Artículo
Bonazzola, C.; Calvo, E.J. "An electrochemical impedance and spectroelectrochemical study of the polypyrrole-flavin composite electrode" (1998) Journal of Electroanalytical Chemistry. 449(1-2):111-119
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Abstract:
Electrodes modified with polypyrrole-flavin mononucleotide composite film (PPy-FMN) have been studied by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and UV-visible spectro-electrochemistry with optically transparent electrodes (OTE). Flavin molecules, electrostatically trapped in the composite film, act as dopant anions and can be reduced chemically by reduced PPy0 or electrochemically with a conducting PPy backbone connecting them to the underlying electrode. Both the electrochemistry and the electronic spectra of FMN entrapped in the PPy film markedly differ from those of FMN in aqueous solutions. These differences arise from the interactions of flavin molecules in a rigid matrix and the possibility of both chemical reduction of FMN by reduced PPy0 and flavin electro-reduction in the host polymer matrix. © 1998 Elsevier Science S.A. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | An electrochemical impedance and spectroelectrochemical study of the polypyrrole-flavin composite electrode |
| Autor: | Bonazzola, C.; Calvo, E.J. |
| Filiación: | Depto. Quim. Inorg., Analitica Quim., Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellon 2, AR-1428 Buenos Aires, Argentina |
| Palabras clave: | Cyclic voltammetry; Dopant anions; Electrochemical impedance spectroscopy; Optically transparent electrodes; Polypyrrole-flavin mononucleotide composite film; UV-visible spectro-electrochemistry; Aromatic polymers; Chemical modification; Cyclic voltammetry; Electrostatics; Molecular structure; Nitrogen compounds; Solutions; Spectroscopy; Flavin; Optically transparent electrodes; Polypyrrole; Electrochemical electrodes |
| Año: | 1998 |
| Volumen: | 449 |
| Número: | 1-2 |
| Página de inicio: | 111 |
| Página de fin: | 119 |
| DOI: | http://dx.doi.org/10.1016/S0022-0728(98)00047-3 |
| Título revista: | Journal of Electroanalytical Chemistry |
| Título revista abreviado: | J Electroanal Chem |
| ISSN: | 15726657 |
| CODEN: | JECHE |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15726657_v449_n1-2_p111_Bonazzola |
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Citas:
---------- APA ----------
Bonazzola, C. & Calvo, E.J. (1998) . An electrochemical impedance and spectroelectrochemical study of the polypyrrole-flavin composite electrode. Journal of Electroanalytical Chemistry, 449(1-2), 111-119.http://dx.doi.org/10.1016/S0022-0728(98)00047-3
---------- CHICAGO ----------
Bonazzola, C., Calvo, E.J. "An electrochemical impedance and spectroelectrochemical study of the polypyrrole-flavin composite electrode" . Journal of Electroanalytical Chemistry 449, no. 1-2 (1998) : 111-119.http://dx.doi.org/10.1016/S0022-0728(98)00047-3
---------- MLA ----------
Bonazzola, C., Calvo, E.J. "An electrochemical impedance and spectroelectrochemical study of the polypyrrole-flavin composite electrode" . Journal of Electroanalytical Chemistry, vol. 449, no. 1-2, 1998, pp. 111-119.http://dx.doi.org/10.1016/S0022-0728(98)00047-3
---------- VANCOUVER ----------
Bonazzola, C., Calvo, E.J. An electrochemical impedance and spectroelectrochemical study of the polypyrrole-flavin composite electrode. J Electroanal Chem. 1998;449(1-2):111-119.http://dx.doi.org/10.1016/S0022-0728(98)00047-3
