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Single‐Step Anodization for the Formation of WO3‐Doped TiO2 Nanotubes Toward Enhanced Electrochromic Performance
ChemElectroChem ( IF 3.5 ) Pub Date : 2018-09-11 , DOI: 10.1002/celc.201800981
Hyeonseok Yoo 1 , Kiseok Oh 1 , Yoon-Chae Nah 2 , Jinsub Choi 1 , Kiyoung Lee 3
Affiliation  

Herein, we report a single‐step anodization process for WO3‐doped TiO2 nanotubes in an aqueous electrolyte containing the tungsten precursor Na2WO4 ⋅ 2H2O and fluoride ions. The single‐step anodization allows for homogeneous doping of WO3 into the TiO2 nanotube structures. The doping concentration depends on the concentration of the tungsten precursor in the electrolyte, demonstrating that the reported anodizing process is the most efficient approach for metal oxide doping in TiO2. Moreover, compared to bare TiO2, the WO3‐doped TiO2 nanotubes shows better proton intercalation, which leads to enhanced electrochromic performance.

中文翻译:

单步阳极氧化,形成WO3掺杂的TiO2纳米管,以增强电致变色性能

在此,我们报告WO单步阳极氧化工艺3掺杂的TiO 2个在水性电解质含有钨前体的Na碳纳米管2 WO 4  ⋅2H 2 O和氟离子。单步阳极氧化允许将WO 3均匀掺杂到TiO 2纳米管结构中。掺杂浓度取决于电解质中钨前驱物的浓度,表明所报道的阳极氧化工艺是将金属氧化物掺杂到TiO 2中最有效的方法。此外,与裸露的TiO 2相比,WO 3掺杂的TiO 2 纳米管表现出更好的质子嵌入,从而增强了电致变色性能。
更新日期:2018-09-11
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