Investigation of  the Simultaneous Effect of Electrolyte Additives and α-PbO2 Intermediate Layer on the Electrodeposition of Ti/β-PbO2  Electrode

Sharifidarabad, Hadi; Zakeri, Alireza; Adeli, Mandana

doi:10.22068/ijmse.3513

IN PRESS Back to the articles list | Back to browse issues page

‎ 10.22068/ijmse.3513

Investigation of the Simultaneous Effect of Electrolyte Additives and α-PbO2 Intermediate Layer on the Electrodeposition of Ti/β-PbO2 Electrode

Hadi Sharifidarabad

, Alireza Zakeri

, Mandana Adeli

Abstract: (578 Views)

The sensitivity of lead dioxide coating properties to the deposition conditions and electrolyte composition has allowed the preparation of coatings with different properties for different applications. In this study, the effects of electrolyte additives on the electrodeposition process were investigated using electrochemical measurements such as cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. The results showed that the presence of fluoride ions significantly reduce the possibility of TiO₂ formation. The addition of copper ions not only prevents lead loss at the cathode, but also leads to the formation of copper oxide on the surface at initial stages, which hinders nucleation of PbO₂. The presence of sodium dodecyl sulfate (SDS) also interferes with the nucleation process as it occupies active nucleation sites. The α-PbO₂ interlayer prevents copper oxidation and solves the problem of lead dioxide nucleation. Finally, it was found that the simultaneous use of all additives together with the α-PbO₂ interlayer has a positive effect on the coating process.

Keywords: Lead dioxide electrode, anodic electrodeposition, chronoamperometry, cyclic voltammetry