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In this article, the role of TiO2 on deactivation and corrosion mechanism of a MMO coating was assessed in 1 M Na2SO4 solution. The Ti/40IrO2 + 30RuO2 + (30 − x)Ta2O5 + (x)TiO2 anodes were prepared by thermal decomposition method. Surface morphology and microstructure of the coatings were characterized by scanning electron microscopy, energy-dispersive spectroscopy and grazing incidence x-ray diffraction...
Nowadays, mixed metal oxide (MMO) anodes are a superior alternative to lead alloys in electrowinning processes. Passivation of titanium substrate is the most common mechanism of deactivation in these anodes. In this research, titanium oxide nanotubes have been utilised as an interlayer between the substrate and a mixed metal oxide coating in order to improve the anode electrochemical behaviour and...
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