Fabrication of self-ordered porous alumina via anodizing in sulfate solutions

被引：19

作者：

Kondo, Ryunosuke ^{[1
]}

Kikuchi, Tatsuya ^{[1
]}

Natsui, Shungo ^{[1
]}

Suzuki, Ryosuke O. ^{[1
]}

机构：

[1] Hokkaido Univ, Fac Engn, Kita Ku, N13-W8, Sapporo, Hokkaido 0608628, Japan

来源：

MATERIALS LETTERS | 2016年 / 183卷

关键词：

Aluminum; Anodizing; Sodium hydrogen sulfate; Porous materials; Self-ordering; Structural; STRUCTURAL FEATURES; INTERPORE DISTANCES; HARD ANODIZATION; ACID-SOLUTION; OXIDE; ARRANGEMENT; ARRAYS; FILMS;

D O I：

10.1016/j.matlet.2016.07.109

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：285 / 289

页数：5

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