Abstract
Abstract The electrochemical oxidation of 2-mercaptoethanol has been examined on cobalt phthalocyanine (CoPc) + poly(2-chloroaniline) (PANCl) modified electrodes. A simple and reproducible procedure is described to obtain the modified-polymer electrodes. PANCl electrodes are modified by dispersing three different percentages of CoPc (0.1, 1 and 20%). These modified electrodes show electrocatalytic activity for 2-mercaptoethanol electro-oxidation in an acid medium. The evaluation of the electrocatalytical response of PANCl + CoPc films suggests that the diffusion rate of electroactive species into the film is improved when the polymer reaches the oxidized state.
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