Self-Ordering Behavior of Anodic Porous Alumina via Selenic Acid Anodizing

• Kikuchi, Tatsuya

• Nishinaga, Osamu

• Natsui, Shungo

• Suzuki, Ryosuke O.

抄録

The self-ordering behavior of anodic porous alumina that was formed by anodizing in selenic acid elec-trolyte (H2SeO4) at various concentrations and voltages was investigated with SEM and AFM imaging.A high purity aluminum foil was anodized in 0.1-3.0 M selenic acid solutions at 273 K and at constantcell voltages in the range of 37 to 51 V. The regularity of the cell arrangement increased with increas-ing anodizing voltage and selenic acid concentration under conditions of steady oxide growth withoutburning. Anodizing at 42-46 V in 3.0 M selenic acid produced highly ordered porous alumina. By selec-tive dissolution of the anodic porous alumina, highly ordered convex nanostructures of aluminum withdiameters of 20 nm and heights of 40 nm were exposed at the apexes of each hexagonal dimple array.Highly ordered anodic porous alumina with a cell size of 102 nm from top to bottom can be fabricatedby a two-step selenic acid anodizing process, that includes the first anodizing step, the selective oxidedissolution, and the second anodizing step.

収録刊行物

• Electrochimica Acta

  Electrochimica Acta 137 728-735, 2014-08-10

  Elsevier

キーワード

• Aluminum
• Anodizing
• Anodic Porous Alumina
• Selenic Acid

詳細情報

• CRID: 1050282813993531136
• NII論文ID: 120005455908
• DOI: 10.1016/j.electacta.2014.06.078
• HANDLE: 2115/56542
• ISSN: 00134686
• Web Site: https://api.elsevier.com/content/article/PII:S0013468614012602?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S0013468614012602?httpAccept=text/plain
• 本文言語コード: en
• 資料種別: journal article
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