Hydrothermally grown novel pyramids of the CaTiO3 perovskite as an efficient electrode modifier for sensing applications

Herein, we report novel CaTiO3 pyramids, prepared by a hydrothermal approach using calcium nitrate and titanium butoxide in the presence of sodium hydroxide. The physio-chemical properties of the synthesized CaTiO3 pyramids were probed by PXRD, FTIR, BET, SEM and EDX. The synthesized CaTiO3 pyramids possess a good specific surface area which is beneficial for electrochemical applications. Thus, the CaTiO3 pyramids were applied as an electrode modifier to develop an electrochemical sensor. The working surface area of the glassy carbon (GC) electrode was fabricated with CaTiO3 pyramids using the drop casting method. This fabricated electrode was employed to determine urea using the cyclic voltammetry and I-V techniques. The fabricated electrode exhibited a good detection limit of 1.6 mu M.