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Issue 5, 2015
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Anodization control for barrier-oxide thinning and 3D interconnected pores and direct electrodeposition of nanowire networks on native aluminium substrates

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Abstract

Here we report a strategy for combining techniques for pore branching and barrier layer thinning to produce 3D porous anodized aluminum oxide films with direct ohmic contact to the native aluminum. This method provides an example of a rationally designed template which need not be removed from the aluminum, but which is also not constrained to traditional 2D pore geometry. We first demonstrate the barrier layer removal and pore branching techniques independently, and then combine them to produce free standing arrays of interconnected Ni nanostructures. Nickel nanostructures are deposited directly onto the aluminum to demonstrate the success of the structural modification, and showcase the potential for these films to be used as templates. This approach is the first to demonstrate the design and execution of multiple pore modification techniques in the same membrane, and demonstrates the first directly deposited 3D structures on aluminum substrates.

Graphical abstract: Anodization control for barrier-oxide thinning and 3D interconnected pores and direct electrodeposition of nanowire networks on native aluminium substrates

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Publication details

The article was received on 19 Sep 2014, accepted on 18 Dec 2014 and first published on 05 Jan 2015


Article type: Paper
DOI: 10.1039/C4CP04211E
Citation: Phys. Chem. Chem. Phys., 2015,17, 3873-3879
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    Anodization control for barrier-oxide thinning and 3D interconnected pores and direct electrodeposition of nanowire networks on native aluminium substrates

    E. Gillette, S. Wittenberg, L. Graham, K. Lee, G. Rubloff, P. Banerjee and S. B. Lee, Phys. Chem. Chem. Phys., 2015, 17, 3873
    DOI: 10.1039/C4CP04211E

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