- -

On the catalytic oxidation of ascorbic acid at self-doping polyaniline films

RiuNet: Repositorio Institucional de la Universidad Politécnica de Valencia

Compartir/Enviar a

Citas

Estadísticas

  • Estadisticas de Uso

On the catalytic oxidation of ascorbic acid at self-doping polyaniline films

Mostrar el registro sencillo del ítem

Ficheros en el ítem

[Cerrado]
Nombre: OMAR RIVERO TORRE ...
Tamaño: 902.2Kb
Formato: PDF
Descripción: Versión editorial
Solicitar una copia al autor
dc.contributor.author Rivero Torre, Omar es_ES
dc.contributor.author Sanchis, Carlos es_ES
dc.contributor.author Huerta, Francisco es_ES
dc.contributor.author Morallón, Emilia es_ES
dc.date.accessioned 2015-05-21T08:21:46Z
dc.date.available 2015-05-21T08:21:46Z
dc.date.issued 2012
dc.identifier.issn 1463-9076
dc.identifier.uri http://hdl.handle.net/10251/50607
dc.description.abstract Ascorbic acid molecules in either acid or conjugate base forms have been oxidized on self-doping carboxylated polyaniline thin films. The kinetic model proposed by Bartlett et al. has been successfully applied to the catalytic reactions. Active sites in the polymer have been identified as the rings having quinoid character. The existence of significant electrostatic repulsions between ionogenic groups at the self-doping polymer and negatively charged ascorbate molecules has been established thanks to the analysis of the pH dependence of the Michaelis constant. It has been found that in contrast to inorganic conductors the regeneration of active sites in polyaniline-based materials is slower at higher potentials. Such a behavior can be satisfactorily correlated with the potential dependence of the polymer electronic conductivity. es_ES
dc.description.sponsorship Financial support from the Spanish MINECO, FEDER and Generalitat Valenciana through projects MAT2010-15273 and ACOMP/2012/133 is gratefully acknowledged. CS thanks MICINN for FPU grant and OR thanks Fundacion Carolina for predoctoral fellowship. en_EN
dc.language Español es_ES
dc.publisher Royal Society of Chemistry es_ES
dc.relation.ispartof Physical Chemistry Chemical Physics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject.classification QUIMICA FISICA es_ES
dc.title On the catalytic oxidation of ascorbic acid at self-doping polyaniline films es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1039/c2cp41097d
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//MAT2010-15273/ES/ELECTRODOS NANOESTRUCTURADOS PARA APLICACIONES EN SENSORES ELECTROQUIMICOS Y SUPERCONDENSADORES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/Generalitat Valenciana//ACOMP/2012/133/ES/ELECTRODOS NANOESTRUCTURADOS PARA APLICACIONES EN SENSORES ELECTROQUIMICOS Y SUPERCONDENSADORES/ es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera es_ES
dc.description.bibliographicCitation Rivero Torre, O.; Sanchis, C.; Huerta, F.; Morallón, E. (2012). On the catalytic oxidation of ascorbic acid at self-doping polyaniline films. Physical Chemistry Chemical Physics. 14:10271-10278. doi:10.1039/c2cp41097d es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://pubs.rsc.org/en/Content/ArticleLanding/2012/CP/c2cp41097d#!divAbstract es_ES
dc.description.upvformatpinicio 10271 es_ES
dc.description.upvformatpfin 10278 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 14 es_ES
dc.relation.senia 223447
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
dc.contributor.funder Fundación Carolina es_ES
dc.contributor.funder European Regional Development Fund es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
dc.description.references Patil, A. O., Ikenoue, Y., Basescu, N., Colaneri, N., Chen, J., Wudl, F., & Heeger, A. J. (1987). Self-doped conducting polymers. Synthetic Metals, 20(2), 151-159. doi:10.1016/0379-6779(87)90554-6 es_ES
