Size-effects in TiO2 nanotubes: Diameter dependent anatase/rutile stabilization

被引：111
作者：
Bauer, Sebastian [1 ]
Pittrof, Andreas [1 ]
Tsuchiya, Hiroaki [2 ]
Schmuki, Patrik [1 ]
机构：
[1] Univ Erlangen Nurnberg, Dept Mat Sci, D-91058 Erlangen, Germany
[2] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, Suita, Osaka 5650871, Japan
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2011年 / 13卷 / 06期
关键词：
TiO2; nanotubes; Anatase; Rutile; Phase stabilization; Annealing; Transition; TITANIUM-DIOXIDE; NANOCRYSTALLINE TIO2; PHASE-STABILITY; THIN-FILMS; CRYSTALLIZATION; ELECTROLYTES; ANODIZATION; BEHAVIOR; GROWTH; ARRAYS;
D O I：
10.1016/j.elecom.2011.03.003
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In the present work we demonstrate that amorphous anodic TiO2 nanotubes show upon annealing a tube diameter dependent phase stabilization. For tube diameters <30 rim the formation of ruffle is observed while for larger diameters anatase is formed. This effect is induced by the presence of the metallic substrate-in its absence all tube diameters are converted to anatase. As the nature of the stable phase strongly affects electronic, optical and biomedical properties of TiO2, the finding is of a high significance for many applications of TiO2 nanotubes. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：538 / 541
页数：4
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