The Combined Influences of Solution Resistance and Charge-Transfer Kinetics on Microelectrode Cyclic Voltammetry
Abstract
The effects of heterogeneous kinetics on cyclic voltammograms at microdisk electrodes are examined by digital simulation. The increased diffusive efficiency at microelectrodes raises the upper limit of measurable rate constant relative to a large electrode. Solution resistance, often considered to be insignificant at microelectrodes, is shown to have potentially serious influence on the shape of the voltammogram. When solution resistance and heterogeneous kinetics are combined, the results suggest complex coupling between the effects of these parameters, thus making their separation difficult. Keywords: Microelectrode, Cyclic voltammetry, Heterogeneous kinetics, Solution resistance, Digital simulation, Reprints.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1989
- Accession Number
- ADA210208
Entities
People
- Lance K. Safford
- Michael J. Weaver
Organizations
- Purdue University