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Method for preparing Ag nanowires based on ZnO nanotube templates

A technology of nanotubes and nanowires, which is applied in the field of preparing Ag nanowires based on ZnO nanotube templates, can solve the problems of cumbersome preparation process and application limitations, and achieve the effects of simplifying the process, reducing the preparation cost and reducing the preparation process

Inactive Publication Date: 2016-11-09
XI AN JIAOTONG UNIV
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Problems solved by technology

However, the preparation process of the AAO template is relatively cumbersome, mainly including high-temperature annealing of the aluminum substrate, degreasing, polishing, primary oxidation, removal of the primary oxide film, secondary oxidation, removal of the aluminum substrate, and removal of the barrier layer.
In addition, the AAO template is a porous structure fabricated on a planar aluminum substrate, and its application is limited by the planar structure, so the metal nanowire array structure can only be deposited on a planar substrate

Method used

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  • Method for preparing Ag nanowires based on ZnO nanotube templates
  • Method for preparing Ag nanowires based on ZnO nanotube templates
  • Method for preparing Ag nanowires based on ZnO nanotube templates

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing and embodiment case, the present invention is described in further detail:

[0034] Such as Figure 4 , the present invention includes planar ITO conductive glass 1 as a substrate, chemically etched ZnO nanotubes 3, and Ag nanowires 4 electrodeposited in ZnO nanotube templates.

[0035] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 as shown,

[0036] The above-mentioned method for preparing Ag nanowires based on ZnO nanotube templates comprises the following steps:

[0037] 1) Cut the ITO conductive glass 1 whose length, width and thickness are 10mm, 5mm and 1.1mm respectively, clean it ultrasonically with acetone, absolute ethanol and deionized water in sequence, and dry it at room temperature, as figure 1 shown;

[0038] 2) 11.0mg Zn(CH 3 COO) 2 2H 2 O and 4mg NaOH were dissolved in 500mL absolute ethanol and kept at 65°C for 30min to obtain Zn 2+ Concentration is the ZnO seed layer solution ...

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Abstract

The invention discloses a method for preparing Ag nanowires based on ZnO nanotube templates. The method adopts plane ITO conductive glass as a substrate, chemically-etched ZnO nanotube templates and Ag nanowires which are electrically deposited in the ZnO nanotube templates. The method comprises the following steps: firstly growing ZnO nanorods on the ITO conductive glass in a water bath manner; secondly dissolving central positions of the ZnO nanorods by using a NaOH solution to form ZnO nanotubes; taking the ZnO nanotubes as templates and electrically depositing Ag nanowires in hollow structures of the ZnO nanotubes via a cyclic voltammetry method; and finally dissolving the ZnO nanotube templates by using a high-concentration NaOH solution. Through the method, conventional AAO templates can be replaced by the ZnO nanotubes; the Ag nanowires can be electrically deposited on a conductive substrate of any shape; Pt and Cu metal nano array structures with controllable sizes and shapes can also be prepared by adjusting the parameters such as pore diameter and depth of the ZnO nanotubes.

Description

technical field [0001] The invention belongs to the field of micro-nano manufacturing, and in particular relates to a method for preparing Ag nanowires based on a ZnO nanotube template. Background technique [0002] Metal nanoarray structures have been widely used in micro-nano devices such as biosensors, gas sensors, sensitized solar cells, photodegraders, and light-emitting diodes due to their outstanding electronic, optical, and catalytic properties. Ag nanowires have the advantages of large specific surface area, strong electron transport ability, high catalytic efficiency, stable chemical properties, and high isoelectric point, so they have been extensively studied. The preparation of Ag nanowire array structures mainly includes template method, chemical synthesis method, electrochemical deposition method, etc. Among them, the template method is simple and easy to control the size and shape of Ag nanowires, and is currently widely used. [0003] Commonly used templates...

Claims

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Application Information

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IPC IPC(8): B82B3/00B82Y40/00
CPCB82B3/00B82Y40/00
Inventor 景蔚萱周帆吴琼崔奇兵蒋庄德高伟卓徐志鹏
Owner XI AN JIAOTONG UNIV
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