Electrochemical preparation of yttrium hexacyanoferrate on reduced graphene oxide and its application to analgesic drug sensor

Herein, we report a template free and surfactant less electrochemical approach for the preparation of flower-like yttrium hexacyanoferrate (YHCF) particles on reduced graphene oxide (RGO) modified glassy carbon electrode (GCE). The morphology of YHCF particles has been controlled by varying the molar ratio of Y(NO₃)₂ and K₃Fe(CN)₆ for the first time. The surface morphology of as-prepared RGO/YHCF composite was characterized using SEM, EDX, IR and XRD methods. The electrocatalytic activity of the RGO/YHCF composite modified GCE towards Paracetamol (PA) oxidation has been investigated by using cyclic voltammetry (CV) and linear sweep voltammetry (LSV). Besides, the practical feasibility of the fabricated modified GCE has been demonstrated through the determination of PA from commercially purchased Paracetamol tablets.