Preparation method for one-dimensional metallic oxide nano needle material

A technology of nano needles and oxides, which is applied in the field of nano materials and nano, which can solve the problems of high equipment requirements, restrictions on the application of one-dimensional metal oxide nano materials, and high synthesis costs, and achieve high controllability, low cost, and high density. Effect

Inactive Publication Date: 2007-09-26
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods have problems such as high equipment requirements and high synthesis costs, which limit the application of one-dimensional metal oxide nanomaterials.

Method used

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  • Preparation method for one-dimensional metallic oxide nano needle material
  • Preparation method for one-dimensional metallic oxide nano needle material
  • Preparation method for one-dimensional metallic oxide nano needle material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: Preparation of one-dimensional CuO nanoneedle material

[0013] (1) The pH of the preparation is 1.0, and the concentration of each component is copper sulfate 210gl -1 , boric acid 45gl -1 , saccharin 5gl -1 , sodium fluoride 0.5gl -1 (2) Using the pulse electrodeposition method, the pulse electrodeposition parameters: the output pulse frequency f is 100Hz, the duty ratio r is 10%, the positive pulse working current is 0.5A, and the negative pulse working current is 0.3A. Electrodeposit a layer of nanocrystalline Cu film on the surface of the substrate; (3) Heat the nanocrystalline Cu film in air at 700°C, 800°C, 900°C, and 1000°C for 1 to 2 hours, and thermally oxidize it to obtain a one-dimensional CuO nanometer Needle.

[0014] The scanning electron microscope SEM photos of each product obtained are shown in Figure 1, Figure 2, Figure 3, and Figure 4. Figure 1, Figure 2, Figure 3, and Figure 4 are respectively when the thermal oxidation temperature is...

Embodiment 2

[0015] Example 2: Preparation of one-dimensional ZnO nanoneedle material

[0016] (1) The pH value of the preparation is 5.0, and the concentration of each component is zinc chloride 100gl -1 , potassium chloride 160gl -1 , boric acid 30gl -1 , saccharin 5gl -1 (2) Using the pulse electrodeposition method, the pulse electrodeposition parameters: the output pulse frequency f is 100Hz, the duty ratio r is 10%, the positive pulse working current is 0.5A, and the negative pulse working current is 0.3A. Electrodeposit a layer of nanocrystalline Zn film on the surface of the substrate; (3) Heat the nanocrystalline Zn film in air at 300°C, 400°C, 500°C, and 600°C for 1 to 2 hours, and thermally oxidize to obtain a one-dimensional ZnO nanometer film. Needle.

[0017] The scanning electron microscope SEM photos of each product obtained are shown in Figure 5, Figure 6, Figure 7, and Figure 8. Figure 5, Figure 6, Figure 7, and Figure 8 are respectively when the thermal oxidation temp...

Embodiment 3

[0018] Example 3: Preparation of one-dimensional γ-Fe 2 o 3 nanoneedle material

[0019] (1) The pH value of the preparation is 2.0, and the concentration of each component is ferrous chloride 380gl -1 , boric acid 20gl -1 , saccharin 5gl -1 , sodium fluoride 2.5gl -1 (2) Using the pulse electrodeposition method, the pulse electrodeposition parameters: the output pulse frequency f is 100Hz, the duty ratio r is 10%, the positive pulse working current is 0.5A, and the negative pulse working current is 0.3A. Electrodeposit a layer of nanocrystalline Fe film on the surface of the substrate; (3) Heat the nanocrystalline Fe film in air at 700°C, 800°C, and 900°C for 1 to 2 hours, and thermally oxidize it to obtain one-dimensional γ-Fe 2 o 3 nanoneedles.

[0020] The scanning electron microscope SEM pictures of each obtained product are shown in Figure 9, Figure 10, and Figure 11. Figure 9, Figure 10, and Figure 11 are products when the thermal oxidation temperature is 700°C, ...

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Abstract

The invention discloses a preparing method of one-dimensional metallic oxide nanometer needle material, which comprises the following: setting copper, copper alloy, Ni, Ni group alloy, rustless steel or iron plate as base plate; placing base plate in electrodepositing liquid; adopting routine pulse electrodepositing method; electrodepositing one deck metal Cu nanocrystalline film or metal Zn nanocrystalline film or metal Fe nanocrystalline film; thermo-oxygenizing metal Cu, Zn and Fe nanocrystalline film under 700-1000 deg.c, 300-600 deg.c and 700-900 deg.c separately at 1-2 h; getting the product.

Description

technical field [0001] The invention relates to a preparation method of a one-dimensional metal oxide nanoneedle material, which belongs to the field of nanomaterials and nanotechnology. Background technique [0002] With the rapid development of science and technology, people need to conduct in-depth research on some microscopic phenomena, such as nanoscale structures, physical and chemical properties, and low-dimensional related quantum scale effects. In addition, the miniaturization of devices puts forward higher requirements for new functional materials. Since the discovery of carbon nanotubes, there has been an upsurge in the study of low-dimensional nanostructure materials worldwide, which has brought material research into a new field. Among all kinds of nanomaterials, one-dimensional nanomaterials exhibit very different characteristics from traditional three-dimensional systems in terms of physical and chemical properties due to the limitation in dimension, such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/06C01G9/02C01G3/02B32B3/00
Inventor 潘春旭刘曰利
Owner WUHAN UNIV
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