A new and rapid approach to fabricating highly ordered nanoporous alumina films and integrated alumina nanotubule arrays with perfect hexagonal structures (see Figure and inside cover) is described. By using high-field anodization in a sulfuric acid solution, high-quality self-ordered alumina membranes are produced in hours rather than days. This cost-effective approach to large-area ordered nanoporous membranes may find applications in diverse areas of nanotechnology.
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Wada et al. (2005) studied this question.
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