Abstract
The glassy carbon (GC) electrode modified with Nafion and Safranin O (SFO) was prepared and its electrochemical properties were investigated. The SFO molecules were strongly and irreversibly adsorbed on the Nafion — modified GC surface. The electrochemical behavior and mechanism for interactions of the SFO molecules with the Nafion film were investigated through cyclic voltammetric method. The electrocatalytic reduction of nitric oxide was performed at this modified electrode by cyclic voltammetric and hydrodynamic amperometric techniques. The Nafion membrane played a duel role as a matrix for the SFO immobilization and also helped to partition the nitric oxide from the solution phase. The diffusion coefficient of NO at the SFO/Nafion/GC modified electrode was calculated using chronoamperometry. The dependence of response currents on the concentration of NO was examined and was linear in the range of 0.05–1.9 mM of NO.
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Published in Russian in Elektrokhimiya, 2009, Vol. 45, No. 10, pp. 1244–1251.
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Taher, M.A., Majidi, F. & Mohadesi, A. Electrochemical and electrocatalytic behaviors of Safranin O/Nafion film deposited on the glassy carbon electrode. Russ J Electrochem 45, 1156–1161 (2009). https://doi.org/10.1134/S1023193509100073
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DOI: https://doi.org/10.1134/S1023193509100073