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Electrosynthesis of gradient TiO2 nanotubes and rapid screening using scanning photoelectrochemical microscopy
Sustainable Energy & Fuels ( IF 5.6 ) Pub Date : 2019/12/26 , DOI: 10.1039/c9se00895k
Florian Gelb 1, 2, 3, 4, 5 , Yu-Chien Chueh 1, 6, 7, 8, 9 , Neso Sojic 1, 6, 7, 8, 9 , Valérie Keller 1, 2, 3, 4, 5 , Dodzi Zigah 1, 6, 7, 8, 9 , Thomas Cottineau 1, 2, 3, 4, 5
Affiliation  

Herein, we report a new approach that allows a fast investigation of the influence of the thickness of a TiO2 photoelectrochemical film. For this we developed a simple anodization method that allows the growth of, in one step, on a single titanium electrode, aligned TiO2 nanotubes with length changing gradually between 0 and 10 μm. We were able to tune the length of the tubes by controlling the immersion time within the electrolyte during the synthesis. The change of the length of the nanotubes over the entire surface of the electrode requires local probes to measure their properties. Therefore, in order to determine the optimal length of the nanotubes for photoelectrochemical application, the response of these electrodes was locally analysed using Scanning PhotoElectroChemical Microscopy.

中文翻译:

梯度TiO2纳米管的电合成及扫描光电化学显微镜的快速筛选。

在本文中,我们报告了一种新方法,可以快速研究TiO 2光电化学膜厚度的影响。为此,我们开发了一种简单的阳极氧化方法,该方法允许一步在单个钛电极上生长取向的TiO 2长度在0到10μm之间逐渐变化的纳米管。通过控制合成过程中电解液在电解液中的浸入时间,我们能够调整试管的长度。纳米管在电极整个表面上的长度变化需要局部探针来测量其性能。因此,为了确定用于光电化学应用的纳米管的最佳长度,使用扫描光电化学显微镜对这些电极的响应进行了局部分析。
更新日期:2020-03-03
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