Smooth anodic TiO2 nanotubes: annealing and structure

The influence of an annealing process on the structure and the composition of smooth high aspect ratio TiO2 nanotube layers, grown by anodization of Ti in viscous glycerol electrolytes containing fluorides, is reported. XRD and HRTEM measurements demonstrate that the as‐formed high aspect ratio TiO2...

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Veröffentlicht in:	Physica status solidi. A, Applications and materials science Applications and materials science, 2006-08, Vol.203 (10), p.R67-R69
Hauptverfasser:	Macak, Jan M., Aldabergerova, Saule, Ghicov, Andrei, Schmuki, Patrik
Format:	Artikel
Sprache:	eng
Schlagworte:	61.10.Nz 61.46.Fg 68.37.Lp 79.60.Jv 81.07.De 82.45.Yz Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Nanoscale materials and structures: fabrication and characterization Nanotubes Physics
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Zusammenfassung:	The influence of an annealing process on the structure and the composition of smooth high aspect ratio TiO2 nanotube layers, grown by anodization of Ti in viscous glycerol electrolytes containing fluorides, is reported. XRD and HRTEM measurements demonstrate that the as‐formed high aspect ratio TiO2 nanotubes have an amorphous structure that can be entirely transformed to single phase – anatase – upon thermal annealing at 450 °C for 3 hours. XPS and EDX analyses furthermore show that annealing process is accompanied with an elimination of fluoride ions (present in the structure after formation). (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:	1862-6300 0031-8965 1862-6319
DOI:	10.1002/pssa.200622214