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Less known facts and findings about TiO2 nanotubes

Abstract

Anodic TiO2 nanotubes that are grown on Ti substrates by a simple anodization in various types of fluoride containing electrolytes have attracted scientific and technological interest due to their wide potential applications, and therefore, numerous research efforts have been dedicated to these self-ordered oxide structures in the past decade. The present mini-review highlights less known but important aspects, such as the formation of spaced nanotubes with adjustable interspacing that is achieved in a few specific organic electrolytes, and strong effects of the metallic Ti substrate which significantly affect the growth of the tubes. We discuss the formation of oxide nanotubes grown from adequately alloyed substrates and noble metal nanoparticle decoration of tubes. We describe how specific heat-treatment can introduce nanotwinned boundary in oxide tube walls of single-walled nanotubes obtained by a de-coring process. All the facts and findings were studied in recent years and bear a high potential to upgrade TiO2 nanotubes with more optimized functionalities towards their applications.

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Article information


Submitted
13 Jan 2020
Accepted
13 Mar 2020
First published
18 Mar 2020

Nanoscale, 2020, Accepted Manuscript
Article type
Minireview

Less known facts and findings about TiO2 nanotubes

H. Tsuchiya and P. Schmuki, Nanoscale, 2020, Accepted Manuscript , DOI: 10.1039/D0NR00367K

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