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CuO/Ni core-shell nanowire and preparation method thereof

A technology of nanowires and nickel nanowires is applied in the field of CuO/Ni core-shell nanowires and their preparation, and achieves the effects of low cost and simple process

Inactive Publication Date: 2016-05-25
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods are widely used to prepare metal / metal, semiconductor / metal, etc. core-shell nanowires, while oxide / metal core-shell nanowires are rarely reported.

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  • CuO/Ni core-shell nanowire and preparation method thereof
  • CuO/Ni core-shell nanowire and preparation method thereof
  • CuO/Ni core-shell nanowire and preparation method thereof

Examples

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Embodiment 1

[0027] This embodiment provides a method for preparing CuO / Ni core-shell nanowires, comprising the following steps:

[0028] (1) With the 80nm anodized aluminum template as the cathode and the carbon rod as the anode, an electrochemical deposition method is used to deposit copper nanowire arrays in the anodized aluminum template; wherein before the deposition, the anodized aluminum template is preformed For processing, use the method of magnetron sputtering to sputter a layer of Ag layer with a thickness of 200nm on its back as a conductive electrode; each liter of electrolyte for depositing copper nanowire arrays contains 90g of CuSO 4 ·5H 2 O, 45g of H 2 SO 4 ; The deposition voltage was 2V.

[0029] (2) The anodized aluminum template containing the copper nanowire array obtained in step (1) is immersed in a phosphoric acid solution with a mass fraction of 5% for hole expansion, and the template after hole expansion for 10 min is placed in a heat treatment furnace at 80° ...

Embodiment 2

[0035] This embodiment provides a method for preparing CuO / Ni core-shell nanowires, comprising the following steps:

[0036] (1) Using an anodized aluminum template with a pore size of 30nm as the cathode and a carbon rod as the anode, an electrochemical deposition method is used to deposit copper nanowire arrays in the anodized aluminum template; wherein before the deposition, the anodized aluminum template is pre-treated. For processing, use the method of magnetron sputtering to sputter a layer of Ag layer with a thickness of 200nm on its back as a conductive electrode; each liter of electrolyte for depositing copper nanowire arrays contains 90g of CuSO 4 ·5H 2 O, 45g of H 2 SO 4 ; The deposition voltage was 2V.

[0037] (2) The anodized aluminum template containing the copper nanowire array obtained in step (1) is immersed in a phosphoric acid solution with a mass fraction of 5% for hole expansion, and the template after hole expansion for 15 minutes is placed in a heat ...

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Abstract

The invention provides a CuO / Ni core-shell nanowire and a preparation method thereof. According to the preparation method, an AOO (anodic aluminum oxide) template is taken as a cathode, a carbon rod is taken as an anode, copper nanowire arrays are deposited in the AOO template with an electrochemical deposition method and then soaked in a phosphoric acid solution for pore expansion, thermal treatment is also performed, nickel nanowire arrays are deposited on the treated template, the AOO template containing the nickel nanowire arrays and the CuO nanowire arrays is obtained, finally, the AOO template is soaked in a sodium hydroxide solution, an aluminum oxide template is removed, and the CuO / Ni core-shell nanowire is obtained after ethanol cleaning and infrared drying. The preparation method adopts a simple process and can realize mass production, the cost is low, and the prepared CuO / Ni core-shell nanowire can be 25 mu m long.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a CuO / Ni core-shell nanowire and a preparation method thereof. Background technique [0002] Due to their unique physical and chemical properties, core-shell nanowires have broad application prospects in solar cells, photocatalysis, nanoelectronic devices, magnetic storage devices, etc. How to prepare core-shell nanowires has become a research hotspot. [0003] At present, the methods for preparing core-shell nanowires include hydrothermal synthesis, electron beam epitaxy, physical sputtering, and vapor deposition. These methods are widely used to prepare metal / metal, semiconductor / metal and other core-shell nanowires, while oxide / metal core-shell nanowires are rarely reported. Contents of the invention [0004] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a CuO / Ni core-shell nanowire and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/04B82Y40/00
CPCB82Y40/00C25D1/006C25D1/04
Inventor 杨峰陈雷崔立山
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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