Formation Mechanism of Lotus-root-shaped Nanostructure during Two-step Anodization
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- 作者：Rong Jin ; Haowen Fan ; Yuting Liu ; Wan Ma ; Hongyan Lu ; Peng Yang ; Weihua Ma ; maweihuacn@163.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：TiO2 nanotubes ; Anodization ; Lotus-root-shaped nanostructure ; Formation mechanism
- 刊名：Electrochimica Acta
- 出版年：2016
- 出版时间：10 January 2016
- 年：2016
- 卷：188
- 期：Complete
- 页码：421-427
- 全文大小：2832 K
文摘
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Under the same voltage, lotus-root-shaped nanostructure is found for the first time.
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New explanation for the lotus-root-shaped nanostructure is presented.
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The concave or patterned substrate fails to guide pore growth in second anodization. The anion contaminated layer (ACL) is formed near the residual concaves.
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Lotus-root-shaped nanostructure disappears with the disappearance of hexagonal ACL.