Archive | 2021
One-pot Green Synthesis of Palladium Doped Reduced Graphene Oxide Composite For Electrochemical Determination of Hydrogen Peroxide
Abstract
In the present study, a modified electrosensor based on one-pot green synthesized palladium doped reduced graphene oxide composite (Pd@rGO) has been developed for the electrochemical determination of hydrogen peroxide. The electrochemical features of the electrosensor was appraised by cyclic voltammetry (CV) and differential puls voltammetry (DPV) techniques. The Pd@rGO modified glassy carbon electrode exhibited a superior electroactivity as against to unmodified glassy carbon electrode (GCE). It demonstrated a superior performance toward hydrogen peroxide in the concentration range of 10 μM and 1.0 mM with a detection limit of 0.12 μM. The selectivity of the sensor was investigated in the presence of various biological interferents like glucose, ascorbic acid, dopamine, paracetamol and uric acid. The results showed that the electrosensor had no considerable reponse to those of intererent substances.