Self-organized Anodic TiO2-nanotubes in Fluoride Free Electrolytes
ECS Transactions(2008)
摘要
The conventional approach for the formation of highly self-organized nanotube layers is based on anodization of titanium in fluoride containing electrolytes. In the present work we demonstrate that also chloride ions in a suitable organic electrolyte can be used to grow organized nanotube layers. The results show, that under specific electrochemical conditions the growth process can change from a previously reported rapid breakdown anodization mechanism (that leads to disordered nanotube bundles) to a self-organized nanotubular growth mechanism. Under these conditions the nanotubes exhibit the key characteristics of self-ordered tubes (closed tube bottoms, regular dimple structures on the metallic substrate and a linear dependence of the tube diameter on the applied potential).
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关键词
self organization,titanium
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