Electropolymerization features of o-phenylenediamine on carbon electrode with developed surface

Carbonized tissue (CT) was used for the first time to prepare developed surface coated with electroactive polymer. A stable monolayer of electroactive heteropolyacid was found to result from CT impregnation with silicododecamolybendic acid (SiMo) solution. Successful electrochemical oxidation of o-phenylenediamine (OPD) was first demonstrated both on pure carbonized tissue and on the tissue coated with SiMo monolayer, while the oxidation potential on both pure and impregnated CT is shifted by 0.6 V more cathode from the OPD oxidation potential on “smooth” electrodes. OPD oxidation was found to yield primarily water-soluble oligomers on pure CT and solid PPD layer on SiMo-modified tissue.