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Double‐Layer Correction for Electron‐Transfer Kinetics at Glassy Carbon and Mercury Electrodes in N , N ‐Dimethylformamide
Author(s) -
Belèn Meneses Ana,
Antonello Sabrina,
Arévalo Maria Carmen,
Maran Flavio
Publication year - 2006
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.200503419
Subject(s) - glassy carbon , dimethylformamide , cyclic voltammetry , electrode , inorganic chemistry , analytical chemistry (journal) , chemistry , voltammetry , kinetics , dropping mercury electrode , mercury (programming language) , sulfide , carbon black , materials science , electrochemistry , organic chemistry , physics , quantum mechanics , solvent , computer science , programming language , natural rubber
The double‐layer properties of the glassy carbon electrode in N , N ‐dimethylformamide (DMF) containing tetrabutylammonium perchlorate (TBAP) at different concentrations have been studied by cyclic voltammetry and impedance. The results were compared with analogous results obtained for the mercury/DMF interface. For both electrodes, the double‐layer data were treated to obtain useful equations describing the dependence of the outer Helmholtz plane potential on the applied potential. The kinetics of the dissociative reduction of a sulfide in DMF/0.1 M TBAP was studied by convolution analysis on both glassy carbon and mercury and used as an example to test the double‐layer results and compare the behavior of the two electrodes.