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The Influence of Electrode Porosity on Diffusional Cyclic Voltammetry
Author(s) -
Menshykau Denis,
Compton Richard G.
Publication year - 2008
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200804334
Subject(s) - electrode , porosity , cyclic voltammetry , materials science , electrocatalyst , planar , analytical chemistry (journal) , composite material , chemistry , electrochemistry , chromatography , computer science , computer graphics (images)
A simple generic model to predict the influence of electrode porosity on the cyclic voltammetric response of an electrode is presented. The conditions under which deviation from the behavior of a perfectly flat, planar electrode can be expected are predicted. The scope for misinterpretation when conventional flat electrode theory is applied to porous electrodes is highlighted, especially in respect to the extraction of electrode kinetic parameters and the influence of ‘electrocatalysis’.