• Open Access

Through-Hole, Self-Ordered Nanoporous Oxide Layers on Titanium, Niobium and Titanium–Niobium Alloys in Aqueous and Organic Nitrate Electrolytes

Authors

  • Robin Kirchgeorg,

    1. Department of Material Science WW4-LKO, University of Erlangen-Nuremberg, Martensstraße 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
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  • Wei Wei,

    1. Department of Material Science WW4-LKO, University of Erlangen-Nuremberg, Martensstraße 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
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  • Kiyoung Lee,

    1. Department of Material Science WW4-LKO, University of Erlangen-Nuremberg, Martensstraße 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
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  • Seugli So,

    1. Department of Material Science WW4-LKO, University of Erlangen-Nuremberg, Martensstraße 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
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  • Prof. Dr. Patrik Schmuki

    Corresponding author
    1. Department of Material Science WW4-LKO, University of Erlangen-Nuremberg, Martensstraße 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
    • Department of Material Science WW4-LKO, University of Erlangen-Nuremberg, Martensstraße 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582
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Abstract

original image

Leaky layers: Several 10 μm-thick, highly aligned, porous structures of titanium dioxide, niobium pentoxide and mixed oxides can be grown anodically in nitrate-containing electrolytes with channel diameters in the range of 10–20 nm. Depending on the substrate, the electrochemical growth parameters need to be optimized to achieve a high degree of long-range order.

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