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http://hdl.handle.net/10773/21019
Title: | Amperometric Sensing of H2O2 using Pt-TiO2/Reduced Graphene Oxide Nanocomposites |
Author: | Leonardi, Salvatore Gianluca Aloisio, Davide Donato, Nicola Russo, Patricia A. Ferro, Marta C. Pinna, Nicola Neri, Giovanni |
Keywords: | HYDROGEN-PEROXIDE REDUCTION FUNCTIONALIZED GRAPHENE GRAPHITE OXIDE NONAQUEOUS SYNTHESIS MESOPOROUS PLATINUM FUEL-CELLS NANOPARTICLES OXIDATION NANOSTRUCTURES BIOSENSOR |
Issue Date: | 2014 |
Publisher: | WILEY-V C H VERLAG GMBH |
Abstract: | Nanostructures made of titanium dioxide and/or platinum nanoparticles supported on reduced graphene oxide (RGO) were synthesized by a simple and fast microwave-assisted route and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier-transform infrared (FTIR) and Raman spectroscopies. The composites consist of RGO sheets fully and homogeneously coated with a dense layer of 8 nm TiO2 and/or 2 nm Pt nanoparticles. Screen-printed flexible sensors based on Pt-TiO2/RGO composites are applied for the amperometric detection of hydrogen peroxide ( H2O2). The electrochemical characteristics of Pt/RGO, TiO2/RGO and Pt-TiO2/RGO-modified screen printed electrodes are investigated and discussed. The developed sensor allows the detection of H2O2, with a linear response from 0 to 20 mm of H2O2 and a sensitivity of 40 mu AmM-1 cm(-2). The resulting device is also suitable for the analysis of this toxic compound in milk. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/21019 |
DOI: | 10.1002/celc.201300106 |
ISSN: | 2196-0216 |
Publisher Version: | 10.1002/celc.201300106 |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Amperometric Sensing of H2O2 using Pt-TiO2Reduced Graphene Oxide Nanocomposites_10.1002celc.201300106.pdf | 1.42 MB | Adobe PDF |
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