Volume 37 Issue 3
Jun.  2022
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DUAN Tigang, MA Li, WU Zhengjiang, XIN Yonglei, GAO Xianze, XU Likun. Morphology Effects of TiO2 Mediated Layer on Electrolytic Chlorine Evolution Performance of Ru-Ir Oxide Electrodes[J]. Development and Application of Materials, 2022, 37(3): 39-44.
Citation: DUAN Tigang, MA Li, WU Zhengjiang, XIN Yonglei, GAO Xianze, XU Likun. Morphology Effects of TiO2 Mediated Layer on Electrolytic Chlorine Evolution Performance of Ru-Ir Oxide Electrodes[J]. Development and Application of Materials, 2022, 37(3): 39-44.
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Morphology Effects of TiO2 Mediated Layer on Electrolytic Chlorine Evolution Performance of Ru-Ir Oxide Electrodes

  • 1. Science and Technology on Marine Corrosion and Protection Laborary, Luoyang Ship Material Research Institute, Qingdao 266101, China;

  • 2. Wuhan Second Ship Design & Research Institute, Wuhan 430064, China

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  • Received Date: August 11, 2021
  • Available Online: September 05, 2022
    Graphical Abstract
    • Abstract
  • TiO2 mediated layers with various morphologies such as nanosheets and nanowires have been realized through the alkaline hydrothermal method to improve the electrochemical performance of Ru-Ir oxide electrodes. After introducing the TiO2 mediated layers, the electrode cracking morphology turns to the hierarchical structures with nanosheets and nanowires, and the cracks on the electrode surface disappear. Linear sweeping voltammetry analysis indicates that the chlorine evolution potential of electrode reduces from 1.171 V (vs. SCE) to 1.162 V (vs. SCE), and that the chlorine evolution polarizability decreases from 0.516 V to 0.454 V when the electric current densities are 2 mA·cm-2 and 20 mA·cm-2. The voltammetry charge calculation shows the amount of voltammetric charge for TiO2-mediated Ru-Ir oxide electrode increases to 18.3 mC·cm-2, which is 4.78 times as much as that of Ti/Ru-Ir electrode (3.83 mC·cm-2). Meanwhile, the charge transfer impedance decreases. Introducing the TiO2 mediated layers with various morphologies can improve the electrochemical activity of electrode and enhance the electrocatalytic chlorine evolution ability.
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    • References (18)
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