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Electrochemical method for preparing nickel metal tubular nano array

A nano-array, electrochemical technology, applied in nano-technology and other directions, can solve the problem of few nano-tubes, and achieve the effect of easy operation and simple preparation method.

Inactive Publication Date: 2013-07-10
佛山市中国地质大学研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods for preparing Ni nanowires are very proficient, but there are few reports about nanotubes. It has been the direction of researchers' efforts to find a simple and controllable method for preparing nanotubes.

Method used

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  • Electrochemical method for preparing nickel metal tubular nano array
  • Electrochemical method for preparing nickel metal tubular nano array
  • Electrochemical method for preparing nickel metal tubular nano array

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Experimental program
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Embodiment Construction

[0021] Now in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0022] a) Preparation of alumina template

[0023] The high-purity (99.999%) aluminum sheet was degreased, dried and annealed in vacuum, and the porous alumina template (AAO) was prepared by the secondary anodic oxidation method. The secondary anodic oxidation process was as follows:

[0024] Prepare the aluminum template—clean the aluminum template—surface polish the aluminum template—the first alumina template—remove the oxide film of the aluminum template for the first time—the second alumina template—remove the aluminum substrate—remove the barrier layer—obtain the alumina template (AAO template), nanopores are generated on the alumina template,

[0025] Such as figure 1 , 2 As shown, the nanopores on the obtained alumina template are regular hexagonal porous structures with a pore diameter of 65-75nm, and the density of nanopores on the alumina tem...

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Abstract

The invention provides an electrochemical method for preparing a regularly ordered Ni tubular nano array with an AAO (Anodic Aluminum Oxide) template in an ammonium sulfate system. With the method, a Ni nano tube, of which the external diameter is about 70nm and the inner diameter is about 50nm, can be obtained. The obtained Ni nano tube can be represented by a scanning electron microscope (SEM), a transmission electron microscope (TEM), a selected area electron diffraction (SAED) pattern and an X-ray diffraction (XRD). The Ni nano tube prepared by the method is ordered in height and uniform in size, the appearance of the Ni nano tube is dependent on the structure of the AAO template, and the external diameter of the Ni nano tube is equal to the pore diameter of the template.

Description

[0001] technical field [0002] The invention belongs to the technical field of electronic materials, relates to nickel nanomaterials which have important applications in the fields of ultra-high-density magnetic recording media, sensors and other magnetic devices, and particularly relates to a method for preparing tubular nanoarrays of metallic nickel (Ni) . technical background [0003] One-dimensional nanomaterials such as nanorods, nanowires, and nanotubes have broad application prospects in the development of nanodevices due to their unique optical, electrical, and magnetic properties. One-dimensional nickel nanomaterials have important application prospects in the fields of ultra-high density magnetic recording media, sensors and other magnetic devices. At present, the methods for preparing one-dimensional nickel nanomaterials mainly include: DC electrodeposition method to assemble high-density Ni nanowires in the holes of alumina template; AC electrodepositio...

Claims

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Application Information

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IPC IPC(8): C25C5/02B82Y40/00
Inventor 皮振邦田甜王龙艳杨超田熙科
Owner 佛山市中国地质大学研究院
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