ELECTROGENERATED CHEMILUMINESCENCE IN ELECTRODE SURFACE INVESTIGATION- DETERMINATION OF REDOX POTENTIALS OF ORGANIC DEPOLARIZERS IN ELECTRODE PROCESSES COMPLICATED BY THE CHEMICAL STAGE AND AT HIGH BACKGROUNDCURRENTS OF ELECTROLYSIS
Em. Belash et al., ELECTROGENERATED CHEMILUMINESCENCE IN ELECTRODE SURFACE INVESTIGATION- DETERMINATION OF REDOX POTENTIALS OF ORGANIC DEPOLARIZERS IN ELECTRODE PROCESSES COMPLICATED BY THE CHEMICAL STAGE AND AT HIGH BACKGROUNDCURRENTS OF ELECTROLYSIS, Russian journal of electrochemistry, 30(9), 1994, pp. 1042-1052
The physicochemical rationale for a novel electrogenerated chemilumine
scence technique for determining redox potentials of organic depolariz
ers in electrode processes are discussed. The technique takes into acc
ount the complications of the process associated with subsequent chemi
cal reactions and high background currents of electolysis. Specifics o
f the application of the new technique to cyclic voltammetry and to da
ta acquisition in the cells with electrolyte convection are described.
Convection of the electrolyte in the cell is produced by using either
a rotating-disk electrode or a rotating-ring-disk electrode. It is sh
own that the new method can be extremely useful for obtaining redox po
tentials of various electrochemically active organic compounds, i.e.,
electroluminophors, under conditions when the ratio of the analyticall
y useful signal (faradaic current) to the background signal (interfere
nce caused by the residual components of the electrolytic current) is
much less than unity, as well as when subsequent chemical reactions oc
curing in the system complicate the faradaic process under investigati
on.