Modulation method for shape morphing of hole of anodic aluminum oxide template

A technology of anodized aluminum and modulation method, which is applied in the direction of anodic oxidation, electrolytic coating, surface reaction electrolytic coating, etc., can solve rare problems, and achieve the effect of simple implementation, low cost, and flexible and adjustable three-dimensional shape
CN101838834BInactive Publication Date: 2012-01-25SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Publication Date
2012-01-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a modulation method for shape morphing of a hole of an anodic aluminum oxide template, which comprises the following steps: I. removing grease and dirt of the surface of annealing-treated or untreated aluminium foil, and then carrying out electrochemical polishing treatment on the aluminium foil for later use; II. forming pit patterns on the surface of the aluminium foil by adopting an electrochemical oxidation method or a hard template mechanical pitting method; and III. carrying out noncontinuous oxidation and chambering on the aluminium foil the surface of which is provided with the pit patterns in an acid electrolyte to form various three-dimensional morphing-type aluminum oxide nanopore array structures by the combination control of electrolyte composition, electrolyte temperature, oxidation voltage, oxidation and chambering frequency and oxidation and chambering time. The modulation method uses existing equipment, has simple implementation and can manufacture various three-dimensional morphing shape-adjustable porous anodic aluminum oxide templates in manner of low cost and big area.
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Description

technical field

[0001] The invention relates to the field of electrochemical manufacturing of porous alumina templates, in particular to an anodized alumina template for preparing a three-dimensional gradient nano-hole whose internal shape can be adjusted and a manufacturing method thereof. Background technique

[0002] High-purity aluminum is anodized in an acidic electrolyte to obtain a porous alumina membrane. The nano-scale columnar pores of uniform size are arranged in parallel to the membrane surface, and the membrane cells where the nanopores are located are arranged in a hexagonal close-packed arrangement. It is a A typical self-organized nanomaterial. Alumina porous membrane has excellent chemical stability, high temperature resistance, insulation, and is transparent in visible and most infrared light regions. By selecting appropriate electrolyte and anodic oxidation parameters, aluminum oxide films with adjustable structural parameters and ordered pores can be obt...

Claims

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