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

Electrochemical kinetic study about cobalt electrodeposition onto GCE and HOPG substrates from sulfa...

Hydrogen bond studies in substituted N-(2-hydroxyphenyl)--2-[(4-methylbenzenesulfonyl)amino]acetamid...

A theoretical quantum study on the distribution of electrophilic and nucleophilic active sites on Ag...

Cobalt electrodeposition onto highly oriented pyrolytic graphite (HOPG) electrode from ammonium sulf...

Revisión de variables de diseño y condiciones de operación en la electrocoagulación

Efecto de la composición del soporte sobre las estructuras superficiales de óxidos de níquel y molib...

Chemical Reactivity of Atrazine Employing the Fukui Function

Predicting the Phase Diagram of a Liquid Crystal Using the Convex Peg Model and the Semiempirical PM...

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

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