Constructing and Investigation of the Electrochemical Behaviour of Nanocomposite of Conducting Polymers on Copper Hydroxide Nanotubes: Application to Determination of Glucose
Paper ID : 1244-ICNS
Authors:
Reza Manafi1, Saeed Shahrokhian *2, mohammad hafezi3
1Department of Chemistry, Sharif University of Technology, Tehran, 11155–9516, Iran
2Department of Chemistry, Sharif University of Technology, tehran, Iran
3Department of Chemistry, Sharif University of Technology, Tehran 11155–9516, Iran
Abstract:
In this study, modification of glassy carbon electrode done by nanocomposite of poly-pyrrole and Cu(OH)2 nanotubes as non-enzymatic glucose sensors. First of all, a thin film of Cu(OH)2 nanotubes prepared on glassy carbon electrode with facile and simple method. Then, pyrrole with sodium benzene-1,3- disulfonate as a dopant anion electropolymerizied in presence of Cu(OH)2 nanotubes on the glassy carbon electrode. Due to unique properties of the prepared film coated PPy/Cu(OH)2 nanocomposite electrode such as uniform and vertically aligned structure, excellent stability, high electroactive surface area, and good availability to analyte and electrolyte diffusion, it was directly used as the electrode for non-enzymatic electrocatalytic oxidation of glucose. Moreover, the designed electrode demonstrated two wide linear dynamic range of 0.002 – 1.4 mM and 1.4 -4 mM with a high sensitivity of 1044 µA mM-1 cm-2 and 682 µA mM-1 cm-2, respectively, for glucose determination. The surface morphology of the nanocomposite film (PPy/Cu(OH)2) deposited on glassy
carbon electrode is characterized by scanning electron microscopy (SEM).
Keywords:
Non-enzymatic glucose sensor, glassy carbon electrode, Polypyrrole, Cu(OH)2 nanotubes, Electropolymerization
Status : Abstract Accepted (Poster Presentation)