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Ultra-High Density Single Nanometer-Scale Anodic Alumina Nanofibers Fabricated by Pyrophosphoric Acid Anodizing

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タイトル: Ultra-High Density Single Nanometer-Scale Anodic Alumina Nanofibers Fabricated by Pyrophosphoric Acid Anodizing
著者: Kikuchi, Tatsuya 著作を一覧する
Nishinaga, Osamu 著作を一覧する
Nakajima, Daiki 著作を一覧する
Kawashima, Jun 著作を一覧する
Natsui, Shungo 著作を一覧する
Sakaguchi, Norihito 著作を一覧する
Suzuki, Ryosuke O. 著作を一覧する
発行日: 2014年12月10日
出版者: Nature Publishing Group
誌名: Scientific reports
巻: 4
開始ページ: 7411
出版社 DOI: 10.1038/srep07411
抄録: Anodic oxide fabricated by anodizing has been widely used for nanostructural engineering, but the nanomorphology is limited to only two oxides: anodic barrier and porous oxides. Therefore, the discovery of an additional anodic oxide with a unique nanofeature would expand the applicability of anodizing. Here we demonstrate the fabrication of a third-generation anodic oxide, specifically, anodic alumina nanofibers, by anodizing in a new electrolyte, pyrophosphoric acid. Ultra-high density single nanometer-scale anodic alumina nanofibers (1010 nanofibers/cm(2)) consisting of an amorphous, pure aluminum oxide were successfully fabricated via pyrophosphoric acid anodizing. The nanomorphologies of the anodic nanofibers can be controlled by the electrochemical conditions. Anodic tungsten oxide nanofibers can also be fabricated by pyrophosphoric acid anodizing. The aluminum surface covered by the anodic alumina nanofibers exhibited ultra-fast superhydrophilic behavior, with a contact angle of less than 16, within 1 second. Such ultra-narrow nanofibers can be used for various nanoapplications including catalysts, wettability control, and electronic devices.
資料タイプ: article
URI: http://hdl.handle.net/2115/57810
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 菊地 竜也

 

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