Abstract
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•BaTiO3 perovskite was synthesized using hydrothermal method.•Glassy carbon electrode was modified with BaTiO3 perovskite for hydrogen peroxide sensing applications.•Modified electrode showed good detection limit of 0.093 µM.
In the present study, we reported the fabrication of barium titanate (BaTiO3) nanoparticles using barium nitrate, and titanium (IV) butoxide as Ba and Ti precursors via hydrothermal approach. Further, glassy carbon electrode was modified with BaTiO3 nanoparticles to develop the hydrogen peroxide (H2O2) sensor. Linear-sweep voltammetry (LSV), and chronoamperometry were adopted as electrochemical sensing techniques towards the determination of H2O2. The BaTiO3/GCE demonstrated decent sensitivity of 0.41 µA/µMcm2 and limit of detection (LoD) of 0.89 µM using LSV method whereas sensitivity of 5.49 µA/µMcm2 and LoD of 0.09 µM were obtained using chronoamperometry.