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Type: Journal article
Title: Preparation of porous anodic alumina with periodically perforated pores
Author: Losic, D.
Losic Jr, D.
Citation: Langmuir, 2009; 25(10):5426-5431
Publisher: American Chemical Society
Issue Date: 2009
ISSN: 0743-7463
Statement of
Dusan Losic and Dusan Losic, Jr.
Abstract: Anodization of aluminum is an excellent nonlithographic alternative to conventional fabrication approaches for low-cost and large-scale synthesis of a variety of nanostructured materials. In this work, the preparation of anodic alumina oxide (AAO) with unique three-dimensional (3D) porous structures that consist of periodically perforated nanopores is reported. The fabrication method combines electrochemical anodization of aluminum and chemical etching. The key feature of this process is cyclic anodization where an oscillatory current signal was applied to create AAO with periodically shaped pore structures. Spatially specific dissolution of the pore walls was directed by modulated pore structures during chemical etching to generate hexagonally ordered arrays of holes with periodic distribution across the pore length.
Rights: © 2009 American Chemical Society
RMID: 0020127874
DOI: 10.1021/la804281v
Grant ID:
Appears in Collections:Chemical Engineering publications

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