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Titolo:
Theory for cyclic reciprocal derivative chronopotentiometry with power andexponential programmed currents applied to electrodes coated with reversible electroactive molecular films
Autore:
Molina, A; Gonzalez, J;
Indirizzi:
Univ Murcia, Fac Quim, Dept Quim Fis, E-30100 Murcia, Spain Univ Murcia Murcia Spain E-30100 m, Dept Quim Fis, E-30100 Murcia, Spain
Titolo Testata:
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
fascicolo: 1-2, volume: 493, anno: 2000,
pagine: 117 - 122
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERFACIAL POTENTIAL DISTRIBUTION; STRIPPING ANALYSIS; DNA; POLAROGRAPHY; VOLTAMMETRY; ADSORPTION;
Keywords:
cyclic reciprocal derivative chronopotentiometry; programmed currents; interfacial potential distribution; adsorption;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Molina, A Univ Murcia, Fac Quim, Dept Quim Fis, E-30100 Murcia, Spain UnivMurcia Murcia Spain E-30100 im Fis, E-30100 Murcia, Spain
Citazione:
A. Molina e J. Gonzalez, "Theory for cyclic reciprocal derivative chronopotentiometry with power andexponential programmed currents applied to electrodes coated with reversible electroactive molecular films", J ELEC CHEM, 493(1-2), 2000, pp. 117-122

Abstract

Theoretical expressions corresponding to the responses of adsorbed redox molecules exhibiting reversible charge transfer in cyclic reciprocal derivative chronopotentiometry with programmed currents of the form I(t) = (-1)(i+1)I(0)t(i)(u) and I(t) = (- 1)(i+) 1I(0) e(omega ti) are presented. The effects of the interfacial potential distribution are considered in both casesby using the Smith and White model (Anal. Chem. 64 (1992) 2398). These equations become those previously deduced by Honeychurch (J. Electroanal. Chem. 445 (1998) 63) in reciprocal derivative chronopotentiometry with constantcurrent on making u = 0 and omega = 0. The total analogy between the reciprocal derivative chronopotentiograms (dt(i)(u+1)/dE versus E or d e(omega ti)/dE versus E curves) and the cyclic voltammograms (IIE curves) is proved. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 05/12/20 alle ore 00:52:10