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Gradient porous alumina films with different pore distributions by anodization of aluminum

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Abstract

In this paper, gradient porous alumina films with different pore distributions are fabricated by asymmetrical anodization of Al foils. When an insulating baffle is inserted close to the anode, depending on the shape of the baffle, the current density distribution on the Al foils can be varied. Two kinds of porous alumina films with different pore distributions are fabricated by this method. This bottom-up approach of asymmetrical anodization of Al foil provides us with a low-cost method to fabricate large-size gradient porous structures with different pore distributions.

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Authors and Affiliations

  1. Department of Physics, Nanjing Normal University, Nanjing, 210046, People’s Republic of China

    Ling Yao, Yong-Hong Ye & Li Yang

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  1. Ling Yao
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  2. Yong-Hong Ye
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  3. Li Yang
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Correspondence to Yong-Hong Ye.

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Yao, L., Ye, YH. & Yang, L. Gradient porous alumina films with different pore distributions by anodization of aluminum. Appl. Phys. A 116, 1915–1919 (2014). https://doi.org/10.1007/s00339-014-8352-0

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  • DOI: https://doi.org/10.1007/s00339-014-8352-0

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