the inability to control the length and diameter of nanotubes, etc. Achieve the effect of being conducive to mass production preparation, low cost and strong operability

Active Publication Date: 2018-07-13
NINGBO ZHETIE JIANGNING CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems in the prior art that the length and diameter of nanotubes cannot be controlled, the preparation of high-quality magnetic metal nanotubes cannot be prepared, the cost is too high, and a single method can only prepare specific types of nanotubes. A method for preparing magnetic metal nanotubes by pulse electrodeposition with controlled nanotube length and diameter, low cost, simple process, and wide application range

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  • Method for preparing magnetic metal nanotubes through pulse electrodeposition
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  • Method for preparing magnetic metal nanotubes through pulse electrodeposition

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Embodiment 1

[0046] A method for preparing magnetic metal nanotubes by pulse electrodeposition, the method for preparing magnetic metal nanotubes by pulse electrodeposition comprises the following steps:

[0047] (a) Template preparation

[0048] (a-1) Primary oxidation: anneal the aluminum sheet at 500°C for 4 hours, then sonicate in acetone for 10 minutes, then soak in 5wt% sodium hydroxide aqueous solution for 5 minutes, sonicate in acetone for 3 minutes, and then The treated aluminum sheet is placed in 0.3mol / L oxalic acid aqueous solution, and electrochemically corroded for 4 hours at a voltage of 40V and a temperature of 0°C to obtain a primary alumina sheet;

[0049] (a-2) Removing the primary oxide film: take the primary alumina sheet prepared in step (a-1), and place it in a mixed aqueous solution of phosphoric acid and chromic acid with a phosphoric acid concentration of 6 wt% and a chromic acid concentration of 1.5 wt% at 65°C Soak in the middle for 12h, and then clean it with ...

Embodiment 2

[0059] A method for preparing magnetic metal nanotubes by pulse electrodeposition, the method for preparing magnetic metal nanotubes by pulse electrodeposition comprises the following steps:

[0060] (a) Template preparation

[0061] (a-1) Primary oxidation: anneal the aluminum sheet at 500°C for 4 hours, then sonicate in acetone for 10 minutes, then soak in 5wt% sodium hydroxide aqueous solution for 5 minutes, sonicate in acetone for 3 minutes, and then The treated aluminum sheet is placed in 0.3mol / L oxalic acid aqueous solution, and electrochemically corroded for 4 hours at a voltage of 40V and a temperature of 0°C to obtain a primary alumina sheet;

[0062] (a-2) Removing the primary oxide film: take the primary alumina sheet prepared in step (a-1), and place it in a mixed aqueous solution of phosphoric acid and chromic acid with a phosphoric acid concentration of 6 wt% and a chromic acid concentration of 1.5 wt% at 65°C Soak in the middle for 12h, and then clean it with ...

Embodiment 3

[0072] A method for preparing magnetic metal nanotubes by pulse electrodeposition, the method for preparing magnetic metal nanotubes by pulse electrodeposition comprises the following steps:

[0073] (a) Template preparation

[0074] (a-1) Primary oxidation: anneal the aluminum sheet at 500°C for 4 hours, then sonicate in acetone for 10 minutes, then soak in 5wt% sodium hydroxide aqueous solution for 5 minutes, sonicate in acetone for 3 minutes, and then The treated aluminum sheet is placed in 0.3mol / L oxalic acid aqueous solution, and electrochemically corroded for 4 hours at a voltage of 40V and a temperature of 0°C to obtain a primary alumina sheet;

[0075] (a-2) Removing the primary oxide film: take the primary alumina sheet prepared in step (a-1), and place it in a mixed aqueous solution of phosphoric acid and chromic acid with a phosphoric acid concentration of 6 wt% and a chromic acid concentration of 1.5 wt% at 65°C Soak in the middle for 12h, and then clean it with ...

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Abstract

The invention relates to a method for preparing magnetic metal nanotubes through pulse electrodeposition, wherein the method has huge potential application prospects on the aspect of magnetic recording materials. The method has the beneficial effects of being simple, convenient to implement and extremely high in maneuverability. The lengths and the diameters of the prepared magnetic metal nanotubes can be effectively controlled; and according to the method, the cost is relatively low, the requirement for instrument precision is not strict, applicability is extremely high, the method can be used for preparing the various magnetic metal nanotubes and is not limited to preparing the singular magnetic metal nanotube, obvious changing cannot occur in the process steps, and mass production preparation is facilitated.

Description

technical field [0001] The invention relates to the field of a method for preparing metal nanotubes, in particular to a method for preparing magnetic metal nanotubes by pulse electrodeposition, which has great potential application prospects in magnetic recording materials. Background technique [0002] At present, the synthesis methods of magnetic metal nanotubes mainly include electroless plating, atomic layer deposition (ALD), sol-gel (sol-gel) and electrodeposition. Among them, electroless plating can only prepare metals with high reduction potential that can be reduced by chemical reagents, such as Ni, Co, etc.; ALD requires sophisticated instruments and is only suitable for the preparation of Fe 3 o 4 and other oxides; although the sol-gel method is simple and convenient and does not require any sophisticated instruments, it can only prepare oxides. In addition, none of the above methods can tune the properties of nanotubes by controlling the length and diameter of t...

Claims

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Application Information

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IPC IPC(8): C23C14/34C23C14/16C23C14/35C23C14/02C25D11/04B82Y40/00
CPCB82Y40/00C23C14/0005C23C14/025C23C14/165C23C14/3485C23C14/35C25D11/045
Inventor 胡军陈焕新李越星汪晶
Owner NINGBO ZHETIE JIANGNING CHEM
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