dc.description.references Yue, J., Wang, Z. H., Cromack, K. R., Epstein, A. J., & MacDiarmid, A. G. (1991). Effect of sulfonic acid group on polyaniline backbone. Journal of the American Chemical Society, 113(7), 2665-2671. doi:10.1021/ja00007a046 es_ES
dc.description.references Bartlett, P. N., Birkin, P. R., & Wallace, E. N. K. (1997). Oxidation of β-nicotinamide adenine dinucleotide (NADH) at poly(aniline)-coated electrodes. Journal of the Chemical Society, Faraday Transactions, 93(10), 1951-1960. doi:10.1039/a700468k es_ES
dc.description.references Zhou, D.-M., Xu, J.-J., Chen, H.-Y., & Fang, H.-Q. (1997). Ascorbate sensor based on ‘self-doped’ polyaniline. Electroanalysis, 9(15), 1185-1188. doi:10.1002/elan.1140091512 es_ES
dc.description.references Mažeikien≐, R., Niaura, G., & Malinauskas, A. (2003). Voltammetric study of the redox processes of self-doped sulfonated polyaniline. Synthetic Metals, 139(1), 89-94. doi:10.1016/s0379-6779(03)00037-7 es_ES
dc.description.references Sanchis, C., Ghanem, M. A., Salavagione, H. J., Morallón, E., & Bartlett, P. N. (2011). The oxidation of ascorbate at copolymeric sulfonated poly(aniline) coated on glassy carbon electrodes. Bioelectrochemistry, 80(2), 105-113. doi:10.1016/j.bioelechem.2010.06.006 es_ES
dc.description.references Karyakin, A. A., Strakhova, A. K., & Yatsimirsky, A. K. (1994). Self-doped polyanilines electrochemically active in neutral and basic aqueous solutions. Journal of Electroanalytical Chemistry, 371(1-2), 259-265. doi:10.1016/0022-0728(93)03244-j es_ES
dc.description.references Lukachova, L. V., Shkerin, E. A., Puganova, E. A., Karyakina, E. E., Kiseleva, S. G., Orlov, A. V., … Karyakin, A. A. (2003). Electroactivity of chemically synthesized polyaniline in neutral and alkaline aqueous solutions. Journal of Electroanalytical Chemistry, 544, 59-63. doi:10.1016/s0022-0728(03)00065-2 es_ES
dc.description.references Bartlett, P. N., & Wallace, E. N. K. (2001). The oxidation of ascorbate at poly(aniline)–poly(vinylsulfonate) composite coated electrodes. Physical Chemistry Chemical Physics, 3(8), 1491-1496. doi:10.1039/b009377g es_ES
dc.description.references Karabinas, P., & Jannakoudakis, D. (1984). Kinetic parameters and mechanism of the electrochemical oxidation of L-ascorbic acid on platinum electrodes in acid solutions. Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 160(1-2), 159-167. doi:10.1016/s0022-0728(84)80122-9 es_ES
dc.description.references Huang, W. S., & MacDiarmid, A. G. (1993). Optical properties of polyaniline. Polymer, 34(9), 1833-1845. doi:10.1016/0032-3861(93)90424-9 es_ES
dc.description.references Quillard, S., Louarn, G., Lefrant, S., & Macdiarmid, A. G. (1994). Vibrational analysis of polyaniline: A comparative study of leucoemeraldine, emeraldine, and pernigraniline bases. Physical Review B, 50(17), 12496-12508. doi:10.1103/physrevb.50.12496 es_ES
dc.description.references Bernard, M. C., & Hugot-Le Goff, A. (2006). Quantitative characterization of polyaniline films using Raman spectroscopy. Electrochimica Acta, 52(2), 595-603. doi:10.1016/j.electacta.2006.05.039 es_ES
dc.description.references Lyons, M. E. G., Lyons, C. H., Michas, A., & Bartlett, P. N. (1993). Heterogeneous redox catalysis at hydrated oxide layers. Journal of Electroanalytical Chemistry, 351(1-2), 245-258. doi:10.1016/0022-0728(93)80237-c es_ES
dc.description.references Lyons, M. E. G., McCormack, D. E., & Bartlett, P. N. (1989). Microheterogeneous catalysis in modified electrodes. Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 261(1), 51-59. doi:10.1016/0022-0728(89)87125-6 es_ES


Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem