Impedimetric and electrocatalytic properties of nanostructured iron(II) phthalocyanine at pyrolytic graphite electrode

The electron transfer behaviour of nanostructured iron(II) phthalocyanine (nanoFePc) at edge plane pyrolytic graphite electrodes (EPPGEs) has been investigated using cyclic voltammetry and electrochemical impedance spectroscopy (EIS). This study proves that the nanoFePc-based electrode exhibits faster heterogeneous electron transfer constant, kapp (about a magnitude higher) than the bulk FePc. In addition, the nanoFePc exhibited enhanced electrocatalytic properties towards the detection of thiocyanate and nitrite in aqueous solutions compared to the bulk FePc counterpart. The results suggest that the nanoFePc could serve as a powerful organometallic functional material for the development of sensors and electrocatalytic devices.