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Fabrication of anodic porous alumina via anodizing in cyclic oxocarbon acids

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Title: Fabrication of anodic porous alumina via anodizing in cyclic oxocarbon acids
Authors: Kikuchi, Tatsuya Browse this author →KAKEN DB
Nakajima, Daiki Browse this author
Kawashima, Jun Browse this author
Natsui, Shungo Browse this author →KAKEN DB
Suzuki, Ryosuke O. Browse this author →KAKEN DB
Keywords: Aluminum
Anodic porous alumina
Croconic acid
Rhodizonic acid
Issue Date: 15-Sep-2014
Publisher: Elsevier
Journal Title: Applied Surface Science
Volume: 313
Start Page: 276
End Page: 285
Publisher DOI: 10.1016/j.apsusc.2014.05.204
Abstract: The growth behavior of anodic porous alumina formed by anodizing in novel electrolyte solutions, the cyclic oxocarbon acids croconic and rhodizonic acid, was investigated for the first time. High-purity aluminum specimens were anodized in 0.1 M croconic and rhodizonic acid solutions at various constant current densities. An anodic porous alumina film with a cell size of 200–450 nm grew uniformly on an aluminum substrate by rhodizonic acid anodizing at 5–40 A m−2, and a black, burned oxide was formed at higher current density. The cell size of the porous alumina increased with current density and corresponding anodizing voltage. Anodizing in croconic acid at 293 K caused the formation of thin anodic porous alumina films as well as black, thick burned oxides. The uniformity of the porous alumina improved by increasing the temperature of the croconic acid solution, and anodic porous alumina films with a uniform film thickness were successfully obtained. Our experimental results showed that the cyclic oxocarbon acids croconic and rhodizonic acid could be employed as a suitable electrolyte for the formation of anodic porous alumina films.
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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