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Facile Fabrication of Pt-Ag Bimetallic Nanoparticles Decorated Reduced Graphene Oxide for Highly Sensitive Non-Enzymatic Hydrogen Peroxide Sensing

Facile Fabrication of Pt-Ag Bimetallic Nanoparticles Decorated Reduced Graphene Oxide for Highly Sensitive Non-Enzymatic Hydrogen Peroxide Sensing

Cong Zhang, Yanyan Zhang, Xin Du, Yuan Chen, Wenhao Dong, Bingkai Han, Qiang Chen

Talanta. 2016 Oct 1;159:280-286.

PMID: 27474309

Abstract:

A new electrocatalyst, Pt-Ag bimetallic nanoparticles decorated reduced graphene oxide nanocomposite, was successfully synthesized by a facile, eco-friendly and controllable route. The morphological characterization of RGO/Pt-Ag NPs nanocomposite was examined by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX) analyzer, X-ray diffraction (XRD) spectrum, and Fourier transform infrared spectrum (FT-IR), respectively. And then, the RGO/Pt-Ag NPs nanocomposite was immobilized on the surface of glassy carbon (GC) electrode to fabricate a novel and highly sensitive non-enzymatic hydrogen peroxide sensor. The electrochemical behaviors of the prepared sensor were investigated by cyclic voltammetry and chronoamperometry. The sensor showed excellent performance toward H2O2 with sensitivity as high as 699.6 μA mM(-1)cm(-2) and 402.7 μA mM(-1)cm(-2), wide linear range of 0.005-1.5mM and 1.5-7mM, and low detection limit of 0.04μM (S/N=3). Moreover, the prepared hydrogen peroxide sensor was applied to in real samples with satisfactory results. These excellent results indicate that the prepared RGO/Pt-Ag NPs nanocomposite has broad application prospect in the field of sensors.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS71754	Pt/reduced graphene oxide nanocomposite			Price

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