Electrochemical method of preparing metallic, polymeric and organic-inorganic hybrid e narrowness inside porous anodic alumina templates

The fabrication of free standing silver, poly pyrrole (PPY) and hybrid e P Py-Ag nano wire arrays was reported. Silver, P Py and P Py-Ag nano wires were produced by electrochemical deposition/polymerization of metal/polymer in anodic aluminium oxide (AAO) templates. The home-made AAO templates were fabricated by two-step anodization of aluminium performed in oxalic acid, sulfuric acid an phosphoric acid at the anodizing potentials of 25 V, 45 V and 195 V, respectively. Silver nano wires with a diameter of ∼ 40, 80 and 300 nm were synthesized by Dc electrode position from a commercial y available plating bath. P Py nano wires, ∼80 nm in diameter, were synthesized by electropolyerization of a monomer in a solution containing pyrrole (Py) and NaCIO4 by applying a constant potential. The hybrid e P Py-Ag nano wires, ∼80 nm in diameter, were synthesized by a simple simultaneous cathodic electro polymerization of pyrrole and metal deposition in a solution containing HNO3 NaNO3, pyrrole (Py) and AgNO-3 by applying a constant potential. After the electrochemical deposition, free standing Ag, P Py and P Py-Ag nano wire arrays were obtained by subsequent chemical etching of the AAO template in an aqueous NaOH solution. The morphology and structural characterization of fabricated nano wires were performed by Fe-SEM and EDAX analyes. (authors).