Producción Científica Profesorado

Electrochemical and AFM characterization of the electropolimerization of pyrrole over a graphiteepoxy resin solid composite electrode, in the presence of different anions



Galan Vidal, Carlos Andres

2006

G.A. Álvarez-Romero, E. Garfias-García, M.T. Ramírez-Silva, C. Galán-Vidal, M. Romero-Romo and M. Palomar-Pardavé. Electrochemical and AFM characterization of the electropolimerization of pyrrole over a graphite-epoxy resin solid composite electrode, in the presence of different anions. Applied Surface Science 252 (2006) 5783-5792. ISSN 0169-4332


Abstract


his work studied the process of electrochemical formation of polypyrrole, Ppy, over a graphiteepoxy resin composite electrode in the presence of different anions: DS?, NO3? and Cl?. It was shown by means of AFM that the morphological characteristics and the formation kinetics of the Ppy deposit, from analysis of experimental current density transients, are strongly dependent on the nature of the anion present. It was found that for all cases, the formation mechanism involves the simultaneous presence of adsorption and 3D nucleation, limited by diffusion of the different pyrrole oligomer species, processes.






Artículos relacionados

Synthesis of Zn compounds derived from 1H-benzimidazol-2-ylmethanamine

Bioacumulación y daños genotóxicos en Pez Cebra (Danio rerio) por arsénico en aguas de Zimapán, Hida...

Cobalt electrodeposition on polycrystalline palladium. Influence of temperature on kinetic parameter...

Underpotential deposition of cobalt onto polycrystalline platinum

A Semiempirical PM6 Study of Some Aminopyrimidine Derivatives and their Interaction with an Iron Sur...

Characterization of Main Anthocyanins Extracted from Pericarp Blue Corn by MALDI-ToF MS

Synthesis and crystal structures of cis-palladium(II) and cis-platinum(II) complexes containing di...

Nucleation and growth of cobalt onto different substrates: Part I. Underpotential deposition onto a ...

Zinc Electrodeposition from Chloride Solutions onto Glassy Carbon Electrode

Quantum chemical study of the electrochemical reduction of the [Co(H2O)6]2+ and [Co(NH3)5(H2O)]2+ io...