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http://dx.doi.org/10.5229/JKES.2011.14.4.219

Extending the Self-ordering Regime of High-field Anodization by Using an Electrolyte Additive  

Kim, Min-Woo (Department of Industrial Engineering Chemstry, Pukyong National University)
Park, Seong-Soo (Department of Industrial Engineering Chemstry, Pukyong National University)
Sim, Seong-Ju (Battery Research Center, Korea Electrotechnology Research Institute)
Kang, Tae-Ho (KOST Corporation)
Shin, Yong-Bong (KOST Corporation)
Ha, Yoon-Cheol (Battery Research Center, Korea Electrotechnology Research Institute)
Publication Information
Journal of the Korean Electrochemical Society / v.14, no.4, 2011 , pp. 219-224 More about this Journal
Abstract
Using an electrolyte additive, we examined, for the first time, a novel self-ordering regime of 160~200 V in high-field anodization which had been used for a fast fabrication of self-ordered anodic alumina nanotemplate. FE-SEM analyses conducted after the high-field anodization, pulse detachment and chemical widening of pores showed the relationship of 2.2 nm/V in this voltage range, which was identical to the previously reported one in the literature. The growth rate of the alumina film was about 60 um/hr, which was 30 times faster than that of phosphoric acid mild anodization. This study provides a new process for the fast fabrication of nanotemplates with interpore distances larger than 300 nm.
Keywords
Anodic alumina; Nanotemplate; High-field anodization; Self-ordering;
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