Formation of anodic TiO2 nanotube or nanosponge morphology determined by the electrolyte hydrodynamic conditions
Sanchez-Tovar R, Lee K, Garcia-Anton J, Schmuki P (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 26
Pages Range: 1-4
DOI: 10.1016/j.elecom.2012.09.041
Abstract
The present work studies the effect of hydrodynamic conditions on the growth of anodic TiO2 nanostructures on Ti in a glycerol/water/NH4F electrolyte. Parameter screening for fluoride content, anodization voltage and rotation rate (Reynolds number) of a rotating anode showed that two distinctly different TiO2 morphologies could be obtained: the classic ordered nanotubes or a nanoscale sponge layer. We present conditions for TiO2 sponge formation and growth to several micrometers of thickness, and show that in specific cases sponge layers can be superior to tube morphologies, as illustrated for photoelectrochemical water-splitting under standard AM 1.5 conditions.
Authors with CRIS profile
Kiyoung Lee
Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)
Patrik Schmuki
Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)
Additional Organisation(s)
Involved external institutions
Spain (ES)How to cite
APA:
Sanchez-Tovar, R., Lee, K., Garcia-Anton, J., & Schmuki, P. (2013). Formation of anodic TiO2 nanotube or nanosponge morphology determined by the electrolyte hydrodynamic conditions. Electrochemistry Communications, 26, 1-4. https://dx.doi.org/10.1016/j.elecom.2012.09.041
MLA:
Sanchez-Tovar, Rita, et al. "Formation of anodic TiO2 nanotube or nanosponge morphology determined by the electrolyte hydrodynamic conditions." Electrochemistry Communications 26 (2013): 1-4.
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