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Influence of Anodic Conditions on Self-ordered Growth of Highly Aligned Titanium Oxide Nanopores

V Vega1, Victor M Prida1*, M Hernández-Vélez23, E Manova2, P Aranda2, E Ruiz-Hitzky2 and Manuel Vázquez2

Author Affiliations

1 Depto. Física, Universidad Oviedo, Calvo Sotelo s/n, Oviedo, 33007, Spain

2 Instituto Ciencia Materiales Madrid (CSIC), Cantoblanco, Madrid, 28049, Spain

3 Depto. Física Aplicada C-XII, UAM, Cantoblanco, Madrid, 28049, Spain

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Nanoscale Research Letters 2007, 2:355-363  doi:10.1007/s11671-007-9073-5

Published: 4 July 2007


Self-aligned nanoporous TiO2templates synthesized via dc current electrochemical anodization have been carefully analyzed. The influence of environmental temperature during the anodization, ranging from 2 °C to ambient, on the structure and morphology of the nanoporous oxide formation has been investigated, as well as that of the HF electrolyte chemical composition, its concentration and their mixtures with other acids employed for the anodization. Arrays of self-assembled titania nanopores with inner pores diameter ranging between 50 and 100 nm, wall thickness around 20–60 nm and 300 nm in length, are grown in amorphous phase, vertical to the Ti substrate, parallel aligned to each other and uniformly disordering distributed over all the sample surface. Additional remarks about the photoluminiscence properties of the titania nanoporous templates and the magnetic behavior of the Ni filled nanoporous semiconductor Ti oxide template are also included.

Titanium oxides; Nanoporous materials; Electrochemical anodization