Voltammetric sizing of a sphere.
The size of a glass sphere positioned in the center of a microdisk electrode is determined by using a simple electrochemical procedure and is confirmed, additionally, by a microscopical measurement of the sphere at the time of the electrochemical measurement. The cyclic voltammetric response of the naked electrode and of the electrode with the sphere positioned in its center is recorded over a wide range of scan rates (0.002-1.5 V s(-1)). The size of the sphere is then determined by comparison of the experimental voltammogram with simulations for each individual scan rate.
Fietkau
Nicole
N
Physical and Theoretical Chemistry Laboratory Oxford University, South Parks Road, Oxford OX1 3QZ, UK.
Chevallier
François G
FG
Jiang
Li
L
Jones
Timothy G J
TG
Compton
Richard G
RG