Electrocatalytic oxidation of ethanol on the surface of the POAP/ phosphoric acid-doped ionic liquid-functionalized graphene oxide nanocomposite film

In situ electropolymerization as a facile synthetic procedure has been used to obtain highly active composites of ionic liquid functionalized graphene oxide (FGO) and poly ortho aminophenol (POAP). Surface and electrochemical analysis have been used for characterisation of FGO-POAP composite film. Nickel was accumulated by complex formation between Ni (II) in solution and amines sites in the polymer backbone to obtain Ni-FGO-POAP/ graphite electrode. Surface morphology of composite was characterized by scanning electron microscopy. The electrochemical performance of Ni-FGO-POAP composite electrodes was investigated by cyclic voltammetry and Chronoamperometry. Compared with Ni- POAP, a Ni-FGO-POAP electrode shows a higher catalytic performance in the electrocatalytic oxidation of ethanol. Under the CA regimes the reaction followed a Cottrellian behavior. Developing a simple and green route for synthesis of FGO-POAP and long life cycle and stability of nanocomposite are main important factor in presented work.