Pore diameter control of anodic aluminum oxide with ordered array of nanopores

被引：53

作者：

Bai, Allen ^{[1
]}

Hu, Chi-Chang ^{[2
]}

Yang, Yong-Feng ^{[1
]}

Lin, Chi-Cheng

机构：

[1] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu 30013, Taiwan

[2] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu 401, Taiwan

来源：

ELECTROCHIMICA ACTA | 2008年 / 53卷 / 05期

关键词：

Al-1050; anodic aluminum oxides; pore diameter control; fractional factorial design;

D O I：

10.1016/j.electacta.2007.09.039

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Highly uniform. self-ordered anodic aluminum oxide (AAO) with an ordered nanoporous array can be effectively formed from industrially pure (99.5%) aluminum sheets through an anodizing program in a mixture solution of sulfuric and oxalic acids. The influences of anodizing variables. such as applied voltage. solution temperature, oxalic acid concentration, agitation rate, and sulfuric acid concentration, on the average pore diameter of AAO were systematically investigated using fractional factorial design (FFD). The applied voltage, and sulfuric acid concentration were found to be the key factors affecting the pore diameter of AAO films in the FFD study. The pore diameter of AAO is regularly increased from ca. 50 to 150 nm when the applied voltage and the concentration of sulfuric acid are gradually increased from 53 to 80 V and from 3.5 to 8 M, respectively. Fine tuning of the pore diameter for AAO films with an ordered, nanoporous, arrayed structure from industrially pure aluminum sheets can be achieved. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2258 / 2264

页数：7

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