Elaboration d’un matériau composite polymère-métal sur un support d’électrodes pour différentes applications

Abstract

This thesis work concerns the electrochemical development of a new composite material based on a polymer film (poly[4-(pyrrol-1-yl methyl) benzoic]) and metallic silver micro particles deposited on the surface of a platinum electrode and FTO. The deposition of the polymer film on the surface of the electrode is obtained by electrochemical oxidation at imposed potential of the monomer in an acetonitrile medium. The incorporation of silver micro particles was achieved by immersing the modified electrode in a silver nitrate solution to complex Ag+ ions with the COOH carboxylic group present in the polymer backbone, followed by electrochemical reduction of the complex. to precipitate silver in the form of metal micro particles in the polymer film. The characterization of the composite material was carried out using different electrochemical, spectroscopic and surface analysis techniques. The composite material thus obtained has good electrical, optical and catalytic properties.