TY - JOUR
T1 - Kinetic parameters from steady-state voltammograms at microdisc electrodes
AU - Oldham, Keith B.
AU - Myland, Janice C.
AU - Zoski, Cynthia G.
AU - Bond, Alan M.
PY - 1989/10/10
Y1 - 1989/10/10
N2 - Exact methods of determining the kinetic parameters α and ko, as well as the thermodynamic parameter Eo, from steady-state voltammograms at microdisc electrodes are presented. These methods rely on employing a range of microdisc radii in order to scan the reversible, quasi-reversible or irreversible kinetic regimes. The experimentally determined quartile potentials E 1 4, E 1 2, and E 3 4 are either graphed or used to locate points on the so-called " kinetic indicator diagrams " from which α, ko, and Eo may be determined. Our procedures are not based on the usual assumptions of " uniform accessibility " or equal diffusion coefficients.
AB - Exact methods of determining the kinetic parameters α and ko, as well as the thermodynamic parameter Eo, from steady-state voltammograms at microdisc electrodes are presented. These methods rely on employing a range of microdisc radii in order to scan the reversible, quasi-reversible or irreversible kinetic regimes. The experimentally determined quartile potentials E 1 4, E 1 2, and E 3 4 are either graphed or used to locate points on the so-called " kinetic indicator diagrams " from which α, ko, and Eo may be determined. Our procedures are not based on the usual assumptions of " uniform accessibility " or equal diffusion coefficients.
UR - http://www.scopus.com/inward/record.url?scp=0002368590&partnerID=8YFLogxK
U2 - 10.1016/0022-0728(89)85029-6
DO - 10.1016/0022-0728(89)85029-6
M3 - Article
AN - SCOPUS:0002368590
SN - 0022-0728
VL - 270
SP - 79
EP - 101
JO - Journal of Electroanalytical Chemistry and Interfacial Electrochemistry
JF - Journal of Electroanalytical Chemistry and Interfacial Electrochemistry
IS - 1-2
ER -