Title

Platinum Nanoparticles Anchored on Chelating Group-Modified Graphene for Methanol Oxidation

Document Type

Article

Publication Date

1-15-2012

Abstract

Platinum nanoparticles (Pt-NPs) were deposited onto N-(trimethoxy- silylpropyl) ethylenediamine triacetic acid (EDTA-silane) modified reduced graphene oxide (EDTA-RGO). The EDTA-RGO/Pt-NPs were coated onto a glass carbon electrode and characterized using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectra, and electrochemical tests. The chelating groups create a micro-environment that is suitable for the catalytic behavior of Pt-NPs. Compared with traditional carbon-based Pt catalysts, EDTA-RGO/Pt-NPs exhibit great tolerance towards poisoning by CO.Graphene-supported Pt nanoparticles can be used for the fabrication of fuel cell electrodes and other catalytic devices.

DOI

10.1016/j.jpowsour.2011.09.073

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