Ultrafast growth of highly ordered anodic TiO2 nanotubes in lactic acid electrolytes.
Ultrafast growth of highly ordered anodic TiO2 nanotubes in lactic acid electrolytes.
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DOI：
10.1021/ja301892g
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发表时间：
2012-07
影响因子：
15
通讯作者：
Seulgi So;Kiyoung Lee;P. Schmuki
中科院分区：
文献类型：
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作者：
Seulgi So;Kiyoung Lee;P. Schmuki
在目前的工作中，我们表明，全功能的自组织TiO（2）纳米管层可以电化学生长前所未有的增长速度，如果乳酸（LA）作为添加剂在阳极氧化过程中。添加LA的主要效果是其允许在比不含LA的情况显著更高的阳极化电压下进行纳米管生长，并且这没有电介质氧化物击穿（“燃烧”）。因此，例如，适用于染料敏化太阳能电池（DSSC）的15 μm管厚的纳米管层可以在45秒内生长，适用于水分解的7 μm管可以在25秒内生长。
In the present work, we show that fully functional self-organized TiO(2) nanotube layers can be electrochemically grown with an unprecedented growth rate if lactic acid (LA) is used as an additive during anodization. The main effect of LA addition is that it allows performing nanotube growth at significantly higher anodization voltage than in the LA free case, and this without dielectric oxide breakdown ("burning"). As a result, for example, 15 μm tube thick nanotube layers, suitable for a use in dye-sensitized solar cells (DSSCs) can be grown in 45 s and 7 μm tubes suitable for water splitting can be grown in 25 s.