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Production of oxide copper nanometer tube array

A technology of nanotube array and copper oxide, which is applied in the direction of nanostructure manufacturing, copper oxide/copper hydroxide, nanotechnology, etc., can solve the problems that nanotube arrays are easily damaged and application limitations, and meet the requirements and are easy to achieve, methods Simple, Inexpensive Effects

Inactive Publication Date: 2006-08-16
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Reliance on templates limits the applicability of these methods, as the nanotube arrays are extremely vulnerable to destruction when removed from the template

Method used

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  • Production of oxide copper nanometer tube array
  • Production of oxide copper nanometer tube array
  • Production of oxide copper nanometer tube array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Preparation of copper hydroxide nanotube arrays at low temperature

[0029] Follow the steps below:

[0030] 1. Prepare a copper foil with a size of 1.5-1.0×1.5-0.3×0.3 cubic centimeters, and clean it in an ultrasonic cleaner with acetone or dilute nitric acid to remove impurities on the surface of the copper foil;

[0031] 2. Prepare a sodium hydroxide solution with a concentration of 2.0-3.0 mol / liter and an ammonium persulfate solution with a concentration of 1 mol / liter;

[0032] 3. Take 20-30 ml of the prepared sodium hydroxide solution, put the prepared copper foil into it, and then inject 2.0-4.0 ml of the prepared ammonium persulfate solution, so that the molar ratio of the sodium hydroxide solution and the ammonium persulfate solution The ratio is 20-30:1;

[0033] 4. React at a temperature of 0-5°C, and after 5-25 hours, obtain copper foil-based growth with Cu(OH) 2 products of nanotube arrays;

[0034] 5. Wash the obtained product with distille...

Embodiment 2

[0036] Example 2: Preparation of copper hydroxide nanotube arrays at room temperature

[0037] Follow the steps below:

[0038] 1, with step 1 in embodiment 1;

[0039] 2, with step 2 in embodiment 1;

[0040] 3, with step 3 in embodiment 1;

[0041] 4. React at room temperature, after 0.5-5.0 hours, obtain copper foil as the substrate with growth of Cu(OH) 2 products of nanotube arrays;

[0042] 5. Same as step 5 in Example 1.

[0043] The difference from Example 1 is that in step 4 of this example, normal temperature is used as the reaction condition, and the product obtained from the normal temperature reaction is also orthorhombic Cu(OH) 2 , verified by X-ray diffraction XRD analysis. image 3 Middle a (low magnification) and b (high magnification) are scanning electron microscope SEM images, analysis shows that Cu(OH) produced under normal temperature conditions 2The length of the nanotubes is mostly about 5-10 microns, the diameter of the tubes is between 50-500nm...

Embodiment 3

[0044] Embodiment 3: Preparation of copper oxide nanotube array

[0045] The copper hydroxide nanotube array prepared in Example 1 is placed in a tube furnace. Since the array is grown on the copper foil substrate, in order to avoid the oxidation of the substrate, the array grown on it needs to be processed under a protective atmosphere. Transformation by heating. The specific operation is to inject 0.02m 3 Slowly feed nitrogen at a flow rate of about 15-30 minutes, remove the air in the tube furnace and heat at 60°C for 2 hours to preheat to avoid the temperature rising too fast and breaking the nanotube wall; then rise Heating to 120°C for 4 hours to complete Cu(OH) 2 The transformation of nanotube arrays to CuO nanotube arrays, and then kept at 180 ° C for 6 hours to enhance the crystallinity of CuO nanotubes, then stopped heating, cooled to room temperature in a natural state, and turned off the nitrogen source to obtain CuO nanotubes array.

[0046] X-ray diffraction ...

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Abstract

A process for preparing the array of copper oxide nanotubes includes such steps as reaction between sodium hydroxide, ammonium persulfate and copper foil in water at 0-30 deg.C to generate the array of copper hydroxide nanotube, and heating in inertial gas or vacuum.

Description

Technical field: [0001] The invention relates to a method for preparing a copper oxide nanotube array. Background technique [0002] Use physical and chemical methods to grow various nanoscale material units, and use this material unit as a unit to arrange them according to certain rules to form a one-dimensional, two-dimensional, and three-dimensional array to form a nanostructure system. It not only has The characteristics of nanoparticles, such as quantum size effect, small size effect, surface effect, etc., also have new effects caused by the composition of nanostructures, such as quantum coupling effect and synergistic effect. Secondly, the performance of this nanostructure system can be easily characterized by external fields (electricity, magnetism, light and radiation fields, etc.), which is the basis for the design of nanodevices. [0003] The preparation and research of nanostructure arrays will provide a broad application space for the miniaturization and intelli...

Claims

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Application Information

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IPC IPC(8): B82B3/00C01G3/02
Inventor 张卫新杨则恒丁筛霞杨世和
Owner HEFEI UNIV OF TECH
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