A freestanding membrane of highly ordered anodic ZrO2 nanotube arrays
A freestanding membrane of highly ordered anodic ZrO2 nanotube arrays
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DOI：
10.1088/0957-4484/20/10/105301
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发表时间：
2009-03
期刊：
影响因子：
3.5
通讯作者：
Yeonmi Shin;Seonghoon Lee
中科院分区：
文献类型：
--
作者：
Yeonmi Shin;Seonghoon Lee
本文演示了形成自组织和高度有序的氧化锆（ZrO 2）纳米管通过电化学阳极氧化与电抛光锆（Zr）基板在非水电解液（即乙二醇溶液含有少量的氟化铵（0.38重量%NH 4F）和1.79重量% H2O）。与水溶液相比，在非水溶液中生长的纳米管壁面更加光滑。此外，阳极氧化锆纳米管的高度规则的阵列实现了与电抛光的Zr基板，保证了均匀的氧化物纳米管的生长速率在下面的平坦的金属表面。通过将现有的自组织ZrO 2纳米管层从下面的掺杂-Zr金属分离，通过向其施加反向偏压来产生独立ZrO 2膜。
This paper demonstrates the formation of self-organized and highly ordered zirconium oxide (ZrO2) nanotubes via an electrochemical anodization with an electropolished zirconium (Zr) substrate in nonaqueous electrolytes (i.e. an ethylene glycol solution containing a small amount of ammonium fluoride (0.38 wt% NH4F) and 1.79 wt% H2O). Compared with aqueous electrolytes, nanotubes with much smoother wall surfaces were grown in nonaqueous electrolytes. In addition, highly regular arrays of anodic ZrO2 nanotubes were achieved with an electropolished Zr substrate which guaranteed the uniform growth rate of oxide nanotubes on the underlying flat metal surface. A freestanding ZrO2 membrane was produced through the detachment of the existing self-organized ZrO2 nanotubular layer from the underlying remaining-Zr metal by applying a reverse-bias voltage to it.