Development of an amperometric H2O2 sensor based on MOx/reduced graphene oxide nanocomposites

Author

Leonardi, S.G. ; Aloisio, D. ; Donato, N. ; Latino, M. ; Russo, P. ; Pinna, N. ; Neri, G.

Author_Institution

Dept. of Electron. Eng., Chem. & Ind. Eng., Univ. of Messina, Messina, Italy

fYear

2013

fDate

16-20 June 2013

Firstpage

1158

Lastpage

1161

Abstract

Pt-MOx/RGO composites (MOx = SnO₂, TiO₂) have been synthesized by a simple and fast non-aqueous sol-gel procedure assisted by microwave and characterized by SEM, TEM, XPS, XRD and FTIR spectroscopy. Screen-printed flexible sensors based on the composites synthesized have been applied for the amperometric detection of hydrogen peroxide (H₂O₂). The electrochemical characteristics of various Pt-MOx/RGO-modified screen printed electrodes were investigated and discussed. The developed sensor allowed the detection of H₂O₂, with a linear response from 0.1 to 20 mM of H₂O₂ and a sensitivity of 40 μA mM^-1 cm^-2, exhibiting furthermore good reproducibility and stability.

Keywords

Fourier transform spectroscopy; X-ray diffraction; X-ray photoelectron spectra; amperometric sensors; electrochemical electrodes; graphene; hydrogen compounds; infrared spectroscopy; nanocomposites; nanosensors; platinum; scanning electron microscopy; sol-gel processing; thick film sensors; tin compounds; titanium compounds; transmission electron microscopy; FTIR spectroscopy; H₂O₂; Pt-SnO₂-CO; Pt-TiO₂-CO; SEM; TEM; XPS; XRD; amperometric sensor; graphene oxide nanocomposite; hydrogen peroxide dectection; microwave assisted nonaqueous sol-gel process; screen printed electrode; screen printed flexible sensor; Electrodes; Graphene; Hydrogen; Metals; Nanocomposites; Nanoparticles; Amperometric sensor; graphene oxide; hydrogen peroxide; nanocomposites;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on

Conference_Location

Barcelona

Type

conf

DOI

10.1109/Transducers.2013.6626978

Filename

6626978