Kinetics determination of electrogenerated hydrogen peroxide (H2O2) using carbon fiber microelectrode in electroenzymatic degradation of phenolic compounds

This study determined the kinetics of electrogenerated hydrogen peroxide (H2O2) by amperometric technique using a carbon fiber microelectrode in electroenzymatic degradation of phenol. The electrogeneration rate of H2O2 was varied as an effect of pH and the applied potential, and resulting in a variable current response of a carbon fiber microelectrode. Aqueous phenol was completely degraded and the degradation stoichiometric ratio between the electrogenerated H2O2 and the aqueous phenol under HRP immobilized on RVC was found to be 1:1.