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Facile fabrication of Pt nanoparticles on 1-pyrenamine functionalized graphene nanosheets for methanol electrooxidation

ACS Sustainable Chemistry and Engineering, ISSN: 2168-0485, Vol: 1, Issue: 5, Page: 527-533
2013
  • 39
    Citations
  • 26
    Usage
  • 13
    Captures
  • 0
    Mentions
  • 13
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    39
    • Citation Indexes
      39
  • Usage
    26
  • Captures
    13
  • Social Media
    13
    • Shares, Likes & Comments
      13
      • Facebook
        13

Article Description

In this paper, noncovalent functionalized graphene nanosheets are prepared through solvent-exfoliation expanded graphite with the aid of supercritical (SC) CO and 1-pyrenamine (PA). Then, it is used as supporting materials for platinum to investigate the potential application of the obtained nanocomposite in direct methanol fuel cells (DMFCs). Transmission electron microscope (TEM) images reveal that Pt nanoparticles are evenly dispersed on the PAmodified graphite nanosheets (PA-GNS) with an average size of 3.0 nm. The high quality of PA-GNS is also confirmed through Raman spectra analysis. PA-GNS/Pt nanocomposites exhibit better electrocatalytic activity (1.4 times) and stability (3.5 times) toward methanol oxidation than commercial catalyst JM-C/Pt. The results suggest that noncovalent functionalization of GNS by PA can be a method used to create highly efficient and stable catalyst supports for methanol electrooxidation in DMFCs. © 2013 American Chemical Society.

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