About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Journal of Electroanalytical Chemistry
Paper
Electron transfer rates on electrodes containing surface bonded molecules
Abstract
The presence of covalently attached alkylsilyl derivatives on SnO2 electrode surfaces is found to render the electrochemical reactions of phenothiazine and benzoquinone in acetonitrile quasi-reversible. The magnitude of this effect is estimated for various silyl derivatives by comparing the heterogeneous standard rate, constants, ks, obtained by applying Nicholson's treatment to the measured cyclic voltammograms. The presence of the surface groups reduces the reaction rate by several orders of magnitude. © 1979 Elsevier Sequoia S.A.