AC VOLTAMMETRY: INSTRUMENTAL ARTIFACTS AND APPLICATIONS
Abstract
What we have attempted here is a detailed examination of one of the common techniques used to quantitatively evaluate heterogeneous electron transfer rate constants, AC voltammetry. We have focussed primarily on the effects of instrumental non-idealities on the measured response and means for correcting for them. Also presented is a comparison between the error in a measured rate constant when cyclic voltammetry rather than AC voltammetry is used. Following the development of the method for correcting for the instrumental non-idealities, AC voltammetry is used to evaluate the rate constants for certain selected couples in a variety of non-aqueous media. It was then observed that there exists a group of redox couples whose heterogeneous electron transfer rate constants are independent of the diffuse-layer potential.
Degree
Ph.D.
Subject Area
Analytical chemistry
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