Electrochemical formation of self-organized zirconium titanate nanotube multilayers

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• 作者：Kouji Yasuda ; Patrik Schmuki
• 关键词：Multilayers ; Nanotubes ; Zirconium titanate ; Alloy ; Self-organized
• 刊名：Electrochemistry Communications
• 出版年：2007
• 期刊代码：29_13882481
• 类别：ch
• 出版时间：April 2007
• 卷：9
• 期：4
• 页码：615-619
• 文件大小：633 K

摘要

The present work reports the formation of multilayers of self-organized zirconium titanate nanotubes by anodizing a Ti–35Zr alloy in 1 M (NH₄)₂SO₄ + 0.5 wt%NH₄F electrolytes. It was found that multilayers consisting of different diameter nanotubes can be produced by repeated anodization steps under different conditions. Formation of new nanotubes starts in the gaps between the existing tubes. The process allows the formation of multilayer stacks consisting of layers of several 100 nm in length and adjustable nanotube diameters in a range from 50 to 180 nm.