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Nishinaga O, Kikuchi T, Natsui S, et al. Rapid fabrication of self-ordered porous alumina with 10-/sub-10-nm-scale nanostructures by selenic acid anodizing. Sci Rep. 2013;3:2748doi: 10.1038/srep02748.
Nishinaga, O., Kikuchi, T., Natsui, S., & Suzuki, R. O. (2013). Rapid fabrication of self-ordered porous alumina with 10-/sub-10-nm-scale nanostructures by selenic acid anodizing. Scientific reports, 32748. https://doi.org/10.1038/srep02748
Nishinaga, Osamu, et al. "Rapid fabrication of self-ordered porous alumina with 10-/sub-10-nm-scale nanostructures by selenic acid anodizing." Scientific reports vol. 3 (2013): 2748. doi: https://doi.org/10.1038/srep02748
Nishinaga O, Kikuchi T, Natsui S, Suzuki RO. Rapid fabrication of self-ordered porous alumina with 10-/sub-10-nm-scale nanostructures by selenic acid anodizing. Sci Rep. 2013 Sep 25;3:2748. doi: 10.1038/srep02748. PMID: 24067318; PMCID: PMC3782885.
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Sci Rep. 2013 Sep 25;3:2748. doi: 10.1038/srep02748.

Rapid fabrication of self-ordered porous alumina with 10-/sub-10-nm-scale nanostructures by selenic acid anodizing.

Scientific reports

Osamu Nishinaga, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O Suzuki

Affiliations

  1. Faculty of Engineering, Hokkaido University, N13-W8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.

PMID: 24067318 PMCID: PMC3782885 DOI: 10.1038/srep02748

Abstract

Anodic porous alumina has been widely investigated and used as a nanostructure template in various nanoapplications. The porous structure consists of numerous hexagonal cells perpendicular to the aluminum substrate and each cell has several tens or hundreds of nanoscale pores at its center. Because the nanomorphology of anodic porous alumina is limited by the electrolyte during anodizing, the discovery of additional electrolytes would expand the applicability of porous alumina. In this study, we report a new self-ordered nanoporous alumina formed by selenic acid (H2SeO4) anodizing. By optimizing the anodizing conditions, anodic alumina possessing 10-nm-scale pores was rapidly assembled (within 1 h) during selenic acid anodizing without any special electrochemical equipment. Novel sub-10-nm-scale spacing can also be achieved by selenic acid anodizing and metal sputter deposition. Our new nanoporous alumina can be used as a nanotemplate for various nanostructures in 10-/sub-10-nm-scale manufacturing.

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