Mediated Electron Transfer at Redox Active Monolayers. Part 3: Bimolecular Outer-Sphere, First Order Koutecky-Levich and Adduct Formation MechanismsReportar como inadecuado




Mediated Electron Transfer at Redox Active Monolayers. Part 3: Bimolecular Outer-Sphere, First Order Koutecky-Levich and Adduct Formation Mechanisms - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Physical Electrochemistry Laboratory, Department of Chemistry, Nasr Institute of Advanced Materials Science, University of Dublin, Trinity College, Dublin 2, Ireland





Abstract A number of theoretical models describing the transport and kinetic processes involved in heterogeneous redox catalysis of solution phase reactants at electrode surfaces coated with redox active monolayers such as self assembled alkane thiols containing a ferrocene group is presented. These models are : simple bimolecular outer-sphere, generalized Koutecky-Levich, and substrate binding- adduct formation . For each model a general expression for the steady state reaction flux is derived. Simplified analytical expressions for the net reaction flux under steady state conditions, are derived for experimentally reasonable situations, and kinetic case diagrams are constructed outlining the relationships between the various approximate solutions. The theory developed enables simple diagnostic plots to be constructed which can be used to analyse experimental data.

Keywords: Heterogeneous redox catalysis; Redox active monolayers; Monolayer modified electrodes; Kinetic modeling of self assembled monolayers; Mediated electron transfer at monolayers Heterogeneous redox catalysis; Redox active monolayers; Monolayer modified electrodes; Kinetic modeling of self assembled monolayers; Mediated electron transfer at monolayers





Autor: Michael E.G. Lyons

Fuente: http://mdpi.com/



DESCARGAR PDF




Documentos relacionados