材料科学
阳极氧化
纳米管
基质(水族馆)
图层(电子)
纳米技术
粘附
氧化物
电解质
阳极
化学工程
超级电容器
复合材料
碳纳米管
电化学
电极
冶金
铝
化学
物理化学
工程类
地质学
海洋学
作者
Dongliang Yu,Xufei Zhu,Zhen Xu,Xiaomin Zhong,Qunfang Gui,Ye Song,Shaoyu Zhang,Xiaoyuan Chen,Dongdong Li
摘要
The weak adhesion of anodic TiO2 nanotube arrays (TNTAs) to the underlying Ti substrate compromises many promising applications. In this work, a compact oxide layer between TNTAs and Ti substrate is introduced by employing an additional anodization in a fluoride-free electrolyte. The additional anodization results in an about 200 nm thick compact layer near the nanotube bottoms. Scratch test demonstrates that the critical load of TNTAs with the compact oxide layer is a more than threefold increase in comparison with those without the compact layer. Moreover, this facile method can also improve the photoactivity and supercapacitor performances of TNTAs markedly.
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