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

被引：113

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

页码：538 / 541

页数：4

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