Ultla-high density single nanometer-scale anodic alumina nanofibers fabricated by pyrophosphoric acid anodizing

• Kikuchi, Tatsuya

• Nishinaga, Osamu

• Nakajima, Daiki

• Kawashima, Jun

• Natsui, Shungo

• Sakaguchi, Norihito

• Suzuki, Ryosuke O.

書誌事項

タイトル別名

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

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.

収録刊行物

• Scientific reports

  Scientific reports 4 7411-, 2014-12-10

  Nature Publishing Group

キーワード

• Multidisciplinary

詳細情報

• CRID: 1050001339017972608
• NII論文ID: 120005530848
• DOI: 10.1038/srep07411
• HANDLE: 2115/57810
• ISSN: 20452322
• Web Site: https://www.nature.com/articles/srep07411.pdf
• Web Site: https://www.nature.com/articles/srep07411
• 本文言語コード: en
• 資料種別: journal article
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