TY - JOUR
T1 - Mechanism of glucose electrochemical oxidation on gold surface
AU - Pasta, Mauro
AU - La Mantia, Fabio
AU - Cui, Yi
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-I1-001-12
Acknowledgements: 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.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2010/8
Y1 - 2010/8
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/598790
UR - https://linkinghub.elsevier.com/retrieve/pii/S0013468610006262
UR - http://www.scopus.com/inward/record.url?scp=77954176145&partnerID=8YFLogxK
U2 - 10.1016/j.electacta.2010.04.069
DO - 10.1016/j.electacta.2010.04.069
M3 - Article
VL - 55
SP - 5561
EP - 5568
JO - Electrochimica Acta
JF - Electrochimica Acta
SN - 0013-4686
IS - 20
ER -