High-Aspect-Ratio TiO2 Nanotube Layers via Galvanostatic Anodization in an Electrolyte Containing Lactic Acid

Alijani M, Sopha H, Ng S, Rodriguez-Pereira J, Macak JM (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Physica Status Solidi-Rapid Research Letters Wiley-VCH Verlag

Book Volume: 15

Article Number: 2100146

Journal Issue: 7

DOI: 10.1002/pssr.202100146

Abstract

1D TiO2 nanotubes (TNTs) produced by anodization of Ti have attracted significant research and technological interest due to their excellent properties suitable for numerous applications. A huge challenge that remains is to develop reproducible protocols for the synthesis of extremely high aspect ratio (HAR) TNT layers. A new strategy for the growth of HAR TNT layers based on galvanostatic anodization of Ti in NH4F/ethylene-glycol-based electrolyte with the addition of lactic acid (LA) is described. The results show that the addition of LA to the electrolyte can effectively prevent the dielectric breakdown during the anodization at elevated current densities. In comparison with the LA-free electrolyte, robust HAR TNT layers as thick as ≈44 μm can be produced within 15 min.

Authors with CRIS profile

Siow Woon Ng

Involved external institutions

Brno University of Technology (BUT) / Vysoké učení technické v Brně (VUT) CZ Czech Republic (CZ)

How to cite

APA:

Alijani, M., Sopha, H., Ng, S., Rodriguez-Pereira, J., & Macak, J.M. (2021). High-Aspect-Ratio TiO2 Nanotube Layers via Galvanostatic Anodization in an Electrolyte Containing Lactic Acid. Physica Status Solidi-Rapid Research Letters, 15(7). https://dx.doi.org/10.1002/pssr.202100146

MLA:

Alijani, Mahnaz, et al. "High-Aspect-Ratio TiO2 Nanotube Layers via Galvanostatic Anodization in an Electrolyte Containing Lactic Acid." Physica Status Solidi-Rapid Research Letters 15.7 (2021).

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