Fabrication of a New Platinum Electrode Modified with Bismuth Sulphide and Carbon Paste for Electrocatalytic Oxidation of Benzyl Alcohols in a Biphasic System

Alcohols be effectively converted into aldehydes by electrochemical oxidation, which is also a potential green technology. The cost-effective method of electrochemical oxidation to create a porous network of bismuth sulphide with carbon paste that served as conductive support for benzyl alcohol oxidation. Over a large surface area of electrochemically produced carbon paste (CP) on a platinum electrode, bismuth sulphide (Bi₂S₃) was augmented evenly. The interfacial characteristics between the electrode and the electrolyte are improved by a thin film of Bi₂S₃/CP acting as a matrix. X-ray diffraction, Fourier transforms infrared attenuated total reflectance spectroscopy, atomic force microscopy, and scanning electron microscopy were used to characterise the Pt-decorated Bi₂S₃/CP samples. Additionally, cyclic voltammetry and electrochemical impedance spectroscopy evaluated the electrocatalytic performance of Bi₂S₃/CP on Platinum electrodes for the oxidation of benzyl alcohol. The findings suggest that benzyl alcohol is efficiently oxidized in acidic conditions by Bi₂S₃/CP assemblies. Strong electrocatalytic activity, quick current responsiveness, and steady catalytic activity were all displayed by the chemically modified platinum electrode.