Yw. Xie et al., CALCULATION OF CYCLIC VOLTAMMETRIC RESPONSES FOR THE REDUCTIVE FORMATION OF CATALYST-SUBSTRATE ADDUCTS ON ELECTRODE SURFACES, Journal of the Chemical Society. Faraday transactions, 92(20), 1996, pp. 3917-3923
Citations number
12
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Electrocatalysts based on monolayers of transition-metal complexes att
ached to electrode surfaces frequently follow mechanisms in which a ch
emical step is interposed between the first and subsequent electron-tr
ansfer steps. The cyclic voltammetric responses to be anticipated for
such systems were calculated using finite difference procedures to sol
ve the relevant differential equation. The calculated variation of the
peak currents and peak potentials with the kinetic parameters governi
ng the three steps in the mechanistic scheme are presented in graphica
l form. Application of the results to a specific experimental system,
the catalysis of the electroreduction of O-2 by a macrocyclic complex
of Co-III adsorbed on graphite electrodes, produced reasonable agreeme
nt between calculated and observed cyclic voltammograms.