A theoretical model describing the electrochemical oxidation of organi
cs at oxide electrodes (MOx) forming the higher oxide (MOx+1) is descr
ibed. In this model both organics oxidation and O-2 evolution are medi
ated by the higher oxide (MOx+1) which is electrogenerated at the anod
e surface. The effect of concentration polarization in the electrolyte
is also included in the theoretical model. (C) 1997 Elsevier Science
Ltd.