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Synthesis and Photoelectrochemical Properties of Self-Organized Anodic TiO2 Nanotube Arrays

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Abstract:

Self-organized nanotube arrays were prepared by a facile two-electrode electrochemical anodization on pure Ti in a 0.5wt% NH4F aqueous electrolyte. The surface morphology, structure, optical and photoelectrochemical behaviors of the nanotubular films were considered. The as-formed nanotubes are highly ordered with ~700nm in length and the average tube diameter is about 90nm. By annealing the initially amorphous films at different temperatures, the importance of the crystalline nature is confirmed. The photoelectrochemical properties are investigated and the highest photocurrent of 2.297 mA/cm2 is obtained under AM1.5 100 mW/cm2 illumination at 0.6 V (vs Ag/AgCl).

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Periodical:

Advanced Materials Research (Volumes 219-220)

Pages:

1329-1332

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.219-220.1329

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Online since:

March 2011

Authors:

Shi Kai Liu, Wei Cui, Hai Bin Yang, Zheng Xin Li, Wen Jun Zou

Keywords:

Anodization, Nanotube Array, Photoelectrochemical Behavior, TiO2

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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