Journal
MATERIALS RESEARCH BULLETIN
Volume 57, Issue -, Pages 116-120Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2014.05.037
Keywords
Oxides; Nanostructures; Microporous materials; SEM
Categories
Funding
- National Natural Science Foundation of China [61171043, 51077072, 51377085, 51102271]
- Natural Science Foundation of Shanghai [11ZR1436300]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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Fabrication of ordered porous anodic alumina (PAA) with ultra-large interpore distances (D-int) is still a great challenge because of the occurrence of the breakdown or burning during anodization under ultrahigh voltages. Herein, the anodizing of aluminum at ultrahigh voltages (600-800 V) is realized in a series of mixed electrolytes consisting of solutions of citric acid in ethylene glycol and aqueous phosphoric acid solutions. Ordered FAA and patterned Al substrate with ultra-large D-int (1400-2036 nm) have been fabricated by two-step anodization on unpolished substrates successfully. (C) 2014 Elsevier Ltd. All rights reserved.
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