Electrosynthesis and physioelectrochemical properties of poly tyramine electroactive film in the presence of the surfactant: Comparable study

We describe in detail the advantages of a novel method of electrochemical preparation of poly tyramine (PT), based on the ability of anionic surfactants to form micelles in aqueous media. We demonstrate that the electropolymerisation process carried out in the presence of sodium dodecyl sulfate (SOS) at an oxidation potential lower than in an aqueous media yields better organized PT films. Theoretical calculations for tyramine (Ty) polymerization were carried out at density functional theory (OFT) level using the 6-31G(d,p) basis set. The improved physicochemical and structural properties of PT obtained in these conditions related to the electrocatalytic effect of SDS and change fractal dimension of the film. With respect to Ni-PT/G, Ni-SDS-PT/G electrode shows a higher catalytic performance for the electrocatalytic oxidation of methanol. (C) 2014 Elsevier B.V. All rights reserved.