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Comparison of electrocatalytic characterization of Ti/Sb-SnO and Ti/F-PbO electrodes

Journal of Solid State Electrochemistry, ISSN: 1432-8488, Vol: 20, Issue: 2, Page: 353-359
2016
  • 26
    Citations
  • 0
    Usage
  • 8
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    26
    • Citation Indexes
      26
  • Captures
    8

Article Description

Electrocatalytic oxidation is a promising process for degrading toxic and biorefractory organic pollutants in wastewater treatment. Selection of electrode materials is crucial for electrochemical oxidation process. In this study, Ti/F-PbO and Ti/Sb-SnO electrodes were chosen to compare their electrocatalytic characterization, which were prepared by electrodeposition and thermal decomposition method, respectively. The surface morphology and crystal structure of two electrodes were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The linear polarization curves show that Ti/Sb-SnO electrodes possess higher oxygen evolution overpotential than Ti/F-PbO electrodes. But the stability and corrosion resistance ability of Ti/F-PbO electrode was higher than that of Ti/Sb-SnO electrode. The electrocatalytic activity of Ti/F-PbO and Ti/Sb-SnO electrodes was examined for the electrochemical oxidation of malachite green (MG). The bulk electrolysis shows that the Ti/Sb-SnO electrodes exhibit the higher electrocatalytic activity for the degradation of MG than Ti/F-PbO electrodes, and the degradation process is good fitting for the pseudo-first order reaction. The higher electrocatalytic activity of Ti/Sb-SnO electrodes can be attributed to the higher oxygen evolution overpotential.

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