Mechanism of glucose electrochemical oxidation on gold surface

Handle URI:
http://hdl.handle.net/10754/598790
Title:
Mechanism of glucose electrochemical oxidation on gold surface
Authors:
Pasta, Mauro; La Mantia, Fabio; Cui, Yi
Abstract:
The complex oxidation of glucose at the surface of gold electrodes was studied in detail in different conditions of pH, buffer and halide concentration. As observed in previous studies, an oxidative current peak occurs during the cathodic sweep showing a highly linear dependence on glucose concentration, when other electrolyte conditions are unchanged. The effect of the different conditions on the intensity of this peak has stressed the limitations of the previously proposed mechanisms. A mechanism able to explain the presence of this oxidative peak was proposed. The mechanism takes into account ion-sorption and electrochemical adsorption of OH-, buffer species (K2HPO4/KH2PO4) and halides. © 2010 Elsevier Ltd. All rights reserved.
Citation:
Pasta M, La Mantia F, Cui Y (2010) Mechanism of glucose electrochemical oxidation on gold surface. Electrochimica Acta 55: 5561–5568. Available: http://dx.doi.org/10.1016/j.electacta.2010.04.069.
Publisher:
Elsevier BV
Journal:
Electrochimica Acta
KAUST Grant Number:
KUS-I1-001-12
Issue Date:
Aug-2010
DOI:
10.1016/j.electacta.2010.04.069
Type:
Article
ISSN:
0013-4686
Sponsors:
Y.C. acknowledges support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-I1-001-12). The authors wish to thank Heather Deshazer for her help in preparing the manuscript.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorPasta, Mauroen
dc.contributor.authorLa Mantia, Fabioen
dc.contributor.authorCui, Yien
dc.date.accessioned2016-02-25T13:41:17Zen
dc.date.available2016-02-25T13:41:17Zen
dc.date.issued2010-08en
dc.identifier.citationPasta M, La Mantia F, Cui Y (2010) Mechanism of glucose electrochemical oxidation on gold surface. Electrochimica Acta 55: 5561–5568. Available: http://dx.doi.org/10.1016/j.electacta.2010.04.069.en
dc.identifier.issn0013-4686en
dc.identifier.doi10.1016/j.electacta.2010.04.069en
dc.identifier.urihttp://hdl.handle.net/10754/598790en
dc.description.abstractThe complex oxidation of glucose at the surface of gold electrodes was studied in detail in different conditions of pH, buffer and halide concentration. As observed in previous studies, an oxidative current peak occurs during the cathodic sweep showing a highly linear dependence on glucose concentration, when other electrolyte conditions are unchanged. The effect of the different conditions on the intensity of this peak has stressed the limitations of the previously proposed mechanisms. A mechanism able to explain the presence of this oxidative peak was proposed. The mechanism takes into account ion-sorption and electrochemical adsorption of OH-, buffer species (K2HPO4/KH2PO4) and halides. © 2010 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipY.C. acknowledges support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-I1-001-12). The authors wish to thank Heather Deshazer for her help in preparing the manuscript.en
dc.publisherElsevier BVen
dc.subjectElectrochemical impedance spectroscopyen
dc.subjectGlucose electrochemical oxidationen
dc.subjectGlucose sensingen
dc.subjectGold electrochemical oxidationen
dc.subjectReaction mechanismen
dc.titleMechanism of glucose electrochemical oxidation on gold surfaceen
dc.typeArticleen
dc.identifier.journalElectrochimica Actaen
dc.contributor.institutionUniversita degli Studi di Milano, Milan, Italyen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
kaust.grant.numberKUS-I1-001-12en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.