FABRICATION AND CHARACTERIZATION OF CEO2/RGO CONDUCTING ELECTRODES

Abstract

Fabrication of advanced electrode material is highly desired for novel electrochemical sensor development. In this work, cerium oxide (CeO2) nanoparticles were successfully loaded on reduced graphene oxide (RGO) by one-step hydrothermal synthesis approach, and this nanocomposite (CeO2/ rGO) was used as novel electrode material for urea detection. Herein, efforts have been made to fabricate a conducting paper based sensor comprising of CeO2/rGO nanocomposite and PEDOT: PSS. The conductivity of the PEDOT: PSS coated paper significantly increases from 6.9 x 10-5 S/cm to 1.1 x 10-4 S/cm on treatment with ethylene glycol. Further, the modification of conducting paper with synthesized CeO2/rGO nanocomposite shows better electrochemical properties.