Titanium Oxide (TiO₂) Nanoparticles Decorated Three- Dimensional Porous Nickel Foam Electrode for Non-Enzymatic Electrochemical Sensing of Glucose

摘要

Three dimensional (3D) interconnected materials paid much attention in various field due to theirsignificant electrical and catalytic properties. Here, 3D Ni-TiO 2 nanocomposite was prepared by wetimpregnation method. The structure and morphology of the prepared 3D Ni-TiO 2 were characterizedby scanning electron microscopy and electrochemical techniques, namely cyclic voltammetry andamperometry for non-enzymatic detection of glucose. The Ni-TiO 2 nanocomposite electrode showedexcellent electrocatalytic activity towards the electro-oxidation of glucose molecule in an alkalinemedium. The sensitivity was 844.85 μA mM -1 cm -2 with selectivity towards the detection of glucose inthe presence of interferences such as uric acid, ascorbic acid, and dopamine. The sensor was also usedto determine the glucose in human blood serum samples.