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Nanostructural characterization of large-scale porous alumina fabricated via anodizing in arsenic acid solution

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Title: Nanostructural characterization of large-scale porous alumina fabricated via anodizing in arsenic acid solution
Authors: Akiya, Shunta Browse this author
Kikuchi, Tatsuya Browse this author →KAKEN DB
Natsui, Shungo Browse this author
Suzuki, Ryosuke O. Browse this author →KAKEN DB
Keywords: Aluminum
Arsenic acid
Porous alumina
Issue Date: 1-May-2017
Publisher: Elsevier
Journal Title: Applied surface science
Volume: 403
Start Page: 652
End Page: 661
Publisher DOI: 10.1016/j.apsusc.2017.01.243
Abstract: Anodizing of aluminum in an arsenic acid solution is reported for the fabrication of anodic porous alumina. The highest potential difference (voltage) without oxide burning increased as the temperature and the concentration of the arsenic acid solution decreased, and a high anodizing potential difference of 340 V was achieved. An ordered porous alumina with several tens of cells was formed in 0.1-0.5 M arsenic acid solutions at 310-340 V for 20 h. However, the regularity of the porous alumina was not improved via anodizing for 72 h. No pore sealing behavior of the porous alumina was observed upon immersion in boiling distilled water, and it may be due to the formation of an insoluble complex on the oxide surface. The porous alumina consisted of two different layers: a hexagonal alumina layer that contained arsenic from the electrolyte and a pure alumina honeycomb skeleton. The porous alumina exhibited a white photoluminescence emission at approximately 515 nm under UV irradiation at 254 nm.
Rights: ©2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 菊地 竜也

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