Palladium-Cobalt on Reduced Graphene Oxide as an Electro-catalyst for Ethylene Glycol Oxidation in Alkaline Medium: Synthesis and Electrochemical Performance

In this study, pd-co alloying nanoparticles supported on reduced graphene oxide (rgo) were synthesized and characterized by various techniques such as field emission scanning electron microscopy (fe- sem), energy-dispersive x-ray (edx), x-ray diffraction (xrd), and raman spectra. the prepared pd-co/rgo nanoparticle was used as the electro-catalyst for the ethylene glycol (eg) oxidation reaction in the alkaline medium. the activity of pd-co/rgo was evaluated in the half-cell by cyclic voltammetry (cv) technique. results demonstrate that pd-co/rgo electro-catalyst has higher performance compared to simple alloyed-based pd electro-catalysts for eg electro-oxidation in alkaline media. pd-co/rgo catalyst showed well-defined peaks for the eg oxidation reaction after 150 cv cycle. this result indicated that pd-co/rgo electro-catalyst is still active in eg oxidation reaction even after 150 cv cycles, suggesting high poisoning toleration of pd-co/rgo electro-catalyst in the eg oxidation reaction. the results of electrochemical experiments indicated that pd-co/rgo could be practically used as the high- efficiency anode electro-catalyst for the eg oxidation reaction in alkaline media.