Amperometric glucose sensing based on the binary electrocatalytic effect of nanorod arrays of Co-organic framework grown on porous nickel electrode
Paper ID : 1452-ICNS
Authors:
Amir Hatamie1, Amir Hemmati *1, Amin Mahmoodi1, Reza Rahmati1, Valiollah Nobakht2, Abdulreza Simchi3
1Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran.
2Department of Chemistry, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
3Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran. Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
Abstract:
Co-organic framework (Co-MOF) nanowires were grown on nickel foams (NiF) via layer-by-layer deposition method. The MOF nanorods had an average diameter of 35±10 nm. The hybrid Co-MOFs@NiF electrode showed a bicatalytic effect on glucose oxidation due to the synergistic effect of nickel and cobalt ions with variable oxidation states. A significant drop in the onset of glucose oxidation potential to 0.21 V/Ag│AgCl and an increase in the current density of glucose oxidation in alkaline media were noticed. Detection sensitivity of 0.14 µA µM−1 with the response time of ∼4s in a linear range of 0.04 to 0.36 mM was obtained.
Keywords:
Metal−organic framework; Electrochemistry; Sensor; Layer-by-layer synthesis.
Status : Abstract Accepted (Poster Presentation)