Cathodic electrosynthesis of titanium and ruthenium oxides

Cathodic electrosynthesis of TiO2, RuO2 and composite RuO2-TiO2 films on Pt substrates was performed via hydrolysis of TiCl4 and RuO3 ·nH2O salts dissolved in water or mixed methyl alcohol-water solvent. The weight of the TiO2 and RuO2 deposits was studied versus the duration of deposition. The crystallization behavior of the deposits has been studied. A possible mechanism of electrosynthesis is discussed.