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Homogeneous catalysis of electrochemical reactions. Channel electrode voltammetry and the EC′ mechanism
Author(s) -
Compton Richard G.,
Fisher Adrian C.,
Spackman R. Anthony
Publication year - 1992
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.1140040207
Subject(s) - electrochemistry , homogeneous , electrode , voltammetry , mechanism (biology) , cyclic voltammetry , catalysis , chemistry , inorganic chemistry , organic chemistry , thermodynamics , physics , quantum mechanics
The shape of the current–voltage curves at a channel electrode have been calculated for the various situations of the catalytic (EC′) mechanism. In particular the halfwave potential and limiting current are found to be highly sensitive to the solution‐flow rate and to the concentrations of the mediator and substrate employed. These observations provide a ready method of unambiguously characterizing the different pathways.