Abstract
TiO2, RuO2, and IrO2 transition metal oxides have many applications in the field of applied electrochemistry. In this work, the mixed solid solutions of TiO2–RuO2–IrO2 coatings have been electrodeposited from aqueous–unaqueous baths.Moreover, the obtained coatings have been heated in the electric furnace at 450°C. The microstructure of coating was characterized using scanning electron microscopy (SEM) and Atomic force microscopy (AFM). In order to investigate, the chemical composition and crystalline phases of coating, X-ray analysis, energy dispersive spectroscopy (EDS) were carried out. Furthermore, anodic polarization behavior of coating was investigated. Results show that heat treated coating at 450°C with the chemical composition of TiO2/RuO2/IrO2 with molar ratio of 70/5/25 with six layer on substrate has the highest quality, stability, adhesion strength and minimum chlorine overvoltage. However, increasing the iridium content in electrolyte enhances the coating thickness and the quality of morphology.
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