Platinum nanoparticles anchored on chelating group-modified graphene for methanol oxidation

Marzena S. Wietecha, Jun Zhu, Guihua Gao, Ning Wang, Huan Feng, Matthew Gorring, Marc Kasner, Shifeng Hou

Research output: Contribution to journalArticle

52 Scopus citations

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.

Original languageEnglish
Pages (from-to)30-35
Number of pages6
JournalJournal of Power Sources
Volume198
DOIs
StatePublished - 15 Jan 2012

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Keywords

  • Electrochemical catalyst
  • Fuel cell
  • Graphene oxide
  • Methanol
  • Platinum nanoparticles

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