Formation of a Titanium Dioxide Nanotube Array

Starting from the naturally occurring structure of porous aluminum oxide, a polymer mold suitable for the formation of titanium dioxide nanotubes was obtained. The tubular structure was formed by electrochemical deposition in the mold. After dissolution of the polymer, titanium dioxide nanotubes wer...

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Bibliographic Details
Published inLangmuir Vol. 12; no. 6; pp. 1411 - 1413
Main Author Hoyer, Patrick
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 20.03.1996
Subjects
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Scanning electron microscopy
Heat treatment
Anatase
Transition metal Compounds
Polycrystal
Methyl methacrylate polymer
Tubular shape
Nanostructure
Electroplating
Experimental study
Porous material
Titanium Oxides
Preparation
Reaction mechanism
Crystalline structure
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Summary:Starting from the naturally occurring structure of porous aluminum oxide, a polymer mold suitable for the formation of titanium dioxide nanotubes was obtained. The tubular structure was formed by electrochemical deposition in the mold. After dissolution of the polymer, titanium dioxide nanotubes were obtained and characterized. The “as deposited” TiO2 tubes were amorphous, but polycrystalline anatase samples of the same structure were obtained after heat treatment. The inner diameter of the tubes decreased from about 100 to 70 nm during the crystallization. A mechanism for the electrochemical deposition is proposed. Furthermore, the preparation procedure could also be applied to other semiconducting materials.
Bibliography:Abstract published in Advance ACS Abstracts, March 1, 1996.
istex:E368A5F61ED5CA8BDC05CEF73C694292C17FD762
ark:/67375/TPS-LCFMGSGW-4
ISSN:0743-7463
1520-5827
DOI:10.1021/la9507803