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Fabrication of self-ordered porous alumina via anodizing in sulfate solutions
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Title: | Fabrication of self-ordered porous alumina via anodizing in sulfate solutions |
Authors: | Kondo, Ryunosuke Browse this author | Kikuchi, Tatsuya Browse this author →KAKEN DB | Natsui, Shungo Browse this author →KAKEN DB | Suzuki, Ryosuke O. Browse this author →KAKEN DB |
Keywords: | Aluminum | Anodizing | Sodium hydrogen sulfate | Porous materials | Self-ordering | Structural |
Issue Date: | 15-Nov-2016 |
Publisher: | Elsevier |
Journal Title: | Materials letters |
Volume: | 183 |
Start Page: | 285 |
End Page: | 289 |
Publisher DOI: | 10.1016/j.matlet.2016.07.109 |
Abstract: | Self-ordered porous alumina was fabricated via anodizing in an acid salt electrolyte solution, sodium hydrogen sulfate (NaHSO4). High-purity aluminum specimens were anodized in a NaHSO4 solution under various operating conditions with adjusted concentrations, temperatures, applied voltages, and times. Self-ordering was achieved via NaHSO4 anodizing at appropriate applied voltages ranging from 20 to 28 V, and ordered cell arrangements with the cell size of 55-77 nm were successfully fabricated. Sulfur atoms originating from the electrolyte anions were incorporated into the ordered porous alumina. A honeycomb distribution consisting of a thick outer layer with a high concentration of sulfur and a very thin inner skeleton with a relatively low concentration sulfur was formed via NaHSO4 anodizing. Our results suggested that there are now many electrolyte options for the fabrication of self-ordered porous alumina with a wide range of nanosizes. |
Rights: | © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/71995 |
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)
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Submitter: 菊地 竜也
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