Supported Diamond-like carbon films on anodized titanium oxide as highefficientelectrocatalyst for electrochemical Ozone production

Titania nanotubes are of interest in various fields such as electrocatalysis, sensing, andphotoelectrolysis due to their high surface area ratio due to their high volume and size-dependentproperties. TiO۲ nanotube arrays were produced by various methods including titaniumanodization in fluoride-based baths [۱]. Recently, diamond-like carbon (DLC) films have attractedmuch attention as electrocatalysts. One of the new strategies for the synthesis of diamond-likecarbon films (DLC) is liquid phase synthesis by electrochemical methods [۲-۳]. Ozone (O۳) asone of the environmentally friendly oxidants, has found wide applications in disinfection andsterilization. Unfortunately, ozone cannot be produced during conventional water electrolysisbecause water is preferentially oxidized to O۲ rather than O۳. [۴-۵]. The efficiency of ozonegeneration through electrochemical ozone generation (EOP) is high (۵۰%). Among all types ofcarbon-based materials, DLCs show the highest additional potential for OER due to tunablediamond and graphite, which is controlled by chemical deposition parameters during deposition[۴-۵]. A DLC film was prepared on the anodized titanium oxide surface by electrodepositionmethod in acetonitrile solution. The prepared electrodes were characterized by scanning electronmicroscopy (SEM) and X-ray diffraction (XRD), and the electrochemical performance of theelectrodes was evaluated for ozone calculations by electrochemical methods.

کلیدواژه ها:

diamond-like carbon ، titania nanotubes ، ozone