Premium
Channel Microband Electrode Arrays for Mechanistic Electrochemistry. Two‐Dimensional Voltammetry: Electrode Kinetics
Author(s) -
Prieto Francisco,
Alden John A.,
Feldman Mark,
Coles Barry A.,
Compton Richard G.,
Oyama Munetaka,
Okazaki Satoshi
Publication year - 1999
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/(sici)1521-4109(199906)11:8<541::aid-elan541>3.0.co;2-i
Subject(s) - electrode , cyclic voltammetry , electrochemistry , voltammetry , analytical chemistry (journal) , reaction rate constant , horizontal scan rate , chronoamperometry , materials science , standard hydrogen electrode , microelectrode , supporting electrolyte , potentiostat , chemistry , reference electrode , kinetics , chromatography , physics , quantum mechanics
The theory of “two‐dimensional voltammetry” using arrays of gold channel microband electrodes ranging in size from the millimeter to the micrometer scale is extended to permit the deduction of electrochemical rate constants through the analysis of hydrodynamic voltammograms as a function of both electrode size and electrolyte flow rate (convection). The technique is applied to the reduction of p ‐chloranil and the oxidation of 2,3,7,8‐tetramethoxythianthrene both in acetonitrile solution and electrochemical rate constants are reported.