Catalysis of pyrrole electropolymerization by tetrachloroferrate anion

Summary form only given. We studied the effect of tetrachloroferrate anion on pyrrole electropolymerization (EP) and electrochemical properties of the polymer films. The introduction Et/sub 4/NfeCl/sub 4/ into electrolyte during synthesis of polypyrrole allows one to enhance the rate of EP and to diminish the oxidation potential for monomer EP. Even at high current density of 8 mA/cm/sup 2/ stable electroactive polymer films having high surface area were formed. In the films formed having with Et/sub 4/NfeCl/sub 4/ the reversibility of redox transitions was enhanced and corresponding peaks were two-seven times higher than in the films obtained without a catalyst. The catalytic effect of tetrachloroferrate anion was more pronounced in Et/sub 4/NclO/sub 4//CH/sub 3/CN electrolyte than that in NaClO/sub 4//CH/sub 3/CN, because in former the effect is not overshadowed by trace water.