An impedance study about the effect of pH on the electron transport rate at poly(o-aminophenol) film electrodes

dc.creatorTucceri, Ismael Ricardo
dc.date.accessioned2016-04-08T17:34:53Z
dc.date.accessioned2018-11-06T12:37:11Z
dc.date.available2016-04-08T17:34:53Z
dc.date.available2018-11-06T12:37:11Z
dc.date.created2016-04-08T17:34:53Z
dc.date.issued2014-06
dc.identifierTucceri, Ismael Ricardo; An impedance study about the effect of pH on the electron transport rate at poly(o-aminophenol) film electrodes; Bentham Science Publishers; Current Physical Chemistry; 4; 3; 6-2014; 232-237
dc.identifier1877-9468
dc.identifierhttp://hdl.handle.net/11336/5087
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1868319
dc.description.abstractImpedance measurements on poly(o-aminophenol) (POAP) film electrodes in solutions of different pH were carried out. Impedance spectra were interpreted in terms of the modified electron hopping model described in F.J. Rodríguez Nieto, R. Tucceri, J. Electroanal. Chem., 416(1996), 1. An increase of the metal/POAP interfacial resistance with an increase of pH was obtained. With regard to the bulk charge-transport process, a decrease in the electron diffusion coefficient with an increase of pH was extracted from the fitting procedure. The change of the charge-transport and charge-transfer parameters with the increase in pH was attributed to an increase in the electron hopping distance between adjacent redox sites in POAP films. Impedance results are in agreement with potentiodynamic surface resistance measurements carried out in [10].
dc.languageeng
dc.publisherBentham Science Publishers
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://benthamscience.com/journals/current-physical-chemistry/volume/4/issue/3/page/232/
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/ben/cpc/2014/00000004/00000003/art00003
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.2174/1877946805666150216223508
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.2174/1877946805666150216223508
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectPOLY(O-AMINOPHENOL) FILM ELECTRODES
dc.subjectPH EFFECT
dc.subjectELECTRON DIFFUSION COEFFICIENT
dc.subjectREDOX SITE DISTRIBUTION
dc.titleAn impedance study about the effect of pH on the electron transport rate at poly(o-aminophenol) film electrodes
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


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