Joon-Hyung Kim, L. Faulkner
Feb 25, 1988
Citations
0
Influential Citations
7
Citations
Journal
Journal of Electroanalytical Chemistry
Abstract
Abstract Cyclohexanone was examined as a possible scavenger of hydride that is eliminated electrolytically from Pt electrodes at negative potentials. This substance reacts quickly and cleanly with hydride to produce the alkoxide of cyclohexanol. Its effectiveness for electrochemical applications was tested by examining the chemiluminescence transients from the sequential generation of the anion and cation radicals of 9,10-diphenylanthracene in acetonitrile. The addition of cyclohexanone caused the light transients from the two distinct reactant generation sequences to become much more nearly equivalent, and it improved the linearity of the ECL intensity with the inverse square root of time. In addition, cyclohexanone was shown to suppress the formation of surface films formed from tris(2,2'-bipyridine)-ruthenium(II) at Pt electrodes in acetonitrile solutions. In the studies of ECL, high concentrations of cyclohexanone also caused a magnetic effect to arise in the DPA system. This was interpreted in terms of an induction by cyclohexanone of a significant T-route component to the ECL.