TY - JOUR
T1 - Theoretical and experimental study of Differential Pulse Voltammetry at spherical electrodes
T2 - Measuring diffusion coefficients and formal potentials
AU - Molina, A.
AU - Laborda, E.
AU - Martínez-Ortiz, F.
AU - Serna, C.
AU - Rogers, E.I.
AU - Limon-Petersen, J.G.
AU - Rees, N.V.
AU - Compton, R.G.
N1 - Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2009/9/15
Y1 - 2009/9/15
N2 - Rigorous and approximate analytical expressions are deduced for Differential Pulse Voltammetry at spherical electrodes of any size, including microelectrodes, when the electrogenerated species is soluble in the electrolytic solution. From these, we examine the utility of DPV for the determination of diffusion coefficients and formal potentials, establishing the optimum conditions for this purpose. The experimental validation of the theoretical results is reported for mercury microelectrodes of ca. 50 and 10 μm diameters both in aqueous and ionic liquid media.
AB - Rigorous and approximate analytical expressions are deduced for Differential Pulse Voltammetry at spherical electrodes of any size, including microelectrodes, when the electrogenerated species is soluble in the electrolytic solution. From these, we examine the utility of DPV for the determination of diffusion coefficients and formal potentials, establishing the optimum conditions for this purpose. The experimental validation of the theoretical results is reported for mercury microelectrodes of ca. 50 and 10 μm diameters both in aqueous and ionic liquid media.
UR - http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-69249208606&md5=01872e92c9332aafa813c18ebc6b06dd
U2 - 10.1016/j.jelechem.2009.07.011
DO - 10.1016/j.jelechem.2009.07.011
M3 - Article
AN - SCOPUS:69249208606
SN - 1572-6657
VL - 634
SP - 73
EP - 81
JO - Journal of Electroanalytical Chemistry
JF - Journal of Electroanalytical Chemistry
IS - 2
ER -