Electrochemical characterization of glassy carbon electrodes modified by resol mixtures

摘要: Abstract The present work aims to obtain more insights into the effects of electrochemical polymerization a 4-hydroxybenzaldehyde+formaldehyde (resol) mixture on properties modified glassy carbon electrodes. Different redox couples, having permanent positive charge (Fe-phenathroline), negative (K 3 Fe(SNC) 6 ) and either or charge, depending solution pH ( l -Dopa), have been analyzed. Cyclic voltammetry impedance spectroscopy experiments were performed at different deposited polymer values for proposed systems comparison with polished electrodes is also Electrophoretic mobilities investigated acid–base titrations carried out in order prove that surface negatively charged. Electrochemical measurements showed an important electrostatic effect between electrode couples This plays role response when used analytical purposes.