|About this Abstract
||Materials Science & Technology 2011
||MS&T'11 Poster Session
||027 Synthesis of Prussian Blue/Palladium Nanocomposite and Its Application in the Electrocatalytic Determination of Hydrogen Peroxide
||Ashish Kumar Pandey, Dheeraj Singh Chauhan, Prem Chandra Pandey
|On-Site Speaker (Planned)
||Ashish Kumar Pandey
The present work is focussed on the fabrication of an efficient hydrogen peroxide (H2O2) sensor prepared from Prussian blue/Palladium (PB/Pd) nanocomposite. PB was synthesized following facile chemical method by the addition of an aqueous solution of ferrous sulphate to an equimolar solution of potassium ferricyanide. Palladium chloride was reduced by 3-Glycidoxypropyltrimethoxysilane following high temperature treatment. The electrochemical behavior of PB was tremendously enhanced by the incorporation of palladium metal resulting in the formation of PB/Pd nanocomposite. Thus obtained nanocomposite was utilized to modify the carbon paste electrode (CPE), leading to the development of an electrochemical sensor for H2O2. The results of cyclic voltammery and amperometric measurements are reported in this communication. The sensitivity for H2O2 determination was found out to be 22.89 AmM-1cm-2 with a limit of detection of 500 nM. The results on the effect of pH suggested that lowering of pH lead to improved kinetics of H2O2 reduction.