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

Electrochemistry Communications Elsevier

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) (LKO) Patrik Schmuki Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) (LKO)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM)

Involved external institutions

Polytechnic University of Valencia / Universidad Politécnica de Valencia ES 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://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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