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Title: Electrochemical sensing of hydrogen peroxide based on nano γ-Fe2O3 modified glassy carbon electrode
Authors: Singh, Beer Pal
Tyagi, Shrestha
Gautam, Yogendra K
Malik, Anil K
Vega-Olivencia, Carmen A
Keywords: γ-Fe2O3;Modified GC electrode;Electrochemical sensing;CV;Hydrogen peroxide
Issue Date: Jun-2020
Publisher: NISCAIR-CSIR, India
Abstract: Maghemite (γ-Fe2O3) nanoparticles were prepared using chemical synthesis method and used for sensing the hydrogen peroxide. The morphology of the γ-Fe2O3 nanoparticles was characterized by scanning electron microscopy. The γ-Fe2O3 nanoparticles were used to modify glassy carbon electrode (GCE) to form nano γ-Fe2O3 modified GC electrode for electrochemical sensing of hydrogen peroxide (H2O2). A potential controlled cyclic voltammetric (CV) technique was performed to sense hydrogen peroxide using nano γ-Fe2O3 modified GC electrode. The nano γ-Fe2O3 modified GC electrode showed excellent electrocatalytic ability towards H2O2 in 0.1M KCl supporting electrolyte. A significant enhancement in anodic peak current was observed for the nano γ-Fe2O3 modified GC electrode than those of bare electrode. The electrochemical characteristics of hydrogen peroxide on nano γ-Fe2O3 modified GC electrode  had been explored in this research communication.
Page(s): 162-166
ISSN: 2581-8198 (Online)
Appears in Collections:AIR Vol.02(2) [June 2020]

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