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<p>The research demonstrates that oxide layers formed by electrochemical oxidation of titanium in nitrate melts exhibit electrochromic properties. Electro-optical properties of the titanium-based oxide films have been examined as well. Optimal oxidation conditions along with the composition of the melt have been determined with a view to ensure the production of TiO<sub><i>2</i></sub> oxide characterized by high electrochromic performance. To obtain maximum contrast ratio (K = 7–8), anodic oxidation must be carried out in the potentiostatic mode in the nitrate melts of alkali metals with the addition of KF(Cm(KF) = 0.01–0.04&#xa0;mol/kg), at a temperature of 625 ± 10&#xa0;K, a voltage of 20 ± 5&#xa0;V and a process time of 5–12&#xa0;min. The work points at the prospect of creating electrochromic indicator devices based on titanium oxide.</p>

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Influence of oxidation conditions on the contrast ratio of a titanium electrochromic electrode

  • 期刊论文

  • 发表日期：

    2025年8月26日

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  • Marina Yu. Kuz’mina,
  • Mikhail P. Kuz’min

摘要

The research demonstrates that oxide layers formed by electrochemical oxidation of titanium in nitrate melts exhibit electrochromic properties. Electro-optical properties of the titanium-based oxide films have been examined as well. Optimal oxidation conditions along with the composition of the melt have been determined with a view to ensure the production of TiO2 oxide characterized by high electrochromic performance. To obtain maximum contrast ratio (K = 7–8), anodic oxidation must be carried out in the potentiostatic mode in the nitrate melts of alkali metals with the addition of KF(Cm(KF) = 0.01–0.04 mol/kg), at a temperature of 625 ± 10 K, a voltage of 20 ± 5 V and a process time of 5–12 min. The work points at the prospect of creating electrochromic indicator devices based on titanium oxide.