期刊
JOURNAL OF ELECTROCERAMICS
卷 16, 期 1, 页码 29-34出版社
SPRINGER
DOI: 10.1007/s10832-006-3904-0
关键词
self-organization; titanium dioxide; nanotube; oxide dissolution
The formation of self-organized porous titania nanotubes is achieved by electrochemical anodization under specific experimental conditions. In present work, the formation of porous titania nanotubes on titanium substrates is investigated in several SO42-/F- based electrolytes. The presence of some non-porous layers covering the porous layers and accompanying the pore growth is observed. We discuss in details the influence of different electrolyte composition on the structure of self-organized porous layers, investigate the conditions for ideal pore growth. SEM investigations and XRD, AES and EDX surface analyses are carried out to characterize the self-organized porous layers. The results show that using SO42-/F- electrolytes with different cations can drastically influence the final morphology of the self-organized porous nanotubes. We furthermore show that the nanotubes consist of TiO2 and that they remain unchanged when annealed.
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