Self-organized porous WO3 formed in NaF electrolytes

被引:243
|
作者
Tsuchiya, H [1 ]
Macak, JM [1 ]
Sieber, I [1 ]
Taveira, L [1 ]
Ghicov, A [1 ]
Sirotna, K [1 ]
Schmuki, P [1 ]
机构
[1] Univ Erlangen Nurnberg, Dept Mat Sci, Inst Surface Sci & Corros, D-91058 Erlangen, Germany
关键词
tungsten oxide; nanoporous structure; self-organization; electrochemical anodization; NaF electrolyte;
D O I
10.1016/j.elecom.2005.01.003
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 show that by anodization of W in NaF electrolytes porous tungsten oxide layers can be formed under a range of experimental conditions. The morphology of the layers depends strongly on the NaF concentration as well as the formation potential. Under optimized electrochemical conditions self-organized porous tungsten oxide layers can be formed. The single pore openings are very regular and have an average pore diameter of 100 nm. (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:295 / 298
页数:4
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