Investigation of TiO2 Nanotube Electrodes: Fabrication, Annealing and Electrochemical Properties

Article Preview

Abstract:

Highly-ordered titania nanotube electrodes were fabricated by electrochemical anodization of pure titanium foil in potassium fluoride electrolyte. The nanotube electrodes were then annealed at different temperatures (300°C,500°C and 600°C) in air for 3 hours. The morphology and crystallinity of nanotube arrays were studied by SEM and XRD. The electrochemical properties of titania nanotube electrodes before and after annealed under different temperatures were investigated by means of cyclic voltammetry with 10mM K3[Fe(CN)6] as an electrolyte at a sweep rate of 0.1V/s.A pair of oxidation/reduction peaks was observed during the test. The results show that the higher annealing temperature, the larger oxidation/reduction peak separation. Photocurrent response was also measured in 0.01M Na2SO4 under the UV-Vis illumination.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volumes 610-613)

Pages:

1143-1149

Citation:

Online since:

January 2009

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2009 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation: