Nickel oxide multi walled carbon nanotube composite as non-enzymatic electrochemical glucose sensor

Abstract

In this scientific letter, we report a simple, scalable, economical and solvent-free method for the synthesis of uniformly decorated nickel-oxide (NiO) multi-walled carbon nanotube (MWCNT) composites. These materials were characterized by using scanning electron microscopy (SEM), X-ray diffractometer (XRD) and then were used to prepare modified electrode for glucose sensing application. The electrochemical investigations like cyclic voltammetry (CV) and chronoamperometry were carried out in 0.2 M NaOH. The electrochemical results show excellent sensitivity of 323 mA mM?1cm?2and detection limit of 10? M. Therefore, proposed sensor may serve as a potential candidate for non-enzymatic glucose sensing application. 2016 American Scientific Publishers All rights reserved.