Effect of fluoride ions on the structure and electrocatalytic properties of titanium dioxide nanotubes

Authors

  • Hanna M. Maltanava Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk
  • Sergey K. Poznyak Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk
  • Nico Scharnagl Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research, Max-Planck street, 1, 21502, Geesthacht
  • Maria I. Ivanovskaya Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk
  • Tatiana V. Gaevskaya Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk

Keywords:

titanium dioxide, nanotubes, doping, fluoride, oxygen electroreduction

Abstract

Effect of fluoride ions on the structure of titanium dioxide films prepared by anodization has been studied using
X-ray photoelectron spectroscopy, X-ray analysis and scanning electron microscopy. Under the action of fluoride ions,
tubular nanostructure of the TiO2 films was found to be destroyed at annealing in the limited mass transfer conditions.
The mechanism of the processes is proposed. Fluoride doping of titanium dioxide leads to lowering the overvoltage of the
oxygen electroreduction reaction on the TiO2 electrodes.

Author Biographies

  • Hanna M. Maltanava, Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk

    PhD (chemistry); researcher at the laboratory of thin films chemistry

  • Sergey K. Poznyak, Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk

    PhD (chemistry); leading researcher at the laboratory of thin films chemistry

  • Nico Scharnagl, Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research, Max-Planck street, 1, 21502, Geesthacht

    PhD (chemistry); researcher

  • Maria I. Ivanovskaya, Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk

    PhD (chemistry), docent; leading researcher at the laboratory of thin films chemistry

  • Tatiana V. Gaevskaya, Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk

    PhD (chemistry), docent; leading researcher at the laboratory of thin films chemistry

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Published

2017-11-29

Issue

No. 1 (2017): Journal of the Belarusian State University. Chemistry

Section

Original Articles

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How to Cite

[1]
Maltanava, H.M. et al. 2017. Effect of fluoride ions on the structure and electrocatalytic properties of titanium dioxide nanotubes. Journal of the Belarusian State University. Chemistry. 1 (Nov. 2017), 3–9.