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Aluminum oxide formworks for preparing nanometer material and producing method thereof

An alumina template and nanomaterial technology, applied in anodizing, electrolytic coating, surface reaction electrolytic coating, etc., can solve problems such as unfavorable deviceization of nanomaterials, difficult relationship between physical properties and diameter of nanomaterials, etc., and achieve pore size change. Large-scale, easy-to-use effects

Inactive Publication Date: 2005-03-09
INST OF SOLID PHYSICS ACAD SINICA
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Problems solved by technology

[0003] However, as for the alumina template, the currently applied situation is that on the same alumina template, the pore diameters of the nanopores are consistent, which brings difficulties to the study of the relationship between the physical properties of nanomaterials and their diameters. Conducive to deviceization of nanomaterials
Not only that, the research results in the past ten years have shown that although scientists can obtain alumina templates with different nanopore diameters by adjusting the anodizing voltage, acid concentration, and temperature, according to existing methods, on the same template It is not possible to obtain nanopores of different pore sizes

Method used

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  • Aluminum oxide formworks for preparing nanometer material and producing method thereof
  • Aluminum oxide formworks for preparing nanometer material and producing method thereof
  • Aluminum oxide formworks for preparing nanometer material and producing method thereof

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Embodiment Construction

[0021] The alumina template in this embodiment has different regions on one template, the density of the nanopores 7 in all regions is the same, the apertures of the nanopores 7 in the same region are the same, and the apertures of the nanopores 7 in different regions different.

[0022] Referring to the accompanying drawings, the different areas can be the central circle area divided by different radii with the center of the template as the center, and the annular areas outside the central circle. Different regions can also be divided in other forms as required.

[0023] figure 1 As shown in , the area in this embodiment is the central circle area 1 divided by different radii with the center of the template as the center, the inner ring area 2 and the outer ring area 3 other than the central circle area 1, wherein each area The nanopores have the same density in the same region, the nanopores in the same region have the same diameter, and the nanopores in different regions ...

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Abstract

An aluminium oxide template used for preparing the nano material features that on a template there are different regions, the nano holes in all regions have same density, the nano holes in a region have same diameter, and different regions have different hole diameters. Its preparing process is used of synchronous method to remove barrier layer, that is, a template is divided into several regions and the barrier layer in different regions is gradually removed by phosphoric acid solution.

Description

Technical field: [0001] The invention relates to an alumina template used for preparing nanometer materials and a preparation method of the template. Background technique: [0002] With the continuous development of science and technology, many new sciences are constantly emerging. Nanomaterials is one example. The preparation of nanomaterials is the basis for the practical application of nanomaterials. At present, the methods used to prepare nanomaterials are: template method, vapor deposition method, photolithography method, liquid phase method and so on. The template method is one of the most basic methods. At present, there are about four mature templates: carbon tubes, ion beam etched carbon films, biological micromicelles and alumina templates. The alumina template has become one of the most widely used templates due to its good mechanical strength and adjustable pore aspect ratio (pore length / pore diameter). It is a nano-hole array system obtained by anodizing 99...

Claims

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Application Information

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IPC IPC(8): C01B31/02C25D11/04C25D11/24
Inventor 庞岩涛张立德孟国文单文钧高学云赵爱武张俊喜
Owner INST OF SOLID PHYSICS ACAD SINICA
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