Non-modified and platinum/polyaniline-modified carbon fiber fabric electrodes: preparation and electrochemical behavior towards amaranth electroreduction/electrooxidation electrolysis

The electrochemical behavior of non-modified, Pt-modified and Pt/polyanilinemodified carbon fiber textile electrodes was studied through a series of electroreduction/electrooxidation electrolyses, performed under potentiostatic conditions, for an amaranth/sulphuric solution in the presence or absence of chloride ion. Both Pt electrodeposition and aniline polymerization were carried out potentiodinamically by cyclic voltammetry (CV). The morphology of the dispersed Pt, PANI, and PANI/Pt coatings on the textile surface was analyzed by scanning electron microscopy (SEM) and stereoscopic imaging. Scanning electrochemical microscopy (SECM) was used to confirm that the electrocatalytic material synthesized on the textile surface, coats and modifies effectively the electroactivity of the carbon fiber fabric. Manuscript Click here to download Manuscript: Manuscript.doc